#
# Demo the "with arrows" plot style
# This style differs from "with vectors" as follows:
# plot FOO using (x):(y):(deltax):(deltay) with vectors
# plot BAZ using (x):(y):(length):(angle) with arrows
#
set sample 11
set isosample 11
set urange [10:360]; set xrange [0:360]
set vrange [1: 10]; set yrange [0: 10]
unset key
set border 3
set tics nomirror rangelimit
set title "plot '++' using x:y:len:angle with arrows\n".\
" len = sqrt(x+y) angle = x + 3*y"
set style arrow 1 noborder
plot '++' using 1:2:(sqrt($1+$2)):($1 + $2*3) with arrows as 1
pause -1 "Hit <cr> to continue"
set style arrow 2 noborder lw 2 lc palette z
set cbrange [0:12]
set palette cubehelix
f(x,y) = sqrt((x-150)*(x-150)/400. + (y-6)*(y-6))
set title "plot ... using x:y:len:angle:as:color with arrows arrowstyle variable"
plot '++' using 1:2:(sqrt($1+$2)):($1 + $2*3):(2):(f($1,$2)) with arrows as variable
pause -1 "Hit <cr> to continue"
reset
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