New method to reorganize CAD model concerning visualization
顾及高效可视化的 CAD模型数据重组织方法 *

This paper presented a new method to reorganize CAD model data, which aimed at solving the problems of visuali-zing CAD model data inefficiently. The accuracy of CAD model data might be very high, and rendering effects could be realis-tic, so it was broadly applied to virtual reality, real-time simulation and 3D geographical information system and so on. However, goemetric data of CAD was highly complex and image data was very large, which leaded to low-efficiency of visua-lization. In order to solve this problem, this paper used a series of strategies. For example, beforehand calculated visualization information, and high-tightly organized data, and concerned graphic hardwares and softwares. Because of these solutions, the efficiency of rendering geometric model and generating the texture was improved over 10 times. Furthermore, this technique was successfully applied to a virtual-touring system in Hong Kong.