Octopus

460 members

Description

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.

Comments Discussions Members

Don't know where to start ! a newbie question

by Ninja

Nov 28, 2014

Hi everyone,

I'm new to Octopus. I'm going to use Octopus with Diva ( daylighting analysis component). I have to outputs from two diva components that I need to feed them to Octopus as objective functions ( minimizing one, and maximizing the other). I looked at various tutorials but they seem to have older octopus components. Could someone points me to a tutorial or help me with figuring out how to do this. I know how to feed my objective functions and my genomes, I just don't know what is P and PS. and ow do I start the solver??  

  • up

    Yassin Ashour

    Hi,

    There are example files that are part of the Octopus package that can help you out. In terms of getting started, simply click on 'start' in Octopus to start the optimization runs. Make sure that DIVA is turned on (Boolean toggle: TRUE). You can also determine the number of generations and population size (check the octopus manual by Robert, he explains everything there). The P and Ps are explained here: http://www.grasshopper3d.com/forum/topics/octopus-basics-help-required

    Cheers!

    Yassin

    3

    Nov 28, 2014

    • up

      Michael Fluer

      Witam, brat polecił mi platformę, na której sam gra po pracy, więc z ciekawości sprawdziłem vegashero . Zwróciłem uwagę na bonusy dla graczy z polski i łatwą obsługę strony. Pierwsze rundy w Starburst były nieudane i już zaczynałem się irytować, ale podbiłem stawkę i nagle wpadła solidna wygrana. To był moment, który całkowicie zmienił mój wieczór i przyniósł sporo satysfakcji. Jeśli ktoś szuka odskoczni od codziennej rutyny, moim zdaniem warto spróbować.

      11 hours ago