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Valentin KleinandClaude Opus 5.5
5f0390eb20
Objects whose lineweight resolves to Default were always drawn and plotted at 0.25 mm. They now use LWDEFAULT (hundredths of a mm, 0..211), falling back to 0.25 mm when it is unset or out of range. All backends (canvas, PNG, SVG, PDF) read the width from the display list. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
28 lines
1.2 KiB
Rust
28 lines
1.2 KiB
Rust
//! The "Default" lineweight is the width LWDEFAULT names (issue #292).
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use cadcraft_doc::{Common, Drawing, EntityKind, Line, Lineweight, Space};
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use cadcraft_geom::Vec3;
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use cadcraft_render::{Kind, Options, build};
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/// Lineweights (mm) of a ByLayer line on layer 0 (lineweight Default) and an explicit 0.50 mm line.
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fn widths(lwdefault: Option<i64>) -> Vec<f32> {
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let mut d = Drawing::new_metric();
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if let Some(v) = lwdefault {
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d.header.set_i64("LWDEFAULT", v);
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}
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let line = |y: f64| EntityKind::Line(Line { a: Vec3::new(0.0, y, 0.0), b: Vec3::new(10.0, y, 0.0) });
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d.add(&Space::Model, Common::default(), line(0.0)).unwrap();
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d.add(&Space::Model, Common { lineweight: Lineweight::Mm100(50), ..Default::default() }, line(1.0)).unwrap();
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let l = build(&d, &Space::Model, &Options { lineweights: true, ..Default::default() });
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l.prims.iter().filter(|p| p.kind == Kind::Polyline).map(|p| p.lw).collect()
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}
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#[test]
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fn default_lineweight_follows_lwdefault() {
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assert_eq!(widths(None), [0.25, 0.5], "unset: 0.25 mm");
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assert_eq!(widths(Some(70)), [0.7, 0.5]);
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assert_eq!(widths(Some(0)), [0.0, 0.5]);
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assert_eq!(widths(Some(-3)), [0.25, 0.5], "out of range: 0.25 mm");
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assert_eq!(widths(Some(5000)), [0.25, 0.5]);
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}
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