基于地图数据库的变比例尺变换

The Design of Alterable Scale Based on the Database of the Map

通过变比例尺变换,可以使地图上重要的位置保持精确,次要位置产生局部变形,实现制图区域局部有目的放大或缩小,从而达到在有限的版面内适应扩大制图区域的目的。

According to the transformation of alterable scale, the important location of the map can be kept precise and the inferior location is led to partial distorting, the mapping region can be enlarged 玶 scaled down purposefully, which reaches the aim of extending region signed by mapping in the limited mapping domain.