Edge extraction from a voronoi tessellation

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Tonino Nucifora
Tonino Nucifora 2020-10-19
评论： HG 2021-6-14
Hello everyone,
I'm having a lot of problems about extracting edges from a random Voronoi tessellation.
Would any of you know how? Is there any function that allows you to do this?
Thank you.

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回答（1 个）

Sarvani Panguluri
Sarvani Panguluri 2020-10-22
Hi,
can you specify what you mean by "a random voronoi tesselation"?
Are you creating a 3D voronoi tesselation and trying to extract its edges?If so, Using voronoin /VoronoiDiagram functions output arguments,
[v,c]= voronoin(P); % P is matrix with coordinates
returns matrix v which represent Vertices of edges and a cell array c where each element of c containes the row indices of the Voronoi vertices v that make up a Voronoi cell.
v(c{i},:)
would return the vertices corresponding to cell number 'i'
You can refer to this Computing the Voronoi Diagram for more insight
Hope this helps!
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Tonino Nucifora
Tonino Nucifora 2020-10-22
So the edges are already contained within the patch? Don't need a matrix to extract the sides of the various polygons? And also is it possible to convert this into an STL file? Thank you.

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