Grasshopper

algorithmic modeling for Rhino

Hi Everybody,

I am very new to grasshopper and PT. What I want to do is create a simple paneling pattern on a reverse cone surface (now created with grasshopper, but could be any surface). This paneling consist of an outside grid and an offset center grid. But what I want is the offset grid to be variable in offset distance. So I would like the rows in to the top of the surface to have a decreasing offset distance. 

Like I said I am new to grasshopper, but how would I proceed to get this result? Thanks!

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Hi Patrick,

Please see the attached. You basically need to extract every other row, offset by the desired distance, and then re-weave your data. I hope it helps. Data trees in GH is rather advanced topic, so do not feel discouraged if you do not get it at first. Just keep asking questions.

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Hi Rajaa,

Appologies for the late reply, been very busy ;-)

Your solution seems interesting, but it looks like you are giving variation in the offset distance in alternating columns instead of a variable offset distance in the rows. 

What I now thought was possible is to extract every row and give it a different offset distance and weave them all together. After this put both the original grid and the weaved together offset distance center grid in a 3d paneling connection. This doesn't work and when I add the original grid to the 3d paneling connection, grasshopper will crash. 

Do you have another solution that will solve this?

Thank you in advance. 

Patrick Hartog

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Hi Patrick,

So from the looks of it you are going for some variable push/pull distances like creating a Parabolic curve in section profile so the outer most grid is the tallest and a non-linear fall off toward the middle? Does that kind of sound what you were after?

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