这个教程的关键在于建立正确的球面映射(spherical map),使用到CC Sphere特效中的 raytrace capabilities 参数。 观看教程 在最后,VC中文站站长祝大家平安夜&圣诞节快乐!
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gauss spherical map 高斯球面映射
OpenLayers does not have the ability to re-project data itself, so all data included in a map must also be provided in Spherical Mercator projection.
OpenLayers本身并不具备重新投影数据的能力,所以包含在地图内的所有数据必须在Spherical Mercator投影内提供。
Now, thanks to a new collaboration with NASA, WorldWide Telescope has produced the most detailed spherical image of the heavens to date, along with a new 3-D, true color map of the surface of Mars.
现在,由于与美国航空航天局(NASA)的一项新合作,微软世界望远镜做出了迄今为止最详细的宇宙球面图,还有新的火星表面3D真彩地图。
Think about the difference between a flat paper map and a spherical globe.
试想下平面地图和球形地球之间的区别。
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