Hi there,
Just had a long chat with myself on grass-user in which I eventually figured out that r.water.outlet would need an extra line added to work with lat/lon grids that involved the 180 meridian wraparound. The modification to main.c is (with surrounding lines for context) is:
G_usage();
exit(EXIT_FAILURE);
}
E = G_adjust_east_longitude(E,window.west); // ← NEW LINE; for using lat/lon data that straddle the 180 meridian
if (E < window.west || E > window.east || N < window.south ||
N > window.north) {
Along with this, should the HTML help be updated to not just say “northing/easting” for pour point locations, but also say “lat/lon”?
Andy