Open Source GIS

gisgeek.pdx.edu/opensourcegis



Open Source, Open Standards, Open Data

Open Source Initiative, OSGEO, Sourceforge,
GitHub
Motivation
Standards: OGC, W3C, ISO, etc Linus quote

Software/Car analogy

Desktop Client vs Web Client

Desktop: gvSig, Quantum, Udig, OpenJUMP, ILWIS, DeeGree, GRASS, etc
Very competitive with COTS*, closing in...
Web: Mapserver, GeoServer, Autodesk Mapguide, Mapnik, OpenLayers, Leaflet, Tilemill, Weave, etc
In the history of web mapping, open source has forced COTS to play catch-up
PSU Stack: Linux, Apache, Mapserver, PostGIS, OpenLayers
Our "best practices" setup, with some variations
* Comercial Off The Shelf

Mobile

gvSig Mobile,(Android) MapBox (iPad), CyberTracker (Windows Mobile, Droid coming soon), GeoPapparazzi (Droid)
Still in the early stages for full functionality, mostly able to browse custom maps, from open source servers
Many non-traditional ways to collect data using "athletic" apps, ie Jogging, or dog walking to record routes
Other options include OpenStreetMap, and CrowdMap (related to disaster relief mapping)

The "Ecosystem"

GDAL – Raster Library
OGR – Vector Library
GD – Graphics Creation
Proj.4 – Coordinate Systems
FreeType – Nice fonts!
GEOS – Geometry Engine
Shapelib – Shapefile library
Java, C, Python, etc, all have versions of these functionalities

Staying up-to-date

Slashgeo(Good signal/noise ratio!), Planet.osgeo.org (Sort of noisy, and more techy)

History

Web Mapping examples

Production Examples from PSU

Atlas of Oregon Lakes (hybrid open source, with ArcGIS Server)

Glaciers - Glacier Change Database of Western US

NGMDB Geographic search

Geologic Maps for North America

Oregon Geology

OSCDL - Oregon Sustainable Communities

LiDAR

Other "frameworks"

OpenLayers 

Fusion

MapFish

GeoExt 

Randoms

parallel processing (realtime decision support?): OSSIM, Grass?, PostGreSQL

Geos

ppt

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