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The Geospatial Web

The Geospatial Web. Matt Kenny RIDOLFI, Inc 02/23/2010. E-mail: matt@ridolfi.com Web: http://www.mkgeomatics.com/apps/sal. Outline. Defined Google’s Revolution Web Mapping vs. Web GIS? A Typical System ESRI’s Take An Open-Source Alternative. Defined.

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The Geospatial Web

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  1. The Geospatial Web Matt Kenny RIDOLFI, Inc 02/23/2010 E-mail: matt@ridolfi.com Web: http://www.mkgeomatics.com/apps/sal

  2. Outline • Defined • Google’s Revolution • Web Mapping vs. Web GIS? • A Typical System • ESRI’s Take • An Open-Source Alternative

  3. Defined • Web mapping is the process of designing, implementing, generating and delivering maps on the World Wide Web. – Encyclopedia of GIS • XEROX’s PARC Map Viewer • An Early Web Mapping App • Static, Slow, But Innovative

  4. Defined “Web GIS harnesses the power and reach of the Web and integrates the rich knowledge resources of GIS—authoritative databases, models, and spatial analysis. Web GIS goes far beyond simple visualization and mapping and provides access to full geographic knowledge to everyone. Over time, Web GIS will become an essential part of the infrastructure of society.” – Jack Dangermond, ESRI Founder and President.

  5. Google Maps • Feburary, 2005 • Google Maps launches • Tiled Map Service • Ease-of-use and speed fundamentally shift our expectations of web mapping applications

  6. Google Maps • How does it work? • Basemaps are cut into small tiled-images at eighteen pre-defined scales • Download only the requiredtiles to fill the current mapextent

  7. Google Maps

  8. Web Mapping to Web GIS • Cached map services are great for display, but lack intelligence. • Augmented with GIS server technology, cached maps provide a cartographic backdrop to Web GIS applications. • Query • Identify • Geoprocessing

  9. Web GIS • Web GIS applications extend the GIS analyst’s reach • Empower non-GIS users with access to spatial data • Policy (Managers / Decision Makers) • Public (Citizens) • Technical (Biologists / Cultural Resource Surveyors)

  10. Web GIS • Potential to free the Lone-GIS-Professional from filling redundant map requests • Allows focus to shift from making cartographic outputs to producing analysis data • After deployment, a GIS analyst can update application with updated layers • Update map services via ArcDesktop or ArcGIS Server web management interface

  11. Web GIS • Non-GIS users collaborating and manipulating GIS systems. GeoDesign

  12. The General Picture

  13. Web Mapping APIs

  14. ArcGIS Services

  15. An Open-Source Alternative • FOSS GIS IS: • Highly Developed • Customizable • Supported • FREE http://www.osgeo.org/ http://opengeo.org/

  16. An Open-Source Alternative • OSGeo: • 8/21 Projects Related to Web Mapping • OpenGeo: • OpenGeo Suite http://www.osgeo.org/ http://opengeo.org/

  17. An Open-Source Alternative

  18. An Open-Source Alternative

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