Landscape orientation with -Jx10c/-10c option problem.
I have a problem with page orientation, when I do:
gmt psbasemap -Jx3c/-3c -R0/8/0/4 -B1/1 --PS_PAGE_ORIENTATION=landscape > map.ps
the resulting ps file is actually upside down but not the proper way, see file.
Both your posted file and the one I make from your command look fine and show up correctly. PostScript previewer issue on your end? How are you viewing these?