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CRWR Online Report 2000-7
Object-Oriented
Modeling of Rivers and Watersheds
in Geographic Information Systems
By Kimberley M. Davis and David Maidment
ABSTRACT
It is possible
to take advantage of object-oriented programming and modeling techniques
to build a data model of custom features for GIS that supports hydrography
and hydrology. The unifying structure that ties river maps to river
analysis is the network built from rivers themselves. This thesis describes
the design process for the ArcGIS Hydro data model, discusses object-oriented
programming concepts, UML, and CASE tools, and shows how to apply the
ArcGIS Hydro data model using data from the National Hydrography Dataset.
The result is a data structure, not a process-based engineering model,
which can be used as-is for most situations, and extended to represent
unique conditions ifneeded.
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These materials may be used for study, research, and education, but
please credit the authors and the Center for Research in Water Resources,
The University of Texas at Austin. All commercial rights reserved. Copyright
2000 Center for Research in Water Resources.
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