Introduction - If you have any usage issues, please Google them yourself
1. Easy metafile generation (such as linear, round, rectangular, etc) 2. Using DDA algorithm or the mid-point (Besenham) algorithm achieve a straight line segment, draw an oval or round 3. Scanline fill algorithm used to populate the region, with Sutherland reduction of polygon clipping algorithm 4. BEZIER curve or B-spline Curve 5. personalized graphics package development 6. all documents, including source code and screenshot