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.

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