update

2026-05-14 22:12:40 +08:00
parent 334845d732
commit 3ba8ba80b3
6 changed files with 252 additions and 69 deletions
@@ -14,5 +14,8 @@ QPointF polygonCentroid(const QVector<QPointF>& poly);
 QRect clampRectToImage(const QRect& r, const QSize& size);
 QImage extractEntityImage(const QImage& bg, const QVector<QPointF>& polyWorld, QPointF& outTopLeftWorld);
 void applyBlackFillToBackground(QImage& bgCutout, const QVector<QPointF>& polyWorld);
+/// 子图左上角与 cropWorldRect.topLeft() 对齐（世界坐标）；将 holePolysWorld 内像素置黑，供分割/吸附与画布一致。
+void applyBlackHolesToImageRegion(QImage& regionPremul, const QRect& cropWorldRect,
+                                  const QVector<QVector<QPointF>>& holePolysWorld);

 }  // namespace entity_cutout