The technique route is studied of renewing of GIS foundation mapbase, combining with the renewing of foundation mapbase to the urban geography information center of Changzhou planning bureau.
本文主要结合对常州市规划局城市地理信息中心基础图库的更新，探讨对城市GIS基础图库更新的技术途径。
2
With your selected pixel coordinates and a single-layer base reflectivity map, the logical process for detecting precipitation near a spot on the map is straightforward.
使用选定的像素坐标和单层基本反射率图，检测地图中某个场所附近的降水的逻辑过程将十分简单。
3
The base topic and map types are general and flexible so they can accommodate a wide variety of readable information.