shapefile

GIS Data

Shapefiles store vector information such as points (represented by well locations in this map), lines (river), and polygons (lake).

What is a Shapefile?

December 30, 2015By Caitlin DempseyGIS Data

The shapefile format is now a common format for storing GIS data. Shapefiles store non-topological vector data along with related attribute data.

ArcGIS Explorer from Esri.

Shapefile Viewers

May 14, 2013By Caitlin DempseyGIS Software

Listed here are shapefile viewers for viewing GIS vector data in shapefile format by using desktop software or an online option.

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.