13 Free GIS Software Options: Map the World in Open Source
There’s a bucket load of free GIS software packages available for you to map the world. Manage, visualize and edit GIS data with open source GIS software.
Author: GISGeography
We help you learn Geographic Information Systems and remote sensing
gvSIG Software Review: Desktop, 3D and Mobile GIS
Map all day. Geoprocess all night. All with open source gvSIG software. gvSIG emerged in 2004. It’s been fine-tuned for close to two decades.
GIS Programming Tutorials: Learn How to Code
GIS programming often involves a healthy dose of Python, JavaScript, SQL, VB.NET, C++ and HTML. Learn to code and it’s a feather in your cap to a GIS career
What Is Flow Direction in GIS?
Flow direction calculates the direction water will flow in its eight adjacent cells using slope from neighboring cells (in a raster grid cell)
DEM, DSM & DTM: Elevation Models in GIS
We explore the differences between DEM (bare earth), DSM (natural and built environment) and DTM (vector contours and regularly-spaced points).
Geocoding: Longitude and Latitude by Address
Geocoding takes an address, then translates it to a location on a map. It changes an address to lat long coordinates (latitude and longitude).
5 Free Global DEM Data Sources – Digital Elevation Models
Want to elevate your chances of finding a digital elevation model? Sure you do. You should dive into our list of free global DEM data sources.
Cylindrical Projections in Cartography & Maps
When you place a cylinder around a globe and unravel it, you get the cylindrical projection like the Mercator, Transverse Mercator and Miller projections.
Bentley Map by Bentley Systems (Review)
In Bentley Map, we step into a world of CAD and GIS all meshed into one. It combines the power of CAD with the strengths of a traditional GIS software.
The Geoid – Hypothetical Mean Sea Level
The geoid measures mean sea level and gravity. The GRACE and GOCE satellites are providing the most accurate measurements of the geoid to this date.