实现了鼠标交互的所有功能,包含对绘制的图形通过鼠标滚轮进行无极缩放以及任意拖动.-Mouse interaction achieved all the features included on the map graphics through mouse wheel to zoom Promise and arbitrary drag.

直线、圆、椭圆二维图形的生成。直线的生成算法有DDA、Bbresenham、point,圆的生成算法有bresenham等 此系统还包含裁剪操作。 曲线的生成算法：bezier曲线 三维操作:三维物体旋转变化、穿越三维空间、虚线三维空间-Straight, round, oval to generate two-dimensional graphics. Straight-line algorithm to generate the DDA, Bbresenham, point, c

直线、圆、椭圆二维图形的生成。直线的生成算法有DDA、Bbresenham、point,圆的生成算法有bresenham等 此系统还包含裁剪操作。 曲线的生成算法：bezier曲线 三维操作:三维物体旋转变化、穿越三维空间、虚线三维空间-Straight, round, oval to generate two-dimensional graphics. Straight-line algorithm to generate the DDA, Bbresenham, point, c

VC++适时动态曲线绘制并打印及预览，源码包包含一个DLL组件的源代码，本程序可适时生成统计曲线，并预览、载入外部数据、存盘、打印图形等功能-VC++ timely and dynamic curve drawing and print preview, source code package contains a DLL component of the source code, the program can generate timely statistical curve, and pr