User underdark - Geographic Information Systems Stack Exchange

underdark

Moderator

Member for 13 years, 4 months
Last seen more than a month ago

Twitter
GitHub
anitagraser.com
Vienna, Austria

1,382 Answers

Score Activity Newest

183 votes

Accepted

Difference between WGS84 and EPSG:4326

answered Nov 9, 2010 at 18:15

160 votes

Accepted

Adding basemaps in QGIS

answered Feb 12, 2012 at 20:14

131 votes

Accepted

Renaming attributes/fields in shapefile attribute table using QGIS

answered Oct 26, 2013 at 13:20

105 votes

How to Start Web Mapping?

answered Apr 4, 2011 at 20:58

96 votes

Accepted

Differences between DEM, DSM and DTM?

answered Feb 1, 2011 at 21:24

94 votes

Accepted

Visualising WKT geometry string in QGIS

answered Aug 9, 2011 at 15:21

87 votes

Accepted

What are the pros and cons of PostGIS geography and geometry types?

answered Mar 2, 2011 at 13:52

77 votes

Accepted

Building effective heat-maps?

answered Jul 24, 2010 at 11:37

69 votes

Accepted

How to convert/typecast from Polygon to Multipolygon in PostGIS?

answered Sep 1, 2011 at 7:34

61 votes

Seeking QGIS user interface tutorials and web resources

answered Nov 19, 2010 at 8:03

59 votes

Accepted

Making spatial view in PostGIS and adding it as layer in QGIS?

answered May 18, 2012 at 19:48

56 votes

Change style properties of several layers simultaneously?

answered May 8, 2012 at 20:17

54 votes

Accepted

Creating drive time polygons using Open Source tools?

answered Oct 27, 2010 at 16:13

52 votes

Accepted

Converting MapInfo TAB and/or MIF to SHP using free tools or ArcGIS for Desktop core product?

answered Jul 26, 2010 at 9:21

49 votes

Accepted

Extracting raster values at points using Open Source GIS?

answered Nov 16, 2010 at 13:07

47 votes

Accepted

Open source methods for kriging?

answered Aug 11, 2010 at 16:11

46 votes

Accepted

Manually placing labels in QGIS?

answered Feb 2, 2012 at 7:54

44 votes

Accepted

Elevation color ramps for DEMs in QGIS

answered May 5, 2014 at 18:33

39 votes

Accepted

Is there a way to add system date or time in print composer?

answered Aug 24, 2012 at 7:51

39 votes

Bounding box for PostGIS table

answered Sep 23, 2011 at 18:39

37 votes

Using replace string function in QGIS Field Calculator

answered Nov 26, 2013 at 16:54

37 votes

Accepted

Setting all pixels with value <= 0 to "nodata" in DEM raster

answered Dec 31, 2013 at 13:53

35 votes

Accepted

Understanding QGIS buffer tool units

answered Apr 20, 2012 at 6:48

32 votes

Accepted

Why does PostGIS installation not create a template_postgis?

answered Jan 29, 2012 at 7:36

32 votes

Grouping and counting attribute data in QGIS

answered Apr 16, 2016 at 11:09

30 votes

Accepted

Getting started with QGIS plugin development?

answered Oct 20, 2011 at 9:04

30 votes

Accepted

Concatenating fields in field calculator of QGIS?

answered Jul 12, 2011 at 12:02

29 votes

Accepted

Joining attributes from nearest point in QGIS?

answered Jun 22, 2011 at 21:44

29 votes

Accepted

Styling road maps with QGIS?

answered Jun 1, 2011 at 14:17

28 votes

Accepted

Curved point-to-point "route maps"

answered Jan 16, 2011 at 23:30

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