3D Coordinates to Mesh with Vertices and Faces

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Jason Bond
Jason Bond 2017-6-8
评论： Pavel Onishchenko 2020-10-28
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.
  2 个评论
KSSV
KSSV 2017-6-9
How your XYZ data is? Gridded or scattered? Solutions depends on that.
Jason Bond
Jason Bond 2017-6-9
Hello. My data can be divided into three X, Y, Z vectors. I can view this using Scatter3.

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回答（2 个）

KSSV
KSSV 2017-6-9
编辑：KSSV 2017-6-9
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);
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Pavel Onishchenko
Pavel Onishchenko 2020-10-28
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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lokesh kumar
lokesh kumar 2019-8-25
i HAVE THE TRAINGULATED DATA, How to plot into surf

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