Grasshopper

algorithmic modeling for Rhino

Orient Brep along Spiral

Hi everyone,

I want to orient a Brep along a spiral. Think something like the steps of a stairs.

Sadly I cant find the right way to make the brep revolve around the centre and use the divided curve points.

My initial thought was to use the "orientation lines" as a direction vector but that didnt work.

I tried using the centre point of the circle but that got not the wanted result.

So for any help how to solve this I would be very gratefull.

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Permalink Reply by Hyungsoo Kim on January 26, 2017 at 5:34am

See attached if its heipful.

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Permalink Reply by Cheezy-neezy on January 27, 2017 at 12:47am

Thanks Hyungsoo!

I mean that would work but you created the steps in the definition. How would the definition change if I were to use a solid that I built in Rhino?

Permalink Reply by Hyungsoo Kim on January 27, 2017 at 1:36am

I understand what you intend to do and it might be one possible way, but I don't want to choose your path.

You must move your pre-made step to it's exact position of spiral stair as well as transform it, because the position to move and the original object are different in size.

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