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Question

我想从点云创建一个stl文件。在表面重建之后使用泊松我可以获得stl文件但是它是封闭的（额外的表面）。我的实际点云未关闭，如何删除顶部和底部的额外表面附件是截图。

http://s13.postimg.org/9mtr0jgxz/snapshot00.png

http://s13.postimg.org/tsx8zfclj/snapshot800.png

Answer 1

Meshlab offers tools to delete vertices and faces. Just pick the vertex / face selector from the toolbar (see screenshot) and then delete the faces using delete tool on the very right side.

Note that there is a known bug (for years actually) where the frame rate drops on some PCs that makes the selection of vertices impossible (http://sourceforge.net/p/meshlab/bugs/348/). Installing the latest beta solved the problem for some people.

If nothing helps you can also use other mesh manipulation tools like blender.