【摘要】 为了解决在多山地区地形三维建模过程中数据采集难度较大的问题,采用格网地形建模方法,充分利用该地区已有的数字化地形图,结合格网法地形建模的数据结构简单,数据存储量小等优点,研究提出了一种地形三维建模方法．并实现模型的可视化。研究结果表明:利用数字化地形图来替代传统的地形三维建模的数据获取方法,有助于快速、高效地构建多山地区的地形三维模型。更多还原

【Abstract】 In order to solve the problem of collecting the datum to construct 3D terrain model in mountainous areas , using grids, the article brings forward a new method of construction of 3D terrain model and visualization by using the exiting terrain vector graph, and considering the advantages of grids whose data structure is simple and the storage of data is small. The results obtained show that the use of the exiting terrain vector graph replacing raditional method of collecting the data can help to construct 3D terrain model in mountainous areas rapidly and efficiently.更多还原