I'm currently using ArcGIS 10 SP2 on Windows 7 64bit. I'm working on a very large railway alignment design project and need to generate "Average Catchment Slopes" for each watershed. The problem that I have is that the "Zonal Statistics as Table" tool does not process overlapping polygons. It's mentions in the help that if the polygons overlap, that should be processed interactively to overcome this. I haven't been able to find any supporting documentation to achieve this. Just a note, I have over 600 watersheds that I need to process and a manual process will not be possible if I'm to meet my deadline. Any advice will be appreciated.
I would really be interested in looking at the toolbox that you have developed. It would be greatly appreciated if you would be willing to email me a copy for ArcGIS 10. Thanks fo offering your assistance.
It is the garbage collection module. We were running into some memory issues after several iterations of the tool. The garbage collection module clean up unreferenced objects in memory. Take a look t this link.