I have a set of 3d data point (x,y,z). I am trying to get the volume of space that the points encompass. 1. I used shp = alphashape(x,y,z) to plot the coordinates and then used Volume(shp) to get a volume. 2. I used [tritdx,V]=convhull(x,y,z) to get the volume of the space. 3. I used delaunay Triangulation (x,y,z) and then [K,V]=convexHull(DT) to get a volume.
2 and 3 both report the same value for the volume (5.0779e+5) 1 reports the volume as 5.4956e+4
Which option is the correct one for calcuating the volume of 3d space using (x,y,z) coordinate points?
Thanks
Best Answer