Galapagos: Minimum Bounding Box

Replies to This Discussion

Permalink Reply by michael sprinzl on May 15, 2017 at 2:45pm

Hi Firat,

ich bin grad ziemlich unter Zeitdruck aber ich muss die Komponente bald für die Arbeit erweitern.

Permalink Reply by Ferdinand Facklam on October 20, 2010 at 4:42am

Gives you various option of geometries formfinding. Galapagos open a new field for open an closed spaces.
I will play around and looking for other solutions.

What mean the expression for the number components?

Permalink Reply by pyrit on November 2, 2010 at 3:39am

hi,

im trying to understand galapagos, with the help of this example.
i asssume with

-Abs(num)

in the number component im telling galapagos to check out best combination of slider inputs to achieve min. difference between A and B. (please have a look at the image)

is there any manual for grasshopper explaining the graphs, buttons or gives an overview ?

thank you very much.

Permalink Reply by Tuan N. Tran on November 2, 2010 at 7:47am

Hi

You are correct about the expression: -Abs(num). I searched for the minimum difference between the object and the bbox because i was testing for the proof of concept. The object here is a box rotated three different time in the three different axes. If the minimum volume difference approaches zero, I know the algorithm is functional.

As far as "manual", this is the best resource thus far:

http://www.grasshopper3d.com/profiles/blogs/evolutionary-principles

Permalink Reply by pyrit on November 2, 2010 at 8:15am

thx
i didnt find that thing !

Permalink Reply by David Wood on November 2, 2010 at 5:40am

Thanks Tuan,

Appreciate you sharing your definition. This is the first time i've used Galapagos, and this helps my understanding greatly.

I do a lot of 3D printing, so this definition is a great starting point for ideas. - Just imagine if this definition could perform a nesting operation, or orientate a build so as to give the lowest possible Z height!

That's probably a long way off, but your definition is great!

Thanks so much.

David.

Permalink Reply by Tuan N. Tran on November 2, 2010 at 7:50am

David

I'm with you on nesting. If only we could perform the same search for 100s of objects, 2d or 3d! I'd be interested in seeing how you've adapted the definition to suit your need.

Tuan

Permalink Reply by David Wood on November 2, 2010 at 8:35am

Hi Tuan,

If i can make any useful adaptation i'll be sure to post it back up here...

At the moment though i'm using it as a vehicle to understand the limitations of Galapagos. There's definitely potential here, but the first thing would be that ability to handle multiple geometries.

David.

Permalink Reply by Beltrán Fernández Mariño on November 11, 2010 at 6:24pm

Hi, David,

I've been using Galapagos, to orient the build (ABS FDM 3D printing), for a while (months). Different criteria (fitness): lowest height, lowest shadow, maximize extrusion-along-Z behavior, reduce the amount of support material, smooth the slope, &c. How else would you use it?

Beltrán.

Permalink Reply by michael sprinzl on June 21, 2011 at 4:13am

I you want to orient hundreds of 3d part for 2d drawing this is the way to go.

Permalink Reply by arsenyiiv on June 15, 2016 at 7:44am

Hi Michael, i have some issues with your component, it seems like it to old. It was worked just fine, but when I had changed geometry, it gives me this:
1. Solution exception:Object reference not set to an instance of an object.

Geometries are Identical, so I can't understand what the problem is. My definition is alredy too big and complicated to use Galapagos. Can you help Me pleas?

 

Permalink Reply by arsenyiiv on June 15, 2016 at 8:37am

Problem is solved!! It was My Geometry))

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