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Open Source GIS : A practical look at the Open Source GIS Stack Presented at PSU Feb 2007 by

Open Source GIS : A practical look at the Open Source GIS Stack Presented at PSU Feb 2007 by Aaron Racicot – GIS Programmer, GISP Ecotrust aaronr@ecotrust.org www.reprojected.com. A Citizen of Salmon Nation. Who Am I?. B.S. Computer Science. M.S. Environmental Science.

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Open Source GIS : A practical look at the Open Source GIS Stack Presented at PSU Feb 2007 by

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  1. Open Source GIS: A practical look at the Open Source GIS Stack Presented at PSU Feb 2007 by Aaron Racicot – GIS Programmer, GISP Ecotrust aaronr@ecotrust.org www.reprojected.com A Citizen of Salmon Nation

  2. Who Am I? B.S. Computer Science M.S. Environmental Science Open Source User/Developer GIS Programmer Split Personality

  3. GIS – Geographic Information Systems Maps – Print / Electronic Cartography Spatial Data Creation/Collection GIS Spatial Processing Spatial Modeling Spatial Analysis Reasoning with a Sense of Place

  4. Ecotrust - Salmon Nation

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

  6. OSGIS Software Stacks… Desktop Desktop Software Stack

  7. OSGIS – Desktop Applications GRASS GIS

  8. OSGIS Software Stacks... Server/Web Web-based Software Stack

  9. OSGIS – Server/Web Tools GDAL/OGR GRASS GIS R-Statistics

  10. Desktop Raster/Vector Processing GRASS/GDAL/OGR - Data Crunching • Both Raster and Vector support • Very powerful tool set (similar to ArcINFO/ArcGRID) • Traditionally Poor GUI, but getting better • Very fast • Cross platform QGIS/GDAL/OGR – Data Viewing/Editing • Both Raster and Vector support • Nice GUI • Cross platform • QGIS can integrate with GRASS

  11. GRASS-Raster Grass Raster Processing

  12. GRASS-Vector Grass Vector Processing

  13. QGIS - Titan QGis 0.8

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

  15. Slippy Maps…OpenLayers Google Like Tools Super Slippy! Tile based image server

  16. Now what…. How is this useful to you???????

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

  18. Creating Data…. Digitizing, Modifying, extracting… Create new shapes Context Layer Viewing Create new attributes

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

  20. Web enable standard geo-data….

  21. Web enable non-standard geo-data…. How to display and interact with model data? GIS Model Results Web Based Real-Time GIS Model

  22. 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)

  23. Display unique data…. How can I plot geospatial and model data? #!/bin/csh # # GMT Example 24 $Id: job24.csh,v 1.5 2006/05/08 01:35:12 # # Purpose: Extract subsets of data based on geospatial criteria # GMT progs: gmtselect, pscoast, psxy, minmax # Unix progs: echo, cat, awk # # Highlight oceanic earthquakes within 3000 km of Hobart and > 1000 km echo "147:13 -42:48 3000 Hobart" >! point.d cat << EOF >! dateline.d > Our proxy for the dateline 180 0 180 -90 EOF set R = `minmax -I10 oz_quakes.d` pscoast $R -JM9i -K -Gtan -Sdarkblue -Wthin,white -Dl -A500 -Ba20f10g10WeSn \ -U"Example 24 in Cookbook" >! example_24.ps psxy -R -J -O -K oz_quakes.d -Sc0.05i -Gred >> example_24.ps gmtselect oz_quakes.d -L1000/dateline.d -Nk/s -C3000/point.d -fg -R -Il \ | psxy -R -JM -O -K -Sc0.05i -Ggreen >> example_24.ps awk '{print $1, $2, 0, $3, $3}' point.d | psxy -R -J -O -K -SE -Wfat,white >> example_24.ps awk '{print $1, $2, 14, 0, 1, "LT", $4}' point.d \ | pstext -R -J -O -K -Gwhite -D0.1i/-0.1i >> example_24.ps psxy -R -J -O -K point.d -Wfat,white -Sx0.2i >> example_24.ps psxy -R -J -O -M dateline.d -Wfat,white -A >> example_24.ps \rm -f point.d dateline.d .gmt* The Generic Mapping Tools http://gmt.soest.hawaii.edu/

  24. Where is Ecotrust going…DST’s Real-Time Web Decision Support Tools Web User Request Web Services Data Gathering Data Formatting Data Processing Static Data Storage Map Formatting Map Production The Problem Is The Arrows! Connecting a web request to server side GIS analysis is tricky Web User Response

  25. DST using GRASS/Mapserver Siuslaw Watershed Restoration Initiative Data Gathering Data Formatting Data Processing PHP Mapscript GRASS

  26. Where to go for more info Ecotrust • http://www.ecotrust.org OSGeo • http://www.osgeo.org OSGIS • Maptools - http://www.maptools.org • FreeGIS - http://freegis.org/ • Open Source GIS - http://opensourcegis.org/ Standards • OGC - http://www.opengeospatial.org/ Desktop • GRASS - http://grass.itc.it/ • QGIS - http://qgis.org/ • UDIG - http://udig.refractions.net/confluence/display/UDIG/Home • JUMP – http://jump-project.org/ • OSSIM - http://www.ossim.org/Welcome.html • OpenEV - http://openev.sourceforge.net/ Server/Web • Mapserver - http://mapserver.gis.umn.edu/ • OpenLayers - http://www.openlayers.org/ • MapBender - http://www.mapbender.org • MapBuilder - http://docs.codehaus.org/display/MAP/Home • MapGuide OS - https://mapguide.osgeo.org/ Tools • PostGIS - http://postgis.refractions.net/ • GDAL/OGR - http://gdal.maptools.org/index.html • PROJ.4 - http://proj.maptools.org/ • R-Statistics - http://www.r-project.org/ • GMT - http://gmt.soest.hawaii.edu/

  27. GRASS Demo…

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