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.
You will need a shapefile for this map from https://github.com/GeospatialPython/Learn/raw/master/Mississippi.zip, and you need to extract it to your qgis_data
directory in a subdirectory named ms
.
As with the previous recipes in this chapter, we will use the MapComposer
library from https://github.com/GeospatialPython/Learn/raw/master/MapComposer.py, to simplify the creation of the map composition.
Place the file in the .qgis2/python
directory within your home directory.