This is a snippet that could be used in a paint program. To use it, click anywhere on the screen (while it is not drawing a circle or ellipse!) to initiate a center point for your shape. Then, keep holding the mouse down to set the boundarys for your shape, then let go! The program takes the initial click point to be the center (x and y) then updates the size factors while the mouse if held down by: abs (x-x mouse) / radius of perfect sine/cosine circle (here it is 100) and abs(y-y mouse) / raduis... Then draws a circle at x+sin*x factor and same for y with cosine
