How can I get a Number Slider object and set a value?

Grasshopper Developer
24

It’s very strange, and frustrating. I have a break in my code, before GH_Document.NewSolution and after the new slider values are set and the current solution is expired.

At that point I can manually ask Grasshopper to recalculate, after which the code runs fine until the next iteration.
However, doing what should be the same thing in code with GH_Document.NewSolution causes the crash …

25

I solved the problem by changing to:
GH_Document.ScheduleSolution(1);

26

Gentlemen,

Thanks for the helpful discussion.
Is there a way to retreive float values from the number sliders? Since for example 71.80 now is returned as 7180. Thanks,

Jelle

27

Hi Jelle,

It should be no problem to retrieve float values, I do it all the time.
Probably the issue has something to do with how you parse/cast the data.

Cheers,
Thomas

28

Hi Thomas,

I’m trying to do something similar (optimize a set of number sliders to minimize a function defined in grasshopper) and I happened upon your discussion here. Did you ever figure this out? I’m a bit new to python but know Grasshopper fairly well, and I’d like to use python within the GH environment.

Thank you!
Moh

29

Hi @ismail,

I know how to do this only in C#, and, frankly, it is a bit of an advanced topic.
Nevertheless, the information in this thread should be what you need.

Cheers,
Thomas