Add method for merging layers that are at the same PositionZ

2026-07-09 01:52:32 +02:00 · 2021-10-28 15:29:52 -05:00
parent 55ecd25683
commit b658c0e2f6
1 changed files with 17 additions and 0 deletions
@@ -623,6 +623,23 @@ namespace UVtools.Core
            return layers;
        }

+        public Mat GetMergedMatForLayerAtIndex(uint startIndex)
+        {
+            /* This operates backwards because GetSamePositionedLayers returns the highest layer index with the same postion z, not the lowest */
+            var startLayer = this[startIndex];
+
+            Mat layerMat = startLayer.LayerMat;
+
+            for (var curIndex = startIndex + 1; curIndex < LayerCount && (this[curIndex].PositionZ == startLayer.PositionZ); curIndex++)
+            {
+                var nextLayer = this[curIndex].LayerMat;
+                CvInvoke.BitwiseOr(nextLayer, layerMat, layerMat);
+                nextLayer.Dispose();
+            }
+
+            return layerMat;
+        }
+
        public Rectangle GetBoundingRectangle(OperationProgress progress = null)
        {
            if (!_boundingRectangle.IsEmpty || LayerCount == 0 || this[0] is null) return _boundingRectangle;