Using nested iterators to merge combinations of feature classes

ttw_marine

I have a gdb with different polygons (buffers) in. I want to create all of the different combinations when two of these polygons are merged. I have tried to achieve this with 2 nested iterators, but so far having some issues.

One issue I have found is only 1 output / combination is created in the gdb, as if the iterator isn't working at all. My latest attempt causes the tool to run infinitely (it seems!!), and I can see there is only one combination of buffers being created / merged in the dialogue pane and in the folders through file explorer. 

Model 1: iterate through feature classes in gdb, merge with different iterated outputs of nested model.

v2Buffs1: iterate through feature classes in gdb, outputs to be used in main model merge

Any help much appreciated! Happy to explore options using Python if easier?

 

Robert LeClair

As you likely know, a model can only have one iterator but you can get around this by working with a model within a model as referenced here.  I also worked with a customer that kind of got around the one iterator per model issue by having 3 models that were then accessed via a Python script tool.  You can read about it here.