Introduction - If you have any usage issues, please Google them yourself
1) line generated content: draw a straight line using the Bresenham algorithm requirements: manifested establish grid coordinate system with a rubber band in the form of input parameters mouse to move the pixel grid, the current mouse position display discriminant calculation process and the selection of the next point strategy record generating point coordinates, it is recommended the table form graphics generation process may be repeated 2) of the arc-generated content: Bresenham algorithm drawcircle requirements: ᠊