Geographic Information Systems
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underdark♦
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Open source GIS expert, OSGeo Charter, QGIS PSC member, and author of Learning QGIS and QGIS Map Design.

Interests: open source GIS, open data, spatial databases, GIS-T, data visualization for exploration

Twitter: @underdarkGIS

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  • Vienna, Austria
  • anitagraser.com
  • Member for 9 years, 6 months
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  • Last seen Jan 21 at 19:36

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Top posts (1,411) All Questions Answers | Votes Newest

129 Difference between WGS84 and EPSG:4326? Nov 9 '10
122 Adding Basemaps from Google or Bing in QGIS? Feb 12 '12
94 How to Start Web Mapping? Apr 4 '11
93 Renaming attributes/fields in shapefile attribute table using QGIS? Oct 26 '13
83 Differences between DEM, DSM and DTM? Feb 1 '11
76 What are the pros and cons of PostGIS geography and geometry types? Mar 2 '11
76 Building effective heat-maps? Jul 24 '10
74 Visualising WKT geometry string in QGIS Aug 9 '11
61 Visualizing speed of movement on static (= printable) map? Oct 20 '10
61 Seeking QGIS tutorials and web resources? Nov 19 '10
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