Xtools,可以看作ArcGIS的一个扩展模块，不过是free的，一些高手的杰作，可以完成 Calculate Area, Perimeter, Length, Acres, Hectares Transfer / Convert Selected Features Convert Multipart Shapes To Single Part Convert Polygons to Polylines Make One Polygon From Polylines Make One Pol
The techniques described here grew out of my disenchantment with C++ when I needed object-oriented techniques to implement an interactive programming language and realized that I could not forge a portable implementation in C++. I turned to what I k
