Calculating the bearing of a line
Sometimes, you need to know the compass bearing of a line to create specialized symbology or to use as input in a spatial calculation. Even though its name only mentions distance and area, the versatile QgsDistanceArea object includes this function as well. In this recipe, we'll calculate the bearing of the end points of a line. However, this recipe will work with any two points.
Getting ready
We'll use the line shapefile used in Measuring the distance between two points recipe. You can download the shapefile as a .zip file from https://github.com/GeospatialPython/Learn/raw/master/paths.zip.
Unzip the shapefile into a directory named qgis_data/shapes within your root or home directory.
How to do it...
The steps to ...
Get QGIS Python Programming Cookbook - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
