forked from 1b-agent/opencadstudio-upstream
Hakan Seven
288ccff95a
Entity converters were casting WCS coordinates to f32 before the renderer subtracted world_offset, which destroyed sub-unit precision on drawings sitting at large coordinates (typical UTM-style CAD files). The multileader case made it visible — glyphs warped under rotation — but every entity that emits TruckObject::Lines/SegmentedLines/key_vertices/fill_tris was affected. Type changes (in src/scene/acad_to_truck.rs): - TruckObject::Lines / SegmentedLines: Vec<[f32; 3]> → Vec<[f64; 3]> - TruckEntity::key_vertices / fill_tris: f32 → f64 All ~17 producer files updated to keep WCS coordinates in f64 right up to the TruckEntity boundary. The consumer in scene/tessellate.rs now performs `(x - ox) as f32` (f64 subtract, then cast) for points, key_vertices, and fill_tris — preserving precision near the camera origin even when the drawing sits at million-unit coordinates. catmull_rom_pts (multileader spline) is now f64; the scene path widens its offset-relative f32 ctrl points to f64 around the call and narrows back at the output. Notes: - Table layout still uses glam::Vec3 (f32) internally; widened to f64 only at the TruckEntity boundary for type compatibility. Separate cleanup to switch its internal math to f64 is tracked. - snap_pts and tangent_geoms remain f32 — they are UI feedback (snap candidates, tangent hints) and the precision is sufficient there.
1657 lines
60 KiB
Rust
1657 lines
60 KiB
Rust
// Tessellation — convert acadrust EntityType to GPU-ready WireModel or MeshModel.
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//
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// Flow:
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// EntityType
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// ↓ acad_to_truck::convert()
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// TruckEntity { object: TruckObject, snap_pts, tangent_geoms, key_vertices }
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// ↓ truck_tess::tessellate_*()
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// TruckTessResult::Lines → WireModel
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// TruckTessResult::Point → WireModel (small cross)
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// TruckTessResult::Mesh → MeshModel
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// TruckObject::Text → one WireModel per glyph stroke (elevation from entity Z)
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//
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// Entities not handled by acad_to_truck (Viewport, Hatch, …) are tessellated
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// by the legacy geometry() path so nothing regresses.
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use crate::entities::multileader::{catmull_rom_pts, v_offset_for_attachment};
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use acadrust::entities::{
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Dimension, Leader, LeaderContentType, MultiLeader, MultiLeaderPathType, Text,
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TextAttachmentPointType,
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};
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use acadrust::types::{Color as AcadColor, Vector3};
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use acadrust::{CadDocument, EntityType, Handle};
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use glam::Vec3;
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use crate::scene::acad_to_truck::{convert, TruckObject};
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use crate::scene::mesh_model::MeshModel;
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use crate::scene::truck_tess::{
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self, tessellate_edge, tessellate_solid, tessellate_vertex, tessellate_wire, TruckTessResult,
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};
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use crate::scene::wire_model::{SnapHint, TangentGeom, WireModel};
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const TAU: f64 = std::f64::consts::TAU;
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// ── Colour helper ──────────────────────────────────────────────────────────
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/// Convert an acadrust Color (ACI index or true-color) to a GPU RGBA value.
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pub fn aci_to_rgba(color: &AcadColor) -> [f32; 4] {
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if let Some((r, g, b)) = color.rgb() {
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[r as f32 / 255.0, g as f32 / 255.0, b as f32 / 255.0, 1.0]
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} else {
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WireModel::WHITE
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}
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}
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// ── Public entry points ────────────────────────────────────────────────────
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/// Tessellate one entity into a WireModel.
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/// For Text/MText entities this produces one WireModel with all glyph strokes
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/// encoded as NaN-separated segments (wire_gpu skips NaN pairs).
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/// For Solid3D entities this returns an empty wire; use `tessellate_mesh` instead.
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pub fn tessellate(
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document: &CadDocument,
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handle: Handle,
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entity: &EntityType,
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selected: bool,
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entity_color: [f32; 4],
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pattern_length: f32,
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pattern: [f32; 8],
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line_weight_px: f32,
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world_offset: [f64; 3],
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anno_scale: f32,
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) -> WireModel {
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let color = if selected {
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WireModel::SELECTED
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} else {
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entity_color
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};
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let name = handle.value().to_string();
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// Determine effective annotation scale for this entity.
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// AutoCAD marks annotative objects with "AcAnnoPO" xdata (R2007+).
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// If no xdata at all: old file without annotation system → treat as annotative.
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// If xdata present but no "AcAnnoPO": R2007+ file, entity is non-annotative → no scaling.
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let anno_scale = {
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let xdata = &entity.common().extended_data;
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let is_annotative = if xdata.is_empty() {
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// Old DXF / no annotation metadata — treat as annotative.
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true
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} else {
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xdata.get_record("AcAnnoPO").is_some()
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};
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if is_annotative {
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anno_scale
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} else {
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1.0
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}
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};
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// MultiLeader is handled by scene/mod.rs since it emits multiple WireModels
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// (leader, text, frame, fill) with distinct colors.
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if let EntityType::Leader(leader) = entity {
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return tessellate_leader_single(
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handle,
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leader,
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selected,
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entity_color,
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line_weight_px,
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world_offset,
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anno_scale,
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);
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}
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// ── Try the truck path first ───────────────────────────────────────────
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if let Some(te) = convert(entity, document) {
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match te.object {
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// ── Text / MText: pre-tessellated glyph strokes ───────────────
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TruckObject::Text(stroke_groups) => {
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// Each TextStroke keeps its strokes in glyph-local space and
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// its world origin as f64. Subtract world_offset in f64 before
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// casting to f32 so large UTM coordinates don't crush precision.
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let [ox, oy, oz] = world_offset;
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let elev = entity_z(entity) - oz as f32;
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let mut points: Vec<[f32; 3]> = Vec::new();
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let mut first = true;
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// Annotation scale: scale glyph strokes relative to the text
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// insertion point (first group's origin) so multi-line MText
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// lines spread apart correctly as well as growing in size.
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let ref_origin = stroke_groups
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.first()
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.map(|g| g.origin)
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.unwrap_or([0.0, 0.0]);
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let ref_lx = (ref_origin[0] - ox) as f32;
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let ref_ly = (ref_origin[1] - oy) as f32;
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for group in &stroke_groups {
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let lx = (group.origin[0] - ox) as f32;
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let ly = (group.origin[1] - oy) as f32;
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let slx = (lx - ref_lx) * anno_scale + ref_lx;
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let sly = (ly - ref_ly) * anno_scale + ref_ly;
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for stroke in &group.strokes {
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if stroke.len() < 2 {
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continue;
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}
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if !first && !points.is_empty() {
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points.push([f32::NAN, f32::NAN, f32::NAN]);
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}
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first = false;
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for &[x, y] in stroke {
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points.push([x * anno_scale + slx, y * anno_scale + sly, elev]);
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}
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}
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}
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let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
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let [ox, oy, oz] = world_offset;
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let key_vertices: Vec<[f32; 3]> = te
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.key_vertices
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.into_iter()
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.map(|[x, y, z]| [(x - ox) as f32, (y - oy) as f32, (z - oz) as f32])
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.collect();
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return WireModel {
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name,
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points,
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color,
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selected,
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pattern_length: 0.0,
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pattern: [0.0; 8],
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line_weight_px,
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snap_pts,
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tangent_geoms: te.tangent_geoms,
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aci: 0,
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key_vertices,
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aabb: WireModel::UNBOUNDED_AABB,
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plinegen: true,
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vp_scissor: None,
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fill_tris: vec![],
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};
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}
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// ── Standard topology objects ─────────────────────────────────
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TruckObject::Point(v) => {
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let result = tessellate_vertex(&v, world_offset);
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match result {
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TruckTessResult::Point([x, y, z]) => {
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let s = 0.1_f32;
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let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
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let [ox, oy, oz] = world_offset;
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let key_vertices: Vec<[f32; 3]> = te
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.key_vertices
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.into_iter()
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.map(|[kx, ky, kz]| {
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[(kx - ox) as f32, (ky - oy) as f32, (kz - oz) as f32]
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})
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.collect();
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return WireModel {
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name,
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points: vec![
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[x - s, y, z],
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[x + s, y, z],
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[x, y - s, z],
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[x, y + s, z],
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],
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color,
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selected,
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pattern_length: 0.0,
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pattern: [0.0; 8],
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line_weight_px: 1.0,
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snap_pts,
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tangent_geoms: te.tangent_geoms,
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aci: 0,
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key_vertices,
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aabb: WireModel::UNBOUNDED_AABB,
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plinegen: true,
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vp_scissor: None,
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fill_tris: vec![],
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};
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}
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_ => {}
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}
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}
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TruckObject::Curve(e) => {
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if let TruckTessResult::Lines(points) = tessellate_edge(&e, world_offset) {
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let [ox, oy, oz] = world_offset;
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let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
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let key_vertices: Vec<[f32; 3]> = te
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.key_vertices
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.into_iter()
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.map(|[x, y, z]| [(x - ox) as f32, (y - oy) as f32, (z - oz) as f32])
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.collect();
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return WireModel {
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name,
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points,
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color,
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selected,
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pattern_length,
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pattern,
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line_weight_px,
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snap_pts,
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tangent_geoms: te.tangent_geoms,
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aci: 0,
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key_vertices,
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aabb: WireModel::UNBOUNDED_AABB,
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plinegen: true,
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vp_scissor: None,
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fill_tris: vec![],
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};
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}
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}
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TruckObject::Contour(w) => {
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if let TruckTessResult::Lines(points) = tessellate_wire(&w, world_offset) {
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let [ox, oy, oz] = world_offset;
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let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
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let key_vertices: Vec<[f32; 3]> = te
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.key_vertices
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.into_iter()
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.map(|[x, y, z]| [(x - ox) as f32, (y - oy) as f32, (z - oz) as f32])
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.collect();
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return WireModel {
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name,
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points,
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color,
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selected,
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pattern_length,
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pattern,
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line_weight_px,
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snap_pts,
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tangent_geoms: te.tangent_geoms,
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aci: 0,
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key_vertices,
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aabb: WireModel::UNBOUNDED_AABB,
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plinegen: true,
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vp_scissor: None,
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fill_tris: vec![],
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};
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}
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}
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TruckObject::Lines(points) => {
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// Points are world-space f64 from entity converters (polyline,
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// leader, mesh, solid2d, etc.). Subtract world_offset in f64
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// before casting to f32 so drawings at large UTM-style
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// coordinates keep sub-unit precision in the wire model.
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let [ox, oy, oz] = world_offset;
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let local_pts: Vec<[f32; 3]> = points
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.into_iter()
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.map(|[x, y, z]| {
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if x.is_nan() {
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[f32::NAN, f32::NAN, f32::NAN]
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} else {
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[(x - ox) as f32, (y - oy) as f32, (z - oz) as f32]
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}
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})
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.collect();
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let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
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let key_vertices: Vec<[f32; 3]> = te
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.key_vertices
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.into_iter()
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.map(|[x, y, z]| [(x - ox) as f32, (y - oy) as f32, (z - oz) as f32])
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.collect();
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let fill_tris: Vec<[f32; 3]> = te
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.fill_tris
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.into_iter()
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.map(|[x, y, z]| [(x - ox) as f32, (y - oy) as f32, (z - oz) as f32])
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.collect();
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return WireModel {
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name,
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points: local_pts,
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color,
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selected,
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pattern_length: 0.0,
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pattern: [0.0; 8],
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line_weight_px,
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snap_pts,
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tangent_geoms: te.tangent_geoms,
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aci: 0,
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key_vertices,
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aabb: WireModel::UNBOUNDED_AABB,
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plinegen: true,
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vp_scissor: None,
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fill_tris,
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};
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}
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TruckObject::SegmentedLines(points) => {
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let [ox, oy, oz] = world_offset;
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let local_pts: Vec<[f32; 3]> = points
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.into_iter()
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.map(|[x, y, z]| {
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if x.is_nan() {
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[f32::NAN, f32::NAN, f32::NAN]
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} else {
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[(x - ox) as f32, (y - oy) as f32, (z - oz) as f32]
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}
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})
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.collect();
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let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
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let key_vertices: Vec<[f32; 3]> = te
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.key_vertices
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.into_iter()
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.map(|[x, y, z]| [(x - ox) as f32, (y - oy) as f32, (z - oz) as f32])
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.collect();
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return WireModel {
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name,
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points: local_pts,
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color,
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selected,
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pattern_length,
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pattern,
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line_weight_px,
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snap_pts,
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tangent_geoms: te.tangent_geoms,
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aci: 0,
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key_vertices,
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plinegen: false,
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vp_scissor: None,
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aabb: WireModel::UNBOUNDED_AABB,
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fill_tris: vec![],
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};
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}
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TruckObject::Volume(_) => {
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// Solid3D / Region / Body → handled by tessellate_mesh().
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// As a wire fallback, render the pre-computed edge wires
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// stored in the entity when present (e.g. from SOLVIEW output
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// or when the SAT kernel cannot parse the ACIS data).
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let wire_pts = solid_wire_fallback(entity, world_offset);
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let mut wm = WireModel::solid(name, wire_pts, color, selected);
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// Add insertion snap at point_of_reference.
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let [ox, oy, oz] = world_offset;
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let por = match entity {
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EntityType::Solid3D(s) => Some(&s.point_of_reference),
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EntityType::Region(r) => Some(&r.point_of_reference),
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EntityType::Body(b) => Some(&b.point_of_reference),
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_ => None,
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};
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if let Some(p) = por {
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let sp = Vec3::new((p.x - ox) as f32, (p.y - oy) as f32, (p.z - oz) as f32);
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wm.snap_pts.push((sp, SnapHint::Insertion));
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}
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return wm;
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}
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}
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}
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// ── Legacy fallback for Viewport and other unhandled types ────────────
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let (points, snap_pts, tangent_geoms, key_vertices) = legacy_geometry(entity, world_offset);
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WireModel {
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name,
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points,
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color,
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selected,
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aci: 0,
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pattern_length,
|
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pattern,
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line_weight_px,
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snap_pts,
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tangent_geoms,
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key_vertices,
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aabb: WireModel::UNBOUNDED_AABB,
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plinegen: true,
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vp_scissor: None,
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fill_tris: vec![],
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}
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}
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|
|
pub fn tessellate_dimension(
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document: &CadDocument,
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handle: Handle,
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dim: &Dimension,
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selected: bool,
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entity_color: [f32; 4],
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line_weight_px: f32,
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world_offset: [f64; 3],
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anno_scale: f32,
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) -> Vec<WireModel> {
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let color = if selected {
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WireModel::SELECTED
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} else {
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entity_color
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};
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let name = handle.value().to_string();
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let style_name = &dim.base().style_name;
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let (arrow_size, dimexo, dimexe) = document
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.dim_styles
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.iter()
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.find(|s| {
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s.name.eq_ignore_ascii_case(style_name)
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|| (style_name.trim().is_empty() && s.name.eq_ignore_ascii_case("Standard"))
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})
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.map(|s| {
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let scale = (if s.dimscale > 1e-6 { s.dimscale } else { 1.0 }) * anno_scale as f64;
|
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(
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((s.dimasz * scale) as f32).max(0.001),
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(s.dimexo * scale) as f32,
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(s.dimexe * scale) as f32,
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)
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})
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.unwrap_or((0.12, 0.0, 0.0));
|
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let points = dimension_geometry(dim, arrow_size, dimexo, dimexe, world_offset);
|
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let key_vertices = points
|
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.iter()
|
|
.copied()
|
|
.filter(|p| !(p[0].is_nan() || p[1].is_nan() || p[2].is_nan()))
|
|
.collect();
|
|
|
|
let snap_pts = dimension_snap_pts(dim, world_offset);
|
|
|
|
let mut wires = vec![WireModel {
|
|
name: name.clone(),
|
|
points,
|
|
color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px,
|
|
snap_pts,
|
|
tangent_geoms: vec![],
|
|
key_vertices,
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris: vec![],
|
|
}];
|
|
|
|
if let Some(text) = dimension_text_entity(dim) {
|
|
let mut wire = tessellate(
|
|
document,
|
|
handle,
|
|
&EntityType::Text(text),
|
|
selected,
|
|
entity_color,
|
|
0.0,
|
|
[0.0; 8],
|
|
line_weight_px,
|
|
world_offset,
|
|
anno_scale,
|
|
);
|
|
wire.name = name;
|
|
wires.push(wire);
|
|
}
|
|
|
|
wires
|
|
}
|
|
|
|
fn tessellate_leader_single(
|
|
handle: Handle,
|
|
leader: &Leader,
|
|
selected: bool,
|
|
entity_color: [f32; 4],
|
|
line_weight_px: f32,
|
|
world_offset: [f64; 3],
|
|
anno_scale: f32,
|
|
) -> WireModel {
|
|
let color = if selected {
|
|
WireModel::SELECTED
|
|
} else {
|
|
entity_color
|
|
};
|
|
let name = handle.value().to_string();
|
|
let [ox, oy, oz] = world_offset;
|
|
let p3 =
|
|
|v: &Vector3| -> [f32; 3] { [(v.x - ox) as f32, (v.y - oy) as f32, (v.z - oz) as f32] };
|
|
let nan = [f32::NAN; 3];
|
|
|
|
let verts = &leader.vertices;
|
|
|
|
if verts.len() < 2 {
|
|
return WireModel {
|
|
name,
|
|
points: vec![],
|
|
color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px,
|
|
snap_pts: vec![],
|
|
tangent_geoms: vec![],
|
|
key_vertices: vec![],
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris: vec![],
|
|
};
|
|
}
|
|
|
|
let mut points: Vec<[f32; 3]> = verts.iter().map(|v| p3(v)).collect();
|
|
let mut tangents: Vec<TangentGeom> = Vec::new();
|
|
let key_vertices: Vec<[f32; 3]> = verts.iter().map(|v| p3(v)).collect();
|
|
|
|
for i in 0..verts.len().saturating_sub(1) {
|
|
tangents.push(TangentGeom::Line {
|
|
p1: p3(&verts[i]),
|
|
p2: p3(&verts[i + 1]),
|
|
});
|
|
}
|
|
|
|
if leader.arrow_enabled {
|
|
let tip = &verts[0];
|
|
let next = &verts[1];
|
|
let dx = (next.x - tip.x) as f32;
|
|
let dy = (next.y - tip.y) as f32;
|
|
let len = (dx * dx + dy * dy).sqrt().max(1e-9);
|
|
let (dx, dy) = (dx / len, dy / len);
|
|
let sz = (leader.text_height as f32).max(1.0) * 0.8 * anno_scale;
|
|
let a = std::f32::consts::PI / 6.0;
|
|
let (s, c) = a.sin_cos();
|
|
let tip_f = p3(tip);
|
|
points.push(nan);
|
|
points.push([
|
|
tip_f[0] + (dx * c - dy * s) * sz,
|
|
tip_f[1] + (dx * s + dy * c) * sz,
|
|
tip_f[2],
|
|
]);
|
|
points.push(tip_f);
|
|
points.push([
|
|
tip_f[0] + (dx * c + dy * s) * sz,
|
|
tip_f[1] + (-dx * s + dy * c) * sz,
|
|
tip_f[2],
|
|
]);
|
|
}
|
|
|
|
if leader.hookline_enabled {
|
|
let last = verts.last().unwrap();
|
|
let prev = &verts[verts.len() - 2];
|
|
let sign = if (last.x - prev.x) >= 0.0 {
|
|
1.0_f32
|
|
} else {
|
|
-1.0_f32
|
|
};
|
|
let land_len = leader.text_height as f32 * 1.5 * anno_scale;
|
|
let last_f = p3(last);
|
|
points.push(nan);
|
|
points.push(last_f);
|
|
points.push([last_f[0] + sign * land_len, last_f[1], last_f[2]]);
|
|
}
|
|
|
|
WireModel {
|
|
name,
|
|
points,
|
|
color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px,
|
|
snap_pts: vec![],
|
|
tangent_geoms: tangents,
|
|
key_vertices,
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris: vec![],
|
|
}
|
|
}
|
|
|
|
/// Convert an acadrust `Color` to RGBA, falling back to `inherited` for
|
|
/// `ByLayer` / `ByBlock` (assumes those are already resolved upstream).
|
|
fn color_or_inherit(c: &AcadColor, inherited: [f32; 4]) -> [f32; 4] {
|
|
match c.rgb() {
|
|
Some((r, g, b)) => [
|
|
r as f32 / 255.0,
|
|
g as f32 / 255.0,
|
|
b as f32 / 255.0,
|
|
inherited[3],
|
|
],
|
|
None => inherited,
|
|
}
|
|
}
|
|
|
|
pub fn tessellate_multileader(
|
|
document: &CadDocument,
|
|
handle: Handle,
|
|
ml: &MultiLeader,
|
|
selected: bool,
|
|
entity_color: [f32; 4],
|
|
line_weight_px: f32,
|
|
world_offset: [f64; 3],
|
|
anno_scale: f32,
|
|
) -> Vec<WireModel> {
|
|
let line_color = if selected {
|
|
WireModel::SELECTED
|
|
} else {
|
|
entity_color
|
|
};
|
|
let name = handle.value().to_string();
|
|
let nan = [f32::NAN; 3];
|
|
let [ox, oy, oz] = world_offset;
|
|
let p3 = |v: &acadrust::types::Vector3| -> [f32; 3] {
|
|
[(v.x - ox) as f32, (v.y - oy) as f32, (v.z - oz) as f32]
|
|
};
|
|
|
|
// ── Scaling ──────────────────────────────────────────────────────────────
|
|
// ml.scale_factor is always applied; anno_scale is only applied when the
|
|
// multileader is marked annotative.
|
|
let effective_scale = (ml.scale_factor as f32)
|
|
* if ml.enable_annotation_scale {
|
|
anno_scale
|
|
} else {
|
|
1.0
|
|
};
|
|
|
|
let arrow_size = ml.arrowhead_size as f32 * effective_scale;
|
|
let draw_arrow = arrow_size > 0.0;
|
|
let invisible = ml.path_type == MultiLeaderPathType::Invisible;
|
|
|
|
// ── Leader / arrow / dogleg points ───────────────────────────────────────
|
|
let mut points: Vec<[f32; 3]> = Vec::new();
|
|
let mut key_verts: Vec<[f32; 3]> = Vec::new();
|
|
let mut snap_pts: Vec<(Vec3, SnapHint)> = Vec::new();
|
|
let mut tangents: Vec<TangentGeom> = Vec::new();
|
|
let mut first = true;
|
|
|
|
for root in &ml.context.leader_roots {
|
|
let cp = &root.connection_point;
|
|
let cp_f = p3(cp);
|
|
snap_pts.push((Vec3::from(cp_f), SnapHint::Node));
|
|
|
|
for line in &root.lines {
|
|
if line.points.is_empty() {
|
|
continue;
|
|
}
|
|
|
|
if !invisible {
|
|
if !first {
|
|
points.push(nan);
|
|
}
|
|
first = false;
|
|
|
|
let mut ctrl: Vec<[f32; 3]> = line.points.iter().map(|p| p3(p)).collect();
|
|
let last_f = *ctrl.last().unwrap_or(&cp_f);
|
|
let dist = ((last_f[0] - cp_f[0]).powi(2) + (last_f[1] - cp_f[1]).powi(2)).sqrt();
|
|
if dist > 1e-9 {
|
|
ctrl.push(cp_f);
|
|
}
|
|
for &c in &ctrl {
|
|
key_verts.push(c);
|
|
snap_pts.push((Vec3::from(c), SnapHint::Node));
|
|
}
|
|
|
|
if ml.path_type == MultiLeaderPathType::Spline && ctrl.len() >= 2 {
|
|
let ctrl_f64: Vec<[f64; 3]> = ctrl
|
|
.iter()
|
|
.map(|c| [c[0] as f64, c[1] as f64, c[2] as f64])
|
|
.collect();
|
|
for pt in catmull_rom_pts(&ctrl_f64, 8) {
|
|
points.push([pt[0] as f32, pt[1] as f32, pt[2] as f32]);
|
|
}
|
|
} else {
|
|
for &c in &ctrl {
|
|
points.push(c);
|
|
}
|
|
}
|
|
for i in 0..ctrl.len().saturating_sub(1) {
|
|
tangents.push(TangentGeom::Line {
|
|
p1: ctrl[i],
|
|
p2: ctrl[i + 1],
|
|
});
|
|
}
|
|
}
|
|
|
|
if draw_arrow {
|
|
let tip = &line.points[0];
|
|
let tip_f = p3(tip);
|
|
let next = if line.points.len() >= 2 {
|
|
line.points[1]
|
|
} else {
|
|
*cp
|
|
};
|
|
let dx = (next.x - tip.x) as f32;
|
|
let dy = (next.y - tip.y) as f32;
|
|
let dl = (dx * dx + dy * dy).sqrt().max(1e-9);
|
|
let (dx, dy) = (dx / dl, dy / dl);
|
|
let a = std::f32::consts::PI / 6.0;
|
|
let (s, c) = a.sin_cos();
|
|
points.push(nan);
|
|
points.push([
|
|
tip_f[0] + (dx * c - dy * s) * arrow_size,
|
|
tip_f[1] + (dx * s + dy * c) * arrow_size,
|
|
tip_f[2],
|
|
]);
|
|
points.push(tip_f);
|
|
points.push([
|
|
tip_f[0] + (dx * c + dy * s) * arrow_size,
|
|
tip_f[1] + (-dx * s + dy * c) * arrow_size,
|
|
tip_f[2],
|
|
]);
|
|
}
|
|
}
|
|
|
|
if ml.enable_landing && ml.enable_dogleg && ml.dogleg_length > 0.0 {
|
|
let dir = &root.direction;
|
|
let dl = (dir.x * dir.x + dir.y * dir.y).sqrt().max(1e-9);
|
|
let d = ml.dogleg_length * effective_scale as f64;
|
|
points.push(nan);
|
|
points.push(cp_f);
|
|
points.push([
|
|
(cp.x + dir.x / dl * d - ox) as f32,
|
|
(cp.y + dir.y / dl * d - oy) as f32,
|
|
cp_f[2],
|
|
]);
|
|
}
|
|
}
|
|
|
|
// The leader/arrow/dogleg wire goes out as a single WireModel. Text, frame,
|
|
// and background fill (each with their own color) are appended as separate
|
|
// WireModels so the renderer respects per-piece coloring.
|
|
let mut wires: Vec<WireModel> = Vec::new();
|
|
wires.push(WireModel {
|
|
name: name.clone(),
|
|
points,
|
|
color: line_color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px,
|
|
snap_pts,
|
|
tangent_geoms: tangents,
|
|
key_vertices: key_verts,
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris: vec![],
|
|
});
|
|
|
|
// ── Text strokes / frame / background fill ──────────────────────────────
|
|
// Strip inline format codes, split / word-wrap into lines, then place each
|
|
// line according to text_attachment_point (horizontal) and
|
|
// text_left_attachment (vertical), with text_rotation/text_direction applied.
|
|
if ml.content_type == LeaderContentType::MText && !ml.context.text_string.is_empty() {
|
|
let ctx = &ml.context;
|
|
let raw_height = if ctx.text_height > 0.0 {
|
|
ctx.text_height
|
|
} else {
|
|
ml.text_height
|
|
} as f32;
|
|
let height = raw_height * effective_scale;
|
|
|
|
let ins = &ctx.text_location;
|
|
// Subtract world_offset in f64 before casting to f32: drawings often
|
|
// sit at large absolute coordinates and casting first then subtracting
|
|
// throws away the precision needed for the rotated sub-glyph offsets.
|
|
let local_ins_x = (ins.x - ox) as f32;
|
|
let local_ins_y = (ins.y - oy) as f32;
|
|
let z = (ins.z - oz) as f32;
|
|
|
|
// Rotation: prefer text_direction (transforms survive rotations / mirrors
|
|
// when acadrust updates it) and fall back to text_rotation.
|
|
let td = ctx.text_direction;
|
|
let rot = if td.x.abs() > 1e-9 || td.y.abs() > 1e-9 {
|
|
(td.y as f32).atan2(td.x as f32)
|
|
} else {
|
|
ctx.text_rotation as f32
|
|
};
|
|
let (cos_r, sin_r) = (rot.cos(), rot.sin());
|
|
|
|
// Resolve text style via handle when available, falling back to STANDARD.
|
|
let style_name = ctx
|
|
.text_style_handle
|
|
.as_ref()
|
|
.and_then(|h| {
|
|
document
|
|
.text_styles
|
|
.iter()
|
|
.find(|s| s.handle == *h)
|
|
.map(|s| s.name.clone())
|
|
})
|
|
.unwrap_or_else(|| "STANDARD".to_string());
|
|
let style = crate::entities::text_support::resolve_text_style(&style_name, document);
|
|
let font_name = style.font_name;
|
|
let font = crate::scene::cxf::get_font(&font_name);
|
|
let width_factor = style.width_factor.max(0.01);
|
|
let oblique = style.oblique_angle;
|
|
|
|
// Strip MText format codes (e.g. `{\fArial Black|b0|i0|c162|p34;...}`),
|
|
// then split on \P / \n / \N and optionally word-wrap to text_width.
|
|
let plain = crate::entities::text_support::strip_mtext_codes(&ctx.text_string);
|
|
let explicit_lines = crate::entities::text_support::split_mtext_lines(&plain);
|
|
let lines: Vec<String> = if ctx.text_width > 0.0 {
|
|
let scale = height / 9.0 * width_factor;
|
|
let max_w = ctx.text_width as f32 * effective_scale;
|
|
explicit_lines
|
|
.iter()
|
|
.flat_map(|line| {
|
|
crate::entities::text_support::word_wrap(line, max_w, scale, font)
|
|
})
|
|
.collect()
|
|
} else {
|
|
explicit_lines
|
|
};
|
|
|
|
let ls_factor = if ctx.line_spacing_factor > 0.0 {
|
|
ctx.line_spacing_factor as f32
|
|
} else {
|
|
1.0
|
|
};
|
|
let line_h = height * ls_factor * (5.0 / 3.0) * font.line_spacing;
|
|
let n_lines = lines.len().max(1) as f32;
|
|
|
|
let h_anchor = match ctx.text_attachment_point {
|
|
TextAttachmentPointType::Left => 0.0_f32,
|
|
TextAttachmentPointType::Center => 0.5,
|
|
TextAttachmentPointType::Right => 1.0,
|
|
};
|
|
// Vertical anchor: use text_left_attachment (matches the leader-to-text
|
|
// attachment convention for the common case of left-side leaders).
|
|
let v_offset =
|
|
v_offset_for_attachment(ctx.text_left_attachment, n_lines, height, line_h);
|
|
|
|
let scale = height / 9.0 * width_factor;
|
|
let line_widths: Vec<f32> = lines
|
|
.iter()
|
|
.map(|line| crate::entities::text_support::measure_mtext_chars(line, scale, font))
|
|
.collect();
|
|
let max_line_w = line_widths.iter().cloned().fold(0.0_f32, f32::max);
|
|
|
|
// Resolve text color (falls back to entity color for ByLayer / ByBlock).
|
|
let text_color = if selected {
|
|
line_color
|
|
} else {
|
|
color_or_inherit(&ctx.text_color, entity_color)
|
|
};
|
|
|
|
// Build per-line stroke points in WCS.
|
|
let mut text_points: Vec<[f32; 3]> = Vec::new();
|
|
for (i, line) in lines.iter().enumerate() {
|
|
let li = i as f32;
|
|
let line_y_local = -li * line_h + v_offset;
|
|
let line_w = line_widths[i];
|
|
let h_shift_local = -line_w * h_anchor;
|
|
let wcs_dx = h_shift_local * cos_r - line_y_local * sin_r;
|
|
let wcs_dy = h_shift_local * sin_r + line_y_local * cos_r;
|
|
// Origin already in offset-relative space — tessellator will rotate
|
|
// glyph offsets around it and produce points directly in render space.
|
|
let origin = [local_ins_x + wcs_dx, local_ins_y + wcs_dy];
|
|
let strokes = crate::scene::cxf::tessellate_text_ex(
|
|
origin,
|
|
height,
|
|
rot,
|
|
width_factor,
|
|
oblique,
|
|
&font_name,
|
|
line,
|
|
);
|
|
for stroke in &strokes {
|
|
if stroke.len() < 2 {
|
|
continue;
|
|
}
|
|
text_points.push(nan);
|
|
for &[x, y] in stroke {
|
|
text_points.push([x, y, z]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if !text_points.is_empty() {
|
|
wires.push(WireModel {
|
|
name: name.clone(),
|
|
points: text_points,
|
|
color: text_color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px,
|
|
snap_pts: vec![(
|
|
Vec3::new(local_ins_x, local_ins_y, z),
|
|
SnapHint::Node,
|
|
)],
|
|
tangent_geoms: vec![],
|
|
key_vertices: vec![],
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris: vec![],
|
|
});
|
|
}
|
|
|
|
// Text frame / background-fill rectangle in local frame, then rotated to WCS.
|
|
if ml.text_frame || ctx.background_fill_enabled {
|
|
// Visual gap so the frame/fill doesn't touch glyph caps.
|
|
let pad = height * 0.25;
|
|
let block_top = v_offset + height + pad;
|
|
let block_bottom = v_offset - (n_lines - 1.0) * line_h - pad;
|
|
let block_left = -max_line_w * h_anchor - pad;
|
|
let block_right = max_line_w * (1.0 - h_anchor) + pad;
|
|
let local_corners: [[f32; 2]; 4] = [
|
|
[block_left, block_bottom],
|
|
[block_right, block_bottom],
|
|
[block_right, block_top],
|
|
[block_left, block_top],
|
|
];
|
|
let wcs_corners: [[f32; 3]; 4] = std::array::from_fn(|i| {
|
|
let lx = local_corners[i][0];
|
|
let ly = local_corners[i][1];
|
|
let wx = local_ins_x + lx * cos_r - ly * sin_r;
|
|
let wy = local_ins_y + lx * sin_r + ly * cos_r;
|
|
[wx, wy, z]
|
|
});
|
|
|
|
// Background fill — emit two triangles; renders under the text strokes.
|
|
if ctx.background_fill_enabled {
|
|
let fill_color = if selected {
|
|
line_color
|
|
} else {
|
|
color_or_inherit(&ctx.background_fill_color, entity_color)
|
|
};
|
|
let fill_tris: Vec<[f32; 3]> = vec![
|
|
wcs_corners[0],
|
|
wcs_corners[1],
|
|
wcs_corners[2],
|
|
wcs_corners[0],
|
|
wcs_corners[2],
|
|
wcs_corners[3],
|
|
];
|
|
wires.push(WireModel {
|
|
name: name.clone(),
|
|
points: vec![],
|
|
color: fill_color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px: 1.0,
|
|
snap_pts: vec![],
|
|
tangent_geoms: vec![],
|
|
key_vertices: vec![],
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris,
|
|
});
|
|
}
|
|
|
|
// Text frame — closed rectangle, matches text color.
|
|
if ml.text_frame {
|
|
let frame_points: Vec<[f32; 3]> = vec![
|
|
wcs_corners[0],
|
|
wcs_corners[1],
|
|
wcs_corners[2],
|
|
wcs_corners[3],
|
|
wcs_corners[0],
|
|
];
|
|
wires.push(WireModel {
|
|
name,
|
|
points: frame_points,
|
|
color: text_color,
|
|
selected,
|
|
aci: 0,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px,
|
|
snap_pts: vec![],
|
|
tangent_geoms: vec![],
|
|
key_vertices: vec![],
|
|
aabb: WireModel::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
vp_scissor: None,
|
|
fill_tris: vec![],
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
wires
|
|
}
|
|
|
|
/// Tessellate a Solid3D entity into a MeshModel (truck Shell/Solid path).
|
|
#[allow(dead_code)]
|
|
pub fn tessellate_mesh(
|
|
document: &CadDocument,
|
|
handle: Handle,
|
|
entity: &EntityType,
|
|
selected: bool,
|
|
color: [f32; 4],
|
|
world_offset: [f64; 3],
|
|
) -> Option<MeshModel> {
|
|
let te = convert(entity, document)?;
|
|
let result = match te.object {
|
|
TruckObject::Volume(solid) => tessellate_solid(&solid, world_offset),
|
|
_ => return None,
|
|
};
|
|
truck_tess::tess_to_mesh_model(
|
|
result,
|
|
handle.value().to_string(),
|
|
if selected { MeshModel::SELECTED } else { color },
|
|
selected,
|
|
)
|
|
}
|
|
|
|
// ── Entity Z helper ───────────────────────────────────────────────────────
|
|
|
|
/// Extract the Z elevation from a text/mtext entity.
|
|
fn entity_z(entity: &EntityType) -> f32 {
|
|
match entity {
|
|
EntityType::Text(t) => t.insertion_point.z as f32,
|
|
EntityType::MText(t) => t.insertion_point.z as f32,
|
|
_ => 0.0,
|
|
}
|
|
}
|
|
|
|
// ── Legacy geometry (Viewport, Hatch outline, unrecognised) ───────────────
|
|
|
|
type Geometry = (
|
|
Vec<[f32; 3]>,
|
|
Vec<(Vec3, SnapHint)>,
|
|
Vec<TangentGeom>,
|
|
Vec<[f32; 3]>,
|
|
);
|
|
|
|
fn legacy_geometry(entity: &EntityType, world_offset: [f64; 3]) -> Geometry {
|
|
let [ox, oy, oz] = world_offset;
|
|
match entity {
|
|
EntityType::Viewport(vp) => {
|
|
let cx = (vp.center.x - ox) as f32;
|
|
let cy = (vp.center.y - oy) as f32;
|
|
let cz = (vp.center.z - oz) as f32;
|
|
let hw = (vp.width / 2.0) as f32;
|
|
let hh = (vp.height / 2.0) as f32;
|
|
let pts = vec![
|
|
[cx - hw, cy - hh, cz],
|
|
[cx + hw, cy - hh, cz],
|
|
[cx + hw, cy + hh, cz],
|
|
[cx - hw, cy + hh, cz],
|
|
[cx - hw, cy - hh, cz],
|
|
];
|
|
(pts, vec![], vec![], vec![])
|
|
}
|
|
EntityType::Insert(ins) => {
|
|
let ip = Vec3::new(
|
|
(ins.insert_point.x - ox) as f32,
|
|
(ins.insert_point.y - oy) as f32,
|
|
(ins.insert_point.z - oz) as f32,
|
|
);
|
|
let s = 0.1_f32;
|
|
let pts = vec![
|
|
[ip.x - s, ip.y, ip.z],
|
|
[ip.x + s, ip.y, ip.z],
|
|
[ip.x, ip.y - s, ip.z],
|
|
[ip.x, ip.y + s, ip.z],
|
|
];
|
|
(pts, vec![(ip, SnapHint::Insertion)], vec![], vec![])
|
|
}
|
|
EntityType::Hatch(h) => {
|
|
let normal = (h.normal.x, h.normal.y, h.normal.z);
|
|
// Convert a 2D OCS hatch boundary point to WCS, then subtract world_offset.
|
|
let to_wcs = |x: f64, y: f64| -> [f32; 3] {
|
|
let (wx, wy, wz) =
|
|
crate::scene::transform::ocs_point_to_wcs((x, y, h.elevation), normal);
|
|
[(wx - ox) as f32, (wy - oy) as f32, (wz - oz) as f32]
|
|
};
|
|
let mut pts: Vec<[f32; 3]> = Vec::new();
|
|
let mut key_verts: Vec<[f32; 3]> = Vec::new();
|
|
let mut snap_pts: Vec<(Vec3, SnapHint)> = Vec::new();
|
|
for path in &h.paths {
|
|
for edge in &path.edges {
|
|
match edge {
|
|
acadrust::entities::BoundaryEdge::Polyline(poly) => {
|
|
let start_idx = pts.len();
|
|
for v in &poly.vertices {
|
|
let p = to_wcs(v.x, v.y);
|
|
pts.push(p);
|
|
key_verts.push(p);
|
|
}
|
|
if let Some(first) = pts.get(start_idx).cloned() {
|
|
pts.push(first);
|
|
}
|
|
}
|
|
acadrust::entities::BoundaryEdge::Line(ln) => {
|
|
let p0 = to_wcs(ln.start.x, ln.start.y);
|
|
let p1 = to_wcs(ln.end.x, ln.end.y);
|
|
if !pts.is_empty() {
|
|
pts.push([f32::NAN; 3]);
|
|
}
|
|
pts.push(p0);
|
|
pts.push(p1);
|
|
key_verts.push(p0);
|
|
key_verts.push(p1);
|
|
}
|
|
acadrust::entities::BoundaryEdge::CircularArc(arc) => {
|
|
let sa = arc.start_angle;
|
|
let ea = arc.end_angle;
|
|
let ccw = arc.counter_clockwise;
|
|
let (sa, ea) = if ccw { (sa, ea) } else { (TAU - sa, TAU - ea) };
|
|
let span = ea - sa;
|
|
let segs = ((span.abs() / TAU) * 32.0).ceil().max(4.0) as u32;
|
|
if !pts.is_empty() {
|
|
pts.push([f32::NAN; 3]);
|
|
}
|
|
for i in 0..=segs {
|
|
let t = sa + span * (i as f64 / segs as f64);
|
|
let p = to_wcs(
|
|
arc.center.x + arc.radius * t.cos() as f64,
|
|
arc.center.y + arc.radius * t.sin() as f64,
|
|
);
|
|
pts.push(p);
|
|
if i == 0 || i == segs {
|
|
key_verts.push(p);
|
|
}
|
|
}
|
|
snap_pts.push((
|
|
Vec3::from(to_wcs(arc.center.x, arc.center.y)),
|
|
SnapHint::Center,
|
|
));
|
|
}
|
|
acadrust::entities::BoundaryEdge::EllipticArc(ell) => {
|
|
let r_maj = ((ell.major_axis_endpoint.x * ell.major_axis_endpoint.x
|
|
+ ell.major_axis_endpoint.y * ell.major_axis_endpoint.y)
|
|
.sqrt()) as f32;
|
|
let r_min = r_maj * ell.minor_axis_ratio as f32;
|
|
let rot = (ell.major_axis_endpoint.y as f32)
|
|
.atan2(ell.major_axis_endpoint.x as f32);
|
|
const TAU: f32 = std::f32::consts::TAU;
|
|
let ccw = ell.counter_clockwise;
|
|
let sa = ell.start_angle as f32;
|
|
let ea = ell.end_angle as f32;
|
|
let (sa, ea) = if ccw {
|
|
(sa, ea)
|
|
} else {
|
|
(TAU - sa, TAU - ea)
|
|
};
|
|
let span = ea - sa;
|
|
let segs =
|
|
((span.abs() / TAU) * 32.0).ceil().max(4.0) as u32;
|
|
if !pts.is_empty() {
|
|
pts.push([f32::NAN; 3]);
|
|
}
|
|
for i in 0..=segs {
|
|
let t = sa + span * (i as f32 / segs as f32);
|
|
let lx = r_maj * t.cos();
|
|
let ly = r_min * t.sin();
|
|
let ocs_x = ell.center.x + (lx * rot.cos() - ly * rot.sin()) as f64;
|
|
let ocs_y = ell.center.y + (lx * rot.sin() + ly * rot.cos()) as f64;
|
|
let p = to_wcs(ocs_x, ocs_y);
|
|
pts.push(p);
|
|
if i == 0 || i == segs {
|
|
key_verts.push(p);
|
|
}
|
|
}
|
|
snap_pts.push((
|
|
Vec3::from(to_wcs(ell.center.x, ell.center.y)),
|
|
SnapHint::Center,
|
|
));
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
if pts.is_empty() {
|
|
pts = vec![[0.0, 0.0, 0.0], [0.0, 0.0, 0.0]];
|
|
}
|
|
(pts, snap_pts, vec![], key_verts)
|
|
}
|
|
EntityType::Ole2Frame(ole) => {
|
|
// OLE objects carry a bounding rectangle in model space.
|
|
// Render a simple X-through-rectangle placeholder.
|
|
let x0 = (ole.upper_left_corner.x - ox) as f32;
|
|
let y0 = (ole.lower_right_corner.y - oy) as f32;
|
|
let x1 = (ole.lower_right_corner.x - ox) as f32;
|
|
let y1 = (ole.upper_left_corner.y - oy) as f32;
|
|
let z = (ole.upper_left_corner.z - oz) as f32;
|
|
if (x1 - x0).abs() < 1e-6 && (y1 - y0).abs() < 1e-6 {
|
|
// Degenerate / unknown size — show a small cross.
|
|
let s = 0.5_f32;
|
|
return (vec![[-s, 0.0, 0.0], [s, 0.0, 0.0]], vec![], vec![], vec![]);
|
|
}
|
|
let pts = vec![
|
|
// Outer rectangle
|
|
[x0, y0, z],
|
|
[x1, y0, z],
|
|
[x1, y0, z],
|
|
[x1, y1, z],
|
|
[x1, y1, z],
|
|
[x0, y1, z],
|
|
[x0, y1, z],
|
|
[x0, y0, z],
|
|
// Diagonal X
|
|
[x0, y0, z],
|
|
[x1, y1, z],
|
|
[f32::NAN, f32::NAN, f32::NAN],
|
|
[x1, y0, z],
|
|
[x0, y1, z],
|
|
];
|
|
(pts, vec![], vec![], vec![[x0, y0, z], [x1, y1, z]])
|
|
}
|
|
_ => {
|
|
let s = 0.5_f32;
|
|
(vec![[-s, 0.0, 0.0], [s, 0.0, 0.0]], vec![], vec![], vec![])
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Extract pre-computed edge-wire points from Solid3D / Region / Body entities.
|
|
///
|
|
/// AutoCAD stores explicit wire geometry (from SOLVIEW / 3DPLOT) alongside the
|
|
/// ACIS data. We use this as a visible fallback when the SAT tessellator
|
|
/// produces no mesh (e.g. binary SAB data or unsupported geometry).
|
|
fn solid_wire_fallback(entity: &EntityType, world_offset: [f64; 3]) -> Vec<[f32; 3]> {
|
|
let [ox, oy, oz] = world_offset;
|
|
let wires: &[acadrust::entities::Wire] = match entity {
|
|
EntityType::Solid3D(s) => &s.wires,
|
|
EntityType::Region(r) => &r.wires,
|
|
EntityType::Body(b) => &b.wires,
|
|
_ => return vec![],
|
|
};
|
|
|
|
if wires.is_empty() {
|
|
return vec![];
|
|
}
|
|
|
|
let mut pts: Vec<[f32; 3]> = Vec::new();
|
|
for wire in wires {
|
|
if wire.points.len() < 2 {
|
|
continue;
|
|
}
|
|
for v in &wire.points {
|
|
pts.push([(v.x - ox) as f32, (v.y - oy) as f32, (v.z - oz) as f32]);
|
|
}
|
|
// NaN sentinel separates distinct wire segments.
|
|
pts.push([f32::NAN, f32::NAN, f32::NAN]);
|
|
}
|
|
pts
|
|
}
|
|
|
|
fn dimension_geometry(
|
|
dim: &Dimension,
|
|
arrow_size: f32,
|
|
dimexo: f32,
|
|
dimexe: f32,
|
|
world_offset: [f64; 3],
|
|
) -> Vec<[f32; 3]> {
|
|
let lv = |v| vec3_local(v, world_offset);
|
|
let mut points = Vec::new();
|
|
match dim {
|
|
Dimension::Aligned(d) => {
|
|
let first = lv(d.first_point);
|
|
let second = lv(d.second_point);
|
|
let def = lv(d.definition_point);
|
|
let axis = normalized_or(second - first, Vec3::X);
|
|
append_linear_dimension(
|
|
&mut points,
|
|
first,
|
|
second,
|
|
def,
|
|
axis,
|
|
arrow_size,
|
|
dimexo,
|
|
dimexe,
|
|
);
|
|
}
|
|
Dimension::Linear(d) => {
|
|
let first = lv(d.first_point);
|
|
let second = lv(d.second_point);
|
|
let def = lv(d.definition_point);
|
|
let axis = Vec3::new(d.rotation.cos() as f32, d.rotation.sin() as f32, 0.0);
|
|
append_linear_dimension(
|
|
&mut points,
|
|
first,
|
|
second,
|
|
def,
|
|
normalized_or(axis, Vec3::X),
|
|
arrow_size,
|
|
dimexo,
|
|
dimexe,
|
|
);
|
|
}
|
|
Dimension::Radius(d) => {
|
|
let center = lv(d.angle_vertex);
|
|
let point = lv(d.definition_point);
|
|
let text = dimension_text_position(dim, world_offset);
|
|
add_segment(&mut points, center, point);
|
|
add_segment(&mut points, point, text);
|
|
append_arrow(
|
|
&mut points,
|
|
point,
|
|
normalized_or(center - point, Vec3::X),
|
|
arrow_size,
|
|
);
|
|
}
|
|
Dimension::Diameter(d) => {
|
|
let p1 = lv(d.angle_vertex);
|
|
let p2 = lv(d.definition_point);
|
|
add_segment(&mut points, p1, p2);
|
|
append_arrow(&mut points, p1, normalized_or(p2 - p1, Vec3::X), arrow_size);
|
|
append_arrow(&mut points, p2, normalized_or(p1 - p2, Vec3::X), arrow_size);
|
|
}
|
|
Dimension::Angular2Ln(d) => {
|
|
append_angular_dimension(
|
|
&mut points,
|
|
lv(d.angle_vertex),
|
|
lv(d.first_point),
|
|
lv(d.second_point),
|
|
lv(d.dimension_arc),
|
|
arrow_size,
|
|
);
|
|
}
|
|
Dimension::Angular3Pt(d) => {
|
|
append_angular_dimension(
|
|
&mut points,
|
|
lv(d.angle_vertex),
|
|
lv(d.first_point),
|
|
lv(d.second_point),
|
|
lv(d.definition_point),
|
|
arrow_size,
|
|
);
|
|
}
|
|
Dimension::Ordinate(d) => {
|
|
add_segment(&mut points, lv(d.feature_location), lv(d.definition_point));
|
|
add_segment(&mut points, lv(d.definition_point), lv(d.leader_endpoint));
|
|
}
|
|
}
|
|
points
|
|
}
|
|
|
|
fn append_linear_dimension(
|
|
points: &mut Vec<[f32; 3]>,
|
|
first: Vec3,
|
|
second: Vec3,
|
|
def: Vec3,
|
|
axis: Vec3,
|
|
arrow_size: f32,
|
|
dimexo: f32,
|
|
dimexe: f32,
|
|
) {
|
|
let perp = Vec3::new(-axis.y, axis.x, 0.0);
|
|
let dim_line_pos = def.dot(perp);
|
|
// Perpendicular offset from each defpoint to the dimension line (signed).
|
|
let offset1 = dim_line_pos - first.dot(perp);
|
|
let offset2 = dim_line_pos - second.dot(perp);
|
|
let d1 = first + perp * offset1;
|
|
let d2 = second + perp * offset2;
|
|
// DIMEXO: gap from the definition point toward the dimension line.
|
|
// DIMEXE: overshoot past the dimension line.
|
|
let sign1 = if offset1 >= 0.0 { 1.0_f32 } else { -1.0 };
|
|
let sign2 = if offset2 >= 0.0 { 1.0_f32 } else { -1.0 };
|
|
let ext1_start = first + perp * (sign1 * dimexo);
|
|
let ext1_end = d1 + perp * (sign1 * dimexe);
|
|
let ext2_start = second + perp * (sign2 * dimexo);
|
|
let ext2_end = d2 + perp * (sign2 * dimexe);
|
|
add_segment(points, ext1_start, ext1_end);
|
|
add_segment(points, ext2_start, ext2_end);
|
|
add_segment(points, d1, d2);
|
|
append_arrow(points, d1, normalized_or(d2 - d1, axis), arrow_size);
|
|
append_arrow(points, d2, normalized_or(d1 - d2, -axis), arrow_size);
|
|
}
|
|
|
|
fn append_angular_dimension(
|
|
points: &mut Vec<[f32; 3]>,
|
|
vertex: Vec3,
|
|
first: Vec3,
|
|
second: Vec3,
|
|
arc_point: Vec3,
|
|
arrow_size: f32,
|
|
) {
|
|
add_segment(points, vertex, first);
|
|
add_segment(points, vertex, second);
|
|
|
|
let radius = vertex.distance(arc_point);
|
|
if radius <= 1e-6 {
|
|
return;
|
|
}
|
|
|
|
let start = (first.y - vertex.y).atan2(first.x - vertex.x);
|
|
let mut end = (second.y - vertex.y).atan2(second.x - vertex.x);
|
|
let mut delta = end - start;
|
|
while delta <= 0.0 {
|
|
delta += std::f32::consts::TAU;
|
|
}
|
|
if delta > std::f32::consts::PI {
|
|
end -= std::f32::consts::TAU;
|
|
delta = end - start;
|
|
}
|
|
|
|
let steps = 32;
|
|
let mut arc_pts = Vec::with_capacity((steps + 1) as usize);
|
|
for i in 0..=steps {
|
|
let t = i as f32 / steps as f32;
|
|
let a = start + delta * t;
|
|
arc_pts.push(vertex + Vec3::new(a.cos() * radius, a.sin() * radius, 0.0));
|
|
}
|
|
add_polyline(points, &arc_pts);
|
|
|
|
if arc_pts.len() >= 2 {
|
|
append_arrow(
|
|
points,
|
|
arc_pts[0],
|
|
normalized_or(arc_pts[1] - arc_pts[0], Vec3::X),
|
|
arrow_size,
|
|
);
|
|
let n = arc_pts.len();
|
|
append_arrow(
|
|
points,
|
|
arc_pts[n - 1],
|
|
normalized_or(arc_pts[n - 2] - arc_pts[n - 1], Vec3::X),
|
|
arrow_size,
|
|
);
|
|
}
|
|
}
|
|
|
|
fn append_arrow(points: &mut Vec<[f32; 3]>, tip: Vec3, dir: Vec3, size: f32) {
|
|
let dir = normalized_or(dir, Vec3::X) * size;
|
|
let left = rotate(dir, 2.6);
|
|
let right = rotate(dir, -2.6);
|
|
add_segment(points, tip, tip + left);
|
|
add_segment(points, tip, tip + right);
|
|
}
|
|
|
|
fn add_segment(points: &mut Vec<[f32; 3]>, a: Vec3, b: Vec3) {
|
|
if !points.is_empty() {
|
|
points.push([f32::NAN, f32::NAN, f32::NAN]);
|
|
}
|
|
points.push([a.x, a.y, a.z]);
|
|
points.push([b.x, b.y, b.z]);
|
|
}
|
|
|
|
fn add_polyline(points: &mut Vec<[f32; 3]>, polyline: &[Vec3]) {
|
|
if polyline.len() < 2 {
|
|
return;
|
|
}
|
|
if !points.is_empty() {
|
|
points.push([f32::NAN, f32::NAN, f32::NAN]);
|
|
}
|
|
points.extend(polyline.iter().map(|p| [p.x, p.y, p.z]));
|
|
}
|
|
|
|
fn dimension_snap_pts(dim: &Dimension, world_offset: [f64; 3]) -> Vec<(Vec3, SnapHint)> {
|
|
let lv = |v: acadrust::types::Vector3| {
|
|
Vec3::new(
|
|
(v.x - world_offset[0]) as f32,
|
|
(v.y - world_offset[1]) as f32,
|
|
(v.z - world_offset[2]) as f32,
|
|
)
|
|
};
|
|
let node = |v: acadrust::types::Vector3| (lv(v), SnapHint::Node);
|
|
match dim {
|
|
Dimension::Linear(d) => vec![
|
|
node(d.first_point),
|
|
node(d.second_point),
|
|
node(d.definition_point),
|
|
],
|
|
Dimension::Aligned(d) => vec![
|
|
node(d.first_point),
|
|
node(d.second_point),
|
|
node(d.definition_point),
|
|
],
|
|
Dimension::Radius(d) => vec![node(d.angle_vertex), node(d.definition_point)],
|
|
Dimension::Diameter(d) => vec![node(d.angle_vertex), node(d.definition_point)],
|
|
Dimension::Angular2Ln(d) => vec![
|
|
node(d.angle_vertex),
|
|
node(d.first_point),
|
|
node(d.second_point),
|
|
node(d.definition_point),
|
|
],
|
|
Dimension::Angular3Pt(d) => vec![
|
|
node(d.angle_vertex),
|
|
node(d.first_point),
|
|
node(d.second_point),
|
|
node(d.definition_point),
|
|
],
|
|
Dimension::Ordinate(d) => vec![
|
|
node(d.definition_point),
|
|
node(d.feature_location),
|
|
node(d.leader_endpoint),
|
|
],
|
|
}
|
|
}
|
|
|
|
fn dimension_text_entity(dim: &Dimension) -> Option<Text> {
|
|
let value = dimension_text_value(dim)?;
|
|
// Use f64 position directly to avoid f32 round-trip precision loss at large
|
|
// coordinates (e.g. Turkish UTM ~4,000,000 m). tessellate() will apply
|
|
// world_offset when rendering this synthetic Text entity.
|
|
let pos_f64 = dimension_text_pos_f64(dim);
|
|
let base = dim.base();
|
|
let rotation = if base.text_rotation.abs() > 1e-9 {
|
|
base.text_rotation
|
|
} else {
|
|
dimension_text_natural_rotation(dim)
|
|
};
|
|
let mut text = Text::with_value(value, pos_f64)
|
|
.with_height(dimension_text_height(dim))
|
|
.with_rotation(rotation);
|
|
text.style = base.style_name.clone();
|
|
text.common = base.common.clone();
|
|
Some(text)
|
|
}
|
|
|
|
fn dimension_text_natural_rotation(dim: &Dimension) -> f64 {
|
|
let angle = match dim {
|
|
Dimension::Linear(d) => d.rotation,
|
|
Dimension::Aligned(d) => {
|
|
let dx = d.second_point.x - d.first_point.x;
|
|
let dy = d.second_point.y - d.first_point.y;
|
|
dy.atan2(dx)
|
|
}
|
|
_ => 0.0,
|
|
};
|
|
// Clamp to (-π/2, π/2] so text never appears upside-down.
|
|
let pi = std::f64::consts::PI;
|
|
if angle > pi / 2.0 {
|
|
angle - pi
|
|
} else if angle <= -pi / 2.0 {
|
|
angle + pi
|
|
} else {
|
|
angle
|
|
}
|
|
}
|
|
|
|
fn dimension_text_value(dim: &Dimension) -> Option<String> {
|
|
let base = dim.base();
|
|
if let Some(user_text) = &base.user_text {
|
|
if !user_text.trim().is_empty() {
|
|
return Some(user_text.clone());
|
|
}
|
|
}
|
|
if !base.text.trim().is_empty() {
|
|
return Some(base.text.clone());
|
|
}
|
|
Some(match dim {
|
|
Dimension::Radius(_) => format!("R{:.4}", dim.measurement()),
|
|
Dimension::Diameter(_) => format!("Ø{:.4}", dim.measurement()),
|
|
Dimension::Angular2Ln(_) | Dimension::Angular3Pt(_) => {
|
|
format!("{:.2}°", dim.measurement())
|
|
}
|
|
_ => format!("{:.4}", dim.measurement()),
|
|
})
|
|
}
|
|
|
|
fn dimension_text_position(dim: &Dimension, world_offset: [f64; 3]) -> Vec3 {
|
|
let lv = |v| vec3_local(v, world_offset);
|
|
let base = dim.base();
|
|
let pos = lv(base.text_middle_point);
|
|
if pos.length_squared() > 1e-8 {
|
|
return pos;
|
|
}
|
|
match dim {
|
|
Dimension::Aligned(d) => (lv(d.first_point) + lv(d.second_point)) * 0.5,
|
|
Dimension::Linear(d) => (lv(d.first_point) + lv(d.second_point)) * 0.5,
|
|
Dimension::Radius(d) => (lv(d.angle_vertex) + lv(d.definition_point)) * 0.5,
|
|
Dimension::Diameter(d) => (lv(d.angle_vertex) + lv(d.definition_point)) * 0.5,
|
|
Dimension::Angular2Ln(d) => lv(d.dimension_arc),
|
|
Dimension::Angular3Pt(d) => lv(d.definition_point),
|
|
Dimension::Ordinate(d) => lv(d.leader_endpoint),
|
|
}
|
|
}
|
|
|
|
fn dimension_text_height(dim: &Dimension) -> f64 {
|
|
let scale = (dim.measurement().abs() * 0.12).clamp(0.25, 2.0);
|
|
if scale.is_finite() {
|
|
scale
|
|
} else {
|
|
0.25
|
|
}
|
|
}
|
|
|
|
fn vec3_local(v: Vector3, off: [f64; 3]) -> Vec3 {
|
|
Vec3::new(
|
|
(v.x - off[0]) as f32,
|
|
(v.y - off[1]) as f32,
|
|
(v.z - off[2]) as f32,
|
|
)
|
|
}
|
|
|
|
fn offset_snap_pts(pts: Vec<(Vec3, SnapHint)>, off: [f64; 3]) -> Vec<(Vec3, SnapHint)> {
|
|
let [ox, oy, oz] = off;
|
|
pts.into_iter()
|
|
.map(|(p, h)| {
|
|
(
|
|
Vec3::new(p.x - ox as f32, p.y - oy as f32, p.z - oz as f32),
|
|
h,
|
|
)
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
/// Returns the text position of a dimension in DXF world-space (f64, no offset applied).
|
|
/// Used when building a synthetic Text entity so tessellate() can apply world_offset itself.
|
|
fn dimension_text_pos_f64(dim: &Dimension) -> Vector3 {
|
|
let base = dim.base();
|
|
let p = base.text_middle_point;
|
|
if p.x * p.x + p.y * p.y + p.z * p.z > 1e-16 {
|
|
return p;
|
|
}
|
|
match dim {
|
|
Dimension::Aligned(d) => Vector3::new(
|
|
(d.first_point.x + d.second_point.x) * 0.5,
|
|
(d.first_point.y + d.second_point.y) * 0.5,
|
|
(d.first_point.z + d.second_point.z) * 0.5,
|
|
),
|
|
Dimension::Linear(d) => Vector3::new(
|
|
(d.first_point.x + d.second_point.x) * 0.5,
|
|
(d.first_point.y + d.second_point.y) * 0.5,
|
|
(d.first_point.z + d.second_point.z) * 0.5,
|
|
),
|
|
Dimension::Radius(d) => Vector3::new(
|
|
(d.angle_vertex.x + d.definition_point.x) * 0.5,
|
|
(d.angle_vertex.y + d.definition_point.y) * 0.5,
|
|
(d.angle_vertex.z + d.definition_point.z) * 0.5,
|
|
),
|
|
Dimension::Diameter(d) => Vector3::new(
|
|
(d.angle_vertex.x + d.definition_point.x) * 0.5,
|
|
(d.angle_vertex.y + d.definition_point.y) * 0.5,
|
|
(d.angle_vertex.z + d.definition_point.z) * 0.5,
|
|
),
|
|
Dimension::Angular2Ln(d) => d.dimension_arc,
|
|
Dimension::Angular3Pt(d) => d.definition_point,
|
|
Dimension::Ordinate(d) => d.leader_endpoint,
|
|
}
|
|
}
|
|
|
|
fn normalized_or(v: Vec3, fallback: Vec3) -> Vec3 {
|
|
if v.length_squared() <= 1e-12 {
|
|
fallback
|
|
} else {
|
|
v.normalize()
|
|
}
|
|
}
|
|
|
|
fn rotate(v: Vec3, angle: f32) -> Vec3 {
|
|
let (s, c) = angle.sin_cos();
|
|
Vec3::new(v.x * c - v.y * s, v.x * s + v.y * c, v.z)
|
|
}
|