Merge pull request #1844 from ramox81/codex/import-formats

IMPORT: read SAT, STEP, IGES and WMF files; ACISIN and WMFIN

# Conflicts:
#	Cargo.lock
This commit is contained in:
Hakan Seven committed 2026-10-16 22:41:32 +03:00
commit c3baff7ea2
48 files changed
+4934 -119

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+5
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@@ -664,6 +664,11 @@ impl OpenCADStudio {
self.tabs[i].snap_result = None;
return self.run_dgn_import(i, request);
}
CmdResult::TdsImport(request) => {
self.tabs[i].active_cmd = None;
self.tabs[i].snap_result = None;
self.run_tds_import(i, request);
}
CmdResult::PdfImportFile(import) => {
self.tabs[i].scene.clear_preview_wire();
self.tabs[i].active_cmd = None;
+115 -3
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@@ -8,6 +8,7 @@ use std::collections::HashMap;
use std::sync::Arc;
use super::*;
use crate::io::model_import::ModelFormat;
use crate::modules::insert::dgn_import::{self, DgnImportCommand, DgnImportRequest};
use crate::ui::window::import_dialogs::{
unsupported_reason, DgnImportState, ImportDialogMsg, ImportFileState, Support, FORMATS,
@@ -18,7 +19,7 @@ const RECENT: usize = 5;
/// Picks a file and registers its bytes (the web build reads them only
/// here); `None` when the picker is cancelled.
async fn pick(title: String, filters: Vec<(String, Vec<String>)>) -> Option<String> {
pub(super) async fn pick(title: String, filters: Vec<(String, Vec<String>)>) -> Option<String> {
let mut dialog = crate::sys::file_dialog().set_title(title.as_str());
for (name, extensions) in &filters {
let extensions: Vec<&str> = extensions.iter().map(String::as_str).collect();
@@ -62,6 +63,9 @@ fn is_dgn(path: &str) -> bool {
enum Route {
Pdf,
Dgn,
Model(ModelFormat),
Wmf,
Tds,
}
/// The importer for `path` chosen as `format` (an index of [`FORMATS`]; `None`
@@ -75,6 +79,22 @@ fn route(path: &str, format: Option<usize>) -> Result<Route, String> {
}
let ext = extension(path);
let by_extension = f.is_none_or(|f| f.support == Support::ByExtension);
// The chosen format, or the one whose patterns name the extension.
let named = if by_extension {
FORMATS
.iter()
.find(|f| f.extensions.iter().any(|e| e.eq_ignore_ascii_case(&ext)))
} else {
f
};
match named.map(|f| f.name) {
Some("ACIS") => return Ok(Route::Model(ModelFormat::Sat)),
Some("STEP") => return Ok(Route::Model(ModelFormat::Step)),
Some("IGES") => return Ok(Route::Model(ModelFormat::Iges)),
Some("Metafile") => return Ok(Route::Wmf),
Some("3D Studio") => return Ok(Route::Tds),
_ => {}
}
let pdf = if by_extension { ext == "pdf" } else { f.is_some_and(|f| f.name == "PDF Files") };
if pdf {
return Ok(Route::Pdf);
@@ -111,8 +131,8 @@ impl OpenCADStudio {
Some(Task::none())
}
("IMPORT", true) => {
use crate::command::{CadCommand, ValuePromptCommand};
let command = ValuePromptCommand::new("_IMPORTFILE", "Enter import file name:");
use crate::command::{CadCommand, FreeTextValuePromptCommand};
let command = FreeTextValuePromptCommand::new("_IMPORTFILE", "Enter import file name:");
self.command_line.push_info(&command.prompt());
self.tabs[i].active_cmd = Some(Box::new(command));
Some(Task::none())
@@ -217,6 +237,24 @@ impl OpenCADStudio {
}
self.dispatch_command(&format!("-DGNIMPORT {path}"))
}
Ok(Route::Model(format)) => {
self.remember_import(path);
let i = self.active_tab;
self.import_model(i, path, format)
}
Ok(Route::Wmf) => {
self.remember_import(path);
let i = self.active_tab;
self.import_wmf(i, path, false)
}
// The options window opens whatever FILEDIA is.
Ok(Route::Tds) => {
self.remember_import(path);
if let Err(error) = self.open_tds_import_dialog(path) {
self.command_line.push_error(&error);
}
Task::none()
}
Err(error) => {
self.command_line.push_error(&error);
Task::none()
@@ -232,6 +270,7 @@ impl OpenCADStudio {
"dgn" => crate::t!(
"Imports a DGN model as drawing objects: levels as layers, cells as blocks."
),
"3ds" => std::borrow::Cow::Owned(crate::tr!("import-3ds", "help")),
_ => crate::t!(
"Imports a file of the chosen format with the format's importer."
),
@@ -324,8 +363,81 @@ impl OpenCADStudio {
self.command_line.push_error(&error);
}
}
Ok(Route::Model(kind)) => {
self.remember_import(&path);
self.close_active_modal();
return self.import_model(i, &path, kind);
}
Ok(Route::Wmf) => {
self.remember_import(&path);
self.close_active_modal();
return self.import_wmf(i, &path, false);
}
Ok(Route::Tds) => {
self.remember_import(&path);
self.close_active_modal();
if let Err(error) = self.open_tds_import_dialog(&path) {
self.command_line.push_error(&error);
}
}
}
}
// ── 3D Studio Import ─────────────────────────────────────────
ImportDialogMsg::TdsChange => {
let title = crate::t!("Import File").into_owned();
let filters = vec![("3D Studio (*.3ds)".to_string(), vec!["3ds".to_string()])];
return Task::perform(pick(title, filters), |path| {
Message::ImportDialog(ImportDialogMsg::TdsPicked(path))
});
}
ImportDialogMsg::TdsPicked(Some(path)) => {
if let Err(error) = self.open_tds_import_dialog(&path) {
self.command_line.push_error(&error);
}
}
ImportDialogMsg::TdsPicked(None) => {}
ImportDialogMsg::TdsCheck(k, on) => {
if let Some(c) = self.import_dialogs.tds.as_mut().and_then(|s| s.checked.get_mut(k)) {
*c = on;
}
}
ImportDialogMsg::TdsAll | ImportDialogMsg::TdsClear => {
let on = matches!(message, ImportDialogMsg::TdsAll);
if let Some(s) = self.import_dialogs.tds.as_mut() {
s.checked.iter_mut().for_each(|c| *c = on);
}
}
ImportDialogMsg::TdsFilter(k) => {
if let Some(s) = self.import_dialogs.tds.as_mut() {
s.filter = k.min(4);
}
}
ImportDialogMsg::TdsSearch(text) => {
if let Some(s) = self.import_dialogs.tds.as_mut() {
s.search = text;
}
}
ImportDialogMsg::TdsLayers(k) => {
if let Some(s) = self.import_dialogs.tds.as_mut() {
s.layers = k.min(3);
}
}
ImportDialogMsg::TdsMulti(k) => {
if let Some(s) = self.import_dialogs.tds.as_mut() {
s.multi = k.min(3);
}
}
ImportDialogMsg::TdsOk => {
let Some(state) = self.import_dialogs.tds.take() else {
return Task::none();
};
if !state.checked.iter().any(|c| *c) {
self.import_dialogs.tds = Some(state);
return Task::none();
}
self.close_active_modal();
return self.start_tds_import(i, state);
}
// ── DGN Import ───────────────────────────────────────────────
ImportDialogMsg::DgnChange => return self.pick_dgn_file(),
ImportDialogMsg::DgnPicked(Some(path)) => {
+6
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@@ -20,6 +20,7 @@ mod fileops;
mod inquiry;
mod layerprops;
mod layers;
mod model_import;
mod pc_colormap;
mod pc_extract;
mod pdf_dialogs;
@@ -415,6 +416,9 @@ impl OpenCADStudio {
if let Some(t) = self.dispatch_import(cmd, i) {
return Some(t);
}
if let Some(t) = self.dispatch_model_import(cmd, i) {
return Some(t);
}
if let Some(t) = self.dispatch_bvisibility(cmd, i) {
return Some(t);
}
@@ -1016,6 +1020,8 @@ inventory::submit!(crate::command::CommandRegistration {
"QNEW",
"OBJIMPORT",
"IMPORT",
"ACISIN",
"WMFIN",
"DGNIMPORT",
"-DGNIMPORT",
"OPEN",
+419
View File
@@ -0,0 +1,419 @@
//! ACISIN and WMFIN, and the files IMPORT routes here: ACIS text (SAT),
//! STEP and IGES models and Windows metafiles, read into the current drawing
//! as one undo step.
use super::*;
use crate::io::model_import::{self, ModelFormat};
impl OpenCADStudio {
/// ACISIN and WMFIN; `None` defers to the other families.
pub(super) fn dispatch_model_import(&mut self, cmd: &str, i: usize) -> Option<Task<Message>> {
let (verb, rest) = match cmd.trim().split_once(char::is_whitespace) {
Some((verb, rest)) => (verb.to_ascii_uppercase(), rest.trim().trim_matches('"')),
None => (cmd.trim().to_ascii_uppercase(), ""),
};
match (verb.as_str(), rest.is_empty()) {
("ACISIN", true) if crate::sys::file_dia() => {
let filters = vec![("ACIS (*.sat)".to_string(), vec!["sat".to_string()])];
let title = crate::t!("Select ACIS File").into_owned();
Some(Task::perform(super::dgn_import::pick(title, filters), |path| match path {
Some(path) => Message::Command(format!("_ACISINFILE {path}")),
None => Message::Noop,
}))
}
("ACISIN", true) => {
use crate::command::FreeTextValuePromptCommand;
let command = FreeTextValuePromptCommand::new("_ACISINFILE", "Enter SAT file name:");
self.command_line.push_info(&command.prompt());
self.tabs[i].active_cmd = Some(Box::new(command));
Some(Task::none())
}
("ACISIN" | "_ACISINFILE", false) => {
if crate::scene::model::pdf_raster::source_bytes(rest).is_none() {
let name = std::path::Path::new(rest)
.file_name()
.map_or_else(|| rest.to_string(), |n| n.to_string_lossy().into_owned());
let here = std::env::current_dir()
.map(|d| d.display().to_string())
.unwrap_or_default();
self.command_line.push_error(&format!(
"\"{name}\": Can't find file in search path:\n {here}\\ (current directory)"
));
return Some(Task::none());
}
Some(self.import_model(i, rest, ModelFormat::Sat))
}
("_ACISINFILE", true) => Some(Task::none()),
("WMFIN", true) if crate::sys::file_dia() => {
let filters = vec![("Metafile (*.wmf)".to_string(), vec!["wmf".to_string()])];
let title = crate::t!("Import WMF").into_owned();
Some(Task::perform(super::dgn_import::pick(title, filters), |path| match path {
Some(path) => Message::Command(format!("_WMFINFILE {path}")),
None => Message::Noop,
}))
}
("WMFIN", true) => {
use crate::command::FreeTextValuePromptCommand;
let command = FreeTextValuePromptCommand::new(
"_WMFINFILE",
"Enter name of WMF file to import (no extension):",
);
self.command_line.push_info(&command.prompt());
self.tabs[i].active_cmd = Some(Box::new(command));
Some(Task::none())
}
("WMFIN" | "_WMFINFILE", false) => {
let path = if std::path::Path::new(rest).extension().is_some() {
rest.to_string()
} else {
format!("{rest}.wmf")
};
Some(self.import_wmf(i, &path, true))
}
("_WMFINFILE", true) => Some(Task::none()),
_ => None,
}
}
/// Reads a model file into drawing `i`.
pub(in crate::app) fn import_model(&mut self, i: usize, path: &str, format: ModelFormat) -> Task<Message> {
let Some(bytes) = crate::scene::model::pdf_raster::source_bytes(path) else {
self.command_line
.push_error(&format!("File {path} does not exist."));
return Task::none();
};
// The translated formats report the job as they run.
let translated = format != ModelFormat::Sat;
if translated {
self.command_line
.push_output("Import job in progress. Press Esc key to cancel.");
}
let drawing_mm = crate::app::properties::insunits_to_mm(
self.tabs[i].scene.document.header.insertion_units,
);
let Some(imported) = model_import::read(format, &bytes, drawing_mm) else {
let shown = path.replace('/', "\\");
match format {
ModelFormat::Sat => {
self.command_line.push_error("Modeling Operation Error:");
self.command_line.push_error("Error Code Number is 58000");
self.command_line
.push_error(&format!("Unable to read the ACIS file {shown}."));
}
_ => self
.command_line
.push_error(&format!("Import failed: {shown} has no model the importer reads.")),
}
return Task::none();
};
self.push_undo_snapshot(i, "IMPORT");
let scene = &mut self.tabs[i].scene;
// A block the drawing already has keeps its definition and is
// inserted as it is.
for (name, entities) in imported.blocks {
if scene.document.block_records.get(&name).is_none() {
let _ = scene.define_block_from_owned_entities(entities, &name, glam::DVec3::ZERO);
}
}
for entity in imported.entities {
scene.add_entity(entity);
}
self.tabs[i].dirty = true;
if translated {
self.command_line.push_output("Import Job Complete");
}
self.refresh_properties();
Task::none()
}
/// A metafile as a new block `WMF<n>`, fitted to half the current view:
/// placed at the view's top-left corner (IMPORT), or by the insertion
/// prompts (WMFIN).
pub(in crate::app) fn import_wmf(&mut self, i: usize, path: &str, prompt: bool) -> Task<Message> {
let Some(bytes) = crate::scene::model::pdf_raster::source_bytes(path) else {
self.command_line
.push_error(&format!("File {path} does not exist."));
return Task::none();
};
let (centre, size, pixel) = self.tabs[i].scene.view_window();
let Some(mut picture) =
crate::io::wmf_import::read(&bytes, [0.5 * size[0], 0.5 * size[1]])
else {
self.command_line
.push_error(&format!("{} is not a valid Windows metafile.", path.replace('/', "\\")));
return Task::none();
};
self.push_undo_snapshot(i, if prompt { "WMFIN" } else { "IMPORT" });
let scene = &mut self.tabs[i].scene;
// A text style per face, `WMF-<face><n>` with `n` counting the
// face's bold and italic variants; the style's font is the
// installed file of that face, none when it is not installed. A
// style the drawing already has is used as it is.
let mut styles: Vec<String> = Vec::new();
for (k, face) in picture.fonts.iter().enumerate() {
let n = picture.fonts[..k].iter().filter(|f| f.name == face.name).count();
let name = format!("WMF-{}{n}", face.name);
if !scene.document.text_styles.contains(&name) {
let mut style = codec::tables::TextStyle::new(name.as_str());
style.handle = scene.document.allocate_handle();
style.font_file =
crate::scene::text::sysfont::face_file(&face.name, face.bold, face.italic).unwrap_or_default();
let _ = scene.document.text_styles.add(style);
}
styles.push(name);
}
for (at, font) in &picture.text_fonts {
if let Some(codec::EntityType::Text(text)) = picture.entities.get_mut(*at) {
text.style = styles[*font].clone();
}
}
let mut n = 0;
let name = loop {
let name = format!("WMF{n}");
if scene.document.block_records.get(&name).is_none() {
break name;
}
n += 1;
};
if let Err(error) =
scene.define_block_from_owned_entities(picture.entities, &name, glam::DVec3::ZERO)
{
self.command_line.push_error(&error);
return Task::none();
}
self.tabs[i].dirty = true;
if prompt {
use crate::command::CadCommand;
use crate::modules::insert::insert_block::InsertBlockCommand;
let preview = self.tabs[i].scene.block_preview_wires(&name);
let command = InsertBlockCommand::classic_for_block(name, preview, String::new());
self.command_line.push_info(&command.prompt());
self.tabs[i].active_cmd = Some(Box::new(command));
} else {
// The view's top-left corner, a pixel or two in.
let corner = codec::types::Vector3::new(
centre[0] - 0.5 * size[0] + pixel,
centre[1] + 0.5 * size[1] - 2.0 * pixel,
0.0,
);
let insert = codec::entities::Insert::new(&name, corner);
self.tabs[i].scene.add_entity(codec::EntityType::Insert(insert));
self.refresh_properties();
}
Task::none()
}
}
impl OpenCADStudio {
/// The 3D Studio Import window for a file; an error when it is no 3D
/// Studio file.
pub(in crate::app) fn open_tds_import_dialog(&mut self, path: &str) -> Result<(), String> {
let scene = crate::scene::model::pdf_raster::source_bytes(path)
.and_then(|bytes| crate::io::tds_import::read(&bytes))
.ok_or_else(|| format!("{} is not a valid 3D Studio file.", path.replace('/', "\\")))?;
let mut objects: Vec<(String, &'static str, usize)> = scene
.objects
.iter()
.map(|(name, object)| {
let materials = match object {
crate::io::tds_import::TdsObject::Mesh(mesh) => scene.mesh_materials(mesh).len(),
_ => 0,
};
(name.clone(), object.kind(), materials)
})
.collect();
objects.sort_by_key(|o| o.0.to_lowercase());
objects.insert(0, ("Global Settings".to_string(), "Global", 0));
// The layer and material choices made last stay; nothing starts
// checked.
let previous = self.import_dialogs.tds.take();
self.import_dialogs.tds = Some(crate::ui::window::import_dialogs::TdsImportState {
path: path.to_string(),
checked: vec![false; objects.len()],
objects,
materials: scene.materials.len(),
filter: 0,
search: String::new(),
layers: previous.as_ref().map_or(0, |s| s.layers),
multi: previous.as_ref().map_or(0, |s| s.multi),
});
self.active_modal = Some(crate::app::ModalKind::TdsImport);
Ok(())
}
/// The window's choices as an import: asked mesh by mesh first when set
/// to ask and some checked mesh has several materials.
pub(in crate::app) fn start_tds_import(
&mut self,
i: usize,
state: crate::ui::window::import_dialogs::TdsImportState,
) -> Task<Message> {
use crate::io::tds_import::{LayerMode, MultiMaterial, TdsObject};
use crate::modules::insert::tds_import::{TdsImportRequest, TdsMaterialCommand};
let Some(scene) = crate::scene::model::pdf_raster::source_bytes(&state.path)
.and_then(|bytes| crate::io::tds_import::read(&bytes))
else {
return Task::none();
};
let selected: Vec<String> = state
.objects
.iter()
.zip(&state.checked)
.filter(|(_, on)| **on)
.map(|((name, _, _), _)| name.clone())
.collect();
let several: Vec<(String, Vec<String>)> = scene
.objects
.iter()
.filter(|(name, _)| selected.contains(name))
.filter_map(|(name, object)| match object {
TdsObject::Mesh(mesh) => {
let materials = scene.mesh_materials(mesh);
(materials.len() > 1).then(|| (name.clone(), materials))
}
_ => None,
})
.collect();
let choice = match state.multi {
1 => Some(MultiMaterial::Split),
2 => Some(MultiMaterial::First),
3 => Some(MultiMaterial::Material(None)),
_ => None,
};
let mut request = TdsImportRequest {
path: state.path.clone(),
selected,
layers: match state.layers {
1 => LayerMode::ByMaterial,
2 => LayerMode::ByObjectColor,
3 => LayerMode::Single,
_ => LayerMode::ByObject,
},
multi: Default::default(),
compact: matches!(state.multi, 0 | 1),
};
match choice {
Some(choice) => {
for (name, _) in several {
request.multi.insert(name, choice.clone());
}
}
None if !several.is_empty() => {
use crate::command::CadCommand;
let command = TdsMaterialCommand::new(request, several);
self.command_line.push_info(&command.prompt());
self.tabs[i].active_cmd = Some(Box::new(command));
return Task::none();
}
None => {}
}
self.run_tds_import(i, request);
Task::none()
}
/// The import itself, one undo step: the meshes on their layers with
/// their materials, the cameras as named views.
pub(in crate::app) fn run_tds_import(
&mut self,
i: usize,
request: crate::modules::insert::tds_import::TdsImportRequest,
) {
use codec::objects::ObjectType;
let Some(scene) = crate::scene::model::pdf_raster::source_bytes(&request.path)
.and_then(|bytes| crate::io::tds_import::read(&bytes))
else {
self.command_line.push_error(&format!(
"{} is not a valid 3D Studio file.",
request.path.replace('/', "\\")
));
return;
};
let import = crate::io::tds_import::convert(
&scene,
&crate::io::tds_import::TdsOptions {
selected: request.selected.clone(),
layers: request.layers,
multi: request.multi.clone(),
compact: request.compact,
},
);
self.push_undo_snapshot(i, "IMPORT");
let document = &mut self.tabs[i].scene.document;
// Materials by name: the drawing's own when it has one, else one
// made from the file's colours.
let mut materials: std::collections::HashMap<String, codec::Handle> = Default::default();
for name in &import.materials {
let existing = document.objects.iter().find_map(|(h, o)| match o {
ObjectType::Material(m) if m.name.eq_ignore_ascii_case(name) => Some(*h),
_ => None,
});
let handle = match existing {
Some(h) => h,
None => {
let source = scene.materials.iter().find(|m| m.name == *name);
let mut material = codec::objects::Material::new();
material.handle = document.allocate_handle();
material.owner = document.header.acad_material_dict_handle;
material.name = name.clone();
let color = |rgb: Option<[u8; 3]>| match rgb {
Some([r, g, b]) => codec::objects::MaterialColor {
flag: 1,
factor: 1.0,
rgb: Some(
((0xC2u32 << 24) | (u32::from(r) << 16) | (u32::from(g) << 8) | u32::from(b))
as i32,
),
},
None => codec::objects::MaterialColor::default(),
};
material.ambient_color = color(source.and_then(|m| m.ambient));
material.diffuse_color = color(source.and_then(|m| m.diffuse));
material.specular_color = color(source.and_then(|m| m.specular));
let handle = material.handle;
let dictionary = document.header.acad_material_dict_handle;
if let Some(ObjectType::Dictionary(dictionary)) = document.objects.get_mut(&dictionary) {
dictionary.add_entry(name.clone(), handle);
}
document.objects.insert(handle, ObjectType::Material(material));
handle
}
};
materials.insert(name.clone(), handle);
}
for part in &import.parts {
if !document.layers.contains(&part.layer) {
let mut layer = codec::tables::Layer::new(part.layer.as_str());
layer.handle = document.allocate_handle();
let _ = document.layers.add(layer);
}
}
for view in &import.views {
let mut named = codec::tables::View::new(view.name.as_str());
named.target = codec::types::Vector3::new(view.target[0], view.target[1], view.target[2]);
named.direction =
codec::types::Vector3::new(view.direction[0], view.direction[1], view.direction[2]);
named.height = view.height;
named.width = view.height;
named.lens_length = view.lens;
named.handle = match document.views.get(&view.name) {
Some(old) => old.handle,
None => document.allocate_handle(),
};
document.views.add_or_replace(named);
}
for part in import.parts {
let mut mesh = part.mesh;
mesh.common.layer = part.layer.clone();
mesh.common.material_handle = part.material.as_ref().and_then(|m| materials.get(m).copied());
if mesh.common.material_handle.is_some() {
mesh.common.material_flags = 0b11;
}
self.tabs[i].scene.add_entity(codec::EntityType::PolyfaceMesh(mesh));
}
for line in &import.messages {
self.command_line.push_output(line);
}
self.tabs[i].dirty = true;
self.refresh_properties();
}
}
+40
View File
@@ -112,6 +112,7 @@ pub(super) const NAMES: &[&str] = &[
"pdf_import_pick",
"pdf_import_dialog",
"dgn_import_dialog",
"tds_import_dialog",
"refedit_dialog",
"pdf_shx_settings",
"pdf_layer_toggle",
@@ -2234,6 +2235,45 @@ impl OpenCADStudio {
_ => return Err(bad()),
})
}
// The 3D Studio Import window, one field per call: "check=<name>"
// and "uncheck=<name>" (the object's name, or "Global Settings"),
// "all", "clear", "filter=all|mesh|light|camera|general",
// "search=<text>", "layers=object|material|color|single",
// "multi=ask|split|first|none", "path=<file>" (as Change… picks
// it), "ok" or "cancel".
"tds_import_dialog" => {
use crate::ui::window::import_dialogs::ImportDialogMsg as I;
if self.active_modal != Some(crate::app::ModalKind::TdsImport) {
return Err(failure("no_dialog", "The 3D Studio Import window is not open"));
}
let spec = string(req, "value")?;
let (key, value) = spec.split_once('=').unwrap_or((spec, ""));
let bad = || failure("invalid_value", spec);
if key == "cancel" {
return Ok(Task::done(Message::CloseModal));
}
let pick = |options: &[&str]| options.iter().position(|o| *o == value).ok_or_else(bad);
Message::ImportDialog(match key {
"ok" => I::TdsOk,
"all" => I::TdsAll,
"clear" => I::TdsClear,
"check" | "uncheck" => {
let k = self
.import_dialogs
.tds
.as_ref()
.and_then(|s| s.objects.iter().position(|(name, _, _)| name.eq_ignore_ascii_case(value)))
.ok_or_else(bad)?;
I::TdsCheck(k, key == "check")
}
"filter" => I::TdsFilter(pick(&["all", "mesh", "light", "camera", "general"])?),
"search" => I::TdsSearch(value.to_string()),
"layers" => I::TdsLayers(pick(&["object", "material", "color", "single"])?),
"multi" => I::TdsMulti(pick(&["ask", "split", "first", "none"])?),
"path" => I::TdsPicked(Some(value.to_string())),
_ => return Err(bad()),
})
}
// The DGN Import window, one field per call: "path=<file>" (as
// Change… picks it), "model=<n>", "target=new|current",
// "conflict=prefix|ignore", "units=master|sub", "explode=on|off",
+2
View File
@@ -2340,6 +2340,8 @@ pub enum ModalKind {
ImportFile,
/// DGNIMPORT's DGN Import window.
DgnImport,
/// IMPORT's 3D Studio Import window.
TdsImport,
/// Web: a crash-recovery autosave snapshot newer than the drawing's last
/// save awaits a restore/discard decision. Distinct from the corrupt-file
/// `RecoveryPrompt` — nothing is wrong with the drawing itself.
+1
View File
@@ -255,6 +255,7 @@ impl OpenCADStudio {
Some(PdfImportFile) => self.pdf_import_file = None,
Some(ImportFile) => self.import_dialogs.file = None,
Some(DgnImport) => self.import_dialogs.dgn = None,
Some(TdsImport) => self.import_dialogs.tds = None,
Some(XrefAttach) => self.xref_attach = None,
Some(WriteBlock) => self.wblock = None,
Some(Hyperlink) => {
+7
View File
@@ -51,6 +51,7 @@ impl OpenCADStudio {
Some(K::PdfImportFile) => crate::t!("Import PDF").into_owned(),
Some(K::ImportFile) => crate::t!("Import File").into_owned(),
Some(K::DgnImport) => crate::t!("DGN Import").into_owned(),
Some(K::TdsImport) => crate::tr!("import-3ds", "title"),
Some(K::XrefAttach) => crate::t!("Attach External Reference").into_owned(),
Some(K::WriteBlock) => crate::t!("Write Block").into_owned(),
Some(K::GeometricTolerance) => crate::t!("Geometric Tolerance").into_owned(),
@@ -620,6 +621,12 @@ impl OpenCADStudio {
crate::ui::window::import_dialogs::view_import_file(state, recent, flow)
})
}
super::super::ModalKind::TdsImport => {
let state = self.import_dialogs.tds.as_ref()?;
sized_flow(ex, 860, 560, |flow| {
crate::ui::window::import_dialogs::view_tds_import(state, flow)
})
}
super::super::ModalKind::DgnImport => {
let state = self.import_dialogs.dgn.as_ref()?;
sized_flow(ex, 900, 680, |flow| {
+2
View File
@@ -2333,6 +2333,8 @@ pub enum CmdResult {
ReturnPoint(DVec3),
/// Import a DGN model (DGNIMPORT); ends the command.
DgnImport(crate::modules::insert::dgn_import::DgnImportRequest),
/// Import a 3D Studio file with every question answered; ends the command.
TdsImport(crate::modules::insert::tds_import::TdsImportRequest),
}
/// What kind of value the active command is currently asking for. Drives
+205
View File
@@ -0,0 +1,205 @@
//! Assembles a kernel B-rep from the topology an exchange file spells out:
//! vertices, edges along their curves, faces bounded by loops of those
//! edges, shells of faces. The STEP and IGES readers share it.
//!
//! Spline curves and surfaces that are exactly lines, circles, planes,
//! spheres, cylinders, cones or tori are kept as those shapes: many systems write
//! every one of them as a spline.
use std::f64::consts::TAU;
use kernel::brep::{
Body, Coedge, Curve3, Edge, EdgeKey, Face, Loop, Lump, Provenance, Shell, Surface, Vertex,
VertexKey,
};
use kernel::space::Vec3;
/// A face as the file gives it: its surface, whether its outward normal
/// agrees with the surface's, and its loops — the outer one first — as
/// edges with the sense each is run in.
pub struct FaceSpec {
pub surface: Surface,
pub forward: bool,
pub loops: Vec<Vec<(EdgeKey, bool)>>,
}
pub struct Builder {
pub body: Body,
}
/// Whether a curve repeats, and over how long a parameter run.
fn period(curve: &Curve3) -> Option<f64> {
match curve {
Curve3::Circle(_) | Curve3::Ellipse(_) => Some(TAU),
Curve3::Nurbs(nurbs) if nurbs.periodicity() => {
let (from, to) = nurbs.domain();
Some(to - from)
}
_ => None,
}
}
/// The parameter of a point on (or next to) a curve.
fn parameter(curve: &Curve3, point: [f64; 3]) -> Option<f64> {
Some(match curve {
Curve3::Line(line) => {
let direction = Vec3::from(line.direction);
(Vec3::from(point) - Vec3::from(line.origin)).dot(direction)
/ direction.length_squared().max(f64::MIN_POSITIVE)
}
Curve3::Circle(circle) => {
let [x, y] = circle.plane.project(point)?;
y.atan2(x).rem_euclid(TAU)
}
Curve3::Ellipse(ellipse) => {
let [x, y] = ellipse.plane.project(point)?;
(y / ellipse.minor_radius)
.atan2(x / ellipse.major_radius)
.rem_euclid(TAU)
}
Curve3::Nurbs(nurbs) => nurbs.parameter_at(point),
Curve3::PlanarSpline { .. } => return None,
})
}
/// The same curve run the other way.
fn reversed(curve: Curve3) -> Option<Curve3> {
Some(match curve {
Curve3::Line(mut line) => {
line.direction = (-Vec3::from(line.direction)).to_array();
Curve3::Line(line)
}
Curve3::Nurbs(nurbs) => Curve3::Nurbs(nurbs.reversed()?),
_ => return None,
})
}
impl Builder {
pub fn new() -> Self {
Self { body: Body::new() }
}
pub fn vertex(&mut self, point: [f64; 3]) -> VertexKey {
self.body.vertices.insert(Vertex {
point,
provenance: Provenance::Synthesized,
})
}
fn point(&self, vertex: VertexKey) -> Option<[f64; 3]> {
self.body.vertices.get(vertex).map(|v| v.point)
}
/// An edge along `curve` from `start` to `end`, which the curve runs
/// through in that order. A curve that turns out to run the other way
/// (or an open one handed its ends swapped) is reversed to match.
pub fn edge(&mut self, curve: Curve3, start: VertexKey, end: VertexKey) -> Option<EdgeKey> {
let (a, b) = (self.point(start)?, self.point(end)?);
let mut curve = match curve {
Curve3::Nurbs(nurbs) => kernel::brep::analytic_curve(&nurbs).unwrap_or(Curve3::Nurbs(nurbs)),
other => other,
};
let mut t0 = parameter(&curve, a)?;
let mut t1 = parameter(&curve, b)?;
match period(&curve) {
Some(period) => {
if let Curve3::Nurbs(nurbs) = &curve {
let (from, _) = nurbs.domain();
if start == end {
t0 = from;
}
}
if start == end {
t1 = t0 + period;
} else {
while t1 <= t0 + 1e-12 {
t1 += period;
}
}
}
None => {
if start == end {
// A clamped curve closing on itself: its whole domain.
if let Curve3::Nurbs(nurbs) = &curve {
(t0, t1) = nurbs.domain();
}
} else if t1 < t0 {
curve = reversed(curve)?;
t0 = parameter(&curve, a)?;
t1 = parameter(&curve, b)?;
}
}
}
if !(t1 > t0) {
return None;
}
let curve = self.body.curves.insert(curve);
Some(self.body.edges.insert(Edge {
curve,
start_parameter: t0,
end_parameter: t1,
start,
end,
coedges: Vec::new(),
provenance: Provenance::Synthesized,
}))
}
/// A lump of shells — the outer one first, then voids — each a list of
/// faces. `None` when a face has no surface or an edge has gone.
pub fn lump(&mut self, shells: Vec<Vec<FaceSpec>>) -> Option<()> {
let lump = self.body.lumps.insert(Lump {
shells: Vec::new(),
provenance: Provenance::Synthesized,
});
for faces in shells {
let shell = self.body.shells.insert(Shell {
faces: Vec::new(),
owner: lump,
provenance: Provenance::Synthesized,
});
for spec in faces {
let (surface, forward) = match spec.surface {
Surface::Nurbs(nurbs) => match kernel::brep::analytic_surface(&nurbs) {
Some((analytic, agrees)) => (analytic, spec.forward == agrees),
None => (Surface::Nurbs(nurbs), spec.forward),
},
other => (other, spec.forward),
};
let surface = self.body.surfaces.insert(surface);
let face = self.body.faces.insert(Face {
surface,
forward,
loops: Vec::new(),
owner: shell,
provenance: Provenance::Synthesized,
});
for ring in spec.loops {
let key = self.body.loops.insert(Loop {
coedges: Vec::new(),
owner: face,
provenance: Provenance::Synthesized,
});
let mut coedges = Vec::with_capacity(ring.len());
for (edge, forward) in ring {
let coedge = self.body.coedges.insert(Coedge {
edge,
forward,
pcurve: None,
owner: key,
provenance: Provenance::Synthesized,
});
self.body.edges.get_mut(edge)?.coedges.push(coedge);
coedges.push(coedge);
}
self.body.loops.get_mut(key)?.coedges = coedges;
self.body.faces.get_mut(face)?.loops.push(key);
}
self.body.shells.get_mut(shell)?.faces.push(face);
}
self.body.lumps.get_mut(lump)?.shells.push(shell);
}
self.body.roots.push(lump);
Some(())
}
}
+662
View File
@@ -0,0 +1,662 @@
//! IGES reading: the manifold solids (type 186) of a file, their shells,
//! faces, loops and edges (514/510/508/504/502), and its trimmed and bounded
//! surfaces (144/142 and 143/141), over spline surfaces and curves
//! (128/126), lines and arcs (110/100) and composite curves (102), as
//! kernel bodies.
use std::collections::HashMap;
use kernel::brep::{Circle3, Curve3, EdgeKey, Line3, Surface, VertexKey};
use kernel::space::{NurbsCurve3, NurbsSurface3, Plane};
use super::brep_build::{Builder, FaceSpec};
/// One parameter: a number, or a Hollerith string.
#[derive(Debug, Clone)]
enum P {
Num(f64),
Str(String),
}
impl P {
fn num(&self) -> f64 {
match self {
P::Num(v) => *v,
P::Str(_) => 0.0,
}
}
}
/// Splits a section's text into parameters at `delimiter`, up to the first
/// `terminator`, reading `nH…` strings whole.
fn parameters(text: &str, delimiter: char, terminator: char) -> Vec<P> {
let chars: Vec<char> = text.chars().collect();
let mut out = Vec::new();
let mut i = 0;
loop {
while chars.get(i).is_some_and(|c| *c == ' ') {
i += 1;
}
let start = i;
while chars.get(i).is_some_and(|c| c.is_ascii_digit()) {
i += 1;
}
if i > start && matches!(chars.get(i), Some('H' | 'h')) {
let count: usize = chars[start..i].iter().collect::<String>().parse().unwrap_or(0);
let body: String = chars.iter().skip(i + 1).take(count).collect();
i += 1 + count;
out.push(P::Str(body));
} else {
i = start;
while chars
.get(i)
.is_some_and(|c| *c != delimiter && *c != terminator)
{
i += 1;
}
let raw: String = chars[start..i].iter().collect::<String>().replace(['D', 'd'], "E");
out.push(P::Num(raw.trim().parse().unwrap_or(0.0)));
}
while chars.get(i).is_some_and(|c| *c == ' ') {
i += 1;
}
match chars.get(i) {
Some(c) if *c == delimiter => i += 1,
_ => return out,
}
}
}
/// A directory entry and its parameters.
struct Entity {
kind: i32,
/// Pointer to a transformation matrix entity, or zero.
transform: usize,
/// Colour number, or a negated pointer to a colour definition.
color: i64,
params: Vec<P>,
}
struct Doc {
/// Keyed by the entry's first directory line number.
entities: HashMap<usize, Entity>,
/// File units to drawing units.
scale: f64,
/// Points closer than this are one point, in drawing units.
resolution: f64,
}
/// A 3×4 matrix applied as `R·p + T`.
type Matrix = [[f64; 4]; 3];
impl Doc {
fn get(&self, pointer: f64) -> Option<&Entity> {
self.entities.get(&(pointer.abs() as usize))
}
/// An entry's colour: a numbered one, or a definition's RGB percentages
/// — as the nearest standard index colour when it is one exactly.
fn color(&self, number: i64) -> codec::types::Color {
use codec::types::Color;
let rgb = match number {
1 => [0, 0, 0],
2 => [255, 0, 0],
3 => [0, 255, 0],
4 => [0, 0, 255],
5 => [255, 255, 0],
6 => [255, 0, 255],
7 => [0, 255, 255],
8 => [255, 255, 255],
n if n < 0 => match self.entities.get(&(-n as usize)).filter(|e| e.kind == 314) {
Some(e) => [1, 2, 3].map(|k| {
(e.params.get(k).map_or(0.0, P::num) * 2.55).round().clamp(0.0, 255.0) as u8
}),
None => return Color::ByLayer,
},
_ => return Color::ByLayer,
};
match rgb {
[255, 0, 0] => Color::Index(1),
[255, 255, 0] => Color::Index(2),
[0, 255, 0] => Color::Index(3),
[0, 255, 255] => Color::Index(4),
[0, 0, 255] => Color::Index(5),
[255, 0, 255] => Color::Index(6),
[255, 255, 255] => Color::Index(7),
[r, g, b] => Color::Rgb { r, g, b },
}
}
fn matrix(&self, pointer: usize) -> Option<Matrix> {
let entity = self.entities.get(&pointer).filter(|e| e.kind == 124)?;
let v = |k: usize| entity.params.get(k).map_or(0.0, P::num);
let mut m = [[v(1), v(2), v(3), v(4)], [v(5), v(6), v(7), v(8)], [v(9), v(10), v(11), v(12)]];
// Matrices chain through their own transformation pointer.
if let Some(outer) = (entity.transform != 0).then(|| self.matrix(entity.transform)).flatten() {
let mut product = [[0.0; 4]; 3];
for r in 0..3 {
for c in 0..4 {
product[r][c] = (0..3).map(|k| outer[r][k] * m[k][c]).sum::<f64>()
+ if c == 3 { outer[r][3] } else { 0.0 };
}
}
m = product;
}
Some(m)
}
/// `entity`'s placement applied to a point it defines.
fn place(&self, entity: &Entity) -> impl Fn([f64; 3]) -> [f64; 3] {
let m = (entity.transform != 0).then(|| self.matrix(entity.transform)).flatten();
let scale = self.scale;
move |p| {
let p = match m {
Some(m) => [0, 1, 2].map(|r| m[r][0] * p[0] + m[r][1] * p[1] + m[r][2] * p[2] + m[r][3]),
None => p,
};
p.map(|c| c * scale)
}
}
fn curve(&self, pointer: f64) -> Option<Curve3> {
let entity = self.get(pointer)?;
let p = &entity.params;
let v = |k: usize| p.get(k).map_or(0.0, P::num);
let place = self.place(entity);
Some(match entity.kind {
110 => {
let a = place([v(1), v(2), v(3)]);
let b = place([v(4), v(5), v(6)]);
Curve3::Line(Line3 {
origin: a,
direction: [b[0] - a[0], b[1] - a[1], b[2] - a[2]],
})
}
100 => {
let centre = place([v(2), v(3), v(1)]);
let x = place([v(2) + 1.0, v(3), v(1)]);
let y = place([v(2), v(3) + 1.0, v(1)]);
let start = place([v(4), v(5), v(1)]);
let radius = (0..3).map(|k| (start[k] - centre[k]).powi(2)).sum::<f64>().sqrt();
Curve3::Circle(Circle3 {
plane: Plane::orthonormal(
centre,
[x[0] - centre[0], x[1] - centre[1], x[2] - centre[2]],
{
let (a, b) = (
[x[0] - centre[0], x[1] - centre[1], x[2] - centre[2]],
[y[0] - centre[0], y[1] - centre[1], y[2] - centre[2]],
);
[a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]]
},
)?,
radius,
})
}
126 => {
let k = v(1) as usize;
let degree = v(2) as usize;
let knots = (0..k + degree + 2).map(|n| v(7 + n)).collect();
let w0 = 7 + k + degree + 2;
let weights = (0..=k).map(|n| v(w0 + n)).collect();
let c0 = w0 + k + 1;
let points = (0..=k)
.map(|n| place([v(c0 + 3 * n), v(c0 + 3 * n + 1), v(c0 + 3 * n + 2)]))
.collect();
Curve3::Nurbs(NurbsCurve3::new(degree, points, knots, Some(weights))?)
}
_ => return None,
})
}
/// A boundary curve as its pieces — each a curve and the points it runs
/// from and to — composite curves taken apart.
fn pieces(&self, pointer: f64) -> Option<Vec<(Curve3, [f64; 3], [f64; 3])>> {
let entity = self.get(pointer)?;
if entity.kind == 102 {
let count = entity.params.get(1).map_or(0.0, P::num) as usize;
let mut out = Vec::new();
for k in 0..count {
out.extend(self.pieces(entity.params.get(2 + k)?.num())?);
}
return Some(out);
}
let curve = self.curve(pointer)?;
let v = |k: usize| entity.params.get(k).map_or(0.0, P::num);
let place = self.place(entity);
let (from, to) = match (&curve, entity.kind) {
(_, 110) => (place([v(1), v(2), v(3)]), place([v(4), v(5), v(6)])),
(_, 100) => (place([v(4), v(5), v(1)]), place([v(6), v(7), v(1)])),
(Curve3::Nurbs(nurbs), _) => {
let (t0, t1) = nurbs.domain();
(nurbs.point_at_knot(t0), nurbs.point_at_knot(t1))
}
_ => return None,
};
Some(vec![(curve, from, to)])
}
/// The model-space pieces of a curve on a surface (142) or a boundary
/// (141), each of the latter's curves in the sense it is run.
fn boundary(&self, pointer: f64) -> Option<Vec<(Curve3, [f64; 3], [f64; 3])>> {
let entity = self.get(pointer)?;
let v = |k: usize| entity.params.get(k).map_or(0.0, P::num);
match entity.kind {
142 => self.pieces(v(4)),
141 => {
let mut out = Vec::new();
let mut at = 5;
for _ in 0..v(4) as usize {
let mut pieces = self.pieces(v(at))?;
if v(at + 1) == 2.0 {
pieces.reverse();
for piece in &mut pieces {
std::mem::swap(&mut piece.1, &mut piece.2);
}
}
out.extend(pieces);
at += 3 + v(at + 2) as usize;
}
Some(out)
}
_ => self.pieces(pointer),
}
}
fn surface(&self, pointer: f64) -> Option<Surface> {
let entity = self.get(pointer)?;
if entity.kind != 128 {
return None;
}
let v = |k: usize| entity.params.get(k).map_or(0.0, P::num);
let place = self.place(entity);
let (k1, k2, m1, m2) = (v(1) as usize, v(2) as usize, v(3) as usize, v(4) as usize);
let s0 = 10;
let t0 = s0 + k1 + m1 + 2;
let w0 = t0 + k2 + m2 + 2;
let c0 = w0 + (k1 + 1) * (k2 + 1);
let u_knots = (s0..t0).map(v).collect();
let v_knots = (t0..w0).map(v).collect();
// Points run with the first index fastest.
let at = |i: usize, j: usize| j * (k1 + 1) + i;
let weights = (0..=k1)
.map(|i| (0..=k2).map(|j| v(w0 + at(i, j))).collect())
.collect();
let points = (0..=k1)
.map(|i| {
(0..=k2)
.map(|j| {
let n = c0 + 3 * at(i, j);
place([v(n), v(n + 1), v(n + 2)])
})
.collect()
})
.collect();
NurbsSurface3::new(m1, m2, points, u_knots, v_knots, Some(weights)).map(Surface::Nurbs)
}
}
struct Assembly<'a> {
doc: &'a Doc,
build: Builder,
vertices: HashMap<(usize, usize), VertexKey>,
edges: HashMap<(usize, usize), EdgeKey>,
/// Vertices made where boundary curves meet, by position.
corners: Vec<([f64; 3], VertexKey)>,
}
fn distance(a: [f64; 3], b: [f64; 3]) -> f64 {
(0..3).map(|k| (a[k] - b[k]).powi(2)).sum::<f64>().sqrt()
}
impl Assembly<'_> {
fn vertex(&mut self, list: f64, index: f64) -> Option<VertexKey> {
let key = (list.abs() as usize, index as usize);
if let Some(&v) = self.vertices.get(&key) {
return Some(v);
}
let entity = self.doc.get(list).filter(|e| e.kind == 502)?;
let n = 2 + 3 * (key.1.checked_sub(1)?);
let p = |k: usize| entity.params.get(k).map(P::num);
let point = self.doc.place(entity)([p(n)?, p(n + 1)?, p(n + 2)?]);
let v = self.build.vertex(point);
self.vertices.insert(key, v);
Some(v)
}
fn edge(&mut self, list: f64, index: f64) -> Option<EdgeKey> {
let key = (list.abs() as usize, index as usize);
if let Some(&e) = self.edges.get(&key) {
return Some(e);
}
let entity = self.doc.get(list).filter(|e| e.kind == 504)?;
let n = 2 + 5 * key.1.checked_sub(1)?;
let p = |k: usize| entity.params.get(k).map(P::num);
let curve = self.doc.curve(p(n)?)?;
let start = self.vertex(p(n + 1)?, p(n + 2)?)?;
let end = self.vertex(p(n + 3)?, p(n + 4)?)?;
let e = self.build.edge(curve, start, end)?;
self.edges.insert(key, e);
Some(e)
}
/// The vertex at a point, shared with one already there.
fn corner(&mut self, point: [f64; 3]) -> VertexKey {
let tolerance = self.doc.resolution;
if let Some((_, v)) = self.corners.iter().find(|(p, _)| distance(*p, point) <= tolerance) {
return *v;
}
let v = self.build.vertex(point);
self.corners.push((point, v));
v
}
/// A loop along curve pieces, in their order.
fn curve_ring(&mut self, pieces: Vec<(Curve3, [f64; 3], [f64; 3])>) -> Option<Vec<(EdgeKey, bool)>> {
let mut ring = Vec::new();
for (curve, from, to) in pieces {
if distance(from, to) <= self.doc.resolution && matches!(curve, Curve3::Line(_)) {
continue;
}
let (a, b) = (self.corner(from), self.corner(to));
ring.push((self.build.edge(curve, a, b)?, true));
}
(!ring.is_empty()).then_some(ring)
}
/// A loop round the edge of a spline surface's parameter domain; sides
/// that close up to a point (a pole) are left out.
fn domain_ring(&mut self, surface: &NurbsSurface3) -> Option<Vec<(EdgeKey, bool)>> {
let ((u0, u1), (v0, v1)) = surface.domain();
let corners = [(u0, v0), (u1, v0), (u1, v1), (u0, v1)];
let sides = [(1, v0), (0, u1), (1, v1), (0, u0)];
let mut pieces = Vec::new();
for (k, (axis, at)) in sides.into_iter().enumerate() {
let (a, b) = (corners[k], corners[(k + 1) % 4]);
let (from, to) = (surface.point_at_knot(a.0, a.1), surface.point_at_knot(b.0, b.1));
let middle = surface.point_at_knot(0.5 * (a.0 + b.0), 0.5 * (a.1 + b.1));
if distance(from, middle) <= self.doc.resolution && distance(to, middle) <= self.doc.resolution {
continue;
}
pieces.push((Curve3::Nurbs(surface.isocurve(axis, at)?), from, to));
}
self.curve_ring(pieces)
}
/// Turns a loop to run counter-clockwise round the surface's normal (an
/// outer one) or clockwise (a hole), judged by the area it encloses in
/// the surface's parameters.
fn orient(&self, surface: &Surface, ring: &mut [(EdgeKey, bool)], outer: bool) {
let mut uv = Vec::new();
for (edge, forward) in ring.iter() {
let Some(edge) = self.build.body.edges.get(*edge) else { return };
let Some(curve) = self.build.body.curves.get(edge.curve) else { return };
let (t0, t1) = (edge.start_parameter, edge.end_parameter);
for k in 0..8 {
let s = k as f64 / 8.0;
let s = if *forward { s } else { 1.0 - s };
if let Some(p) = surface.parameters_at(curve.point_at(t0 + (t1 - t0) * s)) {
uv.push(p);
}
}
}
let area: f64 = (0..uv.len())
.map(|k| {
let (a, b) = (uv[k], uv[(k + 1) % uv.len()]);
a.0 * b.1 - b.0 * a.1
})
.sum();
if (area > 0.0) != outer {
ring.reverse();
for (_, forward) in ring.iter_mut() {
*forward = !*forward;
}
}
}
/// A trimmed (144) or bounded (143) surface as a one-face sheet.
fn sheet(&mut self, entity: &Entity) -> Option<()> {
let v = |k: usize| entity.params.get(k).map_or(0.0, P::num);
let (surface_at, outer, holes): (f64, Option<f64>, Vec<f64>) = match entity.kind {
144 => (
v(1),
(v(2) != 0.0).then(|| v(4)),
(0..v(3) as usize).map(|k| v(5 + k)).collect(),
),
143 => {
let count = v(3) as usize;
(v(2), (count > 0).then(|| v(4)), (1..count).map(|k| v(4 + k)).collect())
}
_ => return None,
};
let Surface::Nurbs(nurbs) = self.doc.surface(surface_at)? else { return None };
let surface = Surface::Nurbs(nurbs.clone());
let mut first = match outer {
Some(boundary) => {
let pieces = self.doc.boundary(boundary)?;
self.curve_ring(pieces)?
}
None => self.domain_ring(&nurbs)?,
};
self.orient(&surface, &mut first, true);
let mut loops = vec![first];
for hole in holes {
let pieces = self.doc.boundary(hole)?;
let mut ring = self.curve_ring(pieces)?;
self.orient(&surface, &mut ring, false);
loops.push(ring);
}
self.build.lump(vec![vec![FaceSpec {
surface,
forward: true,
loops,
}]])
}
fn ring(&mut self, pointer: f64) -> Option<Vec<(EdgeKey, bool)>> {
let entity = self.doc.get(pointer).filter(|e| e.kind == 508)?;
let p = |k: usize| entity.params.get(k).map(P::num);
let mut ring = Vec::new();
let mut at = 2;
for _ in 0..p(1)? as usize {
let (kind, list, index, agrees, pcurves) = (p(at)?, p(at + 1)?, p(at + 2)?, p(at + 3)?, p(at + 4)?);
if kind == 0.0 {
ring.push((self.edge(list, index)?, agrees != 0.0));
}
at += 5 + 2 * pcurves as usize;
}
Some(ring)
}
fn face(&mut self, pointer: f64, agrees: bool) -> Option<FaceSpec> {
let entity = self.doc.get(pointer).filter(|e| e.kind == 510)?;
let p = |k: usize| entity.params.get(k).map(P::num);
let surface = self.doc.surface(p(1)?)?;
let loops = (0..p(2)? as usize)
.map(|n| self.ring(p(4 + n)?))
.collect::<Option<Vec<_>>>()?;
Some(FaceSpec {
surface,
forward: agrees,
loops,
})
}
fn shell(&mut self, pointer: f64, agrees: bool) -> Option<Vec<FaceSpec>> {
let entity = self.doc.get(pointer).filter(|e| e.kind == 514)?;
let p = |k: usize| entity.params.get(k).map(P::num);
(0..p(1)? as usize)
.map(|n| {
let face_agrees = p(3 + 2 * n)? != 0.0;
let mut face = self.face(p(2 + 2 * n)?, face_agrees == agrees)?;
if !agrees {
for ring in &mut face.loops {
ring.reverse();
for (_, f) in ring.iter_mut() {
*f = !*f;
}
}
}
Some(face)
})
.collect()
}
}
/// What an IGES file holds.
pub struct IgesModel {
/// Each solid, scaled to the drawing, with its colour.
pub bodies: Vec<(kernel::brep::Body, codec::types::Color)>,
/// Each trimmed or bounded surface, a one-face sheet, with its colour.
pub sheets: Vec<(kernel::brep::Body, codec::types::Color)>,
}
/// `drawing_mm`: millimetres per drawing unit, `None` for a unitless drawing.
pub fn read(bytes: &[u8], drawing_mm: Option<f64>) -> Option<IgesModel> {
let text = String::from_utf8_lossy(bytes);
let mut sections: HashMap<char, Vec<&str>> = HashMap::new();
for line in text.lines() {
let line = line.trim_end_matches('\r');
if line.len() < 73 {
continue;
}
let Some(section) = line.get(72..73).and_then(|s| s.chars().next()) else { continue };
sections.entry(section).or_default().push(line);
}
let directory = sections.get(&'D')?;
let global: String = sections
.get(&'G')
.map(|lines| lines.iter().filter_map(|l| l.get(..72)).collect())
.unwrap_or_default();
// The delimiters are themselves the first two parameters, when given.
let mut delimiter = ',';
let mut terminator = ';';
if global.starts_with("1H") {
delimiter = global.chars().nth(2).unwrap_or(',');
let rest = global.get(4..).unwrap_or_default();
if rest.starts_with("1H") {
terminator = rest.chars().nth(2).unwrap_or(';');
}
}
let globals = parameters(&global, delimiter, terminator);
let unit_mm = match globals.get(13).map(P::num).unwrap_or(1.0) as i32 {
1 => 25.4,
4 => 304.8,
5 => 1_609_344.0,
6 => 1000.0,
7 => 1_000_000.0,
8 => 0.0254,
9 => 0.001,
10 => 10.0,
11 => 0.000_025_4,
3 => match globals.get(14) {
Some(P::Str(name)) if name.eq_ignore_ascii_case("IN") || name.eq_ignore_ascii_case("INCH") => 25.4,
Some(P::Str(name)) if name.eq_ignore_ascii_case("FT") => 304.8,
Some(P::Str(name)) if name.eq_ignore_ascii_case("M") => 1000.0,
Some(P::Str(name)) if name.eq_ignore_ascii_case("CM") => 10.0,
_ => 1.0,
},
_ => 1.0,
} * globals.get(12).map(P::num).filter(|s| *s > 0.0).map_or(1.0, |s| 1.0 / s);
let parameter_lines: HashMap<usize, &str> = sections
.get(&'P')
.map(|lines| {
lines
.iter()
.filter_map(|l| Some((l.get(73..)?.trim().parse().ok()?, *l)))
.collect()
})
.unwrap_or_default();
let field = |line: &str, n: usize| -> i64 {
line.get(n * 8..n * 8 + 8)
.and_then(|f| f.trim().parse().ok())
.unwrap_or(0)
};
let mut entities = HashMap::new();
for pair in directory.chunks(2) {
let [first, second] = pair else { continue };
let Some(number) = first.get(73..).and_then(|n| n.trim().parse::<usize>().ok()) else {
continue;
};
let start = field(first, 1) as usize;
let count = field(second, 3).max(1) as usize;
let data: String = (start..start + count)
.filter_map(|n| parameter_lines.get(&n))
.filter_map(|l| l.get(..64))
.collect();
entities.insert(
number,
Entity {
kind: field(first, 0) as i32,
transform: field(first, 6).max(0) as usize,
color: field(second, 2),
params: parameters(&data, delimiter, terminator),
},
);
}
let scale = drawing_mm.filter(|mm| *mm > 0.0).map_or(1.0, |mm| unit_mm / mm);
let resolution = globals.get(18).map(P::num).filter(|r| *r > 0.0).unwrap_or(1e-6) * scale;
let doc = Doc {
entities,
scale,
resolution,
};
let mut solids: Vec<usize> = doc
.entities
.iter()
.filter(|(_, e)| e.kind == 186)
.map(|(n, _)| *n)
.collect();
solids.sort_unstable();
let mut bodies = Vec::new();
for number in solids {
let entity = &doc.entities[&number];
let v = |k: usize| entity.params.get(k).map(P::num);
let Some((shell, agrees)) = v(1).zip(v(2)) else { continue };
let mut assembly = Assembly {
doc: &doc,
build: Builder::new(),
vertices: HashMap::new(),
edges: HashMap::new(),
corners: Vec::new(),
};
let mut shells = Vec::new();
let outer = assembly.shell(shell, agrees != 0.0);
let voids = (0..v(3).unwrap_or(0.0) as usize)
.map(|n| assembly.shell(v(4 + 2 * n)?, v(5 + 2 * n)? != 0.0))
.collect::<Option<Vec<_>>>();
if let (Some(outer), Some(voids)) = (outer, voids) {
shells.push(outer);
shells.extend(voids);
if assembly.build.lump(shells).is_some() {
bodies.push((assembly.build.body, doc.color(entity.color)));
}
}
}
// The solids come in last first, as the reference reader places them.
bodies.reverse();
let mut numbers: Vec<usize> = doc
.entities
.iter()
.filter(|(_, e)| matches!(e.kind, 143 | 144))
.map(|(n, _)| *n)
.collect();
numbers.sort_unstable();
let mut sheets = Vec::new();
for number in numbers {
let entity = &doc.entities[&number];
let mut assembly = Assembly {
doc: &doc,
build: Builder::new(),
vertices: HashMap::new(),
edges: HashMap::new(),
corners: Vec::new(),
};
if assembly.sheet(entity).is_some() {
sheets.push((assembly.build.body, doc.color(entity.color)));
}
}
Some(IgesModel { bodies, sheets })
}
+6
View File
@@ -8,12 +8,15 @@ pub mod edit_lock;
// Same split as web_session/web_autosave: the save-routing decision (and
// its tests) is pure and compiles everywhere; the showSaveFilePicker half
// inside is wasm-only.
pub mod brep_build;
pub mod fbx;
pub mod file_association;
pub mod font_repo;
pub(crate) mod fs_access;
pub mod iges_import;
pub mod line_read;
pub mod linetypes;
pub mod model_import;
pub mod obj;
pub mod ole_embed;
pub mod paper_catalog;
@@ -27,11 +30,14 @@ pub mod recovery;
#[cfg(not(target_arch = "wasm32"))]
pub mod single_instance;
pub mod step;
pub mod step_import;
pub mod stl;
pub mod svg_export;
pub mod tds_import;
pub mod thumbnail;
pub mod update_check;
pub mod visual_styles;
pub mod wmf_import;
#[cfg(target_arch = "wasm32")]
pub(crate) mod web_recent;
// Registered on every target so the pure helpers (and their tests) compile on
+204
View File
@@ -0,0 +1,204 @@
//! Model files IMPORT reads: ACIS text (SAT), STEP and IGES, as the drawing
//! objects they become.
use codec::entities::{Entity as _, Insert};
use codec::types::{Color, Matrix4, Transform, Vector3};
use codec::EntityType;
use crate::scene::convert::acis_import::{painted_body_entity, sat_entities};
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ModelFormat {
Sat,
Step,
Iges,
}
/// The objects a file brings in.
pub struct Imported {
/// Block definitions, each before any block that inserts it.
pub blocks: Vec<(String, Vec<EntityType>)>,
/// The objects for the current space.
pub entities: Vec<EntityType>,
}
/// File units over drawing units; one where the drawing is unitless.
fn ratio(file_mm: f64, drawing_mm: Option<f64>) -> f64 {
drawing_mm.filter(|mm| *mm > 0.0).map_or(1.0, |mm| file_mm / mm)
}
/// A block name from a product's, with the characters names cannot hold
/// replaced.
fn block_name(name: &str) -> String {
let name: String = name
.trim()
.chars()
.map(|c| if "<>/\\\":;?*|,=`".contains(c) { '_' } else { c })
.collect();
if name.is_empty() { "Part".to_string() } else { name }
}
/// A STEP presentation colour as the drawing colour it imports as: the
/// standard index colour it is close to — red, yellow, green, cyan, blue,
/// magenta, white, or the dark grey 250 (which black also becomes) — and
/// otherwise the true colour.
// ponytail: the closeness bands are fitted to measured imports (saturation
// at least 0.75, value at least 0.825 and hue within 7.5 degrees for the six
// hues; greys from 0.16 to 0.39 for 250 and from 0.935 for white); refit
// them if a colour on a band edge comes out differently.
pub fn step_colour(rgb: crate::io::step_import::Rgb) -> Color {
let [r, g, b] = rgb.map(|c| c.clamp(0.0, 1.0));
let true_colour = Color::Rgb {
r: (r * 255.0).round() as u8,
g: (g * 255.0).round() as u8,
b: (b * 255.0).round() as u8,
};
let max = r.max(g).max(b);
let min = r.min(g).min(b);
if max == 0.0 {
return Color::Index(250);
}
let saturation = (max - min) / max;
if saturation <= 0.1 {
return if max >= 0.935 {
Color::Index(7)
} else if (0.16..0.395).contains(&max) {
Color::Index(250)
} else {
true_colour
};
}
if saturation < 0.75 || max < 0.825 {
return true_colour;
}
let delta = max - min;
let hue = if max == r {
60.0 * ((g - b) / delta).rem_euclid(6.0)
} else if max == g {
60.0 * ((b - r) / delta + 2.0)
} else {
60.0 * ((r - g) / delta + 4.0)
};
let sector = (hue / 60.0).round();
if (hue - 60.0 * sector).abs() > 7.5 {
return true_colour;
}
// Red, yellow, green, cyan, blue, magenta.
Color::Index([1, 2, 3, 4, 5, 6][sector as usize % 6])
}
/// An insert of `block` placed by `placement` (columns: axes, origin).
fn placed_insert(block: &str, placement: &[[f64; 4]; 3]) -> EntityType {
let mut insert = Insert::new(block, Vector3::ZERO);
let mut m = Matrix4::identity();
for r in 0..3 {
m.m[r] = placement[r];
}
insert.apply_transform(&Transform::from_matrix(m));
EntityType::Insert(insert)
}
/// STEP: a block per product — its solids, and inserts of its components —
/// with each top product inserted at the origin, scaled from the file's
/// units to the drawing's. The solids take their colour from the block.
fn step_blocks(model: crate::io::step_import::StepModel, scale: f64) -> Imported {
// Unique names, in product order.
let mut names: Vec<String> = Vec::new();
for product in &model.products {
let base = block_name(&product.name);
let mut name = base.clone();
let mut n = 1;
while names.iter().any(|taken| taken.eq_ignore_ascii_case(&name)) {
name = format!("{base}_{n}");
n += 1;
}
names.push(name);
}
// Children before parents.
let mut order = Vec::new();
let mut state = vec![0u8; model.products.len()];
fn visit(k: usize, model: &crate::io::step_import::StepModel, state: &mut [u8], order: &mut Vec<usize>) {
if state[k] != 0 {
return;
}
state[k] = 1;
for (child, _) in &model.products[k].children {
visit(*child, model, state, order);
}
state[k] = 2;
order.push(k);
}
for &root in &model.roots {
visit(root, &model, &mut state, &mut order);
}
let blocks = order
.iter()
.map(|&k| {
let product = &model.products[k];
let mut entities: Vec<EntityType> = product
.bodies
.iter()
.filter_map(|body| {
let faces: Vec<Option<Color>> = body.faces.iter().map(|c| c.map(step_colour)).collect();
painted_body_entity(&body.body, body.colour.map(step_colour), &faces, false)
})
.collect();
entities.extend(
product
.children
.iter()
.map(|(child, placement)| {
let mut insert = placed_insert(&names[*child], placement);
insert.common_mut().color = Color::ByBlock;
insert
}),
);
(names[k].clone(), entities)
})
.collect();
let identity = [[scale, 0.0, 0.0, 0.0], [0.0, scale, 0.0, 0.0], [0.0, 0.0, scale, 0.0]];
Imported {
blocks,
entities: model
.roots
.iter()
.map(|&k| placed_insert(&names[k], &identity))
.collect(),
}
}
/// `None` when the file is not of `format` or holds nothing it can read.
pub fn read(format: ModelFormat, bytes: &[u8], drawing_mm: Option<f64>) -> Option<Imported> {
let imported = match format {
ModelFormat::Sat => Imported {
blocks: Vec::new(),
entities: sat_entities(&String::from_utf8_lossy(bytes))?,
},
ModelFormat::Step => {
let model = crate::io::step_import::read(bytes)?;
let scale = ratio(model.unit_mm, drawing_mm);
step_blocks(model, scale)
}
ModelFormat::Iges => {
// Solids, then the surfaces as surfaces however flat; faces and
// edges carry the object's colour.
let model = crate::io::iges_import::read(bytes, drawing_mm)?;
let solids = model.bodies.iter().map(|body| (body, false));
let sheets = model.sheets.iter().map(|body| (body, true));
Imported {
blocks: Vec::new(),
entities: solids
.chain(sheets)
.filter_map(|((body, color), sheet)| painted_body_entity(body, Some(*color), &[], sheet))
.collect(),
}
}
};
let solids = imported
.blocks
.iter()
.flat_map(|(_, entities)| entities)
.chain(&imported.entities)
.any(|entity| !matches!(entity, EntityType::Insert(_)));
solids.then_some(imported)
}
+929
View File
@@ -0,0 +1,929 @@
//! STEP (ISO 10303-21) reading: the B-rep solids and shell models of an
//! AP203/AP214/AP242 file, as kernel bodies, with the product's name and the
//! file's length unit.
use std::collections::HashMap;
use kernel::brep::{
Circle3, Cone, Curve3, Cylinder, EdgeKey, Ellipse3, Line3, Sphere, Surface, Torus, VertexKey,
};
use kernel::space::{NurbsCurve3, NurbsSurface3, Plane, Vec3};
use super::brep_build::{Builder, FaceSpec};
/// One parameter of an entity instance.
#[derive(Debug, Clone)]
enum P {
Num(f64),
Str(String),
Enum(String),
Ref(u64),
List(Vec<P>),
Null,
/// A typed value, such as `LENGTH_MEASURE(1.)`.
Typed(Vec<P>),
}
impl P {
fn num(&self) -> Option<f64> {
match self {
P::Num(v) => Some(*v),
P::Typed(inner) => inner.first()?.num(),
_ => None,
}
}
fn reference(&self) -> Option<u64> {
match self {
P::Ref(id) => Some(*id),
_ => None,
}
}
fn list(&self) -> &[P] {
match self {
P::List(items) => items,
_ => &[],
}
}
fn truth(&self) -> bool {
matches!(self, P::Enum(e) if e == "T")
}
fn text(&self) -> Option<&str> {
match self {
P::Str(s) => Some(s),
_ => None,
}
}
}
/// An instance: one `(type, parameters)` part, or several for a complex one.
type Instance = Vec<(String, Vec<P>)>;
struct Cursor<'a> {
s: &'a [u8],
i: usize,
}
impl Cursor<'_> {
fn skip(&mut self) {
loop {
while self.s.get(self.i).is_some_and(|c| c.is_ascii_whitespace()) {
self.i += 1;
}
if self.s[self.i..].starts_with(b"/*") {
match self.s[self.i + 2..].windows(2).position(|w| w == b"*/") {
Some(end) => self.i += end + 4,
None => self.i = self.s.len(),
}
} else {
break;
}
}
}
fn peek(&mut self) -> Option<u8> {
self.skip();
self.s.get(self.i).copied()
}
fn eat(&mut self, c: u8) -> Option<()> {
(self.peek()? == c).then(|| self.i += 1)
}
fn word(&mut self) -> String {
self.skip();
let start = self.i;
while self
.s
.get(self.i)
.is_some_and(|c| c.is_ascii_alphanumeric() || *c == b'_' || *c == b'-')
{
self.i += 1;
}
String::from_utf8_lossy(&self.s[start..self.i]).to_ascii_uppercase()
}
fn param(&mut self) -> Option<P> {
Some(match self.peek()? {
b'#' => {
self.i += 1;
P::Ref(self.word().parse().ok()?)
}
b'\'' => {
self.i += 1;
let mut text = Vec::new();
loop {
let c = *self.s.get(self.i)?;
self.i += 1;
if c == b'\'' {
if self.s.get(self.i) == Some(&b'\'') {
self.i += 1;
} else {
break;
}
}
text.push(c);
}
P::Str(String::from_utf8_lossy(&text).into_owned())
}
b'.' => {
self.i += 1;
let value = self.word();
self.eat(b'.')?;
P::Enum(value)
}
b'$' | b'*' => {
self.i += 1;
P::Null
}
b'(' => P::List(self.params()?),
c if c.is_ascii_digit() || c == b'-' || c == b'+' || c == b'.' => {
let start = self.i;
while self
.s
.get(self.i)
.is_some_and(|c| c.is_ascii_digit() || b"+-.eE".contains(c))
{
self.i += 1;
}
let raw = String::from_utf8_lossy(&self.s[start..self.i]).replace(".E", ".0E");
P::Num(raw.replace(".e", ".0e").parse().ok()?)
}
_ => {
if self.word().is_empty() {
return None;
}
P::Typed(self.params()?)
}
})
}
fn params(&mut self) -> Option<Vec<P>> {
self.eat(b'(')?;
let mut items = Vec::new();
if self.eat(b')').is_some() {
return Some(items);
}
loop {
items.push(self.param()?);
match self.peek()? {
b',' => self.i += 1,
b')' => {
self.i += 1;
return Some(items);
}
_ => return None,
}
}
}
/// `#id = TYPE(...)` or `#id = (A(...) B(...))`, up to its `;`.
fn instance(&mut self) -> Option<(u64, Instance)> {
self.eat(b'#')?;
let id = self.word().parse().ok()?;
self.eat(b'=')?;
let mut parts = Vec::new();
if self.eat(b'(').is_some() {
while self.eat(b')').is_none() {
let name = self.word();
if name.is_empty() {
return None;
}
parts.push((name, self.params()?));
}
} else {
let name = self.word();
parts.push((name, self.params()?));
}
self.eat(b';')?;
Some((id, parts))
}
}
struct Doc {
instances: HashMap<u64, Instance>,
/// Plane-angle unit in radians.
angle: f64,
/// The colour each styled item (a solid, a shell or a face) is shown
/// in, as 0–1 RGB.
styles: HashMap<u64, [f64; 3]>,
}
/// An RGB colour as 0–1 values.
pub type Rgb = [f64; 3];
impl Doc {
/// A presentation colour: an RGB one or a predefined one.
fn colour(&self, p: &P) -> Option<Rgb> {
let (kind, params) = self.simple(p.reference()?)?;
match kind {
"COLOUR_RGB" => Some([params.get(1)?.num()?, params.get(2)?.num()?, params.get(3)?.num()?]),
"DRAUGHTING_PRE_DEFINED_COLOUR" => Some(match params.first()?.text()? {
"red" => [1.0, 0.0, 0.0],
"green" => [0.0, 1.0, 0.0],
"blue" => [0.0, 0.0, 1.0],
"yellow" => [1.0, 1.0, 0.0],
"magenta" => [1.0, 0.0, 1.0],
"cyan" => [0.0, 1.0, 1.0],
"black" => [0.0, 0.0, 0.0],
"white" => [1.0, 1.0, 1.0],
_ => return None,
}),
_ => None,
}
}
/// The colour a styled item's presentation styles give it: its surface
/// fill (or rendering) colour, or failing that its curve colour.
fn style_colour(&self, styles: &P) -> Option<Rgb> {
let mut stack: Vec<&P> = vec![styles];
let mut seen = Vec::new();
let mut curve = None;
while let Some(p) = stack.pop() {
match p {
P::List(items) | P::Typed(items) => stack.extend(items.iter().rev()),
P::Ref(id) if !seen.contains(id) => {
seen.push(*id);
let Some((kind, params)) = self.simple(*id) else { continue };
match kind {
"FILL_AREA_STYLE_COLOUR" => {
if let Some(c) = params.get(1).and_then(|c| self.colour(c)) {
return Some(c);
}
}
"SURFACE_STYLE_RENDERING" | "SURFACE_STYLE_RENDERING_WITH_PROPERTIES" => {
if let Some(c) = params.get(1).and_then(|c| self.colour(c)) {
return Some(c);
}
}
"CURVE_STYLE" => curve = curve.or_else(|| params.get(3).and_then(|c| self.colour(c))),
_ => stack.extend(params.iter().rev()),
}
}
_ => {}
}
}
curve
}
fn parts(&self, id: u64) -> Option<&Instance> {
self.instances.get(&id)
}
fn kind(&self, id: u64) -> &str {
self.parts(id)
.and_then(|parts| parts.first())
.map_or("", |(name, _)| name.as_str())
}
/// The parameters of the part named `name`.
fn part(&self, id: u64, name: &str) -> Option<&[P]> {
self.parts(id)?
.iter()
.find(|(n, _)| n == name)
.map(|(_, p)| p.as_slice())
}
/// A simple instance's type and parameters.
fn simple(&self, id: u64) -> Option<(&str, &[P])> {
let parts = self.parts(id)?;
let (name, params) = parts.first()?;
Some((name.as_str(), params.as_slice()))
}
fn point(&self, p: &P) -> Option<[f64; 3]> {
let (_, params) = self.simple(p.reference()?)?;
let c = params.get(1)?.list();
Some([c.first()?.num()?, c.get(1)?.num()?, c.get(2).and_then(P::num).unwrap_or(0.0)])
}
fn direction(&self, p: &P) -> Option<[f64; 3]> {
self.point(p)
}
fn placement(&self, p: &P) -> Option<Plane> {
let (_, params) = self.simple(p.reference()?)?;
let origin = self.point(params.get(1)?)?;
let z = params.get(2).and_then(|d| self.direction(d)).unwrap_or([0.0, 0.0, 1.0]);
let x = params
.get(3)
.and_then(|d| self.direction(d))
.filter(|x| Vec3::from(*x).cross(Vec3::from(z)).length() > 1e-9)
// Any axis off the normal; the plane squares it up.
.unwrap_or(if z[0].abs() < 0.9 { [1.0, 0.0, 0.0] } else { [0.0, 1.0, 0.0] });
Plane::orthonormal(origin, x, z)
}
/// Knots expanded by their multiplicities.
fn knots(mults: &P, knots: &P) -> Option<Vec<f64>> {
let mut out = Vec::new();
for (m, k) in mults.list().iter().zip(knots.list()) {
for _ in 0..m.num()? as usize {
out.push(k.num()?);
}
}
Some(out)
}
fn curve(&self, p: &P) -> Option<Curve3> {
let id = p.reference()?;
let kind = self.kind(id);
if kind == "B_SPLINE_CURVE_WITH_KNOTS" || self.part(id, "B_SPLINE_CURVE").is_some() {
return self.spline_curve(id).map(Curve3::Nurbs);
}
let (_, params) = self.simple(id)?;
Some(match kind {
"LINE" => {
let origin = self.point(params.get(1)?)?;
let (_, vector) = self.simple(params.get(2)?.reference()?)?;
let direction = Vec3::from(self.direction(vector.get(1)?)?).normalize()?
* vector.get(2)?.num()?;
Curve3::Line(Line3 {
origin,
direction: direction.to_array(),
})
}
"CIRCLE" => Curve3::Circle(Circle3 {
plane: self.placement(params.get(1)?)?,
radius: params.get(2)?.num()?,
}),
"ELLIPSE" => Curve3::Ellipse(Ellipse3 {
plane: self.placement(params.get(1)?)?,
major_radius: params.get(2)?.num()?,
minor_radius: params.get(3)?.num()?,
}),
"SURFACE_CURVE" | "SEAM_CURVE" | "INTERSECTION_CURVE" | "TRIMMED_CURVE" => {
self.curve(params.get(1)?)?
}
"POLYLINE" => {
let points: Option<Vec<_>> =
params.get(1)?.list().iter().map(|q| self.point(q)).collect();
Curve3::Nurbs(NurbsCurve3::new(1, points?, Vec::new(), None)?)
}
_ => return None,
})
}
fn spline_curve(&self, id: u64) -> Option<NurbsCurve3> {
// The simple form carries everything after its name; the complex
// form splits it over parts that have no name.
let (degree, points, mults, knots, weights) =
if let Some(p) = self.part(id, "B_SPLINE_CURVE_WITH_KNOTS").filter(|p| p.len() >= 9) {
(&p[1], &p[2], &p[6], &p[7], None)
} else {
let base = self.part(id, "B_SPLINE_CURVE")?;
let with = self.part(id, "B_SPLINE_CURVE_WITH_KNOTS")?;
let weights = self.part(id, "RATIONAL_B_SPLINE_CURVE").and_then(|w| w.first());
(&base[0], &base[1], &with[0], &with[1], weights)
};
let points: Option<Vec<_>> = points.list().iter().map(|q| self.point(q)).collect();
let weights: Option<Vec<f64>> = weights.map(|w| w.list().iter().filter_map(P::num).collect());
let degree = degree.num()? as usize;
let points = points?;
let knots = Self::knots(mults, knots)?;
match &weights {
Some(w) => NurbsCurve3::new_strict(degree, points.clone(), knots.clone(), w.clone())
.or_else(|| NurbsCurve3::new(degree, points, knots, weights.clone())),
None => NurbsCurve3::new(degree, points, knots, None),
}
}
fn surface(&self, p: &P) -> Option<Surface> {
let id = p.reference()?;
let kind = self.kind(id);
if kind == "B_SPLINE_SURFACE_WITH_KNOTS" || self.part(id, "B_SPLINE_SURFACE").is_some() {
return self.spline_surface(id).map(Surface::Nurbs);
}
let (_, params) = self.simple(id)?;
let frame = self.placement(params.get(1)?)?;
let value = |k: usize| params.get(k).and_then(P::num);
Some(match kind {
"PLANE" => Surface::Plane(frame),
"CYLINDRICAL_SURFACE" => Surface::Cylinder(Cylinder {
base: frame,
radius: value(2)?,
}),
// A STEP cone widens along its axis by its semi-angle.
"CONICAL_SURFACE" => Surface::Cone(Cone {
base: frame,
radius: value(2)?,
half_angle: -value(3)? * self.angle,
}),
"SPHERICAL_SURFACE" => Surface::Sphere(Sphere {
frame,
radius: value(2)?,
}),
"TOROIDAL_SURFACE" => Surface::Torus(Torus {
frame,
major_radius: value(2)?,
minor_radius: value(3)?,
}),
_ => return None,
})
}
fn spline_surface(&self, id: u64) -> Option<NurbsSurface3> {
let (ud, vd, points, um, vm, uk, vk, weights) = if let Some(p) = self
.part(id, "B_SPLINE_SURFACE_WITH_KNOTS")
.filter(|p| p.len() >= 13)
{
(&p[1], &p[2], &p[3], &p[8], &p[9], &p[10], &p[11], None)
} else {
let base = self.part(id, "B_SPLINE_SURFACE")?;
let with = self.part(id, "B_SPLINE_SURFACE_WITH_KNOTS")?;
let weights = self.part(id, "RATIONAL_B_SPLINE_SURFACE").and_then(|w| w.first());
(&base[0], &base[1], &base[2], &with[0], &with[1], &with[2], &with[3], weights)
};
let rows: Option<Vec<Vec<[f64; 3]>>> = points
.list()
.iter()
.map(|row| row.list().iter().map(|q| self.point(q)).collect())
.collect();
let weights: Option<Vec<Vec<f64>>> = weights.map(|w| {
w.list()
.iter()
.map(|row| row.list().iter().filter_map(P::num).collect())
.collect()
});
NurbsSurface3::new(
ud.num()? as usize,
vd.num()? as usize,
rows?,
Self::knots(um, uk)?,
Self::knots(vm, vk)?,
weights,
)
}
}
/// Topology of one body, keyed by the file's instance ids.
struct Assembly<'a> {
doc: &'a Doc,
build: Builder,
vertices: HashMap<u64, VertexKey>,
/// Each edge, and whether it runs from the file's edge end to its start.
edges: HashMap<u64, (EdgeKey, bool)>,
/// The file's face of each face built, in build order.
faces: Vec<u64>,
}
impl Assembly<'_> {
fn vertex(&mut self, p: &P) -> Option<VertexKey> {
let id = p.reference()?;
if let Some(&v) = self.vertices.get(&id) {
return Some(v);
}
let (_, params) = self.doc.simple(id)?;
let v = self.build.vertex(self.doc.point(params.get(1)?)?);
self.vertices.insert(id, v);
Some(v)
}
fn edge(&mut self, p: &P) -> Option<(EdgeKey, bool)> {
let id = p.reference()?;
if let Some(&e) = self.edges.get(&id) {
return Some(e);
}
let (_, params) = self.doc.simple(id)?;
let (a, b) = (self.vertex(params.get(1)?)?, self.vertex(params.get(2)?)?);
let curve = self.doc.curve(params.get(3)?)?;
let same_sense = params.get(4).is_none_or(P::truth);
let key = if same_sense {
self.build.edge(curve, a, b)?
} else {
self.build.edge(curve, b, a)?
};
self.edges.insert(id, (key, !same_sense));
Some((key, !same_sense))
}
/// A bound's coedges, in the order the face runs them.
fn bound(&mut self, p: &P) -> Option<Vec<(EdgeKey, bool)>> {
let (_, params) = self.doc.simple(p.reference()?)?;
let ring_id = params.get(1)?.reference()?;
let agrees = params.get(2).is_none_or(P::truth);
let mut ring = Vec::new();
if self.doc.kind(ring_id) == "EDGE_LOOP" {
let (_, loop_params) = self.doc.simple(ring_id)?;
for oriented in loop_params.get(1)?.list() {
let (_, o) = self.doc.simple(oriented.reference()?)?;
let (edge, flipped) = self.edge(o.get(3)?)?;
let along = o.get(4).is_none_or(P::truth);
ring.push((edge, along != flipped));
}
}
if !agrees {
ring.reverse();
for (_, forward) in &mut ring {
*forward = !*forward;
}
}
Some(ring)
}
fn face(&mut self, p: &P, flip: bool) -> Option<FaceSpec> {
let id = p.reference()?;
self.faces.push(id);
let (_, params) = self.doc.simple(id)?;
let surface = self.doc.surface(params.get(2)?)?;
let mut outer = Vec::new();
let mut inner = Vec::new();
for bound in params.get(1)?.list() {
let ring = self.bound(bound)?;
if self.doc.kind(bound.reference()?) == "FACE_OUTER_BOUND" {
outer.push(ring);
} else {
inner.push(ring);
}
}
outer.extend(inner);
let mut loops = outer;
let mut forward = params.get(3).is_none_or(P::truth);
if flip {
forward = !forward;
for ring in &mut loops {
ring.reverse();
for (_, f) in ring.iter_mut() {
*f = !*f;
}
}
}
Some(FaceSpec {
surface,
forward,
loops,
})
}
/// A shell's faces; an oriented shell set against its faces flips them.
fn shell(&mut self, p: &P) -> Option<Vec<FaceSpec>> {
let mut id = p.reference()?;
let mut flip = false;
if self.doc.kind(id) == "ORIENTED_CLOSED_SHELL" || self.doc.kind(id) == "ORIENTED_OPEN_SHELL" {
let (_, params) = self.doc.simple(id)?;
flip = !params.get(3).is_none_or(P::truth);
id = params.get(2)?.reference()?;
}
let (_, params) = self.doc.simple(id)?;
params
.get(1)?
.list()
.iter()
.map(|face| self.face(face, flip))
.collect()
}
}
/// A 3×4 placement: the columns are the x, y and z axes and the origin.
pub type Placement = [[f64; 4]; 3];
const IDENTITY: Placement = [[1.0, 0.0, 0.0, 0.0], [0.0, 1.0, 0.0, 0.0], [0.0, 0.0, 1.0, 0.0]];
/// A body with the colours the file shows it in.
pub struct StepBody {
pub body: kernel::brep::Body,
/// The colour of the solid (or shell model) as a whole.
pub colour: Option<Rgb>,
/// Each face's own colour, in the body's face order.
pub faces: Vec<Option<Rgb>>,
}
/// One product: its own bodies and where each of its components sits.
pub struct StepProduct {
pub name: String,
pub bodies: Vec<StepBody>,
/// Components: the product (an index into [`StepModel::products`]) and
/// its placement in this one.
pub children: Vec<(usize, Placement)>,
}
/// What a STEP file holds.
pub struct StepModel {
/// Millimetres per file length unit.
pub unit_mm: f64,
pub products: Vec<StepProduct>,
/// The products no other one is a component of.
pub roots: Vec<usize>,
}
/// A named unit's size: millimetres for a length, radians for an angle.
fn unit_size(doc: &Doc, id: u64) -> Option<f64> {
if let Some(si) = doc.part(id, "SI_UNIT") {
let prefix = match si.first() {
Some(P::Enum(prefix)) => match prefix.as_str() {
"MILLI" => 1e-3,
"CENTI" => 1e-2,
"DECI" => 1e-1,
"KILO" => 1e3,
"MICRO" => 1e-6,
_ => 1.0,
},
_ => 1.0,
};
return Some(match si.get(1) {
Some(P::Enum(name)) if name == "METRE" => prefix * 1000.0,
_ => prefix,
});
}
let conversion = doc.part(id, "CONVERSION_BASED_UNIT")?;
let (_, measure) = doc.simple(conversion.get(1)?.reference()?)?;
Some(measure.first()?.num()? * unit_size(doc, measure.get(1)?.reference()?)?)
}
/// The bodies of one B-rep item: a solid, a solid with voids, or each shell
/// of a shell model.
fn item_bodies(doc: &Doc, id: u64) -> Vec<StepBody> {
let Some((kind, params)) = doc.simple(id) else {
return Vec::new();
};
let lumps: Vec<Vec<&P>> = match kind {
"MANIFOLD_SOLID_BREP" => vec![params.get(1).into_iter().collect()],
"BREP_WITH_VOIDS" => vec![params
.get(1)
.into_iter()
.chain(params.get(2).map(P::list).unwrap_or_default())
.collect()],
"SHELL_BASED_SURFACE_MODEL" => params
.get(1)
.map(P::list)
.unwrap_or_default()
.iter()
.map(|shell| vec![shell])
.collect(),
_ => return Vec::new(),
};
let mut bodies = Vec::new();
for lump in lumps {
let mut assembly = Assembly {
doc,
build: Builder::new(),
vertices: HashMap::new(),
edges: HashMap::new(),
faces: Vec::new(),
};
let faces: Option<Vec<_>> = lump.iter().map(|shell| assembly.shell(shell)).collect();
if let Some(faces) = faces {
if assembly.build.lump(faces).is_some() {
// The item's own style, or its (first) shell's.
let colour = doc.styles.get(&id).copied().or_else(|| {
lump.iter()
.filter_map(|shell| shell.reference())
.find_map(|shell| doc.styles.get(&shell).copied())
});
bodies.push(StepBody {
body: assembly.build.body,
colour,
faces: assembly.faces.iter().map(|face| doc.styles.get(face).copied()).collect(),
});
}
}
}
bodies
}
impl Doc {
/// An axis placement as a placement matrix.
fn frame(&self, id: u64) -> Option<Placement> {
let plane = self.placement(&P::Ref(id))?;
let z = plane.normal()?;
let [x, y, o] = [plane.x_axis, plane.y_axis, plane.origin];
Some([0, 1, 2].map(|r| [x[r], y[r], z[r], o[r]]))
}
}
/// `a·b`.
fn compose(a: &Placement, b: &Placement) -> Placement {
let mut out = [[0.0; 4]; 3];
for r in 0..3 {
for c in 0..4 {
out[r][c] = (0..3).map(|k| a[r][k] * b[k][c]).sum::<f64>() + if c == 3 { a[r][3] } else { 0.0 };
}
}
out
}
/// The inverse of a rigid placement.
fn invert(a: &Placement) -> Placement {
let mut out = [[0.0; 4]; 3];
for r in 0..3 {
for c in 0..3 {
out[r][c] = a[c][r];
}
out[r][3] = -(0..3).map(|k| a[k][r] * a[k][3]).sum::<f64>();
}
out
}
pub fn read(bytes: &[u8]) -> Option<StepModel> {
let text = String::from_utf8_lossy(bytes);
if !text.trim_start().starts_with("ISO-10303-21") {
return None;
}
let data = text.find("DATA;")? + 5;
let mut cursor = Cursor {
s: &text.as_bytes()[data..],
i: 0,
};
let mut instances = HashMap::new();
while cursor.peek() == Some(b'#') {
match cursor.instance() {
Some((id, parts)) => {
instances.insert(id, parts);
}
None => {
// Skip a malformed instance up to the next one.
while cursor.s.get(cursor.i).is_some_and(|c| *c != b';') {
cursor.i += 1;
}
cursor.i += 1;
}
}
}
let mut doc = Doc {
instances,
angle: 1.0,
styles: HashMap::new(),
};
let mut unit_mm = 1.0;
let mut angle = 1.0;
let mut ids: Vec<u64> = doc.instances.keys().copied().collect();
ids.sort_unstable();
for &id in &ids {
let Some(units) = doc.part(id, "GLOBAL_UNIT_ASSIGNED_CONTEXT") else {
continue;
};
for unit in units.first().map(P::list).unwrap_or_default() {
let Some(unit) = unit.reference() else { continue };
if doc.part(unit, "LENGTH_UNIT").is_some() {
unit_mm = unit_size(&doc, unit).unwrap_or(1.0);
} else if doc.part(unit, "PLANE_ANGLE_UNIT").is_some() {
angle = unit_size(&doc, unit).unwrap_or(1.0);
}
}
break;
}
doc.angle = angle;
// Styled items: plain ones first, so an overriding style wins.
let mut styled = Vec::new();
for kind in ["STYLED_ITEM", "OVER_RIDING_STYLED_ITEM"] {
for &id in &ids {
if doc.kind(id) != kind {
continue;
}
let Some((_, params)) = doc.simple(id) else { continue };
let (Some(styles), Some(item)) = (params.get(1), params.get(2).and_then(P::reference)) else {
continue;
};
if let Some(colour) = doc.style_colour(styles) {
styled.push((item, colour));
}
}
}
doc.styles.extend(styled);
let doc = doc;
// What each instance id is, by kind.
let of_kind = |kind: &str| -> Vec<u64> {
ids.iter()
.copied()
.filter(|&id| doc.kind(id) == kind)
.collect()
};
let param = |id: u64, k: usize| doc.simple(id).and_then(|(_, p)| p.get(k)).and_then(P::reference);
// Product definitions and the name of the product each defines.
let definitions: Vec<u64> = ids
.iter()
.copied()
.filter(|&id| {
matches!(doc.kind(id), "PRODUCT_DEFINITION" | "PRODUCT_DEFINITION_WITH_ASSOCIATED_DOCUMENTS")
})
.collect();
let product_name = |definition: u64| -> String {
let product = param(definition, 2).and_then(|formation| param(formation, 2));
product
.and_then(|p| doc.simple(p))
.and_then(|(_, params)| {
params
.get(1)
.and_then(P::text)
.filter(|s| !s.trim().is_empty())
.or_else(|| params.first().and_then(P::text))
})
.unwrap_or_default()
.to_string()
};
// The shape of a definition (or an occurrence), and the representations
// attached to a shape.
let shape_of: HashMap<u64, u64> = of_kind("PRODUCT_DEFINITION_SHAPE")
.into_iter()
.filter_map(|pds| Some((param(pds, 2)?, pds)))
.collect();
let mut reps_of_shape: HashMap<u64, Vec<u64>> = HashMap::new();
for sdr in of_kind("SHAPE_DEFINITION_REPRESENTATION") {
if let (Some(pds), Some(rep)) = (param(sdr, 0), param(sdr, 1)) {
reps_of_shape.entry(pds).or_default().push(rep);
}
}
// Representations tied without a transformation share their items.
let mut linked: HashMap<u64, Vec<u64>> = HashMap::new();
for id in &ids {
let Some(("SHAPE_REPRESENTATION_RELATIONSHIP", params)) = doc.simple(*id) else {
continue;
};
if let (Some(a), Some(b)) = (params.get(2).and_then(P::reference), params.get(3).and_then(P::reference)) {
linked.entry(a).or_default().push(b);
linked.entry(b).or_default().push(a);
}
}
let items_of = |rep: u64| -> Vec<u64> {
let mut seen = vec![rep];
let mut at = 0;
while at < seen.len() {
for next in linked.get(&seen[at]).into_iter().flatten() {
if !seen.contains(next) {
seen.push(*next);
}
}
at += 1;
}
seen.iter()
.filter_map(|r| doc.simple(*r))
.flat_map(|(_, params)| params.get(1).map(P::list).unwrap_or_default())
.filter_map(P::reference)
.collect()
};
let mut index: HashMap<u64, usize> = HashMap::new();
let mut products: Vec<StepProduct> = Vec::new();
let mut used_items: Vec<u64> = Vec::new();
for &definition in &definitions {
let mut bodies = Vec::new();
for rep in shape_of.get(&definition).and_then(|pds| reps_of_shape.get(pds)).into_iter().flatten() {
for item in items_of(*rep) {
if !used_items.contains(&item) {
let found = item_bodies(&doc, item);
if !found.is_empty() {
used_items.push(item);
}
bodies.extend(found);
}
}
}
index.insert(definition, products.len());
products.push(StepProduct {
name: product_name(definition),
bodies,
children: Vec::new(),
});
}
// Components, placed by the transformation of their occurrence.
let mut component = vec![false; products.len()];
for occurrence in of_kind("NEXT_ASSEMBLY_USAGE_OCCURRENCE") {
let (Some(&parent), Some(&child)) = (
param(occurrence, 3).and_then(|d| index.get(&d)),
param(occurrence, 4).and_then(|d| index.get(&d)),
) else {
continue;
};
let placement = shape_of
.get(&occurrence)
.and_then(|pds| {
ids.iter().copied().find(|&id| {
doc.kind(id) == "CONTEXT_DEPENDENT_SHAPE_REPRESENTATION" && param(id, 1) == Some(*pds)
})
})
.and_then(|cdsr| param(cdsr, 0))
.and_then(|relation| doc.part(relation, "REPRESENTATION_RELATIONSHIP_WITH_TRANSFORMATION"))
.and_then(|p| p.first()?.reference())
.and_then(|transformation| {
let (_, t) = doc.simple(transformation)?;
let from = doc.frame(t.get(2)?.reference()?)?;
let to = doc.frame(t.get(3)?.reference()?)?;
Some(compose(&to, &invert(&from)))
})
.unwrap_or(IDENTITY);
products[parent].children.push((child, placement));
component[child] = true;
}
// A file whose solids no product claims: one product holding them all,
// named after the file's first product.
let loose: Vec<u64> = ids
.iter()
.copied()
.filter(|id| !used_items.contains(id))
.collect();
let mut loose_bodies = Vec::new();
for id in loose {
loose_bodies.extend(item_bodies(&doc, id));
}
if !loose_bodies.is_empty() {
let name = definitions.first().map(|d| product_name(*d)).unwrap_or_default();
component.push(false);
products.push(StepProduct {
name,
bodies: loose_bodies,
children: Vec::new(),
});
}
let roots = (0..products.len())
.filter(|&k| !component[k] && (!products[k].bodies.is_empty() || !products[k].children.is_empty()))
.collect();
Some(StepModel {
unit_mm,
products,
roots,
})
}
+403
View File
@@ -0,0 +1,403 @@
//! 3D Studio (.3ds) reading: the materials, meshes, lights and cameras of a
//! file's editor section, and their conversion to drawing objects — each
//! mesh a polyface mesh on a layer chosen by object, material, object colour
//! or a single layer, with its material; each camera a named view.
use std::collections::HashMap;
use codec::entities::{PolyfaceFace, PolyfaceMesh, PolyfaceVertex};
use codec::types::Vector3;
pub struct TdsMaterial {
pub name: String,
pub ambient: Option<[u8; 3]>,
pub diffuse: Option<[u8; 3]>,
pub specular: Option<[u8; 3]>,
}
pub struct TdsMesh {
pub vertices: Vec<[f64; 3]>,
pub faces: Vec<[usize; 3]>,
/// Each material the mesh uses and the faces it covers, in file order.
pub groups: Vec<(String, Vec<usize>)>,
/// The object colour, a palette index, when the file gives one.
pub color: Option<u8>,
}
pub struct TdsCamera {
pub position: [f64; 3],
pub target: [f64; 3],
pub lens: f64,
}
pub enum TdsObject {
Mesh(TdsMesh),
Light,
Camera(TdsCamera),
}
impl TdsObject {
/// The kind as the import window lists it.
pub fn kind(&self) -> &'static str {
match self {
TdsObject::Mesh(_) => "Mesh",
TdsObject::Light => "Light",
TdsObject::Camera(_) => "Camera",
}
}
}
pub struct TdsScene {
pub materials: Vec<TdsMaterial>,
pub objects: Vec<(String, TdsObject)>,
}
impl TdsScene {
/// The materials a mesh uses, in the order the file defines them.
pub fn mesh_materials(&self, mesh: &TdsMesh) -> Vec<String> {
let mut used: Vec<String> = Vec::new();
for m in &self.materials {
if mesh.groups.iter().any(|(name, faces)| !faces.is_empty() && *name == m.name) {
used.push(m.name.clone());
}
}
for (name, faces) in &mesh.groups {
if !faces.is_empty() && !used.contains(name) {
used.push(name.clone());
}
}
used
}
}
struct Reader<'a> {
b: &'a [u8],
}
impl Reader<'_> {
fn u16(&self, at: usize) -> Option<u16> {
Some(u16::from_le_bytes([*self.b.get(at)?, *self.b.get(at + 1)?]))
}
fn u32(&self, at: usize) -> Option<u32> {
Some(u32::from_le_bytes(self.b.get(at..at + 4)?.try_into().ok()?))
}
fn f32(&self, at: usize) -> Option<f64> {
Some(f64::from(f32::from_le_bytes(self.b.get(at..at + 4)?.try_into().ok()?)))
}
fn point(&self, at: usize) -> Option<[f64; 3]> {
Some([self.f32(at)?, self.f32(at + 4)?, self.f32(at + 8)?])
}
/// A zero-terminated string and the offset after it.
fn cstr(&self, at: usize, end: usize) -> (String, usize) {
let stop = self.b[at.min(end)..end]
.iter()
.position(|c| *c == 0)
.map_or(end, |k| at + k);
(
String::from_utf8_lossy(&self.b[at.min(stop)..stop]).into_owned(),
(stop + 1).min(end),
)
}
/// The chunks between `from` and `to`: id, body start, body end.
fn chunks(&self, from: usize, to: usize) -> Vec<(u16, usize, usize)> {
let mut out = Vec::new();
let mut at = from;
while at + 6 <= to {
let (Some(id), Some(len)) = (self.u16(at), self.u32(at + 2)) else { break };
let len = len as usize;
if len < 6 || at + len > to {
break;
}
out.push((id, at + 6, at + len));
at += len;
}
out
}
/// A colour chunk's 8-bit RGB: 24-bit or float, plain before linear.
fn color(&self, from: usize, to: usize) -> Option<[u8; 3]> {
let chunks = self.chunks(from, to);
for want in [0x0011, 0x0010, 0x0012, 0x0013] {
for &(id, start, _) in &chunks {
if id != want {
continue;
}
return Some(match id {
0x0011 | 0x0012 => [*self.b.get(start)?, *self.b.get(start + 1)?, *self.b.get(start + 2)?],
_ => self.point(start)?.map(|c| (c.clamp(0.0, 1.0) * 255.0).round() as u8),
});
}
}
None
}
}
/// `None` when the bytes are no 3D Studio file.
pub fn read(bytes: &[u8]) -> Option<TdsScene> {
let r = Reader { b: bytes };
if r.u16(0)? != 0x4D4D {
return None;
}
let end = (r.u32(2)? as usize).min(bytes.len());
let mut scene = TdsScene {
materials: Vec::new(),
objects: Vec::new(),
};
for (id, start, stop) in r.chunks(6, end) {
if id != 0x3D3D {
continue;
}
for (id, start, stop) in r.chunks(start, stop) {
match id {
0xAFFF => {
let mut material = TdsMaterial {
name: String::new(),
ambient: None,
diffuse: None,
specular: None,
};
for (id, s, e) in r.chunks(start, stop) {
match id {
0xA000 => material.name = r.cstr(s, e).0,
0xA010 => material.ambient = r.color(s, e),
0xA020 => material.diffuse = r.color(s, e),
0xA030 => material.specular = r.color(s, e),
_ => {}
}
}
scene.materials.push(material);
}
0x4000 => {
let (name, body) = r.cstr(start, stop);
for (id, s, e) in r.chunks(body, stop) {
let object = match id {
0x4100 => TdsObject::Mesh(read_mesh(&r, s, e)),
0x4600 => TdsObject::Light,
0x4700 => TdsObject::Camera(TdsCamera {
position: r.point(s)?,
target: r.point(s + 12)?,
lens: r.f32(s + 28).filter(|l| *l > 0.0).unwrap_or(50.0),
}),
_ => continue,
};
scene.objects.push((name.clone(), object));
break;
}
}
_ => {}
}
}
}
Some(scene)
}
fn read_mesh(r: &Reader<'_>, from: usize, to: usize) -> TdsMesh {
let mut mesh = TdsMesh {
vertices: Vec::new(),
faces: Vec::new(),
groups: Vec::new(),
color: None,
};
for (id, s, e) in r.chunks(from, to) {
match id {
0x4110 => {
let n = r.u16(s).unwrap_or(0) as usize;
mesh.vertices = (0..n).filter_map(|k| r.point(s + 2 + 12 * k)).collect();
}
0x4120 => {
let n = r.u16(s).unwrap_or(0) as usize;
mesh.faces = (0..n)
.filter_map(|k| {
let at = s + 2 + 8 * k;
Some([r.u16(at)? as usize, r.u16(at + 2)? as usize, r.u16(at + 4)? as usize])
})
.collect();
for (id, gs, ge) in r.chunks(s + 2 + 8 * n, e) {
if id == 0x4130 {
let (name, at) = r.cstr(gs, ge);
let count = r.u16(at).unwrap_or(0) as usize;
let faces = (0..count).filter_map(|k| r.u16(at + 2 + 2 * k).map(usize::from)).collect();
mesh.groups.push((name, faces));
}
}
}
0x4165 => mesh.color = r.b.get(s).copied(),
_ => {}
}
}
mesh
}
/// Where imported objects go.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub enum LayerMode {
#[default]
ByObject,
ByMaterial,
ByObjectColor,
Single,
}
/// What a mesh with several materials becomes.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum MultiMaterial {
/// One mesh per material.
Split,
/// One mesh with the first material the file defines.
First,
/// One mesh with this material, or none.
Material(Option<String>),
}
pub struct TdsOptions {
/// The objects to import, by name ("Global Settings" included).
pub selected: Vec<String>,
pub layers: LayerMode,
/// The choice for each mesh with several materials, by name.
pub multi: HashMap<String, MultiMaterial>,
/// Whether meshes keep only the vertices their faces use, in the order
/// they first use them — as they do when the import splits by
/// material or asks — rather than the file's vertex list.
pub compact: bool,
}
/// One imported mesh.
pub struct TdsPart {
pub layer: String,
pub material: Option<String>,
pub mesh: PolyfaceMesh,
}
pub struct TdsCameraView {
pub name: String,
pub target: [f64; 3],
pub direction: [f64; 3],
/// The view height at the target, from the lens.
pub height: f64,
pub lens: f64,
}
pub struct TdsImport {
pub parts: Vec<TdsPart>,
/// The materials the parts use, in the order they were first used.
pub materials: Vec<String>,
pub views: Vec<TdsCameraView>,
pub messages: Vec<String>,
}
/// A polyface mesh of `faces` of `mesh`: its vertices in file order, or
/// (`compact`) only those the faces use, in the order they first use them.
fn polyface(mesh: &TdsMesh, faces: &[usize], compact: bool) -> PolyfaceMesh {
let mut out = PolyfaceMesh::new();
let mut index: HashMap<usize, i16> = HashMap::new();
if !compact {
for (k, v) in mesh.vertices.iter().enumerate() {
index.insert(k, out.add_vertex(PolyfaceVertex::new(Vector3::new(v[0], v[1], v[2]))));
}
}
for &f in faces {
let Some(face) = mesh.faces.get(f) else { continue };
if face.iter().any(|v| *v >= mesh.vertices.len()) {
continue;
}
let ids = face.map(|v| {
*index.entry(v).or_insert_with(|| {
let p = mesh.vertices[v];
out.add_vertex(PolyfaceVertex::new(Vector3::new(p[0], p[1], p[2])))
})
});
out.add_face(PolyfaceFace::triangle(ids[0], ids[1], ids[2]));
}
out
}
/// The view height a camera's lens sees at the target distance.
// ponytail: one measured camera (50 mm at 86.46 units gives 30.457); the
// height is taken as proportional to distance over lens.
fn view_height(distance: f64, lens: f64) -> f64 {
distance * 17.6141 / lens
}
pub fn convert(scene: &TdsScene, options: &TdsOptions) -> TdsImport {
let mut out = TdsImport {
parts: Vec::new(),
materials: Vec::new(),
views: Vec::new(),
messages: Vec::new(),
};
let chosen = |name: &str| options.selected.iter().any(|s| s == name);
// The objects are taken in the order the window lists them, by name.
let mut objects: Vec<&(String, TdsObject)> = scene.objects.iter().collect();
objects.sort_by_key(|(name, _)| name.to_lowercase());
for (name, object) in objects {
if !chosen(name) {
continue;
}
match object {
TdsObject::Mesh(mesh) => {
out.messages.push(format!("Processing object {name}"));
let materials = scene.mesh_materials(mesh);
let all: Vec<usize> = (0..mesh.faces.len()).collect();
let pieces: Vec<(Option<String>, Vec<usize>)> = if materials.len() > 1 {
match options.multi.get(name).cloned().unwrap_or(MultiMaterial::Split) {
MultiMaterial::Split => materials
.iter()
.map(|m| {
let faces = mesh
.groups
.iter()
.filter(|(g, _)| g == m)
.flat_map(|(_, f)| f.iter().copied())
.collect();
(Some(m.clone()), faces)
})
.collect(),
MultiMaterial::First => vec![(materials.first().cloned(), all)],
MultiMaterial::Material(m) => vec![(m, all)],
}
} else {
vec![(materials.first().cloned(), all)]
};
let compact = options.compact || pieces.len() > 1;
for (material, faces) in pieces {
if let Some(m) = &material {
if !out.materials.contains(m) {
out.messages.push(format!("Converting material {m}"));
out.materials.push(m.clone());
}
}
let layer = match options.layers {
LayerMode::ByObject => name.to_uppercase(),
LayerMode::ByMaterial => material.as_deref().unwrap_or("0").to_uppercase(),
LayerMode::ByObjectColor => match mesh.color {
Some(c) => format!("COLOR{c:02}"),
None => "COLORNONE".to_string(),
},
LayerMode::Single => "AVLAYER".to_string(),
};
out.parts.push(TdsPart {
layer,
material,
mesh: polyface(mesh, &faces, compact),
});
}
}
TdsObject::Camera(camera) => {
let name = name.to_uppercase();
out.messages.push(format!("Creating camera {name}"));
let direction = [0, 1, 2].map(|k| camera.position[k] - camera.target[k]);
let distance = direction.iter().map(|d| d * d).sum::<f64>().sqrt();
out.views.push(TdsCameraView {
name,
target: camera.target,
direction,
height: view_height(distance, camera.lens),
lens: camera.lens,
});
}
TdsObject::Light => {}
}
}
out.messages.push("3D Studio file import completed".to_string());
out
}
+549
View File
@@ -0,0 +1,549 @@
//! Windows metafile (WMF) reading: the records a metafile plays, as the
//! drawing objects of a block — outlines as polylines in their pen's colour
//! and width, filled shapes as closed polylines in their brush's colour,
//! ellipses as 99-segment polylines, arcs and pies on whole units, text as
//! single-line text placed and sized by its font's own ascent. Chords are
//! not read.
//!
//! The picture is scaled to fit half the view it is imported into, with its
//! top-left corner at the block's origin and y running down the screen as
//! a metafile's does.
use codec::entities::{Polyline2D, Text, Vertex2D};
use codec::types::{Color, Vector3};
use codec::EntityType;
/// A font face as the text uses it: its name, and whether bold and italic.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Face {
pub name: String,
pub bold: bool,
pub italic: bool,
}
/// A picture: its objects, in block coordinates, and the font of each
/// text (an index into `fonts`).
pub struct Picture {
pub entities: Vec<EntityType>,
/// Each face the text uses, in the order first used; each becomes a
/// text style.
pub fonts: Vec<Face>,
/// For each text in `entities` (by position), its font index.
pub text_fonts: Vec<(usize, usize)>,
}
#[derive(Clone, Copy)]
struct Pen {
null: bool,
width: f64,
rgb: [u8; 3],
}
#[derive(Clone, Copy)]
struct Brush {
null: bool,
rgb: [u8; 3],
}
#[derive(Clone)]
struct Font {
/// The logical height: negative for the character height, positive for
/// the cell height.
height: f64,
escapement: f64,
weight: i32,
italic: bool,
face: String,
}
/// A font's ascent, in metafile units, as the system lays the font out at
/// its logical height: the baseline sits this far below a text's reference
/// point. Without the system's font engine it is nine tenths of the height.
#[cfg(target_os = "windows")]
fn ascent(font: &Font) -> f64 {
use windows_sys::Win32::Graphics::Gdi::{
CreateCompatibleDC, CreateFontIndirectW, DeleteDC, DeleteObject, GetTextMetricsW,
SelectObject, LOGFONTW, TEXTMETRICW,
};
// SAFETY: a private memory device context and font, released before
// returning; the structures are plain data the calls fill.
unsafe {
let mut logfont: LOGFONTW = std::mem::zeroed();
logfont.lfHeight = font.height as i32;
logfont.lfWeight = font.weight;
logfont.lfItalic = u8::from(font.italic);
for (slot, unit) in logfont
.lfFaceName
.iter_mut()
.zip(font.face.encode_utf16().take(31))
{
*slot = unit;
}
let dc = CreateCompatibleDC(std::ptr::null_mut());
if dc.is_null() {
return 0.9 * font.height.abs();
}
let handle = CreateFontIndirectW(&logfont);
let previous = SelectObject(dc, handle);
let mut metrics: TEXTMETRICW = std::mem::zeroed();
let ok = GetTextMetricsW(dc, &mut metrics) != 0;
SelectObject(dc, previous);
DeleteObject(handle);
DeleteDC(dc);
if ok {
f64::from(metrics.tmAscent)
} else {
0.9 * font.height.abs()
}
}
}
#[cfg(not(target_os = "windows"))]
fn ascent(font: &Font) -> f64 {
0.9 * font.height.abs()
}
#[derive(Clone)]
enum Object {
Pen(Pen),
Brush(Brush),
Font(Font),
Other,
}
/// Segments of a whole ellipse.
const ELLIPSE_SEGMENTS: usize = 99;
/// A colour reference as the nearest index colour; black and white both
/// draw as colour 7.
fn color(rgb: [u8; 3]) -> Color {
if rgb == [0, 0, 0] || rgb == [255, 255, 255] {
return Color::Index(7);
}
Color::Index(codec::types::nearest_aci(rgb[0], rgb[1], rgb[2]))
}
fn colorref(lo: u16, hi: u16) -> [u8; 3] {
[(lo & 0xff) as u8, (lo >> 8) as u8, (hi & 0xff) as u8]
}
struct Player {
origin: [f64; 2],
scale: [f64; 2],
entities: Vec<EntityType>,
fonts: Vec<Face>,
text_fonts: Vec<(usize, usize)>,
}
impl Player {
fn at(&self, x: f64, y: f64) -> Vector3 {
Vector3::new((x - self.origin[0]) * self.scale[0], (y - self.origin[1]) * self.scale[1], 0.0)
}
fn polyline(&mut self, points: &[[f64; 2]], closed: bool, width: f64, rgb: [u8; 3]) {
if points.len() < 2 {
return;
}
let width = width * self.scale[0].abs();
let mut polyline = Polyline2D::new();
polyline.start_width = width;
polyline.end_width = width;
for p in points {
let mut vertex = Vertex2D::new(self.at(p[0], p[1]));
vertex.start_width = width;
vertex.end_width = width;
polyline.add_vertex(vertex);
}
if closed {
polyline.close();
}
polyline.common.color = color(rgb);
self.entities.push(EntityType::Polyline2D(polyline));
}
/// An outline in the pen, or a filled area as its brush's outline.
fn shape(&mut self, points: &[[f64; 2]], pen: &Pen, brush: &Brush) {
let width = if pen.null { 0.0 } else { pen.width };
if !brush.null {
self.polyline(points, true, width, brush.rgb);
} else if !pen.null {
self.polyline(points, true, width, pen.rgb);
}
}
}
/// Points round an ellipse inside `(left, top)–(right, bottom)`, from
/// `start` to `end` (radians, counter-clockwise in drawing coordinates).
fn ellipse_points(bounds: [f64; 4], start: f64, sweep: f64) -> Vec<[f64; 2]> {
let [left, top, right, bottom] = bounds;
let (cx, cy) = (0.5 * (left + right), 0.5 * (top + bottom));
let (rx, ry) = (0.5 * (right - left).abs(), 0.5 * (bottom - top).abs());
let step = std::f64::consts::TAU / ELLIPSE_SEGMENTS as f64;
let count = ((sweep.abs() / step).round() as usize).max(1);
(0..=count)
.map(|k| {
let a = start + sweep * k as f64 / count as f64;
// Metafile y runs down: counter-clockwise on the drawing is
// up the page.
[cx + rx * a.cos(), cy - ry * a.sin()]
})
.collect()
}
/// Turns an arc is cut into: its points lie on whole multiples of this
/// share of a turn.
const ARC_STEPS: i64 = 99;
/// The angle of a radial point round an ellipse, in degrees in `(0, 360]`
/// counter-clockwise in drawing orientation — or `None` for a point inside
/// the ellipse, which marks no angle.
fn radial_angle(bounds: [f64; 4], x: f64, y: f64) -> Option<f64> {
let [left, top, right, bottom] = bounds;
let (cx, cy) = (0.5 * (left + right), 0.5 * (top + bottom));
let (rx, ry) = (0.5 * (right - left).abs(), 0.5 * (bottom - top).abs());
let (u, v) = ((x - cx) / rx, -(y - cy) / ry);
if u.hypot(v) < 1.0 {
return None;
}
let degrees = v.atan2(u).to_degrees().rem_euclid(360.0);
Some(if degrees == 0.0 { 360.0 } else { degrees })
}
/// An arc as the reference reader plays it: points round the ellipse's
/// whole-unit centre and radii at whole multiples of 1/99 turn, rounded
/// down to whole units, from the start angle up to the end angle — past
/// 360 degrees back from zero when the end comes first. A start inside the
/// ellipse starts at zero; an end inside it runs on to a whole turn; with
/// both inside there is no arc.
fn arc_points(bounds: [f64; 4], start: [f64; 2], end: [f64; 2]) -> Vec<[f64; 2]> {
let [left, top, right, bottom] = bounds.map(|v| v as i64);
let (cx, cy) = ((left + right).div_euclid(2), (top + bottom).div_euclid(2));
let (rx, ry) = ((right - left).abs() / 2, (bottom - top).abs() / 2);
let (from, to) = (radial_angle(bounds, start[0], start[1]), radial_angle(bounds, end[0], end[1]));
let (start_angle, end_angle) = match (from, to) {
(None, None) => return Vec::new(),
(None, to) => (0.0, to),
(Some(from), to) => (from, to.filter(|to| *to != from)),
};
// The angles are stepped out from zero one step at a time in degrees,
// rounding and all, as the points come out.
let mut degrees = vec![0.0f64; ARC_STEPS as usize + 1];
for k in 1..degrees.len() {
degrees[k] = degrees[k - 1] + 360.0 / ARC_STEPS as f64;
}
let point = |k: i64| {
let a = degrees[k as usize] * (std::f64::consts::PI / 180.0);
[
(cx as f64 + rx as f64 * a.cos()).floor(),
(cy as f64 + ry as f64 * -a.sin()).floor(),
]
};
// `k` steps lie below an angle when k·360 < angle·99, kept exact.
let under = |k: &i64, angle: f64| ((k * 360) as f64) < angle * ARC_STEPS as f64;
let first = (start_angle * ARC_STEPS as f64 / 360.0).ceil() as i64;
let mut steps: Vec<i64> = match end_angle {
// Up to the end.
Some(to) if to > start_angle => (first..).take_while(|k| under(k, to)).collect(),
// Round to a whole turn, then from zero up to the end.
Some(to) => (first..=ARC_STEPS).chain((0..).take_while(|k| under(k, to))).collect(),
// Round to a whole turn.
None => (first..=ARC_STEPS).collect(),
};
// The whole-unit points next to the start and end rays are judged by
// which side of the ray they fall: a point on the start ray is left
// out, one on the end ray kept.
let (fx, fy) = (0.5 * (bounds[0] + bounds[2]), 0.5 * (bounds[1] + bounds[3]));
let side = |ray: [f64; 2], k: i64| {
let p = point(k);
let (ux, uy) = (ray[0] - fx, -(ray[1] - fy));
let (vx, vy) = (p[0] - fx, -(p[1] - fy));
ux * vy - uy * vx
};
if from.is_some() {
if let Some(&k) = steps.first() {
if k < ARC_STEPS && side(start, k) <= 0.0 {
steps.remove(0);
} else if k > 0 && k < ARC_STEPS && side(start, k - 1) > 0.0 {
steps.insert(0, k - 1);
}
}
}
if end_angle.is_some() {
if let Some(&k) = steps.last() {
if k > 0 && side(end, k) > 0.0 {
steps.pop();
} else if k + 1 < ARC_STEPS && side(end, k + 1) <= 0.0 {
steps.push(k + 1);
}
}
}
steps.into_iter().map(point).collect()
}
/// Reads a metafile, scaled so the picture fits within `fit` (width and
/// height, drawing units). `None` when it is not a metafile.
pub fn read(bytes: &[u8], fit: [f64; 2]) -> Option<Picture> {
let word = |at: usize| -> Option<u16> {
Some(u16::from_le_bytes([*bytes.get(at)?, *bytes.get(at + 1)?]))
};
let mut at = 0;
let mut bounds = None;
if word(0)? == 0xCDD7 && word(2)? == 0x9AC6 {
let s = |k: usize| word(6 + 2 * k).map(|w| w as i16 as f64);
bounds = Some([s(0)?, s(1)?, s(2)?, s(3)?]);
at = 22;
}
// The metafile header: type 1 or 2, nine words long.
if !matches!(word(at)?, 1 | 2) || word(at + 2)? != 9 {
return None;
}
at += 18;
let mut records = Vec::new();
while at + 6 <= bytes.len() {
let size = (u32::from(word(at)?) | (u32::from(word(at + 2)?) << 16)) as usize;
let function = word(at + 4)?;
if function == 0 || size < 3 {
break;
}
let params: Vec<u16> = (0..size - 3).filter_map(|k| word(at + 6 + 2 * k)).collect();
records.push((function, params));
at += 2 * size;
}
// The window first: where the picture is and how big.
let mut origin = [0.0, 0.0];
let mut extent = None;
for (function, p) in &records {
let s = |k: usize| p.get(k).map(|w| *w as i16 as f64);
match function {
0x020B => origin = [s(1)?, s(0)?],
0x020C => extent = Some([s(1)?, s(0)?]),
_ => {}
}
}
let extent = extent
.or_else(|| bounds.map(|[l, t, r, b]| [r - l, b - t]))
.filter(|[w, h]| *w != 0.0 && *h != 0.0)?;
if let (None, Some([l, t, _, _])) = (records.iter().find(|(f, _)| *f == 0x020B), bounds) {
origin = [l, t];
}
let scale = (fit[0] / extent[0].abs()).min(fit[1] / extent[1].abs());
let mut player = Player {
origin,
scale: [scale * extent[0].signum(), -scale * extent[1].signum()],
entities: Vec::new(),
fonts: Vec::new(),
text_fonts: Vec::new(),
};
// A fresh device context: a one-unit black pen, a white brush.
let mut pen = Pen {
null: false,
width: 1.0,
rgb: [0, 0, 0],
};
let mut brush = Brush {
null: false,
rgb: [255, 255, 255],
};
let mut font = Font {
height: 12.0,
escapement: 0.0,
weight: 400,
italic: false,
face: String::new(),
};
let mut text_rgb = [0, 0, 0];
let mut table: Vec<Option<Object>> = Vec::new();
let mut current = [0.0, 0.0];
for (function, p) in &records {
let s = |k: usize| p.get(k).map(|w| *w as i16 as f64).unwrap_or(0.0);
let points = |from: usize, count: usize| -> Vec<[f64; 2]> {
(0..count).map(|k| [s(from + 2 * k), s(from + 2 * k + 1)]).collect()
};
let create = |table: &mut Vec<Option<Object>>, object: Object| {
match table.iter().position(Option::is_none) {
Some(slot) => table[slot] = Some(object),
None => table.push(Some(object)),
}
};
match function {
// CREATEPENINDIRECT
0x02FA => create(
&mut table,
Object::Pen(Pen {
null: p.first().is_some_and(|style| style & 0x0f == 5),
width: s(1),
rgb: colorref(p.get(3).copied().unwrap_or(0), p.get(4).copied().unwrap_or(0)),
}),
),
// CREATEBRUSHINDIRECT
0x02FC => create(
&mut table,
Object::Brush(Brush {
null: p.first() == Some(&1),
rgb: colorref(p.get(1).copied().unwrap_or(0), p.get(2).copied().unwrap_or(0)),
}),
),
// CREATEFONTINDIRECT: height, width, escapement, ... face at
// byte 18.
0x02FB => {
let mut face = Vec::new();
for w in p.iter().skip(9) {
face.extend(w.to_le_bytes());
}
let end = face.iter().position(|b| *b == 0).unwrap_or(face.len());
create(
&mut table,
Object::Font(Font {
height: s(0),
escapement: s(2) / 10.0,
weight: s(4) as i32,
italic: p.get(5).is_some_and(|w| w & 0xff != 0),
face: String::from_utf8_lossy(&face[..end]).into_owned(),
}),
)
}
// Palettes and regions take a slot too.
0x00F7 | 0x06FF | 0x01F9 | 0x0142 => create(&mut table, Object::Other),
// SELECTOBJECT
0x012D => match table.get(p.first().copied().unwrap_or(0) as usize) {
Some(Some(Object::Pen(x))) => pen = *x,
Some(Some(Object::Brush(x))) => brush = *x,
Some(Some(Object::Font(x))) => font = x.clone(),
_ => {}
},
// DELETEOBJECT
0x01F0 => {
if let Some(slot) = table.get_mut(p.first().copied().unwrap_or(0) as usize) {
*slot = None;
}
}
// SETTEXTCOLOR
0x0209 => text_rgb = colorref(p.first().copied().unwrap_or(0), p.get(1).copied().unwrap_or(0)),
// MOVETO, LINETO (y, x)
0x0214 => current = [s(1), s(0)],
0x0213 => {
let to = [s(1), s(0)];
if !pen.null {
player.polyline(&[current, to], false, pen.width, pen.rgb);
}
current = to;
}
// POLYLINE
0x0325 => {
if !pen.null {
let line = points(1, s(0) as usize);
player.polyline(&line, false, pen.width, pen.rgb);
}
}
// POLYGON
0x0324 => {
let ring = points(1, s(0) as usize);
player.shape(&ring, &pen, &brush);
}
// POLYPOLYGON: counts, then every ring's points
0x0538 => {
let rings = s(0) as usize;
let mut from = 1 + rings;
for k in 0..rings {
let count = s(1 + k) as usize;
let ring = points(from, count);
player.shape(&ring, &pen, &brush);
from += 2 * count;
}
}
// RECTANGLE, ROUNDRECT (bottom, right, top, left; corner
// ellipse first for the latter)
0x041B | 0x061C => {
let o = if *function == 0x061C { 2 } else { 0 };
let (b, r, t, l) = (s(o), s(o + 1), s(o + 2), s(o + 3));
player.shape(&[[l, t], [r, t], [r, b], [l, b]], &pen, &brush);
}
// ELLIPSE: its outline in the pen
0x0418 => {
if !pen.null {
let bounds = [s(3), s(2), s(1), s(0)];
let ring = ellipse_points(bounds, 0.0, std::f64::consts::TAU);
player.polyline(&ring, false, pen.width, pen.rgb);
}
}
// ARC, PIE: (yEnd, xEnd, yStart, xStart, bottom, right, top,
// left), drawn counter-clockwise; a pie's outline starts at the
// centre. (CHORD records are not read.)
0x0817 | 0x081A => {
let bounds = [s(7), s(6), s(5), s(4)];
let arc = arc_points(bounds, [s(3), s(2)], [s(1), s(0)]);
if arc.is_empty() {
continue;
}
if *function == 0x0817 {
if !pen.null {
player.polyline(&arc, false, pen.width, pen.rgb);
}
} else {
let centre = [
((bounds[0] + bounds[2]) as i64).div_euclid(2) as f64,
((bounds[1] + bounds[3]) as i64).div_euclid(2) as f64,
];
let ring: Vec<[f64; 2]> = std::iter::once(centre).chain(arc).collect();
player.shape(&ring, &pen, &brush);
}
}
// TEXTOUT (count, string, y, x) and EXTTEXTOUT (y, x, count,
// options, [rectangle], string)
0x0521 | 0x0A32 => {
let (count, text_at, (x, y)) = if *function == 0x0521 {
let count = s(0) as usize;
let words = count.div_ceil(2);
(count, 1, (s(2 + words), s(1 + words)))
} else {
let count = s(2) as usize;
let clipped = p.get(3).is_some_and(|o| o & 0x0006 != 0);
(count, if clipped { 8 } else { 4 }, (s(1), s(0)))
};
let mut raw = Vec::new();
for w in p.iter().skip(text_at) {
raw.extend(w.to_le_bytes());
}
raw.truncate(count);
let value: String = raw.iter().map(|b| char::from(*b)).collect();
if value.trim().is_empty() {
continue;
}
// The reference point is the cell's top; the baseline sits
// the font's ascent below it, and the text is four fifths
// of that ascent tall.
let rotation = font.escapement.to_radians();
let drop = ascent(&font);
let base = player.at(x + drop * rotation.sin(), y + drop * rotation.cos());
let face = Face {
name: font.face.clone(),
bold: font.weight >= 600,
italic: font.italic,
};
let index = match player.fonts.iter().position(|f| *f == face) {
Some(k) => k,
None => {
player.fonts.push(face);
player.fonts.len() - 1
}
};
let mut text = Text::new();
text.value = value;
text.insertion_point = base;
text.height = 0.8 * drop * scale;
text.rotation = rotation;
text.common.color = color(text_rgb);
player.text_fonts.push((player.entities.len(), index));
player.entities.push(EntityType::Text(text));
}
_ => {}
}
}
Some(Picture {
entities: player.entities,
fonts: player.fonts,
text_fonts: player.text_fonts,
})
}
-4
View File
@@ -3477,10 +3477,6 @@ pub(super) fn message_attribute(source: &str) -> Option<(&'static str, &'static
"Unavailable" => Some(("plugins", "unavailable")),
"Supported" => Some(("dgn-import", "supported")),
"By extension" => Some(("dgn-import", "by-extension")),
"ACIS solver available" => Some(("dgn-import", "acis-solver")),
"Export only" => Some(("dgn-import", "export-only")),
"ACIS bodies are read only inside drawings; SAT files cannot be imported." => Some(("dgn-import", "acis-reason")),
"STEP files are only written (STEPOUT), not read." => Some(("dgn-import", "step-reason")),
"OpenCAD Studio has no importer for this format." => Some(("dgn-import", "no-importer")),
"Recent:" => Some(("dgn-import", "recent")),
"2D / Underlay" => Some(("dgn-import", "group-2d")),
+1
View File
@@ -9,6 +9,7 @@ mod content_browser;
pub(crate) mod create_block;
mod design_center;
pub(crate) mod dgn_import;
pub(crate) mod tds_import;
pub(crate) mod edit_block;
pub(crate) mod image_transparency;
pub(crate) mod insert_block;
+132
View File
@@ -0,0 +1,132 @@
// 3D Studio import: when the import is set to ask what a mesh with several
// materials becomes, this asks for each such mesh in turn.
//
// <name> has multiple materials assigned. [Split/First/Material] <Split>:
// Select a material or [None] <None>:
use std::collections::HashMap;
use crate::command::{CadCommand, CmdOption, CmdResult, InputKind};
use crate::io::tds_import::{LayerMode, MultiMaterial};
/// What one 3D Studio import reads and how.
#[derive(Clone, Debug, PartialEq)]
pub struct TdsImportRequest {
pub path: String,
/// The objects to import, by name ("Global Settings" included).
pub selected: Vec<String>,
pub layers: LayerMode,
/// The choice for each mesh with several materials, by name.
pub multi: HashMap<String, MultiMaterial>,
/// Meshes keep only the vertices their faces use (the import splits or
/// asks), else the file's vertex list.
pub compact: bool,
}
pub struct TdsMaterialCommand {
request: TdsImportRequest,
/// The meshes still to ask about, with their materials.
queue: Vec<(String, Vec<String>)>,
choosing: bool,
}
impl TdsMaterialCommand {
pub fn new(request: TdsImportRequest, queue: Vec<(String, Vec<String>)>) -> Self {
Self {
request,
queue,
choosing: false,
}
}
fn answer(&mut self, choice: MultiMaterial) -> CmdResult {
if self.queue.is_empty() {
return CmdResult::Cancel;
}
let (name, _) = self.queue.remove(0);
self.request.multi.insert(name, choice);
self.choosing = false;
if self.queue.is_empty() {
CmdResult::TdsImport(self.request.clone())
} else {
CmdResult::NeedPoint
}
}
}
impl CadCommand for TdsMaterialCommand {
fn name(&self) -> &'static str {
"IMPORT"
}
fn prompt(&self) -> String {
match (self.choosing, self.queue.first()) {
(true, _) => "Select a material or [None] <None>:".to_string(),
(false, Some((name, _))) => {
format!("{name} has multiple materials assigned. [Split/First/Material] <Split>:")
}
(false, None) => String::new(),
}
}
fn options(&self) -> Vec<CmdOption> {
if self.choosing {
let mut options = vec![CmdOption::new("None", "N")];
if let Some((_, materials)) = self.queue.first() {
options.extend(materials.iter().map(|m| CmdOption::new(m, m)));
}
options
} else {
vec![
CmdOption::new("Split", "S"),
CmdOption::new("First", "F"),
CmdOption::new("Material", "M"),
]
}
}
fn input_kind(&self) -> InputKind {
if self.choosing {
InputKind::FreeText
} else {
InputKind::SingleToken
}
}
fn on_point(&mut self, _pt: glam::DVec3) -> CmdResult {
CmdResult::NeedPoint
}
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
let text = text.trim();
if self.choosing {
if text.is_empty() || text.eq_ignore_ascii_case("None") || text.eq_ignore_ascii_case("N") {
return Some(self.answer(MultiMaterial::Material(None)));
}
let found = self
.queue
.first()
.and_then(|(_, materials)| materials.iter().find(|m| m.eq_ignore_ascii_case(text)))
.cloned();
return Some(match found {
Some(material) => self.answer(MultiMaterial::Material(Some(material))),
None => CmdResult::ReportError("Invalid option keyword.".to_string()),
});
}
let t = text.to_ascii_uppercase();
Some(match t.as_str() {
"" => self.answer(MultiMaterial::Split),
_ if "SPLIT".starts_with(&t) => self.answer(MultiMaterial::Split),
_ if "FIRST".starts_with(&t) => self.answer(MultiMaterial::First),
_ if "MATERIAL".starts_with(&t) => {
self.choosing = true;
CmdResult::NeedPoint
}
_ => CmdResult::ReportError("Invalid option keyword.".to_string()),
})
}
fn on_enter(&mut self) -> CmdResult {
self.on_text_input("").unwrap_or(CmdResult::NeedPoint)
}
}
+26
View File
@@ -615,6 +615,17 @@ impl Scene {
true
}
/// The plan view's window: its centre and its width and height in world
/// units, and the world size of one screen pixel (zero before the first
/// frame).
pub fn view_window(&self) -> ([f64; 2], [f64; 2], f64) {
let aspect = f64::from(self.active_camera_aspect());
let camera = self.camera.borrow();
let height = 2.0 * f64::from(camera.ortho_size());
let pixel = self.world_per_pixel().map_or(0.0, f64::from);
([camera.target.x, camera.target.y], [height * aspect, height], pixel)
}
/// Aspect ratio of the active camera's actual render rectangle. Model
/// panes are separate shader widgets, so the full-canvas render aspect is
/// wrong whenever a tiled viewport is active.
@@ -1784,6 +1795,21 @@ impl Scene {
fold!(Some((lo.min(hi), lo.max(hi))));
}
}
// Solids inside blocks draw as one mesh instance per insert, placed
// where the insert puts them: that is the content the skipped insert
// marker stands for.
for set in self.instanced_block_meshes(
block,
None,
scale,
self.annotation_all_visible(),
None,
None,
) {
if let Some([x0, y0, z0, x1, y1, z1]) = set.instance_aabb {
fold!(Some((glam::DVec3::new(x0, y0, z0), glam::DVec3::new(x1, y1, z1))));
}
}
// Raster images, OLE frames and underlays draw as GPU quads; with
// their frames hidden they carry no wire outline at all.
+164
View File
@@ -0,0 +1,164 @@
//! ACIS text (SAT) files and kernel bodies as drawing objects.
//!
//! Each body of a file becomes one object: a closed solid a 3DSOLID, a sheet
//! whose faces all lie on planes a REGION, any other sheet a SURFACE — the
//! classes the ACIS import of the reference application produces.
use codec::entities::acis::{SatDocument, SatFace, Sidedness};
use codec::entities::{AcisData, Region, Solid3D, Surface, SurfaceKind};
use codec::EntityType;
/// What a body restores as.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum Class {
Solid,
Region,
Surface,
}
fn class(document: &SatDocument) -> Option<Class> {
let faces: Vec<SatFace<'_>> = document
.records
.iter()
.filter_map(SatFace::from_record)
.collect();
if faces.is_empty() {
return None;
}
if faces
.iter()
.all(|face| face.sidedness() != Sidedness::Double)
{
return Some(Class::Solid);
}
let planar = faces.iter().all(|face| {
face.surface()
.index()
.and_then(|at| document.record(at))
.is_some_and(|surface| surface.entity_type == "plane-surface")
});
Some(if planar { Class::Region } else { Class::Surface })
}
/// One body's document as its drawing object.
fn entity(document: &SatDocument) -> Option<EntityType> {
entity_as(document, class(document)?)
}
fn entity_as(document: &SatDocument, class: Class) -> Option<EntityType> {
Some(match class {
Class::Solid => {
let mut solid = Solid3D::new();
solid.set_sat_document(document);
EntityType::Solid3D(solid)
}
Class::Region => {
let mut region = Region::new();
region.set_sat_document(document);
EntityType::Region(region)
}
Class::Surface => {
let mut surface = Surface::new(SurfaceKind::Generic);
surface.acis_data = AcisData::from_sat(&document.to_sat_string());
EntityType::Surface(Box::new(surface))
}
})
}
/// The objects of an ACIS text file, one per body with faces; `None` when
/// the text is no ACIS data.
pub fn sat_entities(text: &str) -> Option<Vec<EntityType>> {
let document = SatDocument::parse(text).ok()?;
Some(document.split_bodies().iter().filter_map(entity).collect())
}
/// The value of an ACIS colour attribute: the index (0 by block), or the
/// index nearest a true colour.
fn attribute_index(color: codec::types::Color) -> i64 {
match color {
codec::types::Color::Index(index) => i64::from(index),
codec::types::Color::Rgb { r, g, b } => i64::from(codec::types::nearest_aci(r, g, b)),
_ => 0,
}
}
/// Hangs colour attributes on a record: a true colour first, then its
/// index, as imported models carry them.
fn paint_record(document: &mut codec::entities::acis::SatDocument, owner: usize, color: codec::types::Color) {
use codec::entities::acis::{SatPointer, SatRecord, SatToken};
let mut chain: Vec<(&str, i64)> = Vec::new();
if let codec::types::Color::Rgb { r, g, b } = color {
let packed = (0xC2u32 << 24) | (u32::from(r) << 16) | (u32::from(g) << 8) | u32::from(b);
chain.push(("truecolor-adesk-attrib", i64::from(packed as i32)));
}
chain.push(("color-adesk-attrib", attribute_index(color)));
let Some(existing) = document.record(owner).map(|record| record.attribute) else {
return;
};
let first = document.record_count() as i32;
let count = chain.len() as i32;
for (k, (kind, value)) in chain.into_iter().enumerate() {
let at = first + k as i32;
let next = if k as i32 + 1 < count { SatPointer::new(at + 1) } else { existing };
let previous = if k == 0 { SatPointer::NULL } else { SatPointer::new(at - 1) };
let mut record = SatRecord::new(-1, kind);
record.tokens = vec![
SatToken::Pointer(next),
SatToken::Pointer(previous),
SatToken::Pointer(SatPointer::new(owner as i32)),
SatToken::Integer(value),
];
document.add_record(record);
}
if let Some(record) = document.record_mut(owner) {
record.attribute = SatPointer::new(first);
}
}
/// A kernel body as its drawing object in `colour` (by block when `None`),
/// with the faces given a colour of their own carrying it — and the edges
/// bounding them too, as the reference modeler stores them. A `sheet` is a
/// SURFACE however flat it is.
pub fn painted_body_entity(
body: &kernel::brep::Body,
colour: Option<codec::types::Color>,
faces: &[Option<codec::types::Color>],
sheet: bool,
) -> Option<EntityType> {
let mut document = super::acis_export::solid_to_sat(body)?;
let base = colour.unwrap_or(codec::types::Color::ByBlock);
let own: std::collections::HashMap<kernel::brep::FaceKey, codec::types::Color> = body
.faces
.keys()
.zip(faces)
.filter_map(|(key, color)| Some((key, (*color)?)))
.collect();
// The writer puts faces and edges in the body's own order.
let face_records: Vec<usize> = (0..document.record_count())
.filter(|&at| document.record(at).is_some_and(|r| r.entity_type == "face"))
.collect();
let edge_records: Vec<usize> = (0..document.record_count())
.filter(|&at| document.record(at).is_some_and(|r| r.entity_type == "edge"))
.collect();
for (key, at) in body.faces.keys().zip(face_records) {
if let Some(color) = own.get(&key) {
paint_record(&mut document, at, *color);
}
}
for ((_, edge), at) in body.edges.iter().zip(edge_records) {
let bounding = edge.coedges.iter().find_map(|coedge| {
let ring = body.coedges.get(*coedge)?.owner;
own.get(&body.loops.get(ring)?.owner).copied()
});
if let Some(color) = bounding {
paint_record(&mut document, at, color);
}
}
let mut entity = if sheet {
entity_as(&document, Class::Surface)?
} else {
entity(&document)?
};
entity.common_mut().color = base;
Some(entity)
}
+12 -1
View File
@@ -70,13 +70,24 @@ pub fn tessellate_sat(
(owner >= 0 && handle > 0).then(|| (owner, codec::Handle::new(handle as u64)))
})
.collect();
// A true colour attribute outranks the index one beside it, which only
// holds its nearest index.
let face_colors: std::collections::HashMap<i32, [f32; 4]> = document
.records
.iter()
.filter(|record| record.entity_type == "color-adesk-attrib")
.chain(
document
.records
.iter()
.filter(|record| record.entity_type == "truecolor-adesk-attrib"),
)
.filter_map(|record| {
let owner = record.token_pointer(2)?.0;
let value = record.token(3)?.as_integer()?;
let mut value = record.token(3)?.as_integer()?;
if record.entity_type == "truecolor-adesk-attrib" {
value = (value & 0x00FF_FFFF) | 0x0100_0000;
}
let source = if (1..=255).contains(&value) {
codec::Color::from_index(value as i16)
} else if value > 257 {
+1
View File
@@ -1,5 +1,6 @@
pub mod acad_to_render;
pub mod acis_export;
pub mod acis_import;
pub mod acis_kernel;
pub mod dgn_linestyle;
pub mod proxy_graphics;
+12 -4
View File
@@ -1349,6 +1349,9 @@ impl Scene {
.map_err(|e| e.to_string())?;
entity_handles.push(handle);
}
// Solids, surfaces and meshes of a definition draw through their
// instanced block meshes, which only a tessellation pass creates.
self.refresh_meshes_for_handles(&entity_handles);
// Block defns don't render on their own, but the geometry cache must
// pick up the new definition so the interactive insert can preview it.
self.bump_geometry();
@@ -1391,12 +1394,14 @@ impl Scene {
block_end.common.owner_handle = br_handle;
let _ = self.document.add_entity(EntityType::BlockEnd(block_end));
let mut added = Vec::new();
for mut entity in entities {
Self::reset_clone_subhandles(&mut self.document, &mut entity);
entity.common_mut().handle = Handle::NULL;
entity.common_mut().owner_handle = br_handle;
let _ = self.document.add_entity(entity);
added.extend(self.document.add_entity(entity).ok());
}
self.refresh_meshes_for_handles(&added);
self.bump_geometry();
}
@@ -1446,18 +1451,21 @@ impl Scene {
})
.map(|e| e.common().handle)
.collect();
for h in owned {
self.document.remove_entity(h);
for h in &owned {
self.document.remove_entity(*h);
}
if let Some(EntityType::Block(block)) = self.document.get_entity_mut(block_handle) {
block.base_point = base_point;
}
// The old contents' meshes go with them; the new ones are built.
let mut changed = owned;
for mut entity in entities {
Self::reset_clone_subhandles(&mut self.document, &mut entity);
entity.common_mut().handle = Handle::NULL;
entity.common_mut().owner_handle = br_handle;
let _ = self.document.add_entity(entity);
changed.extend(self.document.add_entity(entity).ok());
}
self.refresh_meshes_for_handles(&changed);
self.bump_geometry();
Ok(())
}
+16
View File
@@ -292,6 +292,22 @@ fn face_id_weighted(family: &str, weight: fontdb::Weight) -> Option<fontdb::ID>
fonts().db.lock().unwrap().query(&query)
}
/// The file name (lower case) of the installed face of exactly `family` —
/// no stand-in family — in the bold and italic asked for, or `None`.
pub fn face_file(family: &str, bold: bool, italic: bool) -> Option<String> {
let db = fonts().db.lock().unwrap();
let id = db.query(&fontdb::Query {
families: &[fontdb::Family::Name(family)],
weight: if bold { fontdb::Weight::BOLD } else { fontdb::Weight::NORMAL },
style: if italic { fontdb::Style::Italic } else { fontdb::Style::Normal },
..Default::default()
})?;
match &db.face(id)?.source {
fontdb::Source::File(path) => Some(path.file_name()?.to_string_lossy().to_ascii_lowercase()),
_ => None,
}
}
/// Borrow the raw face bytes for `family` and run `f` over them. The byte slice
/// is only valid inside the closure, so callers extract everything they need
/// (e.g. flattened glyph outlines) before returning. `index` is the face index
+245 -19
View File
@@ -1,6 +1,8 @@
//! Import File (IMPORT: the format first, then the file, routed to the
//! format's importer) and DGN Import (DGNIMPORT: model, target drawing,
//! conversion units and the mapping setup's effect on the file).
//! format's importer), DGN Import (DGNIMPORT: model, target drawing,
//! conversion units and the mapping setup's effect on the file) and 3D Studio
//! Import (the objects of a .3ds file to bring in, their layers and what a
//! mesh with several materials becomes).
use iced::widget::{button, column, container, image, row, scrollable, text, text_input, Space};
use iced::{Background, Border, Element, Fill, Length, Theme};
@@ -34,6 +36,17 @@ pub enum ImportDialogMsg {
DgnExplode(bool),
DgnMappingTab(usize),
DgnOk,
// 3D Studio Import
TdsChange,
TdsPicked(Option<String>),
TdsCheck(usize, bool),
TdsAll,
TdsClear,
TdsFilter(usize),
TdsSearch(String),
TdsLayers(usize),
TdsMulti(usize),
TdsOk,
Help(&'static str),
}
@@ -50,10 +63,6 @@ pub enum Support {
Yes,
/// Any file: the importer follows the file's extension.
ByExtension,
/// SAT: ACIS bodies are read only inside drawings.
AcisSolverOnly,
/// STEP: written by STEPOUT, not read.
ExportOnly,
No,
}
@@ -87,9 +96,9 @@ pub const FORMATS: [ImportFormat; 21] = [
format("PDF Files", "*.pdf", &["pdf"], 0, Support::Yes),
format("MicroStation DGN", "*.dgn", &["dgn"], 0, Support::Yes),
format("All DGN Files", "*.*", &["*"], 0, Support::Yes),
format("Metafile", "*.wmf", &["wmf"], 0, Support::No),
format("3D Studio", "*.3ds", &["3ds"], 1, Support::No),
format("ACIS", "*.sat", &["sat"], 1, Support::AcisSolverOnly),
format("Metafile", "*.wmf", &["wmf"], 0, Support::Yes),
format("3D Studio", "*.3ds", &["3ds"], 1, Support::Yes),
format("ACIS", "*.sat", &["sat"], 1, Support::Yes),
format(
"CATIA V4",
"*.model; *.session; *.exp; *.dlv3",
@@ -104,7 +113,7 @@ pub const FORMATS: [ImportFormat; 21] = [
1,
Support::No,
),
format("IGES", "*.igs; *.iges", &["igs", "iges"], 1, Support::No),
format("IGES", "*.igs; *.iges", &["igs", "iges"], 1, Support::Yes),
format("Inventor", "*.ipt; *.iam", &["ipt", "iam"], 1, Support::No),
format("JT", "*.jt", &["jt"], 1, Support::No),
format("NX", "*.prt", &["prt"], 1, Support::No),
@@ -121,7 +130,7 @@ pub const FORMATS: [ImportFormat; 21] = [
1,
Support::No,
),
format("STEP", "*.ste; *.stp; *.step", &["ste", "stp", "step"], 1, Support::ExportOnly),
format("STEP", "*.ste; *.stp; *.step", &["ste", "stp", "step"], 1, Support::Yes),
format("All Files", "*.*", &["*"], 2, Support::ByExtension),
];
@@ -150,11 +159,29 @@ pub struct DgnImportState {
pub mapping: [Vec<(String, String)>; 4],
}
/// Both windows' working copies and the files imported this session.
/// The objects of a 3D Studio file and the import's choices.
pub struct TdsImportState {
pub path: String,
/// "Global Settings" first, then the file's objects by name: each name,
/// its kind (Mesh, Light, Camera or Global) and the materials it uses.
pub objects: Vec<(String, &'static str, usize)>,
pub materials: usize,
pub checked: Vec<bool>,
/// 0 all, 1 meshes, 2 lights, 3 cameras, 4 global.
pub filter: usize,
pub search: String,
/// 0 by object, 1 by material, 2 by object colour, 3 single layer.
pub layers: usize,
/// 0 always ask, 1 split by material, 2 first material, 3 no material.
pub multi: usize,
}
/// The windows' working copies and the files imported this session.
#[derive(Default)]
pub struct ImportDialogs {
pub file: Option<ImportFileState>,
pub dgn: Option<DgnImportState>,
pub tds: Option<TdsImportState>,
pub recent: Vec<String>,
}
@@ -178,13 +205,10 @@ fn badge<'a>(support: Support) -> Element<'a, Message> {
let (label, tone) = match support {
Support::Yes => (t!("Supported"), 0),
Support::ByExtension => (t!("By extension"), 2),
Support::AcisSolverOnly => (t!("ACIS solver available"), 1),
Support::ExportOnly => (t!("Export only"), 1),
Support::No => (t!("None"), 2),
};
let color = move |theme: &Theme| match tone {
0 => theme.palette().success.base.color,
1 => AMBER,
_ => theme.palette().background.base.text.scale_alpha(0.55),
};
container(
@@ -210,10 +234,6 @@ fn badge<'a>(support: Support) -> Element<'a, Message> {
pub fn unsupported_reason(support: Support) -> Option<std::borrow::Cow<'static, str>> {
match support {
Support::Yes | Support::ByExtension => None,
Support::AcisSolverOnly => Some(t!(
"ACIS bodies are read only inside drawings; SAT files cannot be imported."
)),
Support::ExportOnly => Some(t!("STEP files are only written (STEPOUT), not read.")),
Support::No => Some(t!("OpenCAD Studio has no importer for this format.")),
}
}
@@ -425,6 +445,212 @@ pub fn view_import_file<'a>(
.into()
}
/// One choice out of a few, as buttons stacked one above the other.
fn stacked<'a>(options: Vec<(String, bool, Message)>) -> Element<'a, Message> {
let buttons = options.into_iter().map(|(label, on, message)| {
button(text(label).size(11).width(Fill))
.on_press(message)
.style(button_style(on))
.padding([5, 10])
.width(Fill)
.into()
});
container(iced::widget::Column::with_children(buttons.collect::<Vec<_>>()).spacing(2))
.padding(2)
.width(Fill)
.style(well_style)
.into()
}
/// The kind of a 3D Studio object in the window's words.
fn tds_kind(kind: &str) -> String {
match kind {
"Mesh" => crate::tr!("import-3ds", "mesh"),
"Light" => crate::tr!("import-3ds", "light"),
"Camera" => crate::tr!("import-3ds", "camera"),
_ => crate::tr!("import-3ds", "general"),
}
}
pub fn view_tds_import<'a>(
state: &'a TdsImportState,
sizing: crate::ui::modal::ModalSizing,
) -> Element<'a, Message> {
let top = container(
row![
container(text(file_name(&state.path)).size(12))
.padding([4, 10])
.style(|theme: &Theme| container::Style {
border: Border {
width: 1.0,
radius: 12.0.into(),
color: theme.palette().primary.base.color,
},
..Default::default()
}),
text(crate::tr!("import-3ds", "summary", objects = (state.objects.len().saturating_sub(1) as i64), materials = (state.materials as i64)))
.size(11)
.style(muted_style)
.width(Fill),
button(text(crate::tr!("import-3ds", "change")).size(11))
.on_press(msg(ImportDialogMsg::TdsChange))
.style(button::text)
.padding([4, 6]),
]
.spacing(10)
.align_y(iced::Center),
)
.padding([8, 12])
.width(Fill)
.style(crate::ui::window::pdf_dialogs::card_style);
let kinds = ["", "Mesh", "Light", "Camera", "Global"];
let mut filters = row![].spacing(4).align_y(iced::Center);
for (k, label) in [crate::tr!("import-3ds", "all"), crate::tr!("import-3ds", "mesh"), crate::tr!("import-3ds", "light"), crate::tr!("import-3ds", "camera"), crate::tr!("import-3ds", "general")]
.into_iter()
.enumerate()
{
filters = filters.push(chip(label, state.filter == k, msg(ImportDialogMsg::TdsFilter(k))));
}
let search = state.search.trim().to_lowercase();
let mut rows = column![row![
Space::new().width(Length::Fixed(22.0)),
text(crate::tr!("import-3ds", "name")).size(11).style(muted_style).width(Fill),
text(crate::tr!("import-3ds", "type")).size(11).style(muted_style).width(Length::Fixed(150.0)),
]]
.spacing(2);
for (k, (name, kind, materials)) in state.objects.iter().enumerate() {
let global = *kind == "Global";
if state.filter != 0 && kinds[state.filter] != *kind {
continue;
}
if !search.is_empty() && !name.to_lowercase().contains(&search) {
continue;
}
let shown_name = if global { crate::tr!("import-3ds", "global") } else { name.clone() };
let shown_kind = if global {
String::new()
} else if *kind == "Mesh" {
format!("{} · {}", tds_kind(kind), crate::tr!("import-3ds", "materials", n = (*materials as i64)))
} else {
tds_kind(kind)
};
let on = state.checked.get(k).copied().unwrap_or(false);
rows = rows.push(
row![
iced::widget::checkbox(on)
.on_toggle(move |v| msg(ImportDialogMsg::TdsCheck(k, v)))
.size(14),
text(shown_name).size(12).width(Fill),
text(shown_kind).size(11).style(muted_style).width(Length::Fixed(150.0)),
]
.spacing(8)
.align_y(iced::Center),
);
}
let objects = card(
crate::tr!("import-3ds", "objects"),
column![
row![
filters,
Space::new().width(Fill),
text_input(crate::tr!("import-3ds", "search").as_ref(), &state.search)
.on_input(|s| msg(ImportDialogMsg::TdsSearch(s)))
.size(11)
.padding([4, 8])
.width(Length::Fixed(170.0))
.style(field_style),
]
.spacing(8)
.align_y(iced::Center),
container(scrollable(rows).height(Length::Fixed(300.0)))
.padding(6)
.width(Fill)
.style(well_style),
row![
button(text(crate::tr!("import-3ds", "select-all")).size(11))
.on_press(msg(ImportDialogMsg::TdsAll))
.style(button_style(false))
.padding([4, 10]),
button(text(crate::tr!("import-3ds", "clear")).size(11))
.on_press(msg(ImportDialogMsg::TdsClear))
.style(button_style(false))
.padding([4, 10]),
]
.spacing(6),
]
.spacing(8),
);
let layer_notes = [
crate::tr!("import-3ds", "note-object"),
crate::tr!("import-3ds", "note-material"),
crate::tr!("import-3ds", "note-color"),
crate::tr!("import-3ds", "note-single"),
];
let layers = card(
crate::tr!("import-3ds", "layers"),
column![
stacked(
[crate::tr!("import-3ds", "by-object"), crate::tr!("import-3ds", "by-material"), crate::tr!("import-3ds", "by-color"), crate::tr!("import-3ds", "single")]
.into_iter()
.enumerate()
.map(|(k, label)| (label, state.layers == k, msg(ImportDialogMsg::TdsLayers(k))))
.collect()
),
text(layer_notes[state.layers.min(3)].clone()).size(11).style(muted_style),
]
.spacing(8),
);
let multi = card(
crate::tr!("import-3ds", "multi"),
stacked(
[
crate::tr!("import-3ds", "ask"),
crate::tr!("import-3ds", "split"),
crate::tr!("import-3ds", "first"),
crate::tr!("import-3ds", "none"),
]
.into_iter()
.enumerate()
.map(|(k, label)| (label, state.multi == k, msg(ImportDialogMsg::TdsMulti(k))))
.collect(),
),
);
let any = state.checked.iter().any(|c| *c);
let mut actions = row![
button(text("?").size(12))
.on_press(msg(ImportDialogMsg::Help("3ds")))
.style(button_style(false))
.padding([5, 11]),
Space::new().width(Fill),
]
.spacing(6)
.align_y(iced::Center);
if !any {
actions = actions.push(text(crate::tr!("import-3ds", "reason")).size(11).style(muted_style));
}
actions = actions
.push(dialog_button(crate::tr!("import-3ds", "cancel"), Message::CloseModal, false))
.push(dialog_button_styled_opt(
crate::tr!("import-3ds", "import"),
any.then(|| msg(ImportDialogMsg::TdsOk)),
button::primary,
));
column![
top,
row![
container(objects).width(Length::FillPortion(3)),
column![layers, multi].spacing(10).width(Length::FillPortion(2)),
]
.spacing(10),
actions,
]
.spacing(10)
.padding([10, 12])
.width(sizing.width)
.into()
}
pub fn view_dgn_import<'a>(
state: &'a DgnImportState,
sizing: crate::ui::modal::ModalSizing,