osg
http://www.osgchina.org/
https://github.com/openscenegraph/OpenSceneGraph
http://docs.osgearth.org/en/latest/
https://github.com/gwaldron/osgearth
服务
https://github.com/opensourceBIM/BIMserver
https://github.com/yorikvanhavre/BIM_Workbench
https://github.com/opensourceBIM/BIMsurfer
恒歌
技术选型：
前端：cesium、osg、qt、vue
other
https://github.com/techsoft3d/bim_viewer_tutorial
https://github.com/SEUZFY/BIMConvertToGeo
https://github.com/donalffons/opencascade.js
https://www.sohu.com/a/524793964_100237201
https://github.com/OpenWebCAD/node-occ
https://github.com/zalo/CascadeStudio
https://github.com/google/model-viewer
https://github.com/f3d-app/f3d
https://github.com/cesiumlab/XbsjEarthUI
https://github.com/xeokit/xeokit-sdk
https://github.com/openscad/openscad
https://github.com/OGStudio/openscenegraph-cross-platform-guide
开源绘图软件
https://github.com/FreeCAD/FreeCAD
https://github.com/Macad3D/Macad3D
https://github.com/fougue/mayo
// 平台
https://www.sohu.com/a/524793964_100237201
// 服务
https://github.com/opensourceBIM/BIMserver
https://github.com/yorikvanhavre/BIM_Workbench
https://github.com/opensourceBIM/BIMsurfer
//
https://github.com/techsoft3d/bim_viewer_tutorial
https://github.com/SEUZFY/BIMConvertToGeo
https://github.com/donalffons/opencascade.js
https://github.com/OpenWebCAD/node-occ
https://github.com/zalo/CascadeStudio
https://github.com/google/model-viewer
https://github.com/f3d-app/f3d
https://github.com/cesiumlab/XbsjEarthUI
https://github.com/xeokit/xeokit-sdk
https://github.com/openscad/openscad
http://www.osgchina.org/ueditor/php/upload/file/20201223/1608688488737443.pdf
http://www.osgchina.org/ueditor/php/upload/file/20201223/1608688498656795.pdf