Unit 186 - The polygon overlay operation

1. About the main contributors

• original contributor
• Dennis White
• Environmental Protection Agency, Corvalis OR
• editor
• Karen K. Kemp
• Deparmtent of Geography
• University of California
• Santa Barbara CA

2. Details about the file

• current URL of file
• http://www.ncgia.ucsb.edu/giscc/units/u186/
• last revision date
• October 7, 1997
• unit title
• The polygon overlay operation
• unit key number
• 186

3. Key words

• polygon overlay, sliver polygons, polygon intersection, algorithms, computational complexity

4. Index words

• polygon overlay, sliver polygons, polygon intersection, algorithms, computational complexity

5. Prerequisite units

6. Subsequent units

7. Other contributors to this unit

8. Revision history

• August 1990 - original unit published in the original NCGIA Core Curriculum in GIS
• October 7, 1997 - first posted to net