Polygons from curves problem

[samuele.silvestri]

Hello everyone,

I’m trying to find the polygons that result from the intersection among Voronoi and the curves generated by a Plug-in (Physareum), to create inside another Voronoi. Do you know how to do it?

Thank you so much,

Samuele

[laurent_delrieu]

Hello
somebody probably knows but it more simple to help if you provide more usable informations.
You could provide a script containing curves internalized, and if possible without plugin.
A little drawing of what you really want will also be helpful. No there but some

See

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[samuele.silvestri]

Thank you @laurent_delrieu for the tip! Sorry, first post here

I attach the script PolygonsFromCurves.gh (2.7 MB)

This is what I’d like to do, identify the polygons in the intersection among Voronoi and Lines of Physareum

Thank you

[laurent_delrieu]

Hello
I think you misused Voronoi term. For the drawing I don’t seem a lot of Voronoi cells!
In the script there are no points for the Voronoi Diagram.

Your problem could be solved using Surface Split component or using this discussion

From edge bundling / wooly paths to surface between

Thanks for the tip and the good exercice. I took a look to this problem, I used mesh instead of surface, so faces acts like pixels, I made a little C# in order to have the difference between two subsets. The list of face number (0 to n-1) and the list of faces intersecting the curves. All others component must be legacy Rhino. It tooks 15 s with 32 000 points, length of 1 15 s with 120 000 points, length of 1 105 s with 962 000 points, length of 0.5 [image] [image] [image] If you want …

[samuele.silvestri]

Wow thank you so much! That’s super!! I’m trying to figure out the solution

[samuele.silvestri]

It’s still not so precise, how can I make it better?

[laurent_delrieu]

You can surely put a more dense Mesh, so in W and H of the plane mesh put bigger numbers. Surely that.

[laurent_delrieu]

The smoothing also changes the results.

You are at the command, you can offset roads if curves are roads. You can inflate the polygon in order to touch the curves.
Try to go through the script and understand how it works. Use the green button

PolygonsFromCurves.gh (2.7 MB)