path.gpl

set term pngcairo enhanced
set grid
set xlabel "Position in mm"
set ylabel "Stress in MPa"
set out "Refs/stress.png"
plot "graph_0.out" using ($2-25):3 title "{/Symbol s}_z(M_x)" w lp,\
     "graph_1.out" using ($2-50):3 title "{/Symbol s}_z(M_y)" w lp,\
     "graph_2.out" using ($2-50):3 title "{/Symbol t}_{max}(M_z)" w lp
set out #