So, the mobile maps have come spluttering back into life. This is the very first pic of the OSM map data being rendered in MakingTracksGPS, and there is a long way to go yet, but this was a huge milestone.
I still have to tidy up the code before I commit it at this stage, and then I will be immediately looking to optimise things, ie. Project and paint the GridSquare once to a Drawable object, and stretch that to the GridSquare’s corners each time it is rendered.
Anyway, I’m happy with it so far. Looking forward to get this up and running properly!