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#!/bin/bash
# Copyright © 2014 Wolfgang Brehm
# Copyright © 2014 Deutsches Elektronen-Synchrotron DESY,
# a research centre of the Helmholtz Association.
#
# Authors:
# 2013-2014 Wolfgang Brehm <wolfgang.brehm@gmail.com>
# 2014 Thomas White <taw@physics.org>
#
# This file is part of CrystFEL.
#
# CrystFEL is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# CrystFEL is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with CrystFEL. If not, see <http://www.gnu.org/licenses/>.
#
FILE=fg.dat
NPATT=4000
NITER=4
CMIN=-0.1
CMAX=0.3
gnuplot -p << EOF
set terminal pngcairo size 1600,1000 enhanced font 'Helvetica,20' linewidth 2
set output "correlation.png"
set xlabel "Number of crystals"
set ylabel "Correlation"
rnd(x) = x - floor(x) < 0.5 ? floor(x) : ceil(x)
round(x1,x2)=rnd(10**x2*x1)/10.0**x2
set xzeroaxis lc rgb "black" lt 1
set key top left
set xrange [0:${NITER}*${NPATT}]
set yrange [${CMIN}:${CMAX}]
set ytics nomirror
set xtics nomirror
set x2tics nomirror
set x2range [0:${NITER}]
set x2label "Number of passes over all crystals"
set arrow from ${NPATT},${CMIN} to ${NPATT},${CMAX} nohead lc rgb "black"
plot\
1 lc rgb "black" lt 1 notitle,\
"${FILE}" u 0:1 ps 0.2 pt 7 lc rgb "orange" notitle,\
"${FILE}" u 0:2 ps 0.2 pt 7 lc rgb "#0088FF" notitle,\
"${FILE}" u 0:(rand(0)>0.5?\$1:1/0) ps 0.2 pt 7 lc rgb "orange" notitle ,\
"${FILE}" u (round(\$0, -3)):(\$1>\$2?\$1:\$2) lw 3 lc rgb "black" smooth unique notitle,\
"${FILE}" u (round(\$0, -3)):(\$1<\$2?\$1:\$2) lw 3 lc rgb "black" smooth unique notitle,\
"${FILE}" u (round(\$0, -3)):1 lw 3 lc rgb "red" smooth unique notitle,\
"${FILE}" u (round(\$0, -3)):2 lw 3 lc rgb "blue" smooth unique notitle
EOF
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