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Extracting point cloud from patch model

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Alla
Alla 2017-6-5
评论： KSSV 2017-6-8
Hi everyone, So I have a model I created using patch function and I need a point cloud of said model to play around with the depth information, so I was wondering if it is possible or not to extract a point cloud from a model and if yes how would I go about on doing so?
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Walter Roberson
Walter Roberson 2017-6-7
The patch object does not store the surface points, only the vertices.
KSSV
KSSV 2017-6-8
If you have the vertices in hand..you can create the surface using meshgrid.

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Walter Roberson
Walter Roberson 2017-6-6
There are two ways of constructing patch objects.
  • For one of them, you can fetch the XData, YData, and ZData properties. Each column represents a face, so there are as many rows as the longest face; shorter faces have NaN to pad them out
  • For the other, more efficient one, you can fetch the Vertices property to get a matrix in which each row defines a unique point. The Faces property gives information about how the vertices are connected.

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