feat: Ghost points at the end of the splines

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
2026-03-20 14:33:04 +00:00
parent c1082923ee
commit c94e05970d
6 changed files with 172 additions and 80 deletions
@@ -790,9 +790,20 @@ export class LinearElementEditor {
      elementsMap,
    );

+    // For curved (non-elbow) arrows the quadratic spline produces N-2 arcs
+    // for N anchor points. Cap the loop to the actual segment count so we
+    // don't request a midpoint for a segment that doesn't exist.
+    const [lines, segCurves] = deconstructLinearOrFreeDrawElement(element);
+    const segmentCount = lines.length + segCurves.length;
+
    let index = 0;
    const midpoints: (GlobalPoint | null)[] = [];
    while (index < points.length - 1) {
+      if (segmentCount > 0 && index >= segmentCount) {
+        midpoints.push(null);
+        index++;
+        continue;
+      }
      if (
        LinearElementEditor.isSegmentTooShort(
          element,