Method fill

ij/src/main/java/ij/process/ByteProcessor.java:221–241

Sets pixels that are within roi and part of the mask to the foreground color. Does nothing if the mask is not the same size as the ROI.

(ImageProcessor mask)

	/** Sets pixels that are within roi and part of the mask to the foreground
		color. Does nothing if the mask is not the same size as the ROI. */
	public void fill(ImageProcessor mask) {
		if (mask==null)
			{fill(); return;}
		int roiWidth=this.roiWidth, roiHeight=this.roiHeight;
		int roiX=this.roiX, roiY=this.roiY;
		if (mask.getWidth()!=roiWidth||mask.getHeight()!=roiHeight) {
			mask = getMask();
			if (mask==null||mask.getWidth()!=roiWidth||mask.getHeight()!=roiHeight)
				return;
		}
		byte[] mpixels = (byte[])mask.getPixels();
		for (int y=roiY, my=0; y<(roiY+roiHeight); y++, my++) {
			int i = y * width + roiX;
			int mi = my * roiWidth;
			for (int x=roiX; x<(roiX+roiWidth); x++) {
				if (mpixels[mi++]!=0)
					pixels[i] = (byte)fgColor;
				i++;
			}
		}
	}

	public int getPixel(int x, int y) {
		if (x>=0 && x<width && y>=0 && y<height)