To improve the rendering efficiency of terrain, the method of inter-rotating connection triangle strip generation algorithm for raster terrain tiles is put forward, as well as the strip-optimized oriented triangle strip generation algorithm for TIN terrain tiles is introduced. 4. 为提高地形绘制效率,针对规则格网地形瓦片提出了内旋连接法三角形条带生成算法,针对TIN瓦片模型引入了面向条带优化的三角形条带生成算法。