attractor points, pinch lines

hello

What im trying is to transform curves using attractor points that will scale the line points.

The problem is once i have scaled the points of the line i cant reconnect the lines because ive loosed the index of the null branches.

How can i reintroduce those null branches in the correct position.

Thanks in advise

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Replies to This Discussion

Permalink Reply by Michael Pryor on June 24, 2013 at 7:56am

http://formularch.blogspot.com/2012/05/gh-grid-pinching.html

Permalink Reply by RR on June 24, 2013 at 9:46am

Michael thanks for your reply. This works perfectly with one unique force or scale. But when I want to use different forces I lose the original structure.
Maybe I didn't explain properly in the croquis.

Permalink Reply by RR on June 24, 2013 at 8:37am

Permalink Reply by Michael Pryor on June 24, 2013 at 8:42am

I suggest reading some materials on how data structures work. This is not any easy task without knowing the ins and outs. I have the solution as you have seen from my video but I am trying to develop it into something else so I cannot share it at the moment.

Permalink Reply by Marios Tsiliakos on June 24, 2013 at 8:47am

If you are feeling lazy, check out the point attractor example from nudibranch.. an infinite number of attractors can be implemented plus the original data structure is being kept intact.

Best,

edit: I haven't properly updated it to 0.9.0056 yet but it should be running.

Permalink Reply by RR on June 24, 2013 at 9:48am

Yes I already used nudibranch. Amazing tool.
But it doesn't really do what I want.
I'm also sure I might doing something wrong in the logic.
Thanks again Mario

Permalink Reply by Michael Pryor on June 24, 2013 at 10:15am

Marios has an example with nudibranch that does exactly what you ask i'm pretty sure in his example files.

Permalink Reply by Marios Tsiliakos on June 24, 2013 at 10:16am

In general the methodology you are looking for is to use weave with the same pattern you used to cull the points and re-link them into the correct(initial) data structure. I f you are using native GH components this needs a lot of data handling (sets ect) with nudibranch its been taken cared of automatically. can you post the file with nudibranch so that I can take a look later today..

Permalink Reply by RR on June 24, 2013 at 10:49pm

hi mario

thanks for your reply.

Like I told you nudibranch works perfectly the problem is that what i really want to do is to scale the lines that are inside the regions. But Nudibranch doesnt have this type of distribution

i upload done in nudibranch and the try with native gh comands

Attachments:

pinch atractors.gh, 39 KB
pinch atractors.3dm, 85 KB

Permalink Reply by Marios Tsiliakos on June 25, 2013 at 5:51am

It's still a little bit unclear to me what you want to achieve.. however take a look at the following, i followed your exact words on "scaling" the affected by the attractors points.

Best,

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