plane activex control, using visual c++, that display a chart in 2d view with tarnsparent bk option and axis, grid, points mark, join lines and text color selection,

用Visual C＋＋实现二维等值线的COM组件的源码，感兴趣的朋友可以看看。-Using Visual C++ 2D contour of the COM component source, interested friends can see.