mesh thicken problem

Replies to This Discussion

Permalink Reply by Laurent DELRIEU on July 9, 2017 at 2:24pm

Your mesh doesn't work because it is like a Moebius. So normals could not be unified. 

I looked at you file, I tried many strategies. I manage to make it work 

1. First I recalculate normals, I used Sandbox plugin for topology. So normal at a point is approximated by the normal of a plane passing through neighbour points
2. Each face is then offseted in 2 directions with a unified direction for each point of the face
3. faces are then merged in meshes. I can't have to meshes. 

It is not closed yet. I applied a strategy here that I can't reproduce. You will have to bake polylines and put the in 2 separates lists. Sorted on Z for example. The idea is to make a quad using 2 segments of polyline. 

http://www.grasshopper3d.com/forum/topics/how-to-create-this-kind-o...

Attachments:

• thicken moebius quad mesh.gh, 23 KB

Permalink Reply by Laurent DELRIEU on July 9, 2017 at 2:53pm

Update 

Totally thicken, but not possible to thicken too much. This will lead to self intersections (if not yet ?)

Your geometry allows to sort quite easily the curves in order to have a low level and an upper level curve. It could be possible to add a middle one a bit more wide ....

Permalink Reply by Laurent DELRIEU on July 9, 2017 at 2:56pm

With the good file. 

And you need Sandbox and Weavebird (that I understood you have)

P.S : the address of your internet page is not the good.

Attachments:

• thicken moebius quad mesh.gh, 390 KB

Permalink Reply by mohsen marizad on July 11, 2017 at 9:27pm

((P.S : the address of your internet page is not the good.))

I didnt understand this, where do you mean? my website?

Permalink Reply by Laurent DELRIEU on July 11, 2017 at 10:03pm

On your grasshopper there is an Internet address for your company. This address doesn't work.

Permalink Reply by mohsen marizad on July 11, 2017 at 9:26pm

wow! its great, I never thought about this solution, its really smart. tnx a lot for your time and effort... its really interesting... the primitive mesh still it's not unify and it will not be... but by connecting two offsets we can unify the hole mesh by inside and outside unifying... great

 

Permalink Reply by Laurent DELRIEU on July 11, 2017 at 10:06pm

You could also use isosurface from millepede/monolith. You just need to supply a positive distance from your mesh. The only drawback is that it will be long to calculate for a good resolution.