I've got a python script that is connecting a squence of points to make lines, and putting them into a feature class (based on answers to my previous question). It works wonderfully on a small area that I was using to debug and test (~25 meters, 20 points), but then when I put it into a real-world scenario (~1000 meters, ~500 points), it breaks.
The spatial index grid size is invalid.
Looking into the ArcGIS help suggestions to fix/prevent that, this page suggests recalculating the spatial index grid (directions here), but my polyline feature class doesn't have that option when I am in the "Indexes" tab -- there's no "Recalculate" button at all, and the "Delete" button is grayed out. So how can I fix the error? (I tried simply deleting my original feature class and making a new one, on the theory that my original "little" test case was setting the spatial index grid too small; however, even with a brand-new feature class, I have the same error.)
The problem is more specifically the number of dots I'm trying to connect during one run of the script -- less than ~50 is fine, more than ~100 is not...*
ArcGIS for Desktop with Advanced level license, data stored in feature class in a file geodatabase.