Taking the Heavenly Lake in Xinjiang for as a sample study , this article tries to use "Global Map-per software"to make 3D electronic sand -table by use of the free geographical information .% 文章利用 Global Mapper 软件,以新疆天池为例,介绍了如何利用公开免费的地理信息制作三维电子沙盘的简单方法。
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