I’m working on a series of Rhino CustomObjects with custom UserData attached.
My custom object class has a OnDataUpdated event method which should replace the current object geometry with the a new one with a new set of input parameters.
The method below works fine the first 2/3 times replacing correctly the geometry then starts duplicating it; somehow seems like the ObjRef is not getting deleted/replaced after few iterations.
Any idea why that happens?
internal override void OnDataUpdated(object sender, EventArgs e)
var data = sender as nBeam;
var doc = RhinoDoc.ActiveDoc;
doc.Objects.Replace(new ObjRef(this), data.Create());
Can you put together a simple example, that we can run here, that repeat the issue you are seeing?
Hi @dale ,
I attached here a .rar with the sample I’m working on (Rhino and GH file, my compiled .dll and the classes as separate c# files)
Many thanks for your help,
Sample.rar (106.3 KB)
HI @dale @stevebaer,
did you have chance to look at this issue?
I keep having the some duplication issue as well as the CustomObject disappearing after duplication.
Any help would be appreciated.
Sorry, for the delay on this. When you first posted the zip file, I was confused what the DLL was (Rhino plug-in, Grasshopper plug-in). And since there wasn’t a project that I could build and run, I got distracted.
Anyway, I can see you have several classes. And at first glance all looks good. What I need is a way to repeat what you are seeing - in a debugging session preferred. Can you give me step by step instruction on how I can do this?
first thanks for taking the time to have a look.
I recorded a short video which shows the process and the current two issues:
- I create an nBeamObject (CustomBrepObject) on a curve
- I update the nBeamObject properties and replace the prior object with the new updated one
After 3 update cycles it starts duplicating with a non CustomBrepObject and keeps duplicating exponentially, looks like is not delete the reference in the active doc.
When the CustomBrepObject is transformed or copied, it remains selectable but disappears.
I attached also the solution with a Debug session to be able to replicate.
Many thanks in advance.