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algorithmic modeling for Rhino

Francois
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  • Montreal, QC
  • Canada
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Replicate source Path
2 Replies

Hi, I have 3 planes on their own branches "x".I would like to duplicate each planes five times (so 3 branches of 5 items) but I always end up with a data structure of the 5 branches of 3 items...Dim…Continue

Tags: Path, VB

Started this discussion. Last reply by Francois May 8, 2012.

Mesh projection culling
7 Replies

Hi, I'm wandering what would be a good and fast approach to cull the stretched mesh face resulting from a planar mesh projected on a 3d object and only leave the face that are coplanar to the…Continue

Tags: exposure, isovist, Projection

Started this discussion. Last reply by wassim suleiman Jun 27, 2012.

 

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wassim suleiman replied to Francois's discussion Mesh projection culling
Jun 27, 2012
Francois replied to Francois's discussion Replicate source Path
"Hi David, Thank you so much for helping! I still try to figure out how to only have five items per branch (not 3x5) so it would match the input structure. Or in this case one item per branch... Regards"
May 8, 2012
David Rutten replied to Francois's discussion Replicate source Path
" The outer loop run 3 times and iterates over the branches, the inner loop runs 5 times and creates 5 planes in each branch. -- David Rutten david@mcneel.com Poprad, Slovakia"
May 7, 2012
Francois posted a discussion

Replicate source Path

Hi, I have 3 planes on their own branches "x".I would like to duplicate each planes five times (so 3 branches of 5 items) but I always end up with a data structure of the 5 branches of 3 items...Dim myTree As New DataTree (Of plane) Dim i As Int32For i = 0 To 4 Dim path As New GH_Path(i) myTree.Add(x, path) Next A = myTreeAny help would be appreciatedRegardsSee More
May 7, 2012
Francois replied to Francois's discussion Mesh projection culling
"I have a setup that is working pretty good using Mesh/curve intersect. I do the intersect on a positive and a negative offset and I compare to make sure I don't cull the faces that are exposed but are sitting on a corner of the mesh. "
Mar 27, 2012
Francois replied to Francois's discussion Mesh projection culling
"If anyone is interested, here is the work in progress definition. grasshopper/PlanarMesh-Projection_20120321.gh Regards Francois"
Mar 21, 2012
Francois replied to Francois's discussion Mesh projection culling
"Hi Andrew, sound really good! You think it would still work when the intersecting object is a complex hi-rez mesh? Thanks Francois"
Mar 21, 2012
Francois replied to Francois's discussion Mesh projection culling
"Nice, thank you Danny! I did try your technique, it works nice. Depending on the shooting point placement, some of the rays will hit the mesh at a great angle creating a larger perimeter even when the surface is expose... My goal is to create a…"
Mar 21, 2012
Andrew Heumann replied to Francois's discussion Mesh projection culling
"Not sure if this is any faster, but you could take the meshface centers (with the face normals component) and test for the BRep closest point and cull by distance."
Mar 21, 2012
Danny Boyes replied to Francois's discussion Mesh projection culling
"I would cull based on the Perimeter Length of a Face. The smallest Face Perimeter would be the "Camera Plane" and the largest would be the stretched faces so anything in between would be the co-Planar. (In theory)  "
Mar 21, 2012
Francois posted a discussion

Mesh projection culling

Hi, I'm wandering what would be a good and fast approach to cull the stretched mesh face resulting from a planar mesh projected on a 3d object and only leave the face that are coplanar to the intersecting mesh?I've had good result by pushing the new mesh further with a Wb offset and then shooting…See More
Mar 21, 2012
Francois commented on Andrew Heumann's video
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3d Spatial Isovist

"Thank you, it works great and super fast!"
Mar 21, 2012
Francois posted a photo

Mesh Projection

A definition based on Andrew Heumann 3d-spatial-isovist: http://www.grasshopper3d.com/video/3d-spatial-isovistIt simply project a planar mesh on to any 3D mesh, it can be useful for…
Mar 21, 2012
Francois is now a member of Grasshopper
Mar 16, 2012

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