How to create the topography according to these lines on a plane？

How to create the topography according to these lines on a plane？

Maybe the logic is based on the density of these lines? I don't really know...

Looking forward to your HELP!!! THX!!!

Replies to This Discussion

Permalink Reply by Laurent DELRIEU on June 3, 2017 at 10:32am

You surely could find that interesting

http://www.grasshopper3d.com/forum/topics/grid-spreading?id=2985220...

http://www.grasshopper3d.com/forum/topics/grid-spreading-1

Permalink Reply by youkou on June 3, 2017 at 10:38am

Thx for reply! I have gotten the spreading lines like that shown in the first image.

But I still wonder how to create the geometry model like the last image through these spreading lines...

Permalink Reply by Laurent DELRIEU on June 3, 2017 at 10:52am

See Joaquim Filipe Reis work

http://www.grasshopper3d.com/photo/jfr-twirl-surface-1?xg_source=ac...

Permalink Reply by youkou on June 3, 2017 at 10:56am

Okay！I will see that！

Permalink Reply by youkou on June 3, 2017 at 11:02am

That’s a really cool work！Em...but maybe still different from what I want to achieve...

I have the lines in 2D，don't know how to give them z value to make them in 3D according to the different densities，then loft them. Maybe not the twirl surface...

Thanks！！！

Permalink Reply by Joseph Oster on June 3, 2017 at 2:33pm

Without posting your lines here, I don't know if this will work but... What if you intersected your lines with an array of parallel lines at roughly right angles, then interpret the distance between intersection points as altitude? I guess that assumes you already know the altitude of the intersection points on the first curve... I don't really know without trying.

P.S. I don't know how one decides that a "slope" is going up or down...?

Permalink Reply by youkou on June 3, 2017 at 2:39pm

THXXXXXX!!! I will post the lines soon！

Permalink Reply by youkou on June 3, 2017 at 2:46pm

HERE ARE THE LINES

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