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fix: Off-by-one

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Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
This commit is contained in:
Mark Tolmacs
2026-04-17 14:57:37 +00:00
parent f96d8e6b08
commit 185ea83d1b
1 changed files with 3 additions and 3 deletions
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packages/element/src/renderFreedraw.ts
+3 -3
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@@ -491,7 +491,7 @@ export const generateOrUpdateFreeDrawIncrementalCanvas = (
committedCanvas
.getContext("2d")!
.drawImage(prevInc.committedCanvas, copyX, copyY);
committedFromIndex = prevInc.committedPointCount - 1;
committedFromIndex = prevInc.committedPointCount;
} else {
// Full regeneration: zoom/theme change or first frame.
committedFromIndex = 0;
@@ -516,7 +516,7 @@ export const generateOrUpdateFreeDrawIncrementalCanvas = (
canvasOriginSceneX = prevInc.canvasOriginSceneX;
canvasOriginSceneY = prevInc.canvasOriginSceneY;
canvasScale = prevInc.scale;
committedFromIndex = prevInc.committedPointCount - 1;
committedFromIndex = prevInc.committedPointCount;
}
const inc = freedrawIncrementalCache.get(element)!;
@@ -570,7 +570,7 @@ export const generateOrUpdateFreeDrawIncrementalCanvas = (
element,
ctx,
renderConfig,
inc.committedPointCount - 1,
inc.committedPointCount,
undefined, // draw to natural end (the tip segment)
canvasScale,
);