Geographic Information Systems
Profile Activity
Meta user
Network profile
79,174
reputation
16
207
385

underdark♦
Moderator

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

1,371
answers
61
questions
~5.7m
people reached
  • Vienna, Austria
  • anitagraser.com
  • Member for 10 years, 7 months
  • 41,017 profile views
  • Last seen yesterday

Communities (20)

Top Meta Posts
8
47

Top network posts

Top tags (542)

Score 4,177
Posts 991
Posts % 69
Score 832
Posts 138
Score 440
Posts 72
Score 397
Posts 54
Score 218
Posts 69
Score 204
Posts 75
View all tags →

Top posts (1,432)

All Questions Answers
Votes Newest
152 Difference between WGS84 and EPSG:4326? Nov 9 '10
144 Adding Basemaps from Google or Bing in QGIS Feb 12 '12
109 Renaming attributes/fields in shapefile attribute table using QGIS? Oct 26 '13
99 How to Start Web Mapping? Apr 4 '11
91 Differences between DEM, DSM and DTM? Feb 1 '11
84 Visualising WKT geometry string in QGIS Aug 9 '11
78 What are the pros and cons of PostGIS geography and geometry types? Mar 2 '11
77 Building effective heat-maps? Jul 24 '10
63 How to convert/typecast from Polygon to Multipolygon in PostGIS? Sep 1 '11
62 Visualizing speed of movement on static (= printable) map? Oct 20 '10
View all questions and answers →

Badges (608)

Gold

16

Rarest

Silver

207

Rarest

Bronze

385

Rarest

View all badges →