A particularly useful 'fill' function is the %imagefilledarc()% function, which can be used to make pie charts %imagefilledarc($img_r, $cx, $cy, $width, $height, $start_a, $end_a, $color, $style);% %IMG_ARC_PIE% - Fill as if it is a part of a pie chart %IMG_ARC_CHORD% - Fill up to the chord of the arc %IMG_ARC_NOFILL% - Currently only used with %IMG_ARC_EDGED% to indicate only the edges should be drawn (no real fill) %IMG_ARC_EDGED% - Outline (don't fill) when rendering