The document discusses the Open Source Geospatial Foundation (OSGeo), an organization that promotes open source geospatial software and data. OSGeo provides resources and support for open source geospatial projects, promotes open standards and interoperability, and encourages education and use of open source geospatial software. Examples are given of desktop and web-based open source geospatial applications for tasks like data analysis, mapping, and spatially enabling databases. Information is provided on OSGeo projects, events, and local user groups as well as resources for learning more.

1. Open Source Geospatial Foundation (OSGeo) : Exploring the cross-roads of organization, integration, and acceptance of OS Geospatial in the real world Presented at OSCON 2007 by Aaron Racicot – GIS Programmer, GISP Ecotrust (www.ecotrust.org) [email_address] Z-Pulley Inc. (www.reprojected.com) [email_address]

2. Open Source Geospatial – What Is It? OS Core (Linux) OS GIS Base Tools (GDAL, FDO, PostGIS, etc.) OS GIS Web Apps (Mapserver, MapGuide, OpenLayers, etc.) OS Base Tools (Apache, Compilers, etc.) OS GIS Desktop Apps (QGIS, GRASS, UDig Jump, OSSIM, etc.)

3. OSGeo – Open Source Geospatial Foundation Board of Directors Website Fundraising Incubation Promotion and Visibility Public Geospatial Data Education and Curriculum System Administration Charter Members General Members Projects

5. OSGeo – Projects Mapbender Mapbuilder MapGuide OS MapServer OpenLayers GRASS OSSIM QGIS FDO GDAL/OGR GeoTools GeoNetwork Projects

6. OSGeo – Events

7. OSGeo – Local Groups

8. A picture speaks louder than words…

9. Examples - Desktop Grass Raster Processing

10. Examples - Desktop QGis 0.8

11. Examples - Web-Based AJAX-User Based Data Filter GMT generated graphics Spatially constrained queries and scenarios Chameleon Mapserver framework PostGIS Spatial Data

12. Slippy Maps…OpenLayers “ Google Maps” Like Tools Tile based image server Super Slippy!

13. How is this useful to you?

14. Personal Use…. Thanks to Dylan Beaudette : http://casoilresource.lawr.ucdavis.edu/drupal/node/244 Navigating Wilderness Areas with GRASS Classification Cost Surface

15. Creating Data…. Digitizing, Modifying, Extracting… Context Layer Viewing Create New Shapes Create New Attributes

16. Transforming Data…. How to get coordinates in UTM to Geo-NAD83?

17. Web enable geo-data….

18. Spatially enable your database…. How to select data within a polygon area? Intersects Geometry Definition Distance(geometry, geometry) Equals(geometry, geometry) Disjoint(geometry, geometry) Intersects(geometry, geometry) Touches(geometry, geometry) Crosses(geometry, geometry) Within(geometry A, geometry B) Overlaps(geometry, geometry) Contains(geometry A, geometry B) Intersects(geometry, geometry) Relate(geometry, geometry, intersectionPatternMatrix) Relate(geometry, geometry) Centroid(geometry) Area(geometry) Length(geometry) PointOnSurface(geometry) Boundary(geometry) Buffer(geometry, double, [integer]) ConvexHull(geometry) Intersection(geometry, geometry) SymDifference(geometry A, geometry B) Difference(geometry A, geometry B) GeomUnion(geometry, geometry) GeomUnion(geometry set) MemGeomUnion(geometry set)

19. What am I doing…