Grasshopper

algorithmic modeling for Rhino

Collision detection in Grasshopper?

I am thinking that I have to build a surface and divide the surface and project out polylines from the vectors, but I was wondering if anyone had any idea how to detect a surface? so when it collides with another surface it will create a new point (vector).

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Replies to This Discussion

Permalink Reply by Danny Boyes on October 18, 2009 at 1:24pm
Hi Thom,

You can use the Intersection of BRep component to trigger an event. The output of the Brep/Brep is null if there is no intersection and a line if there is. Therefore if the line has any length then there must be a collision. This true or false value can be plugged into a cull pattern component to either allow the next event or not.

Permalink Reply by thom boessel on October 18, 2009 at 4:14pm
Hey thanks Danny. I was wondering what the best approach would be to pull polylines out of the vectors to a certain length.
Permalink Reply by thom boessel on October 20, 2009 at 5:24pm
Hey Guys I am trying to get some geometry to cut through the lines and it doesn't seem to be working. Does anyone have any ideas?

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