As3 and Image ByteArray Data?

Define a rectangle containing the circle, relative to the top left of the image var radius:Number = 100; var centerX:Number = 50; var centerY:NUmber = 400; var rect:Rectangle = new Rectangle(centerX-radius, centerY-radius, radius*2, radius*2) Then use the getPixels() to return a ByteArray of the pixels inside the rectangle. Now you can loop through each pixel and check if it's contained inside the circle var image:BitmapData; var pixels:ByteArray = image. GetPixels(rect); for(var x:int; x var pixel:uint = pixels.readUnsignedInt(); // Check this pixels distance from the center to make sure it is inside the circle.

Var dx:Number = x - radius; var dy:Number = y - radius; if(dx*dx+dy*dy.

Define a rectangle containing the circle, relative to the top left of the image. Var radius:Number = 100; var centerX:Number = 50; var centerY:NUmber = 400; var rect:Rectangle = new Rectangle(centerX-radius, centerY-radius, radius*2, radius*2); Then use the getPixels() to return a ByteArray of the pixels inside the rectangle. Now you can loop through each pixel and check if it's contained inside the circle.

Var image:BitmapData; var pixels:ByteArray = image. GetPixels(rect); for(var x:int; x var pixel:uint = pixels.readUnsignedInt(); // Check this pixels distance from the center to make sure it is inside the circle. Var dx:Number = x - radius; var dy:Number = y - radius; if(dx*dx+dy*dy SetPixels(rect, pixels); I haven't actually used or tested any of this so it might not work.

It might also be easier to work with the data if you use getVector() and setVector() instead.

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