Geometry Updating for Geospatial Data Integration
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Date
2010
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
International Archives of Photogrammetry and Remote Sensing
Abstract
Lots of geospatial data has been collected within the last decades due to advances in digital spatial data capturing technologies and
this has brought in different versions of the same data sets. Although various spatial and mapping organizations are updating and
revising geospatial databases with new data/information about our rapidly changing environment; there are challenges of how to
effectively and quickly update and adjust the geometries so that there are no sliver and dangling issues as a result of opening and
overlaps due to variation between different versions of same data. This is vital in geospatial data updating and management in geosystems
and databases. The paper describes an approach of geospatial geometry updating and adjustment basing on paradigm of
point as being the simplest and smallest spatial primitive to handle and that it can be manipulated to define all geospatial data
elements. It integrates methodologies from both earth sciences and computer science. Every unique identifiable spatial instance in
form of point is given an identifier and it is this that is manipulated during geometry adjustment to transfer updates from the
source/reference data to the data set being updated/adjusted. This approach solves the issue of silvers and dangling which are always
created during data merging and the differences that are always brought into databases due to variations in data capture, storage, and
manipulation approaches.
Description
Keywords
Data Integration, Point Primitives, Geometry updating and Adjustment, Geospatial Management
Citation
Wadembere, I., & Ogao, P. (2010). Geometry updating for geospatial data integration. International Archives of Photogrammetry and Remote Sensing, 38, 52-57.