Trend and plunge of lineation

# Symbols made for GMT by Jose A. Alvarez-Gomez
#
# Geological symbol: lineation
#
# The symbol reads the trend and plunge in the 3rd and 4th columns in psxy
#
N: 2 ao
if $1 [> 0:90 then 0.2 -0.2 0.3 $2 l+fHelvetica-Oblique+jCM -W-
if $1 [> 90:180 then -0.2 -0.2 0.3 $2 l+fHelvetica-Oblique+jCM -W-
if $1 [> 180:270 then -0.2 0.2 0.3 $2 l+fHelvetica-Oblique+jCM -W-
if $1 [> 270:360 then 0.2 0.2 0.3 $2 l+fHelvetica-Oblique+jCM -W-
$1 R
0 -0.3 M
0 0.3 D
0 0.3 0.25 t