Flow along surface

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on October 14, 2015 at 9:29am

Hi.

Typical "Box_morph" method was used. My unit mesh might be different than your thought.

Attachments:

• MorphGeometry.gh, 35 KB

Permalink Reply by Joseph Oster on October 14, 2015 at 10:47am

Most of this code is devoted to creating the diamond mesh instead of using the one provided (below).  Can you please discuss the difference?

Permalink Reply by Hyungsoo Kim on October 14, 2015 at 11:56am

Hi. Joseph.

Of course you can skip unit mesh part coding and use referenced rhino geometry.

As you can see in my screen capture, there are no gaps between morphed meshes.

And  if, in case there are too many divisions, using mesh is lighter..

Permalink Reply by Joseph Oster on October 14, 2015 at 12:17pm

I know "you can skip unit mesh part coding and use referenced rhino geometry" - I just did it in the post above.  I was wondering about the reasons and difference?  Thanks.

Permalink Reply by Kim hauer on October 14, 2015 at 12:51pm

Hi Kim

Question: How do you join or weld all the individual geometries into a single piece of geometry. So I can perform a Catmull-Clark subdivision on the entire surface?

TIA!

Permalink Reply by Hyungsoo Kim on October 14, 2015 at 1:23pm

Weaverbird's join meshes and weld should work.

Permalink Reply by Kim hauer on October 14, 2015 at 4:46pm

Thanks Kim!

one more question please :)

A revolved 360 surface when thickened in WB, creates a seam in the geometry, do you have any idea about how to this geometry can be rejoined seamlessly?

TIA!

Permalink Reply by Joseph Oster on October 14, 2015 at 2:30pm

I have no idea what a "Catmull-Clark subdivision" is... but using a brep for the 'Morph' input instead of a mesh allows a simple brep 'Join' to get the resulting polysurface.  I extracted the vertices from the GH constructed mesh posted by Hyungsoo Kim, baked them, manually drew some curves from them in Rhino to create the "panel" using "Surface from network of curves":

Attachments:

• MorphGeometry_2015Oct14a.gh, 27 KB

Permalink Reply by Stephen Maher on October 14, 2015 at 2:47pm

Jospeh,

The Catmull–Clark algorithm is a technique used in computer graphic...

Kim is referring to the [wbCatmullClark] component in the Weaverbird library (see below).

Permalink Reply by Joseph Oster on October 14, 2015 at 2:59pm

Thanks.  I didn't see anything about meshes in the OP so thought it was a distraction from the "Flow along surface" question, which is interesting by itself, without Weaverbird.

Permalink Reply by Kim hauer on October 14, 2015 at 5:06pm

Hi Joesph

Sorry to interrupt: Meshman is one of the few programs that not only does exceptional subdivision, (FREE D/L) at http://www.holmes3d.net/graphics/meshman/
In addition:
If your Rhino created .OBJ file can't be opened in Meshman, Its because there is an opening in the mesh, which, means that the mesh can't be used, should you want to use it for 3d printing.

Permalink Reply by aim on October 15, 2015 at 6:38am

Thanks a lot!