Extracting 2D plane values from a 3D mesh

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Abhishek Saini
Abhishek Saini 2018 年 12 月 16 日
コメント済み: Walter Roberson 2018 年 12 月 18 日
I have 3 arrays (x,y,z) of size 243,528,000 each. These array have coordinates in x,y and z respectively. I want to extract the data in the 2D plane (say yz plane values at x = 2) from the 3D mesh. These x,y,and z arrays are used to create 3D mesh. How to perform this.

回答 (1 件)

Walter Roberson
Walter Roberson 2018 年 12 月 17 日
If you have vectors of values, then scatteredInterpolant() or griddedInterpolant()
However in your earlier question you were dealing with a regular mesh that for whatever reason had been reshaped into vectors. If that is still the situation then you should rearrange back into a 3D shape instead of working with scattered points.
Is your grid 1825 * 2085 * 64 ?
  4 件のコメント
Walter Roberson
Walter Roberson 2018 年 12 月 18 日
If the input is the full 243528000 and the grid is regular, then reshape and indexing will be much much faster.
Otherwise, use logical masks comparing to the x y z bounding box of the notch to select a small subset of the points, which you can then compare against the detailed polygon.

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