标签:
http://www.qcad.org/en/ 和 https://github.com/LibreCAD/LibreCAD 都是开源的,可以拿去参考
http://www.qtcn.org/bbs/read-htm-tid-60154.html
QCAD和LibreCAD
原文地址:http://www.cnblogs.com/findumars/p/5686434.html