Invert selection in RhinoCommon

Rhino Developer
,
1

I am creating a command for layout drawing using Rhinocommon C#

The user selects the objects to show in a layout viewport. I want that viewport to hide everything else apart from what has been selected. To do that I need the list of all objects that are not being selected. Is there a way to invert the selected objects easily?

2

How about something like this:

public void HideUnselected(Rhino.RhinoDoc doc)
{
    foreach(var obj in doc.Objects)
      if(obj.IsSelected(true) == 0)
        doc.Objects.Hide(obj, false);
}
1 Like
3

This should do it:

protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
  var filter = new ObjectEnumeratorSettings
  {
    NormalObjects = true,
    LockedObjects = false,
    HiddenObjects = false,
    ActiveObjects = true,
    ReferenceObjects = true
  };

  var rh_objects = doc.Objects.FindByFilter(filter);
  foreach (var rh_obj in rh_objects)
  {
    var select = 0 == rh_obj.IsSelected(false) && rh_obj.IsSelectable();
    rh_obj.Select(select);
  }

  doc.Views.Redraw();

  return Result.Success;
}
1 Like