1·The thesis passes to two measures the research of the sketch, realizes completely of the sketch handles function. can make system proceeded the importation, output expediently and saving.
论文通过对二维矢量图形的研究，实现了全面的图形处理功能。使得系统可以方便地进行输入、输出以及存储。
2·As a mathematic branch studying the graphical composite relation and fabric, the graph theory can be expediently used in solving graphical problems with computer algorithm.
图论是研究图的组合关系及结构的一个数学分支，可以方便地实现图形同计算机算法的结合。