Summary

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

This file is licensed under the Creative Commons Attribution 3.0 Unported license.

You are free:

• to share – to copy, distribute and transmit the work
• to remix – to adapt the work

Under the following conditions:

• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue

Gnuplot source code

# EU lamp energy label, based on directive 98/11/EC
# http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:31998L0011:EN:NOT
# this script was written for Gnuplot version 4.4, by Han-Kwang

reset

# labels for internationalization
NO_BALLAST = 'No integrated ballast'
XLABELTEXT = 'Luminous flux (lm)'
YLABELTEXT = 'Electrical power (W)'


# Power in watt for class A, given luminous flux Q

# PA_f: fluorescence lamps without ballast
PA_f(Q) = 0.15*sqrt(Q) + 0.0097*Q

# PA_o: all other fluorescent lamps
PA_o(Q) = 0.24*sqrt(Q) + 0.0103*Q

# Reference power for EEI
PR(Q) = (Q > 34) ? 0.88*sqrt(Q) + 0.049*Q : 0.2*Q

# upper limits for classes B-F
PB(Q) = PR(Q)*0.60
PC(Q) = PR(Q)*0.80
PD(Q) = PR(Q)*0.95
PE(Q) = PR(Q)*1.10
PF(Q) = PR(Q)*1.30

set xlab XLABELTEXT
set ylab YLABELTEXT

set xra [0:3000]
set yra [0:300]
set mxtics 5
set mytics 5
unset key

lx = 1600
set lab 1 'A' at lx,(PA_o(lx))/2
set lab 2 'B' at lx,(PA_o(lx)+PB(lx))/2
set lab 3 'C' at lx,(PB(lx)+PC(lx))/2
set lab 4 'D' at lx,(PC(lx)+PD(lx))/2
set lab 5 'E' at lx,(PD(lx)+PE(lx))/2
set lab 6 'F' at lx,(PE(lx)+PF(lx))/2
set lab 7 'G' at lx,1.1*PF(lx)

set lab 10 NO_BALLAST at 2900,10 right
set arrow 1 from 2570,15 to 2660,PA_f(2660)-1 lw 1.3 size screen 0.02,20


set sty line 11 lt 1 lw 1.3 lc rgbcolor '#33a357'
set sty line 1 lt 1 lw 3 lc rgbcolor '#33a357'
set sty line 2 lt 1 lw 3 lc rgbcolor '#79b752'
set sty line 3 lt 1 lw 3 lc rgbcolor '#c3d545'
set sty line 4 lt 1 lw 3 lc rgbcolor '#efe124' # modified for better contrast
set sty line 5 lt 1 lw 3 lc rgbcolor '#edb731'
set sty line 6 lt 1 lw 3 lc rgbcolor '#d66f2c'
set sty line 7 lt 1 lw 3 lc rgbcolor '#cc232a'

set sty data lines
set grid

set term svg size 600,400
set outp 'EU_lamp_energy_classes.svg'

set multiplot
plot \
    PA_f(x) ls 11, \
    PA_o(x) ls 1, \
    PB(x)   ls 2, \
    PC(x)   ls 3, \
    PD(x)   ls 4, \
    PE(x)   ls 5, \
    PF(x)   ls 6

set size 0.4,0.53
unset xlab
unset ylab
unset label
set origin 0.12,0.44
set xra [0:400]
set yra [0:40]
set xtics 100
unset ytics
set format y ''
set ytics 10
set y2tics 10
set grid xtics y2tics
set object 1 rect from graph -0.05, graph -0.15 to graph 1.2, graph 1.05 behind
set object 1 rect fc rgb "white" fillstyle solid 1.0 border rgb "white"

replot

unset multi

set outp