Generally Pixels are looped though using 2 loops, 1 for the width and 1 for the height.
Using multiple loops, can always become a difficult way to manage and I wanted to share another way to accomplish a traverse of a full BitmapData.
//import declerations import flash.geom.Point; import flash.display.Bitmap; import flash.display.BitmapData; //declare your bitmapdata var bmpd:BitmapData= new BadIdea(1,1) //declare the bitmap var bitmap:Bitmap= new Bitmap() //assign the bitmapdata to the bitmap bitmap.bitmapData=bmpd //add the bitmap to the stage addChild(bitmap) //assign the width and height and calculate the total Pixels this image has var _wide:int=bmpd.width, var _tall:int=bmpd.height, var totalPixels:int=_wide*_tall //to take advantage of counting downwards add 1 to the totalPixels var index:int=totalPixels+1 //create 1 loop that will itterate down from the totalPixels while(--index>0){ //since we use index-1 in two places, lets limit that amount of times to calculate that var useIndex:int=index-1 //assign the xCoordinate which is calculated through modolus of the width. var xPixel:int=useIndex%_wide //assign the yCoordinate which is calculated by dividing the current index by its width and then floored. no different then finding PERCENT of a number think of it that way. 0/100 = 0 percent or line 0 1/100 is 1 or line 1 etc var yPixel:int=int(useIndex/_wide) //here you can see i set the pixels of the bitmap to red at the given xCoordinate yCoordinate. This was to show you that all pixels are complete. bmpd.setPixel(xPixel,yPixel,0xff0000) }
