vector GIS data

GIS Data

Query result of GTS spatial data in mongoDB. From: Zhang, Song, & Liu, 2014.

GIS File Formats

December 1, 2017By Caitlin DempseyGIS Data

Listed here are some of the more common file formats along with associated file extension for GIS file types.

Elements of a Map

Map elements such as the map frame, legend, and north arrow are parts of what create a map.

Learn GIS for Free

There are a few online options to learn GIS for free. Take advantage of resources that provide you access to free courses from some of the world’s best universities and institutions.

GIS is a technological field that incorporates geographical features with tabular data in order to map, analyze, and assess real-world problems. The key word to this technology is Geography – this means that some portion of the data is spatial.

Open Source GIS and Freeware GIS Applications

An open source application by definition is software that you can freely access and modify the source code for. Open source projects typically are worked on by a community of volunteer programmers. Open source GIS programs are based on different base programming languages. Three main groups of open source GIS […]

Calculating Polygon Area in ArcMap

Here are the steps for calculating the area of a polygon using ArcGIS.