Rhino.SetObjectData in C#

Replies to This Discussion

Permalink Reply by Vicente Soler on August 6, 2013 at 10:13am

I think the equivalent would be something like this:

    RhinoObject obj = RhinoDocument.Objects.Find(x);
    obj.Geometry.SetUserString("key", "value");
    obj.CommitChanges();

'x' is the GUID of the object. If you are on a scripting component you can reference the geometry to a parameter, connect the parameter to the x input and set the type hint of the input as Guid.

Permalink Reply by Krista Palen on August 6, 2013 at 11:55am

Hi Vicente, 

Thanks very much for your response. The Rhino.SetObjectData method takes an additional parameter which is the name of the application. The obj.Geometry.SetUserString("key", "value"); does not take this parameter so I don't know how it can work. 

Syntax

Rhino.SetObjectData (strObject, strSection, strEntry, strValue)

Parameters

strObject	Required.  String.  The object's identifier.
strSection	Required.  String.  The application name.
strEntry	Required.  String.  The key name.
strValue	Required.  String.  The string value.

Permalink Reply by Vicente Soler on August 6, 2013 at 12:23pm

This is the most basic way of quickly adding user data to objects. It's the same as the Rhino commands _SetUserData and _GetUserData. If you want to add more customized user data you will have to derive a class from Rhino.DocObjects.Custom.UserData. There's a good example on this page: http://wiki.mcneel.com/developer/rhinocommonsamples/userdata.

If you prefer to keep it simple and stick to the user strings, you could add subcategories by merging them in the key field separated by a character (for example "Program Name;Category one;Category two").

When you want to retrieve them, after reading the key string, split it using the separator character to get the different subcategories as an array of strings.