摘要
传统的实地测绘地形图不仅需要耗费大量的人力、物力和财力,而且需要大量的时间,为了节约成本和实现三维效果的显示,可以充分利用已有的地形图资料,将其快速转变为数字地形图,从而建立三维地形景观图。该文以绵阳市为例,利用地理信息系统软件,通过DEM与遥感正射影像图DOM叠加,探讨了基于1∶1万地形图三维景观的建立方法,实现步骤及其简单功能的效果实现。该方法有利于研究和预测、预防地质灾害的发生,有利于从整体上对绵阳地形有更为直观的了解,便于从宏观上对绵阳进行统筹规划。
Due to its advantage of time and cost saving, digital topographic maps are increasingly popular. Taking Mianyang City as an object, this paper builds 3D landform landscape map by superimposing DOM on the DEM to visualize the complex terrain of the research area to help forecast and prevent geologic hazards as well. Additionally, there is no doubt that the overall planning of Mianyang City will be more scientific in this way.
出处
《绵阳师范学院学报》
2009年第8期93-98,共6页
Journal of Mianyang Teachers＇ College
关键词
三维景观
配准
拼接
矢量化
叠合
3D landscape
registration
splicing
vectorization
superimposing
