hello, i have a question. i would like to start a simulation with grasshopper. by transforming polygon meshes into surfaces, the file becomes very large and the calculation takes much longer. is there another solution?
if i only use the polygon meshes, the test points are not displayed as desired but the whole area is the same. it would be great if someone could give me some tips. thank you very much.
kind regards, michael
Are you transforming each mesh triangle into a triangular surface?
… why?
… what??
Please add information, explain what you are doing, add pictures, otherwise your question is really generic…
@maje90 thanks for your response.
i import a building model. then i reshape the polygons to surfaces (polygontonurbs). and then i add the geometries in grasshopper to start the simulation.
the problem is, if i only add the polygons, no reasonable grid is created (picture), so that the individual results are queried for each grid. for polygons, only the center point is queried as a result. for surfaces, the grid is queried as set (picture).
Hi Christian -
That’s hard to tell with the very limited information that you have provided.
How did you get from the mesh image to the second image?
If you have coplanar mesh faces, you can use MergeAllCoplanarFaces to turn them into fewer mesh faces. From that first image, that doesn’t look to be applicable. In the second image, maybe.
What do you get when you run QuadRemesh on the object and set the target count very low?
-wim
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hi @wim ,
thanks for your response.
i think you misunderstood my concern. the only difference between the two images is that one is a surface and the other a polygon. and my problem with polygons is that only the center point is queried in the simulation with grasshopper. with surfaces it creates a grid, which i have set.
when i work with polygons, the file size is much smaller than with surfaces and therefore the simulations are also shorter.
kind regards, michael
and this raises the question of whether it is necessary to work with surfaces in grasshopper or whether this is also possible with polygons?
I have no idea what you are talking about. I am not able to follow what you say.
Maybe try to user proper terminology while we are in the Rhino context:
Strange. Odd. Unusual.
For 3d models, in Rhino, a polysurface usually weight less than a similar mesh shape.
(polygons here are 110% unrelated and out of context…)
What you say should apply when comparing a clean polysurface (that later, for simulation, is converted to a simple but accurate mesh with big faces) to a dirty mesh (likely from a 3d scan), with the first being faster. But I can’t understand if you are telling the opposite or not.
One origin of equating polygon to (triangle) mesh is Blender, in which mesh modeling is called polygon modeling. Blender also call Fillets and Chamfers ‘Bevels.’ It seems the developers invent new names for many existing technology.