Mesh Relaxation

Replies to This Discussion

Permalink Reply by David Stasiuk on November 20, 2013 at 4:28am

Can you post your definition?

Permalink Reply by Alexis Church on November 20, 2013 at 4:49am

I messed around with various mesh detail options as well as various combinations of what's shown in grasshopper.  I imagine it has to do with the mesh itself.

Thanks.

Attachments:

• relax_try1.gh, 25 KB
• Relax_Try1.3dm, 81 KB

Permalink Reply by David Stasiuk on November 20, 2013 at 5:35am

Well...what exactly are you trying to get out of the mesh relaxation? From your current setup it looks like you're trying to fix the naked edge curve of your mesh and through the relaxation process want the mesh to flatten and for the various interior edges to find their minimum size relative to each other. If this is what you're trying to do, your first setup is really close to working.  It's off only because of how you're using the naked vertices component...you're actually passing the point object (NakedPts) into the "i" input on your List Item...the list item is looking for an index, so it's messing up its interpretation. Here you should replace the NakedPts with the NakedI output. Alternatively, you could eliminate the List Item altogether and just plug your NakedPts directly into the AnchorPoints input in the kangaroo engine.

In your second setup, the reason it isn't working is because your four corner anchor points are just floating in space. The simulation is keeping them anchored...it's just that they aren't attached to any of the other springs which, as they approach zero length, have nothing stopping them from becoming infinitesimally small. If you want to anchor four points around the outside edge, just make sure that your points are in direct contact with the vertices on the mesh that you want to constrain.

Permalink Reply by Alexis Church on November 24, 2013 at 12:38am

Thank you for all your help.  My whole idea in this was to investigate the tool and how it affects meshes (to be applied to much more complicated project).  But in all my messing with it, I have yet to see any simulation being run.  I've approached it in various manners from various tutorials, with various beginning meshes and have yet to see it change form.  

I broke it down to a simple planar mesh where I expect the form to change to a curved, heightened form anchored at the corners.

I'm wondering if it's still me missing something or if I could possibly be missing a plug in.

Any thoughts you have may help.

Thanks in advance!

Attachments:

• Mesh_Kangaroo.3dm, 48 KB
• Mesh_Kangaroo.gh, 10 KB