Network Analysis: Finding shortest path in QGIS
From CUOSGwiki
Introduction
Calculating the shortest distance between two points is a commonly cited use for GIS. QGIS ships with this tool, but it’s not visible by default. In this tutorial we will show you what you need to get started.
Data
Acquired QGIS (version 2.6)
You need to install Quantum GIS version 2.6 in order to get activate the road graph plugin.