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algorithmic modeling for Rhino

Stefan Slangen
  • Eindhoven
  • Netherlands
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Divide line with two attractor points
4 Replies

Is there a way to divide a line into distances that are dependent on two attraction points?When the attraction point is at the centre (half of the total span length) the density of points should…Continue

Started this discussion. Last reply by Stefan Slangen Apr 20, 2015.

Tube optimization
10 Replies

I am working on a project and my goal is to optimize a tube structure (of a bridge).I am almost done with the geometry and now I'm working on the diagonals between the vertical ring sections. The…Continue

Started this discussion. Last reply by Stefan Slangen Mar 27, 2015.

 

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Latest Activity

Esraa Mohamed Abouamer replied to Stefan Slangen's discussion Zombie Kangaroo + Mesh relaxation in the group Kangaroo
"hi, would you please post the rhino file and grasshopper file for that script"
Oct 2, 2016
Stefan Slangen replied to Stefan Slangen's discussion Zombie Kangaroo + Mesh relaxation in the group Kangaroo
"Thank you Daniel! It's functioning now. But I am still wondering how to obtain the output geometry as one mesh. I tried the following, but some parts of the mesh are 'missing'.  Is there another way to obtain the mesh geometry?"
Oct 7, 2015
Daniel Piker replied to Stefan Slangen's discussion Zombie Kangaroo + Mesh relaxation in the group Kangaroo
"Hi Stefan, This script creates its own solver internally, so there is no need to use the actual Solver component. You need to set the location of the assembly reference (by right clicking the script component). Make sure you choose the one in the…"
Oct 7, 2015
Stefan Slangen replied to Stefan Slangen's discussion Zombie Kangaroo + Mesh relaxation in the group Kangaroo
"Thank you for the reply Daniel, I installed Kangaroo 2, but I can't figure out what I'm doing wrong. The solver works, but the script gives an error. I thought I had to combine the solver with the script, but I don't know…"
Oct 7, 2015
Daniel Piker replied to Stefan Slangen's discussion Zombie Kangaroo + Mesh relaxation in the group Kangaroo
"Instead of moving the anchors themselves, what you could do is set some anchors in the target positions, and connect them to the vertices you want to move to those points with zero-rest-length springs. Also, to do this in Kangaroo2, you can use the…"
Oct 6, 2015
Stefan Slangen added a discussion to the group Kangaroo
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Zombie Kangaroo + Mesh relaxation

Hi all,I am trying to figure out how the zombie component is working. I only want to obtain the outputs from kangaroo to use it for Galapagos (in the end). I am wondering if it is possible to create a mesh relaxation with the zombie component. I created a mesh with certain anchor points. When moving these anchor points downwards (to create a structural column) the output of the zombie component doesn't change, while the output of the normal kangaroo component shows the mesh relaxation.…See More
Oct 6, 2015
Stefan Slangen added a discussion to the group Kangaroo
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Catenary roof structure

Hi all,I am currently working on a project for the design of the roof of a parking lot.At first I created a surface with grasshopper and baked this surface into rhino. In rhino I converted the surface to a mesh (NURBS object). The goal is to relax the mesh between the boundary lines (catenary lines) which are the control points. And after that I want to drag the columns down to the floor to create a nice shape.But when I use the mesh for the Kangaroo plugin, grasshopper and rhino stop working…See More
Sep 29, 2015
Daniel Piker replied to Stefan Slangen's discussion Form finding with Kangaroo (catenary lines) in the group Kangaroo
"This is just how the mesh is being triangulated for display. If you want to control this you could triangulate the mesh in Rhino and swap edges to get the desired diagonals. Be careful though, as a triangulated mesh would behave differently when the…"
Sep 22, 2015
Stefan Slangen replied to Stefan Slangen's discussion Form finding with Kangaroo (catenary lines) in the group Kangaroo
"Yes, that's it! But I was wondering how it is possible that the mesh at one of the catenary lines is very smooth while the mesh hanging at the other catenary line has triangles (where it hangs)..."
Sep 22, 2015
Daniel Piker replied to Stefan Slangen's discussion Form finding with Kangaroo (catenary lines) in the group Kangaroo
"Ah yes, it was missing gravity applied to the mesh (it was only on the cables). With that it gives more the shape in your original post:"
Sep 22, 2015
Stefan Slangen replied to Stefan Slangen's discussion Form finding with Kangaroo (catenary lines) in the group Kangaroo
"Hi Daniel, Thank you for the response. Indeed the mesh is now included in the structure with the catenary lines. But the problem is that the mesh is now no longer in the squared surface (image in previous post). I think the goal is to sort of…"
Sep 22, 2015
Daniel Piker replied to Stefan Slangen's discussion Form finding with Kangaroo (catenary lines) in the group Kangaroo
"Hi Stefan, The key thing is to make the mesh edges also into springs. You can do this by extracting mesh edges, or use the included SpringsFromMesh component as shown."
Sep 22, 2015
Stefan Slangen added a discussion to the group Kangaroo
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Form finding with Kangaroo (catenary lines)

Hello everyone,Recently I've started to work with the Kangaroo plugin for Grasshopper for a project. The project is about the design and structure of thin concrete shells.I was inspired by the work of Heinz Isler. He worked a lot with catenary lines and gravity. By turning the catenary line upside down, the ideal compression arch is obtained (the best for concrete).Now I wanted to try and create some of his models with Kangaroo and Grasshopper. I am currently working with the structure of the…See More
Sep 22, 2015
Stefan Slangen replied to Stefan Slangen's discussion Optimization with Galapagos in the group Geometry Gym BIM
"Hi Jon, I changed the range of the number sliders and I let the optimization run for a bridge with a 50 meter span. The optimization ran the whole night and when I checked the progress a few moments ago Galapagos was finished. The only problem was…"
May 29, 2015
Jon Mirtschin replied to Stefan Slangen's discussion Optimization with Galapagos in the group Geometry Gym BIM
"Hi Stefan, Looks good.  I didn't study your definition too closely but I'm assuming the objective also includes a stiffness check (else to minimize weight you simply put as few elements in as possible at the smallest size). I…"
May 28, 2015
Stefan Slangen added a discussion to the group Geometry Gym BIM
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Optimization with Galapagos

Hi Jon,I finished the modelling part of the project. What I wanted to do is to optimize the structure with Galapagos with the data that Geometry Gym obtained from GSA.I set different variables and one fitness function that needs to be minimized (the weight).When I start the optimization solver, the program switches to 'not responding' as well as Grasshopper and Rhino. When I try to use less variables, or even only one variable (genome), this still happens.Is there a way to prevent this from…See More
May 28, 2015

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