3D Coordinates to Mesh with Vertices and Faces
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Hello. I have a set of 3D points in an multidimensional array (XYZ) which need to be converted into some kind of mesh (ideally with vertices and faces), which can then be converted into a binary volume.
What is the best way to go about this? Any suggestions or examples would be great, thanks.
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Answers (2)
KSSV
on 9 Jun 2017
Edited: KSSV
on 9 Jun 2017
That case you have to look into delaunay and griddata
% some random data
N=20;
x=rand(N,1) ;
y=rand(N,1) ;
z=rand(N,1) ;
tri=delaunay(x,y);
trisurf(tri,x,y,z);
3 Comments
KSSV
on 9 Jun 2017
I suggest you to use this package: https://in.mathworks.com/matlabcentral/fileexchange/25555-mesh2d-delaunay-based-unstructured-mesh-generation
Pavel Onishchenko
on 28 Oct 2020
try this:
shp = alphaShape(points(:,1),points(:,2),points(:,3));
where points is Nx3 xyz matrix.
also you can get elements and nodes matrixes via
[elements,nodes] = boundaryFacets(shp);
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