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Find overlapping polygons (ArcGIS 9.2/9.3)



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Author Ken Buja
File Name OverlappingFeatures_92SP6.msi
Language VB.net
Last Modified Sep 23 2009
Status of work Public Domain
Software ArcGIS Desktop
File Size 399.5 kb
Downloads 5654

ArcScripts is intended for the free exchange of scripts and tools related to ESRI software products. Please alert the moderator if this script is a demo, trial-version, or an advertisement for a retail product.

Summary
This tool finds the overlapping polygons within a layer. A dialog box is displayed showing a list of the features that overlap other features. Each row in the list contains the OID of a feature and a list of the features that overlap that feature. By default, this is a non-repeating list. For example, if polygons 1 overlaps polygon 2 and polygon 2 also overlaps polygon 3, the list will look like

Feature ID | Overlapping Features
1 | 2
2 | 3

However, a repeating list can be generated by selecting the "Show all features" checkbox.

Feature ID | Overlapping Features
1 | 2
2 | 1, 3
3 | 2

Each feature can be selected from the list, zooming the display to the extent of that feature. This list of overlapping feature OIDs can be exported as a text file. The user also has the option to create an output polygon dataset showing the intersection of the features.

After running the installer program, the tool will be found in the Customize dialog in the Biogeography Tools category as "Find overlapping polygons".

PREREQUISITES:
- ArcGIS 9.2 Service Pack 6 or ArcGIS 9.3
- ArcGIS .NET Assemblies
- Microsoft .NET Framework v2.0

To install this tool in Vista, open a command line prompt as an administrator and use the command

msiexec /i "path-to-package.msi"

If there are no spaces in the path name, the quotes aren't necessary.

Version History
8 Oct 2008
� Enhancement: Now installs on ArcGIS 9.3

23 May 2008
� Bug Fix: Installer script gives incomprehensible error message for older service packs

5 Dec 07
� Enhancement: User can select repeating or non-repeating list

4 Oct 07
� Bug Fix: Duplicate polygons were not included.
� Bug Fix: Crashed after 170 features for Personal Geodatabase datasets.

7 Aug 07
� Initial Release
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