How to stop a model builder feature iteration after the condition is fulfilled
Accepted Solutions
A general observation - when folks find they need to use iterators with conditions, that often is the point they end up going to Python scripting instead of Modelbuilder.
That said, there are some options in Modelbuilder to do what you are looking for. But Modelbuilder is limited in this regard. It will depend in part on how complex a condition is that you want to trigger the end of the run and whether the data is structured to support this.
Some possibilities:
- Use a While Iterator (likely part of a "model within a model strategy" as mentioned by Joe Borgione ) While—Help | ArcGIS for Desktop
- Use a Stop "Model-only tool". This can be useful if one does not want to do the "model within a model strategy" Stop—Help | ArcGIS for Desktop
- It may be possible to write a short bit of Python code to do the check for when to stop, then import that into Modelbuilder as a script tool and then add it to the Model. A quick tour of creating tools with Python—Help | ArcGIS for Desktop
- There are Iterator properties that can be set at the Model-level that may do what you want. In the Model itself, click on "Model" in the top menu, then "Model properties...", then in the window that pops up the "Iteration" tab. There are several possibilities here. This may also be useful in conjunction with a script tool that checks for the condition, then sets a variable false when that happens.
Chris Donohue, GISP
A general observation - when folks find they need to use iterators with conditions, that often is the point they end up going to Python scripting instead of Modelbuilder.
That said, there are some options in Modelbuilder to do what you are looking for. But Modelbuilder is limited in this regard. It will depend in part on how complex a condition is that you want to trigger the end of the run and whether the data is structured to support this.
Some possibilities:
- Use a While Iterator (likely part of a "model within a model strategy" as mentioned by Joe Borgione ) While—Help | ArcGIS for Desktop
- Use a Stop "Model-only tool". This can be useful if one does not want to do the "model within a model strategy" Stop—Help | ArcGIS for Desktop
- It may be possible to write a short bit of Python code to do the check for when to stop, then import that into Modelbuilder as a script tool and then add it to the Model. A quick tour of creating tools with Python—Help | ArcGIS for Desktop
- There are Iterator properties that can be set at the Model-level that may do what you want. In the Model itself, click on "Model" in the top menu, then "Model properties...", then in the window that pops up the "Iteration" tab. There are several possibilities here. This may also be useful in conjunction with a script tool that checks for the condition, then sets a variable false when that happens.
Chris Donohue, GISP
Thanks everyone for help. I have mange to do this like that. I know it doesnt look pretty but it works. Is it possible to put select by location or attribute after iterate feture classes so i dont have to add every one layer to the model? Even if i tried to make via submodel i still cloudnt integrate select by location with submodel output.
I finally figured out how to do what i wanted from the begining.
