knowledge systems open source gis the ecotrust mission to utilize new innovative technology aaron...
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KNOWLEDGE SYSTEMS
KNOWLEDGESYSTEMS
Open Source GIS
The Ecotrust mission to utilize new innovative
technology
Aaron Racicot – GIS
Programmer
KNOWLEDGESYSTEMS
KNOWLEDGE SYSTEMS
Goals
• Utilize Open Source Technology– Save on cost– Rapid response to problems– Be an active participant in a community
• Develop web-based decision support tools– Gain a greater audience– Migrate from relying on complex/proprietary desktop
software for simple GIS tasks
• Create a “Salmon Nation” data repository– Automated data mining– Seamless data sets– WMS/WFS/OPeNDAP server/client
KNOWLEDGESYSTEMS
KNOWLEDGE SYSTEMS
Open Source Technology
• Fedora Core 3• Apache 2.0.52• PHP 4.3.10• PostgeSQL 8.0.1• GEOS 2.2.1• PostGIS 1.0.0• GDAL/OGR 1.2.5• Proj.4 4.4.9• Mapserver 4.4.2• Grass 6.0.0
International User Groups
Conferences
Email/Web forums
Source Code
KNOWLEDGESYSTEMS
KNOWLEDGE SYSTEMS
Key Pieces
• Mapserver Web Based Mapping– Can be run as CGI or as script– Utilizes SWIG to create Mapscript environment– Interfaces to GDAL/OGR for raster and vector
processing– Interfaces to PostGIS and SDE– Faster than ArcIMS
• PostgreSQL/PostGIS– Dynamic relational database with OGC compliant
interfaces– Mainly focused on vector storage, but soon to support
rasters
KNOWLEDGESYSTEMS
KNOWLEDGE SYSTEMS
Web-based decision support tools
• Utilize powerful GIS on backend and web based GIS on front end.– GRASS – used for vector and raster based processing via
command line calls from PHP.– Mapserver used to directly display results from online
analysis– A new way of looking at senario based decision making
• Allowing users to interact– Automated file upload and run management– Web-based polygon capture for senario based simulation
• Ocean Planner - Demo
KNOWLEDGESYSTEMS
KNOWLEDGE SYSTEMS
“Salmon Nation” data repository
• Ecotrust has a geographic area of interest in the area known as Salmon Nation.– Data stored in common formats (ArcINFO/GRID,
PostGIS, Shapefiles, GTiff, etc)– Seamless data where posible– Automated data mining for easy data refresh– Web-based interfaces for both intranet and internet
access– Seamless data extraction over arbitrary areas by
chopping files or aggregating multiple files
• Serve our data via WMS/WFS/OPeNDAP• Use remote data when possible
KNOWLEDGESYSTEMS
KNOWLEDGE SYSTEMS
Cool projects underway
• Base data compilation– All TIGER data for USA. Compiled and processed– 10 Meter DEM automated download
• Keyhole like zooming– Siuslaw Watershed – Demo
• User based interfaces– Utilizing PHP sessions– Custom upload/download– Saved state between sessions
• Applet development