摘要： 介绍了在电磁兼容仿真软件开发过程中，如何利用ＯｐｅｎＧＬ技术绘制系统载体以及在载体上用鼠标随意绘制干扰源或敏感设备．并详细介绍了在载体进行几何变换后如何获取所绘设备相对载体的坐标．

关键词: OpenGL, 坐标变换, 电磁兼容

Abstract: During developing the EMC emulation, how, to draw a 3D object model and arbitrarily change the coordinates of device which is laid on the model by using OpenGL is introduced to the paper. Acquiring the davice's coordinates in the model after geometric transform is discussed.