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WebCAD/sample/select.md

469 B

1.使用八叉树过滤大部分搜索.

2.拦选. ->使用Box求交(提前过滤.) ->点在盒子内部() ->使用线相交(只要保证线相交就OK) End

3.框选 ->使用box包含(提前过滤) End

使用GPU优化

https://github.com/electricessence/ThreeBSP https://github.com/chandlerprall/ThreeCSG

#平截头体 https://stackoverflow.com/questions/27295415/three-js-select-tool-how-to-detect-the-intersection-of-a-2d-square-and-3d-obj/37136190#37136190