Recalculate solution without redrawing canvas

[felix.brunold]

Hello Together

I’m a bit lost with the whole expiring and recompute/redraw of grasshopper. I have the following situation roughly like this.

 for (var i = 0; i < Population; i++)
        {

            Go through all sliders and set tick value (foreach loop)
            {
            //This should set the new slider values and at the end 
            //of this loop it should recalculate the solution without redrawing ever the canvas
                sliders.SetTickValue(value)
            }

            //Here it should redraw the canvas once.
            Doc.NewSolution(false);
            // Doc.ExpirePreview(false);
            // Doc.ExpireSolution(false);
        }

The goal of all this is to improve the time it takes to calculate all of the options. Would anyone have some pointers on that.

Best and thank you already
Felix

[AndersDeleuran]

This topic should help:

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

FixValue is not the right method to call, that method merely fixes the assigned value (i.e. it makes sure it doesn’t exceed the limits and adheres to the correct rounding scheme). The problem you have is actually three-fold: Get references to all sliders you want to change. Change all slider values. Run a new solution. I don’t know how you define which sliders are relevant to you, so I cannot much comment yet on item #1. There are four ways in which you can change the slider value, you’ll h…

And while it’s meant for GHPython users, this might help too:

The only safe way to Update Sliders in GhPython

Over the years, there have been lots of threads here and on the old Grasshopper forum that deal with setting slider values in Grasshopper. They all have some advantages and disadvantages, but they have something in common: they too often end up breaking the Grasshopper SDK rule “never edit values while the definition is running”. This thread shows a way of fixing that. This is a Rhino-6-only possibility, because this feature is new in Rhino 6. By overriding the Component Context menu, we can se…

Also these methods are available. I’ve never used them, but they might be relevant:

[felix.brunold]

Hey Anders

Thank you for sharing all these topics! Turns out i didt do my homework properly, i just had a deeper look into the grasshopper api and turns out this was excactly what i was searching for…

Doc.NewSolution(false,GH_SolutionMode.Silent);