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.
Articles
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.
Raster Resampling for Discrete and Continuous Data
For raster resampling in GIS, you can use bilinear and cubic convolution for continuous data as well as nearest neighbor and majority for discrete data.