You are currently viewing an archived version of Topic Overlay.
If updates or revisions have been published you can find them at Overlay.
Author and Citation Info:
DiBiase, D., DeMers, M., Johnson, A., Kemp, K., Luck, A. T., Plewe, B., and Wentz, E. (2006). Overlay. The Geographic Information Science & Technology Body of Knowledge. Washington, DC: Association of American Geographers. (2nd Quarter 2016, first digital).
Learning Objectives:
Explain why the process “dissolve and merge” often follows vector overlay operations
Outline the possible sources of error in overlay operations
Compare and contrast the concept of overlay as it is implemented in raster and vector domains
Demonstrate how the geometric operations of intersection and overlay can be implemented in GIS
Demonstrate why the georegistration of datasets is critical to the success of any map overlay operation
Formalize the operation called map overlay using Boolean logic
Explain what is meant by the term “planar enforcement”
Exemplify applications in which overlay is useful, such as site suitability analysis
You are currently viewing an archived version of Topic Overlay. If updates or revisions have been published you can find them at Overlay.
DiBiase, D., DeMers, M., Johnson, A., Kemp, K., Luck, A. T., Plewe, B., and Wentz, E. (2006). Overlay. The Geographic Information Science & Technology Body of Knowledge. Washington, DC: Association of American Geographers. (2nd Quarter 2016, first digital).