How to not run my component every time I change my InputParams?

Grasshopper Developer
1

I have a input param called A which will refresh every 50ms. But I don’t want my component to run every 50ms. I hope that my component run only if I disenable and enable it.

2

You could use a data dam before the input param A in the script.

Else you will need to add something like a boolean input along with a global flag on whether to update or not along with a global variable for what it will be set as.

public class componentClass : GH_Component
{
    private bool UpdateOut { get; set; }
    private double Val {get; set;}

    public PortalFrameStructureInput()
      : base(...)
    {
        UpdateOut = true;
    }

    protected override void RegisterInputParams(GH_InputParamManager pManager)
    {
        pManager.AddBooleanParameter("Run", "R", "Run the Stript", GH_ParamAccess.item, false);
        pManager.AddNumberParameter("A", "A", "A", GH_ParamAccess.item);
    }

    protected override void RegisterOutputParams(GH_OutputParamManager pManager)
    {
        pManager.AddNumberParameter("A", "A", "A", GH_ParamAccess.item);
    }

    protected override void ExpireDownStreamObjects()
    {
        if (UpdateOut)
        {
            Params.Output[0].ExpireSolution(false);
        }
    }

    protected override void SolveInstance(IGH_DataAccess DA)
    {
        DA.DisableGapLogic();
        Boolean run = false;
        DA.GetData(0, ref run);
        Double A = 0;
        DA.GetData(1, ref A);
        if (UpdateOut)
        {
            DA.SetData(0, Val);
            UpdateOut = false;
            return;
        }
        if (run)
        {
            //"run solver:
            //Val = new value;"
        }
        DA.SetData(0, Val);

        if (run)
        {
            UpdateOut = true;
            var doc = OnPingDocument();
            doc?.ScheduleSolution(5, Callback);
        }

    }

    private void Callback(GH_Document doc)
    {
        if (UpdateOut)
        {
            ExpireSolution(false);
        }
    }
2 Likes
3

Casue data dam only has a few option so it might be easy to use but not my selection. And it seems that globle flag might be a better choice. Thank you.