Wrap all the lines

Hi all,

How can I form surface with lines (image 1), so the surfaces are wrapping all the lines and the surfaces are attaching to all the lines.

(Image 1)

Replies to This Discussion

Permalink Reply by David Rutten on August 15, 2014 at 2:20am

In what order should the surface wrap the lines? Is the surface allowed to exceed the outer hull of the line bundle?

Can you please post the actual 3D lines, it's hard to see how they are placed in space from the views.

Permalink Reply by Cathy Lui on August 20, 2014 at 4:23am

Hi David,

Yes I just want an object formed by outermost surface only.

Thanks for your reply!

Regards,

Cathy

Permalink Reply by Cathy Lui on August 27, 2014 at 12:00am

I thought i have added an attachment.

Please see the attached.

Permalink Reply by David Rutten on August 27, 2014 at 12:32am

There are no attachments anywhere in this discussion.

Click the [Upload File] button below the post text editor, then [Choose File]. Please only use 3dm, gh or zip files.

David Rutten

david@mcneel.com

Permalink Reply by Cathy Lui on August 27, 2014 at 12:56am

Hi David,

The file maybe too large so it stop loading at 52%...

Anyway, please find it here.

Thanks!

Permalink Reply by David Rutten on August 27, 2014 at 1:42am

Well, there's a 5MB limit, but a few lines should only be a few kilobytes...

I don't know why you're uploading 83 Megabytes, but I suppose I'll find out in ~10 minutes.

David Rutten

david@mcneel.com

Permalink Reply by David Rutten on August 27, 2014 at 1:58am

You included a lot of geometry in that file that didn't need to be there. That's why it took 2 days to answer this question instead of 15 minutes...

I picked a base plane for the convex hull manually, there may be a way to define it algorithmically in a way that works.

The result doesn't touch all the lines, the lines on the inside are ignored. I'm not exactly sure this is what you're after, but it's what I imagine 'wrapping' means.

Permalink Reply by David Rutten on August 27, 2014 at 2:00am

And the GH file with internalised line data.

Attachments:

wrap.gh, 8 KB

Permalink Reply by Cathy Lui on August 29, 2014 at 2:44am

Thanks David! You help me get so much closer.

Is there a way to make a planar surface with 2 lines and loop through the list of lines? For example, in a list of parallel lines, line1 create a surface with line2, line2 create a surface with line3, line3 and line 4..etc. It should be a way to avoid lines missing, but I have no clue to work it out in grasshopper.

Permalink Reply by David Rutten on August 29, 2014 at 3:27am

Yes, you'll have to shift the list of lines, then graft both lists and merge them. Then you should end up with a bunch if lists, each containing consecutive lines.

Permalink Reply by SA on August 21, 2014 at 4:23am