"C# Grasshopper" Setting input as several data types

Grasshopper Developer
1

Hi everyone,

I’m trying to make my own component.
I want to connect several data types to one input.

I thought that Param.Input[i] is “Datatype” can be adopted to my problem but it doesn’t work.

Does anyone know how to do it?

Best
Shimpei

2

IGH_Param will never be the type IGH_Goo. The parameters in GH are generic classes GH_Param< T0> where T0 is GH_Goo< T1>, where T1 are the type of data (curve, number, arc, etc.).

We cannot make a hybrid parameter without creating our own parameter. But it’s not necessary, just use a Param_GenericObject, collects the data in SolveInstance with DA.GetData(…) using an object type, and then casts the data to the various types that you want to handle.

3

If you’re okay waiting with your type checking until the SolveInstance method, then you can use a Param_GenericObject. This will accept data of all types. Then your calls to DA.GetData() should always use IGH_Goo constraint and then you can check whether the data type provided was one of the types you can handle.

As @Dani_Abalde said, if you want this type filtering logic to already be in the parameter, then you’ll have to create your own GH_Param<T> type.