I have features that are spread across several UTM zones that I would like to produce maps for automatically. I would like to iterate through the zones: have a model select features by UTM zone (eg 18N), project the features appropriately, then export a map of each feature. If I type NAD_1983_UTM_Zone_%variableUTMZone% into the output coordinate system box in the project tool, the box empties as soon as I leave it. Although I can see how this could be done with if else statements, I would like to avoid a Python script with a large if elif else statement cluster if I can.
so you have exposed the output coordinate system as an input to the Project tool in the model? Do you have a screen of part of that model? As for iterating that portion, you iterating the Project tools itself. which may mean you need some sort of key/value pair to associate things with the different zones. It does seem however that you are traversing into areas best handled by python, even if it is a submodel within the workflow
It doesn't matter if I expose the output coord system parameter or not: either way, it seems only able to accept something from a drop down menu, although the dialog box permits me to change the text. I was hoping to do something like NAD_1983_UTM_%UTM_ZONE% and have UTM_ZONE update. Note there is no iterator here...it would be right before the select bed features by utm zone.