Internet Mapping

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Internet Mapping

• Where Weve Been and Where Were GoingSabine
  River Authority of Texas
• http//www.sra.dst.tx.us/presentations.htm

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Credits

• This project was done with the cooperation of the
  Texas Natural Resource Conservation Commission
  under the authorization of the Texas Clean Rivers
  Act.
• Special thanks to Susan Henderson of the Orange
  County Drainage District for technical assistance
  (and a shoulder to cry on)

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Where Weve Been

• Texas Orthoimagery Program Data for the Sabine
  River Basin
• Sabine Basin GIS Clearinghouse
• Texas Clean Rivers Program Web Mapping Pilot
  Project

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TOP Data for the Sabine

• Currently 2,401 re-sampled images available for
  previewing and downloading
• http//www.sra.dst.tx.us/pub/sra/srwmp/swi/gis/top
  .htm
• Search by
• CD-ROM name
• DOQ name
• County name
• Web map
• Have re-sampled data that we dont? Please make
  us a copy and well add it!

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Sabine GIS Clearinghouse

• Mandated by Texas Clean Rivers Program
• http//www.sra.dst.tx.us/pub/sra/srwmp/swi/gis/WEB
  GIS.HTM
• Node on the Federal Geographic Data Committee,
  National Geospatial Data Clearinghouse
• http//130.11.52.178/
• 127 databases on 95 hosts
• we can host your data!

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TCRP Web Mapping Pilot

• Map Objects Internet Mapserver 1.1
• http//www.sra.dst.tx.us8080/scripts/esrimap.dll?
  nameSabineCmdMap
• OpenLink - put our maps in your apps!
• http//www.sra.dst.tx.us/srwmp/swi/webmaps/demo_op
  enlink.htm

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TCRP Web Mapping Pilot, 2

• ArcExplorer
• Download free viewer at http//www.esri.com/softwa
  re/arcexplorer/
• General Map Module
• http//www.sra.dst.tx.us8080/isa/genmap/default.h
  tm(open in new window)
• more on templates at http//www.esri.com/software/
  mapobjects/ims/starter_apps/index.html

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Where Were Going

• Texas Orthoimagery Program Data for the Sabine
  Basin, Take II
• StratMap
• Open GIS Consortium
• ArcIMS

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TOP Data for the Sabine, II

• Mosaic and compress imagery with Mr.SID
• http//www.lizardtech.com/
• assisted by
• Susan Henderson, Orange County Drainage District
• P.R. Blackwell, Forest Resources Institute,
  Arthur Temple College of Forestry, Stephen F.
  Austin State University
• Dr. Gordon Wells, Texas Natural Resources
  Information System

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StratMap

• Strategic Mapping Initiative for Texas
• http//www.tnris.state.tx.us/stratmap/stratmap.htm
  
• National Hydrography Dataset (NHD)
• http//mapping.usgs.gov/mac/isb/pubs/factsheets/fs
  10699.html
• combines elements of USGS digital line graph
  (DLG) and USEPA Reach File (RH3).
• Based on 1100,000-scale but can incorporate
  higher resolution data

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Open GIS Consortium

• Web Mapping Testbed (WMT)
• http//www.opengis.org/wmt/index.htm
• GOAL Use a Web browser to seamlessly access,
  view, and exploit the vast, diverse, and widely
  distributed geospatial data holdings on the Web.
• OBJECTIVES quickly produce open geoprocessing
  Web technologies and then generate the associated
  OpenGIS Specifications for these technologies.

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Web-Based Mapping Technology Vision
Web servers and map viewer clients interact to

• Discover, access and retrieve views from
  multiple servers

• Display multiple layers of geographic data
  within a single web application

• Query and update

• Provide interface for visualization, Decision
  Support, etc.

• Support geocoded raster, vector, matrix, and
  other data

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Basic Architecture
Web Map Services
Viewer Client
Middleware
Tools

• Standard web browsers map servers use OGC specs.

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WMT Phases

• Current
• Map display capabilities for a variety of client
  environments accessing Web-distributed databases
  (open demos in a new window)
• CubeWerx Cascading Map Server Demo
• IonicSoft generic view client (Java Applet)
• Subsequent
• Geospatial catalogs
• Web publishing
• greater diversity of client applications

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ArcIMS

• http//www.esri.com/software/arcims/index.html
• Usability of ArcView Internet Map Server with
  the power of Map Objects Internet Map Server
• Released July 1999
• To ship Fall 1999

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ArcIMS, features

• Integrate local and Internet data
• Easily create, design, and manage Web sites
• Powerfully intelligent clients
• Highly scalable server architecture
• Dynamically edit or annotate maps
• High-quality cartographic rendering

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The End