Mesh Division

Does anyone know how I can make a proper mesh division from an irregular outline (see image)? I've first tried to make a mesh using a surface which I then converted to a mesh, but the division of this mesh not nice. Since I want to use this mesh for a Kangaroo simulation, the mesh division needs to be proper.

Hope you can help me out here!

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Permalink Reply by Giulio Piacentino on July 26, 2012 at 2:28am

This is an example to transform a polyline similar to the one in mesh-subdivion-example.3dm into a usable mesh with the purpose of form finding. This transform the hexagon into a network of quads.

This is conceptually just this:

define the shape you want to mesh
find a topology that can fill it well. You might need to do this manually, or, like here, automatically. If you pass a group of polylines as input, Weaverbird treats them as single mesh faces
subdivide it as needed. wbCatmullClark only constructs quads from any input, so it might actually be used for this

Have a look if this is something similar to what you are trying to accomplish. Cheers,

Giulio Piacentino

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hex.gh, 3 KB

Permalink Reply by Giulio Piacentino on July 26, 2012 at 2:41am

This, on the other hand, is a result of manually creating the filling topology.

You can choose other combinations.

Giulio Piacentino

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hex-man.gh, 5 KB

Permalink Reply by Giulio Piacentino on July 26, 2012 at 2:46am

Here another, just for fun.

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man-hex-2.gh, 5 KB

Permalink Reply by Agnieszka on October 29, 2012 at 2:40am

Hello everyone in this discussion

I was looking for a solution to a mesh division problem I have

I would be extremely grateful if someone could have a look on this case?

I'm not very experienced GH user so maybe I'm trying to achieve something impossible or have a wrong approach?

please indicate whether it makes sense what I'm trying to do:

I'm trying to simulate a surface inflection like in the image below (the shape can be simpler if necessary)

I tried a simple definition that I found in the forum and adjusted it with kangaroo collide surf component to simulate the applied pressure

but:

1. the mesh comes out very edgy and behaves more like fabric than paper

while I need it as stiff and smooth as the paper model

2.another problem is that I need to apply a grid based pattern (refer to gh file) on it and have no idea how to start with it as the mesh has irregular division

is it possible at all with this kind of planar shape or I need to think of a more regular polygon?

any help would be much appreciated

Thanks

Agnieszka

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