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。
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.
svg：可缩放矢量图形(Scalable Vector Graphics, SVG)是一门用XML描述二维图形和图形应用程序的语言。
SVG: Scalable Vector graphics (SVG) is a language for describing two-dimensional graphics and graphical applications in XML.
将图像转换为矢量图形，由计算机提取图形节点坐标形成二维点集矩阵。
The image is converted into vector and sketch node coordinate is withdrawn automatically by computer, two dimension the point gather the matrix is formed.
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