I have a chart with a picture as a background. The picture divides the chart in 4 areas (line to separte above 5 and below 5 on X axe and same on the Y axe). Now if I zoom I want to zoom the picture as well that the dots remain in the same "area" on the picture (the same as with google maps).
But how do I make my picture dynamic? If I search I can only find googlemaps and nothing about zooming in on a static picture.