How to get all groups in the active grasshopper document in C#

Grasshopper
,
1

How to get all the groups in the active grasshopper document using grasshopper API, I want to retrieve all the groups in the active document and change their attributes, but I can’t find a way to query all groups in the document.
Also what is a good resource to understand how the grasshopper API works, like an explanation for how things are organized with some samples?

2

Hi,

You can iterate through all document objects and check for the GH_Group type.

 List<GH_Group> groups = new List<GH_Group>();
    foreach (IGH_DocumentObject igho in GrasshopperDocument.Objects)
    {
      if (igho is GH_Group)
      {
        GH_Group gr = igho as GH_Group;
//do your stuff here
        groups.Add(gr);

      }

    }

    A = groups;

GetGroups.gh (8.6 KB)

MetaHopper plugin also has components to access groups, set their colors and names.

1 Like
3

Great, Thank you.