Introduction - If you have any usage issues, please Google them yourself
Graphics test the fourth test, scan-line algorithm. Raster graphics scan conversion with regional filling. Slightly remarkable depiction of the data structure and algorithm to achieve these steps: in order to realize P variability of scan conversion, first of all, take d = yin, mathematical symbols, not to write, easy to get scan line y = d above the focal point sequence x (string) This sequence has at scan line y = d on the number of deformation of the vertex P component.