Knowledge Base - Technical Articles
HowTo: Determine if a region subclass has overlapping features
| Article ID: | 19313 |
|---|---|
| Software: | ArcGIS - ArcInfo 8.0.1, 8.0.2, 8.1 ArcInfo Workstation 7.2.1 |
| Platforms: | N/A |
Summary
This document shows how to determine if a region subclass has overlapping features.
Procedure
This example uses a coverage called CLEANEDCOV, which contains a region subclass called TEMP.
- Use REGIONPOLYCOUNT to create an INFO file that lists the number of region features that overlap each polygon.
Usage: REGIONPOLYCOUNT <in_cover> <out_info_table>
{$ALL|subclass...subclass}
Arc: REGIONPOLYCOUNT cleanedcov overlaps.frq temp
- Start Tables, select the INFO file created by REGIONPOLYCOUNT, and use LIST to display item values for the selected records.
Arc: TABLES
Tables: SELECT overlaps.frq
Tables: LIST
Record POLY# TOTAL TEMP
1 1 0 0
2 2 1 1
3 3 2 2
4 4 1 1
- RESELECT records where TOTAL > 1 to find polygons that are part of multiple region features.
Tables: RESELECT TOTAL > 1
1 Records Selected.
Tables: LIST
Record POLY# TOTAL TEMP
3 3 2 2
The polygon with an internal number = 3 is part of 2 region features in the TEMP subclass.
Created: 5/22/2001
Last Modified: 7/17/2001
