地图数据,使用java进行shp文件的分析，绘制地图-Map data analysis shp file using java map

java dwg文件的读取,写入开发包.读取dwg使用当前库非常方便，测试代码和jar都有-java dwg file to read, write, development kits. read dwg current library is very convenient to use, test code and jar have