dxf 读取

代码说明：

应用背景Build Instructions: Make sure you have autoconf, swig, texinfo, python-dev, build-essential packages or equivalent installed via your package manager. cd libredwg ./autogen.sh && ./configure && make && sudo make install cd ../dxflib ./configure && make && sudo make install cd .. Once the above dependencies have been built, edit /usr/local/include/dwg.h, and rename the THICKNESS constant (or add _ to end). It conflicts with another constant included in the converter, but is not used itself. After that, just run "make". That"s it! 关键技术GNU LibreDWG 是一个免费开源的 C 库用来处理 DWG 文件，这