Thank you @pwessel! gmt convert and -Sv+s -W+cl did the trick. Great idea converting the segments to vectors.
track_sample_data.txt (19.6 KB)
#!/usr/bin/env bash
gmt makecpt -T0/20000 -Cseis > track.cpt
gmt convert track_sample_data.txt -i7,6,3 -Fv -o0,1,3,4,2 > trackv.txt
gmt begin track_sample
gmt plot \
-R007:24:13.64/49:01:59.90/009:54:13.64/51:01:59.90r \
-JL008:34:13.64/50:01:59.90/49:31:59.90/50:31:59.90/20c \
trackv.txt -Sv1p+s -W2p+cl -Ctrack.cpt -i0,1,4,2,3
gmt end
Just some eye-candy with more tracks:
The idea @PlanetGus brought up with just plotting symbols and colouring them via z-value is quite clever as well. While not ideal in this case it is a useful trick to know. Thank you for that!