user avatar
user avatar
user avatar
Dan S.
  • Member for 12 years
  • Last seen more than 11 years ago
82 votes

Difference between WGS84 and EPSG:4326

23 votes

Generating points that lie inside polygon using QGIS

18 votes
Accepted

Control the colors of a shapefile

17 votes

Lat/Lon/Alt to spherical or cartesian coordinates

16 votes

Intersection algorithm that correctly handles 180° meridian and poles?

12 votes
Accepted

How to georeference a web mercator tile correctly using gdal?

11 votes
Accepted

Discontinuous or Interrupted map projections?

10 votes

Visualizing speed of movement on static (= printable) map?

8 votes
Accepted

Using Geodesic Measurements for Circle Radii?

8 votes
Accepted

GDAL and ArcObjects in The Same Project - A Recipe For Disaster?

7 votes
Accepted

Find the best path along raster

7 votes
Accepted

Exploring ArcObjects through C# or VB from Python background

6 votes

Freelancers, how do you handle deliveries to remote clients?

6 votes

Custom Coordinate System

5 votes
Accepted

Where can I find GIS data to test GIS coordinate operations?

5 votes

Calculating visible sky percentage?

5 votes

Convert x, y position in georeferenced image (with world file) to longitude, latitude?

5 votes

Shell script commands

5 votes

The GIS of War - Tracking Conflicts and Their Effects

4 votes
Accepted

Interpolate points between coordinates for smooth animation in google maps or openmap

4 votes

Algorithms for matching segments

4 votes

How to calculate orientation of line segments using open source GIS?

4 votes

Quick way to determine if facing a given lat/lon pair with a heading

4 votes

What practices are available for modelling land suitability?

3 votes

Extract boundary from detailed layers in ArcGIS Desktop or QGIS?

3 votes

How do I cluster XY point data? (ArcGIS 9.3)

3 votes

How do I display geojson polygons on a map?

3 votes
Accepted

Grass GUI integration

3 votes
Accepted

How to integrate Proj4 into an iOS / iPhone project?

3 votes

How to create a circle in arcpy