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Hakan SevenandClaude Opus 4.7 30f7ad0918 feat(hatch): rasterise PAT pattern lines for paper canvas + PDF

Both the on-screen paper canvas and the PDF / print pipeline only knew how
to draw the boundary outline of pattern hatches (ANSI31, ANSI37, dotted
brick, etc.) — the actual hatch lines were a GPU-only feature, so any
paper-space view or PDF export showed a hollow polygon where there should
be ruled fill.

Add a CPU rasteriser as `HatchModel::pattern_segments()`:

- builds an edge list from the boundary, splitting at NaN sentinels and
  closing each sub-path so even-odd inside tests handle islands / holes;
- for every PAT family computes the world-space step vector
  (`(dx,dy)` rotated into the family's frame, scaled by `model.scale`)
  and the inclusive k-range bounded by the boundary AABB plus a 4096-
  line safety cap;
- intersects each line with every boundary edge, sorts the hit
  parameters, walks them in pairs (even-odd) and emits one segment per
  in/out interval. Dash patterns are walked along each clipped span with
  phase preserved via `t mod period`, matching the GPU shader's
  absolute-t dash evaluation;
- pattern origin (`family.x0 / y0`) is rotated by `angle_offset` and
  scaled the same way as `hatch_batched.wgsl`, so PAT patterns with
  non-zero origins (brick / offset herringbone) line up with the GPU
  render.

`paper_canvas::draw_hatch` and `pdf_export::emit_hatch` now route
pattern hatches through this rasteriser; solid / gradient hatches keep
their existing fast paths. The previous outline-only behaviour was a
visible regression on every layout containing a ruled fill.

Co-Authored-By: Claude Opus 4.7 <[email protected]>

2026-05-22 06:52:20 +03:00

.claude

feat: add local settings for Bash permissions

2026-04-30 10:01:17 +03:00

.github

chore(release): drop Intel macOS build; arm64 only

2026-05-20 21:31:19 +03:00

assets

feat: add new screenshot for documentation

2026-05-19 00:20:32 +03:00

examples

fix(scene): rescale dash pattern when projecting wires to paper space

2026-05-19 08:27:05 +03:00

packaging

chore(release): drop flatpak, add macOS .dmg, hide Windows console

2026-05-20 21:13:02 +03:00

src

feat(hatch): rasterise PAT pattern lines for paper canvas + PDF

2026-05-22 06:52:20 +03:00

.gitignore

docs: add file-open and render performance roadmap

2026-05-17 21:34:12 +03:00

build.rs

feat: redesign View tab and fix Annotate/tab order

2026-04-09 12:25:15 +03:00

Cargo.lock

chore(release): bump to 0.3.6

2026-05-21 16:25:00 +03:00

Cargo.toml

chore(release): bump to 0.3.6

2026-05-21 16:25:00 +03:00

COMMANDS.md

docs: add COMMANDS.md and update ROADMAP.md in English

2026-04-09 20:06:35 +03:00

HEADER_AUDIT.md

feat: add HeaderVariables audit documentation

2026-05-20 05:57:16 +03:00

LICENSE

Initial commit

2026-03-22 14:53:51 +03:00

README.md

chore(release): drop Intel macOS build; arm64 only

2026-05-20 21:31:19 +03:00

ROADMAP.md

docs: add file-open and render performance roadmap

2026-05-17 21:34:12 +03:00

README.md

H7CAD

A CAD application for 2D drafting and 3D modeling, built with Rust. Reads and writes DWG and DXF files natively.

Features

File Formats

DWG read/write (R13 through R2018)
DXF read/write (R13 through R2018)
STL export (STLOUT / EXPORTSTL)
STEP AP203 export (STEPOUT)
OBJ import (IMPORTOBJ)
PDF export (plot layouts to PDF)
WBLOCK — write selected entities or a block to an external file
XREF — attach, reload, and auto-resolve external references

2D Drafting

Command	Description
`LINE`, `PLINE`, `RECTANG`, `POLYGON`	Basic geometry
`CIRCLE`, `ARC`, `ELLIPSE`, `SPLINE`	Curves
`HATCH`, `HATCHEDIT`	Hatch fills with pattern, scale, angle editing
`OFFSET`, `TRIM`, `EXTEND`, `FILLET`	Modify geometry (supports lines, arcs, ellipses, polylines, splines)
`BREAK`, `STRETCH`, `LENGTHEN`	Shape editing
`ARRAY`, `MIRROR`, `MOVE`, `COPY`, `ROTATE`, `SCALE`	Transformations
`EXPLODE`	Explode blocks, dimensions, polylines, mlines
`DDEDIT`	Double-click text editing
`MASSPROP`	Area, perimeter, centroid of selected entities

3D Modeling

Command	Description
`BOX`, `SPHERE`, `CYLINDER`	Solid primitives
`EXTRUDE`, `REVOLVE`	Profile-based solids
`LOFT`	Ruled-surface loft through cross-sections
`SWEEP`	Sweep a profile along a path
`ARRAY3D`	3D array
ACIS tessellation	Renders `3DSOLID`, `REGION`, and `BODY` entities

Annotations & Dimensions

Dimensions: Linear, Aligned, Angular, Radial, Diameter, Ordinate — with full DIMSTYLE support (DIMASZ, DIMSCALE, DIMEXO, DIMEXE, and more)
Text: MTEXT, TEXT, DTEXT with font browser (STYLE DIALOG)
Leaders: MLEADER with straight and spline path types; MLEADERSTYLE manager
Tolerances: GD&T feature control frames
Tables: TABLE entity render; TABLESTYLE manager
MLine: MLINE entity with MLSTYLE manager and EXPLODE support

Paper Space & Layouts

Multi-tab layout system with model space and unlimited paper space tabs
Viewport projection: Model content correctly projected into paper-space viewport rectangles
Camera persistence: View position and zoom saved per layout; restored on file open and tab switch
Correct paper size: Physical paper dimensions read from embedded PlotSettings (not drawing limits)
Inline MSPACE overlay — enter a viewport with double-click; edit model entities in place
VPORTS — preset viewport configurations (single, 2H, 2V, 4-way)
LAYOUTMANAGER / LAYOUTPANEL — GUI layout manager
PLOTSTYLEPANEL / STYLESMANAGER — plot style table editor (CTB/STB)
PRINT — send layout to system printer

Blocks & References

INSERT with attribute prompting (ATTREQ)
ATTEDIT — edit block attribute values interactively
REFEDIT / REFCLOSE — in-place block reference editing
XREF — attach, reload, and resolve external DWG/DXF references
DATAEXTRACTION — export entity property data to CSV

Snapping & Precision

Object snaps: Endpoint, Midpoint, Center, Node, Quadrant, Intersection, Perpendicular, Tangent, Nearest, Insertion, and more
Ellipse arc endpoints, LWPolyline arc midpoints, Hatch boundary points
Object Snap Tracking (OTRACK / F11)
Polar Tracking with configurable angle increment
Dynamic Input overlay (DYNMODE / F12)
Grid snap with adaptive spacing
Command history navigation (↑ / ↓)

Rendering

GPU-accelerated via WebGPU (wgpu)
4× MSAA anti-aliasing
Orthographic and perspective camera
ViewCube with face/edge/corner snapping
Wide polylines: LWPolyline and Polyline2D filled strokes
Raster images: GPU-textured quad pipeline (IMAGE command)
Wipeout: Solid fill masking
Complex linetypes: Text and shape elements rendered in linetype patterns
White/black entity colors adapt to background luminance
Per-viewport background color (BACKGROUND)
Visual style selector (Wireframe, Shaded, etc.)
X-ray ghost pass for selected wires occluded by geometry

UI

Modular ribbon interface — Home, Insert, Annotate, View, Manage, Layout
Command line with autocomplete and history
Layer Manager with per-viewport freeze columns
Properties panel
COLORSCHEME — runtime theme switching
SHORTCUTS — keyboard shortcuts panel
SPLINEDIT — close, open, reverse spline control points
UCS icon with 3D foreshortening and axis labels

Installation

Linux (AppImage)

Download H7CAD-*-linux-x86_64.AppImage from the latest release, then:

chmod +x H7CAD-*-linux-x86_64.AppImage
./H7CAD-*-linux-x86_64.AppImage

No installation required — runs directly on any modern Linux distribution.

Windows

Download H7CAD-*-windows-x86_64.exe from the latest release and run it directly. Windows SmartScreen may show "Windows protected your PC" because the binary is not yet code-signed — click More info → Run anyway.

macOS (Apple Silicon)

Download H7CAD-*-macos-arm64.dmg from the latest release — Apple Silicon (M-series) only; Intel macOS isn't built.

Open the .dmg and drag H7CAD.app to /Applications. The first launch may be blocked by Gatekeeper because the app is not notarised — right-click H7CAD.app → Open and confirm, or run once via xattr -dr com.apple.quarantine /Applications/H7CAD.app.

Build from Source

Requirements: Rust 1.75+

git clone https://github.com/HakanSeven12/H7CAD.git
cd H7CAD
cargo build --release --bin H7CAD
./target/release/H7CAD

License

GPL-3.0-only — see LICENSE

README.md Unescape Escape

H7CAD

Features

File Formats

2D Drafting

3D Modeling

Annotations & Dimensions

Paper Space & Layouts

Blocks & References

Snapping & Precision

Rendering

UI

Installation

Linux (AppImage)

Windows

macOS (Apple Silicon)

Build from Source

License

README.md