user avatar
user avatar
user avatar
HeikkiVesanto
  • Member for 9 years, 4 months
  • Last seen this week
569 votes
7 answers
495k views

Measuring accuracy of latitude and longitude?

  • 5,817
184 votes
47 answers
117k views

Seeking examples of beautiful maps? [closed]

  • 4,176
142 votes
42 answers
20k views

What free programs should every GIS user have installed?

  • 10.6k
64 votes
5 answers
101k views

Seeking Mobile GIS applications for Android Tablets? [duplicate]

60 votes
7 answers
13k views

Creating Vector Polygons with rendering performance like GISCloud?

55 votes
10 answers
46k views

Creating drive time polygons using Open Source tools?

  • 22.5k
48 votes
5 answers
22k views

Smoothing DEM using GRASS?

  • 9,753
43 votes
3 answers
33k views

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

  • 1,391
40 votes
4 answers
64k views

Loading OpenStreetMap data in QGIS?

  • 523
39 votes
9 answers
10k views

Machine Learning Algorithms for Land Cover Classification

  • 50.4k
36 votes
2 answers
17k views

Proper workflow for LAS to DEM conversion

  • 4,902
34 votes
2 answers
19k views

Styling road maps with QGIS?

34 votes
3 answers
9k views

Can QGIS preserve layers when exporting to PDF?

  • 22.5k
18 votes
3 answers
8k views

Visual Impact Assessment in QGIS or GRASS

  • 183
17 votes
1 answer
3k views

How to load Ordnance Survey OpenSpace in QGIS?

  • 6,809
13 votes
5 answers
31k views

Free radar (SAR) satellite data [closed]

  • 381
11 votes
2 answers
7k views

Loading composer from template and generating atlas using PyQGIS

  • 2,656
10 votes
3 answers
17k views

3D visualisation with open source GIS software [closed]

  • 111
8 votes
1 answer
3k views

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

  • 583
8 votes
1 answer
5k views

Manipulating Azimuthal Equidistant Projections in QGIS

  • 169
7 votes
2 answers
6k views

Strategies for serving large datasets over WFS

  • 101
6 votes
1 answer
2k views

Raster incorrectly reprojected to OSGB(27700)

  • 61
6 votes
1 answer
3k views

Improve speed of PostGIS "nearest neighbor" query?

  • 367
5 votes
2 answers
2k views

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

  • 899
4 votes
2 answers
3k views

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

3 votes
1 answer
628 views

How to speed up raster/map algebra in PostGIS?

  • 10.3k
2 votes
1 answer
164 views

Making a Leaflet line feature more 'grabbable'

  • 6,269
2 votes
1 answer
5k views

Clustering of Spatial Data in R or Python [closed]

2 votes
0 answers
655 views

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

  • 137
2 votes
2 answers
981 views

Combining two spatial tables in PostGIS

  • 2,985