Value = 0

Replies to This Discussion

Permalink Reply by Simon Flöry on January 7, 2013 at 11:20am

Dear Remy,

You can already achieve this by a small modification to your optimization problem: Take the single-valued output of your Grasshopper definition, subtract it from the target value, and minimize/maximize the square of the difference. Alternatively, you may also minimize or maximize the absolute value of the distance, but it is more save to square.

As this sounds quite technical, have a look at at the attached example. There, I optimize for the radius of a circle such that the circle's area is 1.5.

Above technique of optimizing the square of the difference to a target value is a very common and powerful technique in optimization.

Please let me know if I can help you any further,

best, simon

Attachments:

• min_defect.gh, 3 KB

Permalink Reply by Rémy Maurcot on January 7, 2013 at 12:27pm

Dear Simon, tanks for tour reply.
thank you I looked as soon as possible.

Permalink Reply by Rémy Maurcot on January 8, 2013 at 2:41am

Thank you, that's what I wanted.
It might be useful to integrate directly in goat in a future version.

Regards

Permalink Reply by David on April 29, 2014 at 9:10pm

it is good ,thanks