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Improve stability of the 'Sample Points' node (#3119) 

improve perimeter calculation of the path bezier segments when it is very close to linear bezier curve

Co-authored-by: Keavon Chambers <keavon@keavon.com>
This commit is contained in:
Priyanshu 2025-09-08 09:50:46 +05:30 committed by GitHub
parent cf2e525ea9
commit c384175910
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1 changed files with 9 additions and 1 deletions
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10
node-graph/gcore/src/vector/vector_nodes.rs
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@ -1331,6 +1331,14 @@ async fn poisson_disk_points(
#[node_macro::node(category(""), path(graphene_core::vector))]
async fn subpath_segment_lengths(_: impl Ctx, content: Table<Vector>) -> Vec<f64> {
let pathseg_perimeter = |segment: PathSeg| {
if is_linear(segment) {
Line::new(segment.start(), segment.end()).perimeter(DEFAULT_ACCURACY)
} else {
segment.perimeter(DEFAULT_ACCURACY)
}
};
content
.into_iter()
.flat_map(|vector| {
@ -1340,7 +1348,7 @@ async fn subpath_segment_lengths(_: impl Ctx, content: Table<Vector>) -> Vec<f64
.stroke_bezpath_iter()
.flat_map(|mut bezpath| {
bezpath.apply_affine(Affine::new(transform.to_cols_array()));
bezpath.segments().map(|segment| segment.perimeter(DEFAULT_ACCURACY)).collect::<Vec<f64>>()
bezpath.segments().map(pathseg_perimeter).collect::<Vec<f64>>()
})
.collect::<Vec<f64>>()
})