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Abstract
A Technique to Maximize ArcIMS Performance with Large Shapefiles
Track: System Implementation for GIS
Author(s): Charles Crocker, Bryan Baker
Web sites delivering spatial information need to support both scalability and high performance to render large volumes of data with minimal response times. For Web sites using ArcIMS and shapefiles, the site's mapping performance can be very sensitive to the shapefile size and the query method used to extract geometries from the shapefile. This paper presents a technique using the ArcIMS geocoding engine to dramatically reduce the lag time between a user request and map delivery to the browser. In the case of a shapefile containing roughly half a million geometries, performance tests indicate that the Farallon Geographics' technique results in roughly 40-fold performance boost.
Charles Crocker
Farallon Geographics, Inc.
910 Harrison Street, 2nd Floor
San Francisco , CA 94107
USA
Phone: 415 227 1140
Fax: 415 227 1148
E-mail: dwuthrich@fargeo.com
Bryan Baker
Esri
380 New York Street
Redlands 92373
USA
Phone: (909) 793-2853
Fax: (909) 307-3025