Offsetting curves on a surface

How to offset curves on a surface ? When i try offsetting them, the result is multiple broken curves. I was able to achieve something similar to what i am looking for by scaling triangles and lofting them. But it results in different offset distance on every side.

Can some one please guide me/suggest me what i can try. I will attach result with scaled triangles.

Thanking you in advance.

Learning ....GH

Dilip

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Replies to This Discussion

Permalink Reply by DILIP MISTRY on March 16, 2013 at 8:31pm

Permalink Reply by djordje on March 19, 2013 at 6:22pm

Try attached file.

Attachments:

Triangles_offset2.gh, 7 KB

Permalink Reply by DILIP MISTRY on March 19, 2013 at 8:17pm

That's exactly what i wanted to achieve. Thanks a ton Djordje. I really appreciate your help.

Can i ask you one more thing here ?

Is there a way to control subdivisions on a surface when you isotrim ? I mean divide them equally, i know it is partly dependent on the extruded curve profile, number of control points and distance between them.

Thanks once again for your help.

Learner,

Dilip

Permalink Reply by djordje on March 20, 2013 at 2:19am

Not sure I understand you. What does "equally dividing of a surface" mean? Having triangular faces with all three edges of a same size?
If that is so, then I guess - no, you can not control this. Except for getting some approximate equal values.

Permalink Reply by DILIP MISTRY on March 20, 2013 at 7:53am

HI Djordje,

I have attached a sketch explaining my question. I think you have answered my question in a way. But just wanted to get a sketch out to you and see if it is possible.

Learner,

Dilip

Attachments:

Subdiv Sketch.jpg, 132 KB

Permalink Reply by djordje on March 20, 2013 at 8:04am

Try right clicking on your "surface" parameter and choose "reparametarize".

Permalink Reply by DILIP MISTRY on March 20, 2013 at 8:05am

Thanks a lot Djordje, will try that.

Permalink Reply by DILIP MISTRY on March 31, 2013 at 6:05pm

Hi Djordje,

Can you please help me with this when you have a chance?

http://www.grasshopper3d.com/forum/topics/dividing-a-surface-in-cus...

I still dint make any progress with this :(

You have been and are very helpful.

Thanking you in advance.

Learner,

Dilip

Permalink Reply by ann staniford on April 4, 2020 at 2:13pm

Hi! I am using the definition you made but I had two questions. (1) how do i made the section I marked over blue shaded/capped? (2) when I bake it it bakes at individual sections, how do i fix this?

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