可以导入3ds 模型 到 opengl 程序中 编成环境保护可为 vc 6.0 导入的基本代码 -Opengl 3ds model can be imported into the program for the Environmental Protection compiled the basic code into vc 6.0

计算两根避雷针滚球半径，根据滚球半径对避雷针惊醒选型，以达到良好的防雷效果-Calculation of ball radius, the ball radius on the lightning woke up selection, in order to achieve good lightning protection effect