Ecodistricts Online Mapping Tool David Percy Geospatial Data Manager PSU Institute for Metropolitan...
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Transcript of Ecodistricts Online Mapping Tool David Percy Geospatial Data Manager PSU Institute for Metropolitan...
Ecodistricts Online Mapping Tool
David PercyGeospatial Data Manager
PSU Institute for Metropolitan Studies
Co-leads: Vivek Shandas, Will Garrick, Jeff Kistler and PoSI
NNIP 2010 Fall- OaklandI would have written a shorter letter, but I did not have the time. - Blaise Pascal
Greater Portland Vancouver Indicators
Regional Equity Atlas
Ecodistricts Assessment
Tools
Other, including Teaching and
Research
PSU Data Commons
Greater Portland Vancouver Indicators
Regional Equity Atlas
Ecodistricts Assessment
Tools
Other, including Teaching and
Research
PSU Data Commons
Geometries:
Census Tract
Zip code
Neighborhood,
Etc
Each with a unique geometry id
Attribute data:
Geom_ID
Attribute
Value
Year
Data Architecture
Short Stack
• PostGIS – (open source Oracle Spatial, basically)
• Openlayers – (open source equivalent to ArcGIS’ javascript
mapping client for AGS)
• No mapserver or geoserver for rendering, rendered in client
Open standards for delivery
• Uses KML– an OGC standard now, though originally
developed for Google Earth.
• Could use GeoJSON, which might parse faster than XML in the browser.
• KML used due to easy support in OpenLayers
• OpenStreetMap for base layer