Is there a QGIS plugin available or a processing model to calculate and populate fields that can be used to label the adjacent pages in a map book?
Although there are tools to create vector grids, I cannot find one to calculate the adjacent polygons. i.e. which adjoining polygon is N,S,E and W of the existing polygon, or even better in all 8 directions surrounding a regular polygon.
This is how it works in ArcGIS;
I am looking to modify a python script by Ujaval Gandhi on http://www.qgistutorials.com/en/docs/find_neighbor_polygons.html and will post further if I have anything to add. (It currently outputs the surrounding polygons in a single field.)