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Using QGIS, GRASS and PostGIS to answer some difficult questions How Open Source GIS can help make your life easier and help you find beer on a Sunday
Using QGIS, GRASS and PostGIS to answer some difficult questions
How Open Source GIS can help make your life easier
and help you find beer on a Sunday
A simple spatial query
Vector data types available through OGR
Where's the beer?
Geocode Query
QGIS and the GRASS Plugin
GRASS’ Vector to Raster Tool
r.grow Output
SELECT Round(Sum(c.pop10*(ST_Area(ST_Intersection(c.geom, z.the_geom))) / c.totarea))
FROM(SELECT ST_Union(ST_Buffer(b.geom,8046.72)) as the_geom
FROM breweries.brewery b) as z, indiana.block_pop c
WHERE ST_Intersects(z.the_geom, c.geom);
Counting all Hoosiers Who Live Within Five Miles of a Microbrewery
Multipolygon Buffer
QGIS Generated Contours
Cartography / Layout Editing
Versioned Editing Mr Sid support
File Geodatabase support
Current OSGeo Limitations
Where to go for helpPostGIS: Refractions Research
http://refractions.net
QGIS: QGIS Foundationhttp://qgis.org
PostGIS In ActionBy Leo Hsu & Regina Obe
http://postgis.us
GIS StackExchangehttp://gis.stackexchange.com
Philip BernardMapping & Spatial [email protected]
