Hello all,
Can someone clarify the correct application of padding using grdgravmag3d as I keep getting an error saying incompatible new WESN. The data are a geographic grid and the padding is set as 1 degree (just testing!):
grdgravmag3d hm_topo_cut.grd -Ghm_topo_3dgrav.grd -I1m -Q1/1/1/1 -V -C2670 -fg -R68/86/28/44
grdgravmag3d [INFORMATION]: netCDF grid hm_topo_cut.grd has no default CPT.
grdgravmag3d [INFORMATION]: Round-off patrol changed grid limit for xmin from 67.99999999999996 to 67.99999999999996
grdgravmag3d [INFORMATION]: Round-off patrol changed grid limit for xmax from 85.99999999999994 to 85.99999999999994
grdgravmag3d [ERROR]: New WESN incompatible with old.
Not sure why it has to alter the xmin/xmax since grdinfo shows the true extent as -R68/86/28/44 and increment 1 minute.
Grdgravmag3d will work without the -Q option (and region) but there are edge effects.
GMT version 6.5.0
Thanks
Lester