I reprojected a few more charts
, and checked around a bit more.
The program has two modes, a graphical- and a command-line- mode.
The graphical mode is dead simple.Infile + outfile + tell that you want a merc. That's all that is needed. As a side effect some valuable info is written to the console (if you start the graphical program from the command-line). This info, is more ore less what is required for a little 8 line txt file for each chart, to be able to re-project, without intervention, from the command-line. Add your favorite scripting language, as a "glue", and updating all the reprojected charts
will become dead easy.
Nice little winter project
for someone that yearns for all Mercator charts for the Great Lakes