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fix(hatch): improve angle handling for circular arcs in tessellation

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This commit is contained in:
Hakan 2026-05-12 09:41:41 +03:00
commit 468cbde5e1
2 changed files with 16 additions and 6 deletions
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12
src/scene/mod.rs
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@ -2016,14 +2016,20 @@ impl Scene {
boundary.push(to_xy(line.end.x, line.end.y));
}
BoundaryEdge::CircularArc(arc) => {
const TAU: f64 = std::f64::consts::TAU;
let cx = arc.center.x;
let cy = arc.center.y;
let r = arc.radius;
let sa = arc.start_angle;
let ea = arc.end_angle;
let end = if ea >= sa { ea } else { ea + std::f64::consts::TAU };
let span = end - sa;
let segs = ((span / std::f64::consts::TAU) * 32.0).ceil().max(4.0) as u32;
let ccw = arc.counter_clockwise;
let (sa, ea) = if ccw {
(sa, ea)
} else {
(TAU - sa, TAU - ea)
};
let span = ea - sa;
let segs = ((span / TAU) * 32.0).ceil().max(4.0) as u32;
for i in 0..=segs {
let t = sa + span * (i as f64 / segs as f64);
boundary.push(to_xy(

10
src/scene/tessellate.rs
View file

@ -766,9 +766,13 @@ fn legacy_geometry(entity: &EntityType, world_offset: [f64; 3]) -> Geometry {
acadrust::entities::BoundaryEdge::CircularArc(arc) => {
let sa = arc.start_angle;
let ea = arc.end_angle;
let ccw_end = if ea >= sa { ea } else { ea + TAU };
let (start_a, end_a) = (sa, ccw_end);
let span = end_a - start_a;
let ccw = arc.counter_clockwise;
let (sa, ea) = if ccw {
(sa, ea)
} else {
(TAU - sa, TAU - ea)
};
let span = ea - sa;
let segs = ((span / TAU) * 32.0)
.ceil()
.max(4.0) as u32;