The application of the image is simple: when I press the rotate button, I set the background image of the marker with the image below the button that it contained in a canvas. But I have a problem. I want the image of the vertical line (contained in the canvas) to occupy the entire map at the top. Doesn't it take up everything because it is limited by the size of the canvas? How do I get the image of the vertical line inside the canvas (which is bigger) to cover the entire map screen?