How do i update GH slider via python (or other?) in a better way?

I am updating sliders in GH with python, to see changes in "real-time" i use

gh.RunSolver("filename")

But saving the file every time i want to change a slider seems so wasteful and also it is very slow.

Are there any other ways of doing this in code or maybe another way? i just want to control GH slider outside GH, i made a python GUI because it made sense with my current skill level.

Replies to This Discussion

Permalink Reply by djordje on August 28, 2014 at 3:32am

Hi Eivind,

You have been using the (grasshopper) plugin methods:

import Rhino
import time

gh = Rhino.RhinoApp.GetPlugInObject("Grasshopper")

for i in range(3):
    gh.SetSliderValue("slider id", i)
    gh.RunSolver("somefile.gh")
    time.sleep(0.5)

gh.SaveDocument()

Permalink Reply by David Rutten on August 28, 2014 at 4:11am

Yes you can set slider values. You can either use the GH SDK directly, get the GH_Document, find the GH_NumberSlider, set the new value, then trigger a new solution. Or you can use the RhinoScript interface that Grasshopper provides to set these values.

I'm not very good at Python so I don't know if you can access the SDK without referencing it.

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