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#!/usr/bin/env bash
#
# Demonstrate vector details
gmt begin GMT_vector
gmt set GMT_THEME cookbook
# Cartesian straight arrows
gmt plot -R0/5/0/5 -JX6i -Sv1i+s+e+a50+p0.25p,dashed -W5p <<- EOF
0.5 0.5 4.5 1.5
EOF
gmt plot -Sv1i+s+e+a50+p2p,orange+h0.5 -W5p -Glightblue <<- EOF
0.5 0.5 4.5 1.5
EOF
gmt plot -W0.25p,dashed -L <<- EOF
> dxdy
0.5 1.5
0.5 0.5
4.5 0.5
4.5 1.5
>
0.5 0.5
4.5 1.5
EOF
gmt plot -Sc0.2c -Gwhite -Wfaint <<- EOF
0.5 0.5
4.5 1.5
EOF
a=$(gmt math -Q 1 4 DIV ATAN R2D =)
a1=$(gmt math -Q 180 25 SUB $a ADD =)
a2=$(gmt math -Q 180 25 ADD $a ADD =)
gmt plot -Sm0.2i -Gblack -W0.5p <<- EOF
0.5 0.5 1.1i 0 $a
0.5 0.5 0.75i $a 90
4.5 1.5 0.5i $a1 $a2
EOF
gmt text -F+f18p,Times-Italic+a+j -Dj6p -N <<- EOF
4.5 0.5 0 TC @~D@~x
0.5 1.5 0 RM @~D@~y
4.5 1.5 0 LB (x@-e@-, y@-e@-)
0.5 0.5 0 RT (x@-b@-, y@-b@-)
1.3 0.6 0 CM d
0.75 0.9 0 CM @~a@~
4.20 1.43 0 CM @~q@~
2.5 1.0 $a CB L
EOF
gmt text -F+f18p,Helvetica-Bold -D0/-8p -N <<- EOF
0.35 0.7 b
4.6 1.5 e
EOF
gmt end show
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