基于Global Mapper的地貌晕渲图设计与制作

摘要

地貌晕渲图是指利用数字高程模型（ DEM）来生成，可以很好地反映地形、地势的变化，具有较好立体感的地图。本文以地貌晕渲基本理论为出发点，利用Global Mapper软件实现对制图数据的地貌晕渲图自动生成。对制图区域内的地形地势特征，地貌晕渲图在计算机上实现的关键技术，整体性考虑对地貌晕渲图效果的影响，合理分析设置Global Mapper软件中的各类参数，并利用Photoshop软件对地貌晕渲图进行调整。%Hillshade map is made using the digital elevation model ( DEM) to generate, is a good way to response the change of the terrain, has a good depth map.According to hillshade basic theory as the starting point,using the Global Mapper within cartographic data hillshade automatic generation process.Terrain features of mapping area, key technology of hillshade share on the computer, The influence on the effect of holistic consideration of hillshade map , analysis of setting reasonable Global Mapper of all kinds of parame-ters, then use Photoshop adjust to hill-shading map.