Book Image

QGIS Python Programming Cookbook

Book Image

QGIS Python Programming Cookbook

Overview of this book

Table of Contents (16 chapters)
QGIS Python Programming Cookbook
About the Author
About the Reviewers

Adding a grid to the map

An annotated reference grid is useful for map products used to locate features. This recipe teaches you how to add both reference lines on a map and annotations for the lines around the edges of the map.

Getting ready

You will need a shapefile for this map from, and you need to extract it to your qgis_data directory, to a subdirectory named ms.

As with the previous recipes in this chapter, we will use the MapComposer library from to simplify the creation of the map composition.

Place the file in the .qgis2/python directory within your home directory.

How to do it...

In this recipe, the general steps are to create the map composition, establish the overall grid parameters, define the grid line placement, and then style the grid and annotations. To do this, we need to perform the following steps:

  1. First, we need to import all the GUI libraries and the MapComposer...