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Avoid in-place modifications when expanding contours

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This commit is contained in:
be5invis 2021-07-31 13:38:15 -07:00
parent 1bd83fe9ca
commit fe35f3dff7
1 changed files with 5 additions and 3 deletions
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8
font-src/support/geometry/index.js
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@ -128,13 +128,15 @@ class DiSpiroGeometry extends GeometryBase {
asContours() { asContours() {
if (this.m_cachedContours) return this.m_cachedContours; if (this.m_cachedContours) return this.m_cachedContours;
const { lhs, rhs } = this.expand(); const expandResult = this.expand();
const lhs = [...expandResult.lhs];
const rhs = [...expandResult.rhs];
let rawGeometry; let rawGeometry;
if (this.m_closed) { if (this.m_closed) {
rawGeometry = new CombineGeometry([ rawGeometry = new CombineGeometry([
new SpiroGeometry(Transform.Id(), this.m_closed, lhs.slice(0, -1)), new SpiroGeometry(Transform.Id(), true, lhs.slice(0, -1)),
new SpiroGeometry(Transform.Id(), this.m_closed, rhs.reverse().slice(0, -1)) new SpiroGeometry(Transform.Id(), true, rhs.reverse().slice(0, -1))
]); ]);
} else { } else {
lhs[0].type = lhs[lhs.length - 1].type = "corner"; lhs[0].type = lhs[lhs.length - 1].type = "corner";