User HeikkiVesanto

569 votes

7 answers

495k views

Measuring accuracy of latitude and longitude?

Saurabh

5,817

asked Apr 18, 2011 at 7:16

184 votes

47 answers

117k views

Seeking examples of beautiful maps? [closed]

cartography

Andy W

4,176

asked Oct 30, 2010 at 22:56

142 votes

42 answers

20k views

What free programs should every GIS user have installed?

open-source-gis software-recommendations free-software

Radar

10.6k

asked Jul 12, 2011 at 20:47

64 votes

5 answers

101k views

Seeking Mobile GIS applications for Android Tablets? [duplicate]

software-recommendations android mobile-gis

brian.landes

61

asked Jul 21, 2011 at 0:02

60 votes

7 answers

13k views

Creating Vector Polygons with rendering performance like GISCloud?

postgis leaflet openlayers vector performance

NetConstructor.com

2,306

asked Oct 1, 2011 at 17:20

55 votes

10 answers

46k views

Creating drive time polygons using Open Source tools?

open-source-gis openstreetmap network routing pgrouting

RyanKDalton

22.5k

asked Oct 27, 2010 at 6:58

48 votes

5 answers

22k views

Smoothing DEM using GRASS?

qgis grass dem shaded-relief

Pablo

9,753

asked Jul 29, 2011 at 19:50

43 votes

3 answers

33k views

Seeking tutorials, books, papers, blogs, etc to handle spatial data in R

r spatial-statistics references

Dspanes

1,391

asked Jan 6, 2013 at 19:06

40 votes

4 answers

64k views

Loading OpenStreetMap data in QGIS?

qgis openstreetmap vector qgis-2

Laurent S

523

asked Oct 3, 2013 at 7:58

39 votes

9 answers

10k views

Machine Learning Algorithms for Land Cover Classification

remote-sensing land-cover land-classification machine-learning

Aaron♦

50.4k

asked Oct 15, 2012 at 19:14

36 votes

2 answers

17k views

Proper workflow for LAS to DEM conversion

arcgis-desktop dem lidar hydrology las

Martin

4,902

asked Nov 29, 2013 at 12:54

34 votes

2 answers

19k views

Styling road maps with QGIS?

qgis cartography visualisation references

Mykolas Simutis

778

asked Jun 1, 2011 at 13:38

34 votes

3 answers

9k views

Can QGIS preserve layers when exporting to PDF?

qgis pdf geospatial-pdf

RyanKDalton

22.5k

asked Mar 10, 2011 at 23:14

18 votes

3 answers

8k views

Visual Impact Assessment in QGIS or GRASS

qgis grass qgis-plugins viewshed

Simon

183

asked Apr 30, 2012 at 8:48

17 votes

1 answer

3k views

How to load Ordnance Survey OpenSpace in QGIS?

qgis ordnance-survey os-openspace-api

nhopton

6,809

asked Apr 20, 2012 at 8:45

13 votes

5 answers

31k views

Free radar (SAR) satellite data [closed]

data image satellite radar sentinel-1

SysRq308

381

asked Oct 13, 2014 at 14:16

11 votes

2 answers

7k views

Loading composer from template and generating atlas using PyQGIS

pyqgis qgis-plugins print-composer qgis-2

Matt

2,656

asked Nov 18, 2013 at 16:44

10 votes

3 answers

17k views

3D visualisation with open source GIS software [closed]

qgis open-source-gis 3d-gis

Nash

111

asked Dec 16, 2013 at 15:06

8 votes

1 answer

3k views

Comparing GRASS v.Overlay/QGIS Intersect Speed intersecting line and polygon? [closed]

qgis grass

GeoPy

583

asked Sep 16, 2013 at 16:39

8 votes

1 answer

5k views

Manipulating Azimuthal Equidistant Projections in QGIS

qgis coordinate-system

Dan Wolf

169

asked Aug 16, 2013 at 18:33

7 votes

2 answers

6k views

Strategies for serving large datasets over WFS

geoserver wfs

Feenster

101

asked Jun 11, 2013 at 15:28

6 votes

1 answer

2k views

Raster incorrectly reprojected to OSGB(27700)

qgis coordinate-system

TimG

61

asked Nov 6, 2012 at 20:59

6 votes

1 answer

3k views

Improve speed of PostGIS "nearest neighbor" query?

postgis postgis-2.0 nearest-neighbor

Jim

367

asked Apr 2, 2014 at 15:40

5 votes

2 answers

2k views

Quickly create contour polygons from cost points using OSS for web app

qgis web-mapping open-source-gis grass openstreetmap

joshdoe

899

asked Sep 2, 2011 at 19:07

4 votes

2 answers

3k views

Appending or merging consecutive line segments (contours) as one single line of same elevation value?

arcpy arcgis-10.1 modelbuilder arctoolbox

user18980

41

asked Jun 10, 2013 at 17:02

3 votes

1 answer

628 views

How to speed up raster/map algebra in PostGIS?

postgis raster map-algebra postgis-raster

tinlyx

10.3k

asked Dec 17, 2014 at 21:28

2 votes

1 answer

164 views

Making a Leaflet line feature more 'grabbable'

leaflet line

BritishSteel

6,269

asked Oct 30, 2015 at 13:44

2 votes

1 answer

5k views

Clustering of Spatial Data in R or Python [closed]

python r spatial-database clustering

SK Singh

31

asked May 31, 2016 at 13:03

2 votes

0 answers

655 views

Testing for spatial correlation using two point layers in QGIS? [closed]

qgis r spatial-statistics

iouraich

137

asked Nov 21, 2017 at 11:20

2 votes

2 answers

981 views

Combining two spatial tables in PostGIS

postgis union intersect postgis-2.3

RutgerH

2,985

asked Nov 12, 2018 at 17:05

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33 Bookmarks

Measuring accuracy of latitude and longitude?

Seeking examples of beautiful maps? [closed]

What free programs should every GIS user have installed?

Seeking Mobile GIS applications for Android Tablets? [duplicate]

Creating Vector Polygons with rendering performance like GISCloud?

Creating drive time polygons using Open Source tools?

Smoothing DEM using GRASS?

Seeking tutorials, books, papers, blogs, etc to handle spatial data in R

Loading OpenStreetMap data in QGIS?

Machine Learning Algorithms for Land Cover Classification

Proper workflow for LAS to DEM conversion

Styling road maps with QGIS?

Can QGIS preserve layers when exporting to PDF?

Visual Impact Assessment in QGIS or GRASS

How to load Ordnance Survey OpenSpace in QGIS?

Free radar (SAR) satellite data [closed]

Loading composer from template and generating atlas using PyQGIS

3D visualisation with open source GIS software [closed]

Comparing GRASS v.Overlay/QGIS Intersect Speed intersecting line and polygon? [closed]

Manipulating Azimuthal Equidistant Projections in QGIS

Strategies for serving large datasets over WFS

Raster incorrectly reprojected to OSGB(27700)

Improve speed of PostGIS "nearest neighbor" query?

Quickly create contour polygons from cost points using OSS for web app

Appending or merging consecutive line segments (contours) as one single line of same elevation value?

How to speed up raster/map algebra in PostGIS?

Making a Leaflet line feature more 'grabbable'

Clustering of Spatial Data in R or Python [closed]

Testing for spatial correlation using two point layers in QGIS? [closed]

Combining two spatial tables in PostGIS