Hawaii Pacific GIS Conference 2012: Real-Time Data Acquisitions - Bringing Internet Data Content into GIS Applications
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This document discusses bringing internet data content into GIS applications. It describes how GIS applications can run on desktops, web browsers, and mobile devices. It also discusses different approaches for accessing internet data, including hyperlinks, feeds like GeoRSS, and services. It provides examples of different types of services like map, feature, geoprocessing, and specialized services and how they can be accessed and used.
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Hawaii Pacific GIS Conference 2012: Real-Time Data Acquisitions - Bringing Internet Data Content into GIS Applications
- 1. Bringing Internet Data Content into GIS Applications Rod Low Hawaii Pacific GIS Conference Honolulu, March 5-7, 2012
- 2. Application Platforms • Desktop • Web Browser • Mobile Device
- 3. Application Platforms • Desktop • Web Browser Need Server for GIS Data & Functionality • Mobile Device
- 4. Application Platforms • Desktop • Web Browser • Mobile Device Can Survive Interruptions of Service
- 5. •Emergency Management Situational Viewer •Accessible from Honolulu EOC (Emergency Operation Center) & Remotely •Runs in Web Browser (IE specified) •Client uses Adobe Flex with ArcGIS Flex API 2.3 •Server uses ArcGIS 10 Server with Enterprise SDE
- 6. HONUA • Situational Viewer • Mashup
- 7. Approaches • Hyperlinks • Feeds • Services
- 8. Approaches • Hyperlinks - Open a browser pointing to the specified URL - Does not digest the information • Feeds • Services
- 11. Approaches • Hyperlinks • Feeds - GeoRSS Standard - Other (often legacy) • Services
- 12. GeoRSS feeds • RSS is an XML Standard - GeoRSS Standard adds Spatial Tags Real world seldom completely correct:
- 15. Other Feeds • Any regularly updated web site, any format • Example NOAA weather feeds • Tools available for Web Scraping - Generic (e.g. XML to CSV) - Vendor-Specific (e.g. import to SDE)
- 17. Approaches • Hyperlinks • Feeds • Services
- 18. Services Map & Image Services Geometry Feature Service Special (examples) Geocoding Network Service 3 D Service Geoprocessing Service
- 19. Services Map & Image Services • Basemap - Cached Tiles for improved performance - Fixed Scales • Dynamic Service - User control over Visibility, Scale & Symbology
- 24. Accessing Services • SOAP (older approach) • REST “endpoint” DEMO: http://geodata.sdal.hilo.hawaii.edu/ArcGIS/rest/services /Statewide/Hazards/MapServer
- 25. Geometry Service • GIS Functionality – e.g. re-project data
- 26. Feature Services • Added at ArcGIS 10 • Allows Web Editing
- 29. Specialized Services • Geocoding • Network Service • 3 D Service
- 30. Geoprocessing Services • You have more control • If a specialized service is available, it will be much more efficient
- 31. Putting it all together • ERG (Chemical Spill) • Need to know wind direction - Web Scrape the NOAA current weather - Geoprocessing to find nearest weather gage
- 34. Conclusions • GeoRSS standard needs to be better followed Until then: - Customized code needed for reading most XML - Web Scraping useful • Even desktop benefits from Internet Data - Current Conditions might be necessary for GIS Analysis • Synergy in combining links, feeds & services
- 35. Contact information: rlow@esri.com Reference: http://www.arcgis.com/home/item.html?id= 9ff56fbe3c4f4b749fd6066424685280