Merge pull request #1062 from dotCooCoo/feat/eps-arc-angles
EPS: arc and arcn with huge angles no longer hang the import
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@ -123,7 +123,7 @@ Ranked; detail in [docs/roadmap.md](docs/roadmap.md) and [docs/gaps.md](docs/gap
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| Date | What landed |
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| 2026-10-11 | Effect › Brush Strokes: Accented Edges, Angled Strokes, Crosshatch, Dark Strokes, Ink Outlines, Spatter, Sprayed Strokes, Sumi-e (G2). Command parameters from agents and files checked before anything changes (paint, place, cuts, dashes, crop, asset ids, anchors, paths, distort; #984–#999); command dialogs keep whole numbers whole, so Create Object Mosaic takes the tiles typed (#1000); stepper arrows take Shift (×10) and Ctrl/Cmd (÷10) like the arrow keys (#991). Exports and Rasterize supersample Art Optimized edges, so shapes meeting edge to edge leave no seam (#983). Character and paragraph styles take leading, kerning, mojikumi and the other attributes left out at their defaults (#1001). Drawing, typing and pasting with no layer shown and unlocked is refused instead of adding art to a hidden or locked layer (#1002). MCP `add_text` gives type on or in a path the colour asked for (#1003). MCP `screenshot` of a connected app renders the artboard asked for (#1004). `vectorcraft-cli run` ends quietly when its reader closes early (#1005). Select › All on Active Artboard selects on the artboard made active, not always the first (#1006). Reverse Gradient keeps off-centre midpoints, mirrored (#1007). A polar grid with no radial dividers draws none (#1008). Use Precise Cursors also covers the Pen's join pointer (#1009). SVGs with one absolute and one unitless root side import at their size, unstretched (#1010). DXF US survey inches, yards and miles open at their size and name (#1011). A file placed into a document with no other links follows its first change even while the app sits idle (#1031). PDF import keeps the style a font name says when the file doesn't embed the font (#1023). Shift selects ruler guides and art together, and Delete removes both (#1022). Open filled paths are hit by their fill on every side, the rotate cursor bows around the corner it is at, the flip icons match their flips, the Color Picker previews on the selection, and Properties › Transform reaches Scale Corners and Scale Strokes & Effects (#1036). Offset Path and the other booleans finish on outlines where the sweep used to loop until memory ran out (linesweeper 0.5, #1028). Floating panel groups stack into sets that move together, collapse to their tabs and dock as extra dock columns that scroll (#1020). Ruler guides live on layers: listed in the Layers panel, shown, hidden, locked, duplicated, merged and deleted with their layer, and moved between layers (#1021). A `.ai` whose editing data uses global process colours (`Xk`/`XK`) or pattern fills keeps its sublayers: the colours come in as global swatches at their tint, the patterns as pattern swatches (#1025). A `.ai` in PostScript form opens through its layers, read from the program itself, also when it names the prolog defining its operators without including it, as Rhino and other CAD apps write it (#1027). A fill or stroke chosen while the Type tool has characters selected colours just those characters (#1063). Scaled type shows its scaled font size, leading, baseline shift and horizontal scale in the Character panel, and a size typed there is the size you get (#1034). Character panel menu › Proportional Metrics sets Japanese and Chinese full-width glyphs on the font's proportional widths in horizontal type (#966). Align, Distribute, Move, Arrange, Lock, Hide, Ungroup and other Object commands that would change nothing no longer record an undo step or mark the document changed (#1060). Spot colours defined in Lab open with their Lab values from `.ai` and PDF files, instead of as wrong RGB colours or their CMYK equivalents (#1032). Build scripts leave a generated source they wouldn't change untouched, so the next build doesn't compile most of the workspace again where file times lose their sub-second part (#1051). A fill colour recolours the gradient mesh point last clicked with the Mesh tool or Direct Selection, and a Mesh tool click on a mesh's point selects that mesh (#1052). The All Tools drawer stays two tools wide instead of filling a wide window (#1054). Text Wrap's Make, Release and Options refuse a list of object ids with a malformed or unknown id instead of skipping it (#1055). A freeform gradient line with a malformed point index is refused instead of being shortened to the indices that are valid (#1056). The Corners dialog (`ui.corners`) refuses a malformed object id or a listed anchor that isn't a corner instead of editing the selection or the other corners (#1057). New View refuses a centre that isn't exactly [x, y] and a rotation that isn't a number, instead of trimming the one and saving the other as 0° (#1058). The command sweeps try junk scale, spacing and artboard values too, which they had skipped since before those bugs were fixed (#1059). |
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| 2026-10-11 | Effect › Brush Strokes: Accented Edges, Angled Strokes, Crosshatch, Dark Strokes, Ink Outlines, Spatter, Sprayed Strokes, Sumi-e (G2). Command parameters from agents and files checked before anything changes (paint, place, cuts, dashes, crop, asset ids, anchors, paths, distort; #984–#999); command dialogs keep whole numbers whole, so Create Object Mosaic takes the tiles typed (#1000); stepper arrows take Shift (×10) and Ctrl/Cmd (÷10) like the arrow keys (#991). Exports and Rasterize supersample Art Optimized edges, so shapes meeting edge to edge leave no seam (#983). Character and paragraph styles take leading, kerning, mojikumi and the other attributes left out at their defaults (#1001). Drawing, typing and pasting with no layer shown and unlocked is refused instead of adding art to a hidden or locked layer (#1002). MCP `add_text` gives type on or in a path the colour asked for (#1003). MCP `screenshot` of a connected app renders the artboard asked for (#1004). `vectorcraft-cli run` ends quietly when its reader closes early (#1005). Select › All on Active Artboard selects on the artboard made active, not always the first (#1006). Reverse Gradient keeps off-centre midpoints, mirrored (#1007). A polar grid with no radial dividers draws none (#1008). Use Precise Cursors also covers the Pen's join pointer (#1009). SVGs with one absolute and one unitless root side import at their size, unstretched (#1010). DXF US survey inches, yards and miles open at their size and name (#1011). A file placed into a document with no other links follows its first change even while the app sits idle (#1031). PDF import keeps the style a font name says when the file doesn't embed the font (#1023). Shift selects ruler guides and art together, and Delete removes both (#1022). Open filled paths are hit by their fill on every side, the rotate cursor bows around the corner it is at, the flip icons match their flips, the Color Picker previews on the selection, and Properties › Transform reaches Scale Corners and Scale Strokes & Effects (#1036). Offset Path and the other booleans finish on outlines where the sweep used to loop until memory ran out (linesweeper 0.5, #1028). Floating panel groups stack into sets that move together, collapse to their tabs and dock as extra dock columns that scroll (#1020). Ruler guides live on layers: listed in the Layers panel, shown, hidden, locked, duplicated, merged and deleted with their layer, and moved between layers (#1021). A `.ai` whose editing data uses global process colours (`Xk`/`XK`) or pattern fills keeps its sublayers: the colours come in as global swatches at their tint, the patterns as pattern swatches (#1025). A `.ai` in PostScript form opens through its layers, read from the program itself, also when it names the prolog defining its operators without including it, as Rhino and other CAD apps write it (#1027). A fill or stroke chosen while the Type tool has characters selected colours just those characters (#1063). Scaled type shows its scaled font size, leading, baseline shift and horizontal scale in the Character panel, and a size typed there is the size you get (#1034). Character panel menu › Proportional Metrics sets Japanese and Chinese full-width glyphs on the font's proportional widths in horizontal type (#966). Align, Distribute, Move, Arrange, Lock, Hide, Ungroup and other Object commands that would change nothing no longer record an undo step or mark the document changed (#1060). Spot colours defined in Lab open with their Lab values from `.ai` and PDF files, instead of as wrong RGB colours or their CMYK equivalents (#1032). Build scripts leave a generated source they wouldn't change untouched, so the next build doesn't compile most of the workspace again where file times lose their sub-second part (#1051). A fill colour recolours the gradient mesh point last clicked with the Mesh tool or Direct Selection, and a Mesh tool click on a mesh's point selects that mesh (#1052). The All Tools drawer stays two tools wide instead of filling a wide window (#1054). Text Wrap's Make, Release and Options refuse a list of object ids with a malformed or unknown id instead of skipping it (#1055). A freeform gradient line with a malformed point index is refused instead of being shortened to the indices that are valid (#1056). The Corners dialog (`ui.corners`) refuses a malformed object id or a listed anchor that isn't a corner instead of editing the selection or the other corners (#1057). New View refuses a centre that isn't exactly [x, y] and a rotation that isn't a number, instead of trimming the one and saving the other as 0° (#1058). The command sweeps try junk scale, spacing and artboard values too, which they had skipped since before those bugs were fixed (#1059). EPS and PostScript `arc` and `arcn` with huge angles no longer hang the import, and an arc whose angles are whole turns apart is empty, as the PostScript reference defines it (#1062). |
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| 2026-10-10 | Initial live Revolve (Effect › 3D and Materials, #846, #605), in its own `three-d` crate. Progress docs re-measured and restructured to the craftrules standard (this page, `docs/target-app-parity.md`, `gaps.md`, `ui-parity.md`, the format, hardware, localization, effects and type checklists). Same day: v0.8.0; Effect › Distort, Pixelate and Texture filters (13); German interface; Variables (data merge); Graph Type value axes and tick marks; restart when the first frame never reaches the screen (#964) |
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| 2026-10-09 | Radial Blur, Smart Blur, Unsharp Mask (gap 2 begins); 340 commits, the busiest day |
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| 2026-10-08 | v0.5.0–v0.7.0; community contributions: Pen and shape-tool modifiers, Layers, Artboards, Japanese composition, Hebrew/Arabic type, interface languages, saved selections |
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@ -339,6 +339,12 @@ fn turn(a: f64, b: f64) -> f64 {
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if d > std::f64::consts::PI { d - std::f64::consts::TAU } else { d }
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}
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/// The angle from `a` counterclockwise to `b` (degrees, 0 to 360), worked out from what is left
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/// of each after whole turns.
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fn ccw_turn(a: f64, b: f64) -> f64 {
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(b % 360.0 - a % 360.0).rem_euclid(360.0)
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}
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impl Interp<'_> {
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/// User space → document space.
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pub fn xf(&self) -> Affine {
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@ -436,18 +442,19 @@ impl Interp<'_> {
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/// `arc` / `arcn`: from angle `a1` to `a2` (degrees, counter-clockwise or clockwise).
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fn arc(&mut self, c: Point, r: f64, a1: f64, a2: f64, ccw: bool) -> Res {
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let (a1, mut a2) = (a1.to_radians(), a2.to_radians());
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let tau = std::f64::consts::TAU;
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if ccw {
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while a2 < a1 {
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a2 += tau;
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}
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// `arc` raises `a2` by multiples of 360 until it is at least `a1`, and `arcn` lowers it
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// until it is at most `a1` (PLRM 3rd ed., `arc` and `arcn` in chapter 8). Those sweeps,
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// and the first endpoint, are worked out from what is left of each angle after whole turns.
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let sweep = if ccw && a2 < a1 {
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ccw_turn(a1, a2)
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} else if !ccw && a2 > a1 {
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-ccw_turn(a2, a1)
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} else {
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while a2 > a1 {
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a2 -= tau;
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}
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}
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let sweep = (a2 - a1).clamp(-tau * 4.0, tau * 4.0);
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a2 - a1
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};
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let tau = std::f64::consts::TAU;
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let sweep = sweep.to_radians().clamp(-tau * 4.0, tau * 4.0);
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let a1 = (a1 % 360.0).to_radians();
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let start = c + Vec2::new(r * a1.cos(), r * a1.sin());
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self.append_user(std::iter::once(PathEl::MoveTo(start)))?;
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let arc = kurbo::Arc::new(c, Vec2::new(r, r), a1, sweep, 0.0);
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@ -640,6 +640,42 @@ fn hostile_executable_files_and_type_loops_are_refused() {
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blue("currentfile cvx exec currentfile flushfile 0 0 1 setrgbcolor");
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}
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/// Reads `body` as [`read`] does, on a thread of its own, and fails the test when reading takes
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/// more than 20 s.
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fn read_soon(body: &str) -> crate::Imported {
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let (tx, rx) = std::sync::mpsc::channel();
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let ps = eps(body);
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std::thread::spawn(move || tx.send(import(&ps)).ok());
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rx.recv_timeout(std::time::Duration::from_secs(20)).unwrap_or_else(|_| panic!("reading {body} did not finish")).unwrap()
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}
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/// `arc` raises its second angle by multiples of 360 until it is at least the first, and `arcn`
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/// lowers it until it is at most the first (PLRM 3rd ed., `arc` and `arcn` in chapter 8), however
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/// large the angles: the arc runs between the angles' remainders after whole turns and ends at
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/// the second angle, the new current point.
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#[test]
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fn arcs_with_huge_angles_end_at_their_second_angle() {
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// `at(deg)` is the point at `deg` degrees on the circle of radius 10 around (50, 50), in
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// document space.
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let at = |deg: f64| Point::new(50.0 + 10.0 * deg.to_radians().cos(), 50.0 - 10.0 * deg.to_radians().sin());
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// Each program is listed with the remainders of its first and second angles after whole turns.
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for (body, first, second) in [
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("50 50 10 1e18 0 arc", 280.0, 0.0),
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("50 50 10 1e308 0 arc", 296.0, 0.0),
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("50 50 10 0 1e18 arcn", 0.0, 280.0),
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("50 50 10 0 1e308 arcn", 0.0, 296.0),
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] {
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let r = read_soon(&format!("newpath {body} currentpoint stroke 1 1 rectfill"));
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let o = objects(&r.document);
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assert_eq!(o.len(), 2, "{body}: {:?}", r.warnings);
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// The arc lies within one quarter of the circle, so its endpoints span its bounds.
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let (a, b) = (at(first), at(second));
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assert!(near(bounds(&o[0]), Rect::from_points(a, b)), "{body}: {:?}", bounds(&o[0]));
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// The second object is the square drawn at the current point.
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assert!(near(bounds(&o[1]), Rect::new(b.x, b.y - 1.0, b.x + 1.0, b.y)), "{body}: {:?}", bounds(&o[1]));
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}
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}
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#[test]
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fn cshow_runs_its_procedure_for_each_character() {
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check("/n 0 def { pop pop pop /n n 1 add def } (abc) cshow n 3 eq");
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