Volume of irregular shape

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Meh
Meh on 6 Aug 2015
Answered: Steven Lord on 6 Aug 2015
I have for example X,Y,Z coordinates of 8 points which form an irregular shape. How can I calculate the volume with in this shape? Eg. coordinates area:
0 0 384,67
0 26,6 385,25
-47,85 26,6 385,9
-47,85 0 385,3
0 0 387,32
0 26,6 387,32
-47,85 26,6 387,32
-47,85 0 387,32

Accepted Answer

Torsten
Torsten on 6 Aug 2015
Edited: Torsten on 6 Aug 2015
  4 Comments
Meh
Meh on 6 Aug 2015
Thanx
Gregory Vernon
Gregory Vernon on 6 Aug 2015
This answer assumes that your volume is convex. If your volume is concave, this method will return a larger volume. If you know the connectivity, and your volume is orientable, you can use the method outlined here:
https://en.wikipedia.org/wiki/Polyhedron#Volume (see "Orientable Polyhedra") https://en.wikipedia.org/wiki/Orientability

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More Answers (1)

Steven Lord
Steven Lord on 6 Aug 2015
Construct an alphaShape from your data then call VOLUME (since this is 3-D data) on the alphaShape.

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