Original User: GSCUser85
This is in some way related to my last post about collapsing geometry using da.InsertCursor.
That was solved by input from Chris Fox, thanks again.
My problem was a whole bunch of very badly captured polygons, many overlapping when they should'nt.
The input coord lists need to be reviewed and fixed.
I built a topology on these polygons and exported them to a poly fc.
This works, but you just get another bunch of overlapping polys. Understandable enough but not really what I wanted.
So started playing with all the geometry methods stuff. Fantastic, thank you the gurus at esri.
My routine attached here takes a poly fc with 6 overlapping circular polys, each has a "Name" - "1", "2", "3" etc. See jpg 1.
Then builds (after a lot of faffing about with dictionaries and lists) a set of non-overlapping polys, each of which has a text string of the identifiers of the input polys that make up this poly. Also add a count of the inputs for symbolisation purposes.
Output see jpg 2.
The real joy here is the ability to manipulate the geometry objects within a dictionary (or whatever you want), interact with them, compare them to others etc etc. Absolutely brilliant (the geometry methods, not my code to do it!)
Opens up a whole new way do doing analysis.
The routine is pure python / arcpy, it is not a tool! All paths hard coded and so forth. If you want to try this, need to look long and hard at the code and modify to suit.
Cheers,
Neil
