I would like to know one thing, if a have a drawing named dwgtest, and i've added another drawing as xref named dwgtestxref. So the number of xnodes in the xgraph of the dwgtest would be 2 right? the dwgtest itself and the xref
But if the dwgtestxref has two xrefs named dwgtestxrefxref1 and dwgtestxrefxref2. Why the number of xnodes in the xgraph of the dwgtest is 4? Shouldn't be 2? And the number of xnodes in the xgraph of the dwgtestxref would be 3, the dwgtestxref itself and his 2 xrefs.
I'm asking this because I'm updating the path of the xref, and I update for the dwgtestxref the two path of his xrefs, and then when I'm with the dwgtest i get 4 xnodes, and last two i get an eWasErased, that refer to the dwgtestxrefxref1 and dwgtestxrefxref2.
Am I doing something wrong? Do you understand my problem? I know it can be confusing
Thanks and kind regards,
According to the ObjectARX docs:
"The host drawing is always the rootNode"
The xgraph includes the drawing itself and all xrefs, including xrefs nested within xrefs.
So 4 xnodes makes sense. One node each for:
Let's say that you have this:
- dwgA xrefed into dwgB
- dwgA xrefed into dwgC
- dwgB and dwgC xrefed into dwgD
Then you'd also have 4 xnodes.
It might be worth looking at the code in the following post which will list the structure of the graph:
Can you please clarify what you mean by "always 2 empty nodes right and left ?"
You can try running the sample code from the blog post that Art has mentioned in his reply or the sample code from
This can help in understanding the layout of the Xref graph.