Hi. I gridded some data using:
gmt grdimage counts.xyz -R67.5/72.5/34/40 -t60
I want to draw an outline a frame outside the tile. I tried -T at the end
gmt grdimage counts.xyz -R67.5/72.5/34/40 -t60 -T+o0.5p
GMT ERROR: grdimage [ERROR]: Unrecognized option -T
Someone know how to draw a frame outside the tile in GMT?
Thanks in advance