generative modeling for Rhino
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Renata Stefanelli
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Renata Stefanelli's Discussions
Flow Along Srf in Grasshopper
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I am trying to project some curves/objects on to a surface. In Rhino, I have used "Flow Along Srf" and in Grasshopper I've tried "project a curve onto a brep" without sucess.I would like to know a…Continue
Tags: onto, brep, graph, mapper, curve
Started this discussion. Last reply by Nick Feb 29.
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Nick replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"Hi Michael ...for some reason I cannot reply to your below post.
I found an alternative solution ...went the texture route to get my profiles on the surface the way I want by mapping via lat-long hdr. Just means I loose the interactivity I was…"
Michael Pryor replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"but if u wrap a curve around another surface it will always distort in some way except when viewed from the projection view. so i dont understand what you want to achieve."
Nick replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"ahhh I see ok great! I don't actually know grasshopper/rhino at all so I was just assuming perhaps this surface mapping was doing some funky projected math.
So my actual question remains then... can you show the original 2D curve before the…"
Michael Pryor replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"hi nick, the green like is a result of the project component, the red line is the result of map to surface. the curves in both cases start as flat 2d curves, mapped to the surface (red) and projected to the surface (green). in the plan view you see…"
Nick replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"wow ok interesting ...how do I read your image? The orthographic ...are they the curves pre deformation and that image plane a displacement map? Or are we seeing them being projected already? Is the green/red where it is deviating from the…"
Michael Pryor replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"project follows the form exactly in my case, where as map seems more "approximated" yet both have the exact same plan. "
Nick replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"I suspect that whatever underlying process that is going on in order to use the "Map to Surface" component is actually doing some sort of plane/camera projection to begin with. The problem with this is it doesn’t respect the actual…"
Nick replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"Hi Chris ...I'm trying to solve the exact same solution in Maya but haven't been successful so looking at other applications now. From your screen capture it appears that there is some distortion from the original. Is there a way to…"
Chris Tietjen replied to Renata Stefanelli's discussion Flow Along Srf in Grasshopper"Hi Renata,
Use the 'Map to Surface' component. Let me know if I'm missing some detail of what you're trying to do.
Chris"
Renata Stefanelli posted a discussionFlow Along Srf in Grasshopper
I am trying to project some curves/objects on to a surface. In Rhino, I have used "Flow Along Srf" and in Grasshopper I've tried "project a curve onto a brep" without sucess.I would like to know a way to do it in Grasshopper, in order to move the position of the curves with a number slider or a graph mapper. Also, is there a way to multiply the quantity of curves on the surface, ALONG (contained on) A SPECIFIC CURVE to replicate the pattern? Tks in advance, Renata.See More
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