How to create a "Member Group" in STAAD using OpenSTAAD command?

You may try the OSGeometryUI::CreateGroup function, which is used to create a group. Use type 2 (first parameter passed) to assign it for members. Alternately, the function OSGeometryUI::CreateGroupEx can be used to create a group and pass a list of members at the same time.

Example (VBA):

objOpenSTAAD.Geometry.CreateGroup(2,"MyBeamGroup")

DIM varEntityList As Variant

'select four members to be added to the group in the following command

objOpenSTAAD.Geometry.CreateGroupEx(2,"MyBeamGroup2",4,&varEntityList)

The function OSGeometryUI::UpdateGroup can then be used to replace, add, or remove objects from the a group.

Example (VBA):

'Update group to add members from a variant array list

objOpenSTAAD.Geometry.UpdateGroup("MyBeamGroup",2,4,&varEntityList)

STAAD.Pro CONNECT Edition Update 2 comes with the latest OpenSTAAD help, which can be access by selecting File > Help > OpenSTAAD Help.

Thank you.

I ve noticed that members which were selected at the moment of group creating (VB) goes to be assigned for a new group automatically. This aspect was not declared in Help.

Thank you.

I ve noticed that members which were selected at the moment of group creating (VB) goes to be assigned for a new group automatically. This aspect was not declared in Help.