Edge extraction from a voronoi tessellation

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Tonino Nucifora 2020-10-19

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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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Sarvani Panguluri 2020-10-22

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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 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.