QT GUI的3维等值线绘制~使用open gl绘图,QT GUI for 3-D contour mapping ~ use open gl graphics

用vb编写的可读取和显示DXF文件格式的程序,解压缩后可见源码.,Prepared to use vb to read and display DXF file format of the procedure, we can see that the extracted source.

根据导入得dem（固定路径），生成等值线图（2维），是地形图绘制，DTM三维可视化较好的例子，但要转三维还要继续努力！-According to import must dem (a fixed path), generate the contours (2-D) is the topographic mapping, DTM three-dimensional visualization of a better example, but to change to 3D must continu