Grasshopper

algorithmic modeling for Rhino

Information

Octopus

Octopus is a plug-in for applying evolutionary principles to parametric design and problem solving. It allows the search for many goals at once, producing a range of optimized trade-off solutions between the extremes of each goal.

Also see octopus.E for custom evolutionary algorithms.

 

Download the latest version on food4rhino

It is part of a range of tools developed at the University of Applied Arts Vienna, and Bollinger+Grohmann Engineers.

 

  • search for single goal + diversity of solutions
  • search for best trade offs between 2 to X goals
  • improve solutions by similarity-goals
  • choose preferred solutions during a search
  • change objectives during a search
  • solutions' 3d models for visual feedback
  • recorded history
  • save all search data within the Grasshopper document
  • save a solution as a Grasshopper State
  • export to text or text files


Octopus introduces multiple fitness values to the optimization. The best trade-offs between those objectives are searched, producing a set of possible optimum solutions that ideally reach from one extreme trade-off to the other.

Based on SPEA-2 and HypE from ETH Zürich and David Rutten's Galapagos User Interface. Developed by Robert Vierlinger in cooperation with Christoph Zimmel, karamba3d.com and Bollinger+Grohmann Engineers.

 

To install:

  • Copy the .gha and .dll file into the Grasshopper components folder 
  • Right-click the file > Properties > make sure there is no "blocked" text
  • Restart Rhino and Grasshopper

 

Some examples are provided here

New commented examples and a brief manual are provided in the download of octopus on food4rhino.

Location: Vienna
Members: 413
Latest Activity: Jun 27

Discussion Forum

Octopus cannot start computing - phenotype? too fast for loops? 3 Replies

Hello all, I am having a problem with figuring out why Octopus cannot compute anything. The case is sailing yacht's rig (mast, spreaders + steel lines) multicriteria optimisation. The 1st criteria…Continue

Started by Mikolaj P.. Last reply by Mikolaj P. May 10.

Structural Optimization 3 Replies

Good Evening to everyone,I'm writing here because I'm trying to optimize a girder bridge for my thesis.I'm trying to achieve the less expensive construction material, with the problem of satisfy…Continue

Tags: Octopus

Started by Leonardo. Last reply by Thomas Wortmann Dec 23, 2018.

Automatically run solver and output best solution after N generations 3 Replies

Below is a schematic of what I want to do, namely:Trigger a solver like Octopus or Galapagos from within a definition (not by double-clicking the component), run the solver for a fixed number of…Continue

Tags: loop, optimization, evolutionary, Galapagos, Octopus

Started by Max Marschall. Last reply by John Harding Nov 10, 2018.

Spot the mistake(s)

Hi all,I'm trying to run the attached optimisation, but can't get Octopus to begin to update the sliders in my gene pool. What am I doing wrong?The logic (also explained in the notes in the…Continue

Started by Magnus Larsson Sep 20, 2018.

Comment Wall

Add a Comment

You need to be a member of Octopus to add comments!

Comment by Ángel Linares on December 13, 2012 at 16:28

It looks very interesting! Let me give a try :)

Comment by John Sullivan on December 13, 2012 at 12:55

It's about time.  Galapagos is wonderful but this looks like it will be a lot more useful.  Nice work!

Comment by Robert Vier on December 9, 2012 at 4:11

it took some time for my project on food4rhino to be approved, but now it is there to download

Comment by Amaury THOMAS on December 6, 2012 at 10:11

Hello,
How are doing ?

I can' t download Octopus. The acces is denied.
Something could be done to fix that ?

Best

 

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