demo mesh extraction from bitmap

DemoMeshExtractionFromBitmap.as

@@ -0,0 +1,50 @@
+package
+{
+	import DDLS.data.math.DDLSTools;
+
+	import flash.display.Bitmap;
+	import flash.display.Sprite;
+	import flash.geom.Point;
+
+	[SWF(width="600", height="600")]
+	public class DemoMeshExtractionFromBitmap extends Sprite
+	{
+
+		[Embed(source="DemoMeshExtractionFromBitmap.png")]
+		//[Embed(source="DemoFromBitmap.png")]
+		private var BmpClass:Class;
+		private var _bmp:Bitmap;
+
+		public function DemoMeshExtractionFromBitmap()
+		{
+
+			// show the source bmp
+			_bmp = new BmpClass();
+			_bmp.x = 200;
+			_bmp.y = 200;
+			addChild(_bmp);
+
+			// 2 containers to store result of extraction
+			var vertices:Vector.<Point> = new Vector.<Point>();
+			var triangles:Vector.<int> = new Vector.<int>();
+
+			// extraction !
+			DDLSTools.extractMeshFromBitmap(_bmp.bitmapData, vertices, triangles);
+
+			// now we can draw the mesh on screen
+			var screenMesh:Sprite = new Sprite();
+			addChild(screenMesh);
+			screenMesh.x = 200;
+			screenMesh.y = 200;
+			screenMesh.graphics.lineStyle(1, 0xFF0000);
+			for (var i:int=0 ; i<triangles.length ; i+=3)
+			{
+				screenMesh.graphics.moveTo(vertices[triangles[i]].x, vertices[triangles[i]].y);
+				screenMesh.graphics.lineTo(vertices[triangles[i+1]].x, vertices[triangles[i+1]].y);
+				screenMesh.graphics.lineTo(vertices[triangles[i+2]].x, vertices[triangles[i+2]].y);
+				screenMesh.graphics.lineTo(vertices[triangles[i]].x, vertices[triangles[i]].y);
+			}
+
+		}
+	}
+}