curve segments or points to mesh

Replies to This Discussion

Permalink Reply by Jon Mirtschin on January 4, 2014 at 2:13am

Hi Qiushi,

You haven't posted your grasshopper file so it's hard to say with certainty but the first thing to try is to flatten the data tree of curves into a list of curves.  If you have data on different branches it won't generate a mesh.

Let me know if it helps or not,

Jon

Permalink Reply by qiushi on January 4, 2014 at 2:51am

Thanks, Jon.

Here is the grasshopper file.

After flatten, it looks better, but still some miss faces.

Attachments:

• surface for structure pattern.gh, 132 KB

Permalink Reply by Jon Mirtschin on January 4, 2014 at 4:32am

A lot of these perimeter curves deviate a long way from planar (along the bottom edges), I'd recommend to add some more segments along this edge.

You can get a better (but still not perfect from what I saw) result making 4 (or 3) edge surfaces as per the attached.  Hope it helps. 

Attachments:

• surfaceforstructurepattern.gh, 83 KB

Permalink Reply by qiushi on January 4, 2014 at 1:26pm

Hi Jon, Thank you very much for your patient reply!

Yes, it looks better.

I tried to understand why you use list item and the clean tree component, but I didn't get it?

and by adding more segments, do you mean I should add more curves to avoid the non-planar surface around the corner?

Permalink Reply by Jon Mirtschin on January 5, 2014 at 2:32pm

I wanted to use native grasshopper components, and I've only seen a "create surface from 2,3 or 4 edges" component that has individual inputs.  I wanted the data tree for the 4th edge to not exist when only 3 edges (I didn't test if it worked without this).

Personally I would have created a script component the replaced the 6 highlighted components.  This would take a list of curves as an input and achieved the same thing but as many users aren't confident with scripts, I only use them when necessary for models to help others.

Yes, I meant to add more curves along the edges to avoid non-planar around the corner.  You might find the original solution with my component might work better then.

Cheers,

Jon

Permalink Reply by qiushi on January 5, 2014 at 2:44pm

OK!

I get it!

Thank you so much!