github地址：https://github.com/gdsestimating/three-dxf
Three-Dxf是一个浏览器dxf文件查看器应用，其使用https://github.com/gdsestimating/dxf-parser解析dxf文件（解析出json格式），并使用three.js来渲染。
首先，安装npm（安装node.js时会默认安装好npm，安装后会将npm和node命令默认添加到环境变量中）首先下载：
解压
在当前目录打开命令行
# first, compile three-dxf > npm install > npm run build # then install the sample's dependencies > cd sample > npm install # go back to the root and run http-server to run the sample > cd .. > npm install -g http-server@0.9.0 > http-server . # use `http-server -c-1 .` to prevent caching
此时，打开chrome浏览器：http://127.0.0.1:8080/sample/index.html
效果还不错，值得参考！
1 // See index.js in the sample for more details 2 var parser = new window.DxfParser(); 3 var dxf = parser.parseSync(fileReader.result); 4 cadCanvas = new ThreeDxf.Viewer(dxf, document.getElementById('cad-view'), 400, 400);