How to organize random 3D point cloud data to a collection of 2D slices

Question

David 2012-9-13

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https://ww2.mathworks.cn/matlabcentral/answers/48096-how-to-organize-random-3d-point-cloud-data-to-a-collection-of-2d-slices

回答： Ebube Ezi 2018-11-23

Hello,

I am trying to convert a random 3D point cloud from a laser scanner to a series of 2D slices - made of points - running along one axis. To state it another way, I want to take the point cloud and turn it into a 2D polygon of points and stack those polygons together. Imagine stacking CD's on a spindle - similar to that.

I understand how to do it, but I was wondering if there was code already written to do this. Does anyone know?

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Answer 1

Sean de Wolski 2012-9-13

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https://ww2.mathworks.cn/matlabcentral/answers/48096-how-to-organize-random-3d-point-cloud-data-to-a-collection-of-2d-slices#answer_58728

Sounds like you may want a three-d delaunay triangulation:

doc DelaunayTri

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Answer 2

Ebube Ezi 2018-11-23

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https://ww2.mathworks.cn/matlabcentral/answers/48096-how-to-organize-random-3d-point-cloud-data-to-a-collection-of-2d-slices#answer_348524

Hi David, sorry this is not an answer to your question but what you've done is exactly what I want to do, Please could you help with info on how you did it. Thanks