Grasshopper

algorithmic modeling for Rhino

Extrude organic Spine of chair to different points

Hi community, 

This may be an easy script but I am having a tough time starting. I intend to extrude the spine of a chair to a different thickness at different points. It's a simple shape that starts at one dimensions and then gets thicker in the middle before returning to it's original thickness. I am guessing I would just define the points in rhino and set grasshopper to extrude to them. Here is an image of the file. I am new to grasshopper sorry if this is very simple. 

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Permalink Reply by Jackson Bewley on December 18, 2013 at 11:10am

My first thought for a variable extrusion would be to:

1) deconstruct the spline [Control Points] into points and weights and knots

2) apply a transformation along a vector to each point where the amplitude for each transformation is variable and defined by a function

3) reconstruct the now moved points with [NurbsCurve]

4) Loft the original with the new. (Or do the transformations in the opposite direction and loft the two moved curves for symmetry.)

Jackson

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