set ObjectAttributes.ObjectId ???

[tmakin]

Hi there, I have been searching for way to manually set the object Guid before the object is added to the document. I use Guids to keep track of my internal objects and in the old sdk I used to be able to use this id when the time came to add some associated geomoetry to the rhino model. I see from the code in rhinosdkobjectattributes.cs that the set operator for objectId has been deliberatly left out. Any chance it could find its way back in?

Many thanks, Tom

https://github.com/mcneel/rhinocommon/blob/master/dotnet/rhino/rhinosdkobjectattributes.cs

    public Guid ObjectId
    {
      get
      {
        IntPtr ptr = ConstPointer();
        return UnsafeNativeMethods.ON_3dmObjectAttributes_m_uuid(ptr);
      }
      // I don't think I've ever seen a "set" case so leave out
    }

[sbaer]

I'm not sure I understand the need for this. Is there a reason you can't just record the Guid after the object has been added to the document?

[tmakin]

Hi Steve, I use a readonly Guid to track interdependence between a variety of different custom geometry objects in a structural modelling application. This readonly Guid is assigned when my object is first created and this needs to happen before the rhino object is created. So when I add the object to Rhino I have to either use an independent Guid or ditch the readonly and go and update the value later on. Going back and updating is a bit of a pain as other objects have generally already stored a reference to the original Guid before I add the geom to Rhino. I could search through everything to change al these references but it's not very elegant. Currently I embed my custom Guid as a user data string which works fine but seems to be doubling up unnecessarily. Is there a reason why this feature can't be exposed in Rhino common as it worked fine for me in the old SDK? Cheers, Tom

[sbaer]

The feature can be exposed, I just needed to understand why it would be necessary. Thanks, -Steve

[tmakin]

This now makes things much tidier for me. Many thanks.