generative modeling for Rhino
Does anyone know a simple way to create steel tubing along a polyline that has kinks? I'm looking for something similar to the pipe command, but with a square cross-section.
Essentially, I have a large tube that I would like to wrap with structural steel tubing to create a trussing system with points that can be altered along the edge curves. I have achieved the wrapping of the tube with an editable polyline, but am now looking for a way to give it thickness in three dimensions. I have tried sweeping a cross-section along the polyline, but that creates problems at the kinks. I've also tried offsetting the polyline and lofting the curves, which works as I offset along the larger tube, but I could not figure out how to offset towards a center point and could not isolate the individual sections of the polyline to offset that way.
Thanks for your help. I'm still fairly new to this program and any advice is appreciated.
I can upload an image to help illustrate what I'm trying to do if necessary.
i've got the same problem but a bit different. I need pipes or rectangles around my lines without overlaping themselves. i projected a voronoi on some breps and don't know how to get a thickness of the lines. would be great if someone got a solution on it.
i attached the files
voronoi > crvs > explode > flatten > removeDuplicateLines (kangaroo) > use Manuel's version above
...except exploding them will make the joints of your square pipes not so clean. You could try offsetting the voronoi cells inward before you project, then use the crvs to split the surface and offset the surface solid / bothsides
also sometimes tSpipe is pretty effective.
In your case since voronoi outputs closed curves, which pipe/sweep really nicely in terms of corner conditions (as opposed to exploded curves like I suggested earlier) it might just be better to sweep them all the same and either:
live with the overlap (it shouldn't be noticeable since the overlapping curves are identical). Then you could boolean union if you need it to be solid.
OR, you could look into sweeping half of a square or rectangular profile on the inside of each cell, then join them all which would avoid overlap (not sure about where the curves turn the corner of the Breps though...).
This definition draws pipes from the centers of the plane, caps the swept breps, and unions them.
Hope this helps anyone in the future.