does grasshopper do loops / redefine variables?

Replies to This Discussion

Permalink Reply by Danny Boyes on December 9, 2009 at 9:28am

Hi Andrei,

For a simple example like this I believe it is possible to produce the results with GH components but for something more complex maybe VB or C# is required.

Permalink Reply by Andrei Raducanu on December 16, 2009 at 9:44am

hmm, from what i get from your definition, grasshopper needs to generate (aka compute) a "pool" of possible solutions, and then pick and choose from those ones. this isn't exactly economical but it works nevertheless. thanks for your input!

Permalink Reply by Benjamin Golder on December 9, 2009 at 3:04pm

Andrei, it depends on how this loop affects the rest of the definition. If you want it to loop through these values at some point within the definition, and you don't want to use them as a list, then you will probably need a VB component,. If you want the entire definition to loop with these variables as an input, you might find the "animate" command helpful. Just right click on a slider, and give that slider a range that corresponds to the input values that you want. If you want the definition to repeat entirely, using the results of the previous input as a new geometry to act upon, you may need to use a VB component that bakes geometry at your output, along with another VB component that can automatically bring this baked geometry back into grasshopper.

Permalink Reply by Andrei Raducanu on December 16, 2009 at 12:16pm

yep, that's what i want, feedback - to use the output of one iteration as input for the next. i managed to do it with scriptable component, but i was just wondering if you can do it without using code, just to make an idea of how GH works

i didn't know that you can bake geometry within scriptable components. interesting!