Grasshopper

algorithmic modeling for Rhino

Extruding a Geometry to Surface profile

Hey,

Im looking for some help to extrude a specific grid of rectangles using a separate surface as the parameter. I want to be able to edit the surface parameter to achieve various scenarios. 

I have attached images of what i want to achieve. I did this manually which obviously is more time consuming. 

Thanks 

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Permalink Reply by David Rutten on August 30, 2014 at 6:31am
Hi Fletcher,

You can shoot up a ray from each grid cell centrepoint using the Line SDL component. Then intersect this ray with the surface, using the LimitToFirst menu option to simplify the results. The distance between the orinigal cell point and the intersected point is the extrusion distance you're looking for.
Permalink Reply by Fletcher Hawkins on August 31, 2014 at 9:37pm

Hey David,

Thanks for the reply.

Im quite new to grasshopper so Im still having issues as to how this is done. 

How do I set the Surface as an intersect with with the rays created. 
What/where is the LimitToFirst menu option?

Permalink Reply by Peter Kluck on September 1, 2014 at 2:48am

Best, Peter

Permalink Reply by Fletcher Hawkins on September 1, 2014 at 7:29am

Got it working. 
thanks

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