Boundry curves from mesh colors

Hello everyone,

I am currently generating a structural surface and analyzing it with Karamba. This analysis has given me areas where material can be substracted (white).

So what I need to do is make holes in the white areas of my mesh.

How can this be achieved?

Thank you.

Attachments:

Mesh.gh, 18 KB

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on May 31, 2017 at 5:02pm

Check this out.

Attachments:

Mesh_rev1.gh, 23 KB

Permalink Reply by ShynnSup on May 31, 2017 at 7:22pm

Hey Hyungsoo, thanks this is pretty much what I was aiming for, but could there be a way of making smooth curves from these color differences and then simply make wholes with those curves? The pointy geometry culling faces causes is not ideal. Thank you.

Permalink Reply by Hyungsoo Kim on May 31, 2017 at 10:14pm

Hey dude,

Enable "Preview Mesh Edges"(Display-->Preview Mesh Edges(Ctrl+m)) and check the state of the edges of your mesh.

Are you familiar with Mesh?

If you want to make holes regardless of your mesh edge configuration, you'll have to tear apart your mesh arbitrarily regardless of colours of mesh faces.

Of course more subdivision and smoothing of your original mesh before colour analysis would help to get more smoothed edge curves.

Attachments:

Mesh_rev2.gh, 25 KB

Permalink Reply by ShynnSup on May 31, 2017 at 10:19pm

Indeed, I understand. But just as a alternative method woudnt it be posible to convert the mesh into NURBS surface and then make then make the holes?

Permalink Reply by Hyungsoo Kim on May 31, 2017 at 10:29pm

Converting to a "Nurbs polysurface" with a bunch of tri-faces is pretty easy but not in case a single nurbs surface.

Then how about your colour informations? Are you going to just ignore?

Permalink Reply by ShynnSup on June 1, 2017 at 7:08am

Nono, I saw somewhere it was posible to do the "contour lines" of a mesh (ladybug related) so in that sense, convert the mesh to polysurface, but previously create a boundry curve from the color info of the mesh, and then split the polysurface

Permalink Reply by Laurent DELRIEU on May 31, 2017 at 11:12pm