【摘要】 利用点的三角形化构建一个三维地面模型,设计了一个基于边折叠的LOD算法,该方法不需任何计算能达到快速实现模型的渐进式还原,大大提高了三维显示速度,最后调用OpenGL函数有效地显示三维地形模型。更多还原

【Abstract】 Use TIN to create a three dimension digital earth model.A LOD algorithm,based on Edge-ellaspe,has been designed in this paper.Through this method,the model can be progressively reduced without any caculate,which ehanced the speed of three dimension displaying rapidly.In the end,call some OpenGL functions to display the three dimension model effectively.更多还原