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# ex_spectrum_bbcol.ppl
#
# The code in this file is part of Pyxplot
# <http://www.pyxplot.org.uk>
#
# Copyright (C) 2006-2012 Dominic Ford <coders@pyxplot.org.uk>
# 2008-2012 Ross Church
#
# $Id: ex_spectrum_bbcol.ppl 1275 2012-07-23 07:35:55Z dcf21 $
#
# Pyxplot 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 2 of the License, or (at your option) any later
# version.
#
# You should have received a copy of the GNU General Public License along with
# Pyxplot; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301, USA
# ----------------------------------------------------------------------------
# This script produces a figure for the Pyxplot Users' Guide
# Call common initialisation script
reset
title = "ex_spectrum_bbcol"
load "examples/fig_init.ppl"
# BEGIN
set log x
set linear y
set nokey
set nocolkey
set size ratio 0.2
set noytics
set xlabel 'Temperature'
set noylabel
f(lambda) = phy.Bv(phy.c/lambda,c1) / (c1 / unit(6000*K))**4
set colmap colors.spectrum(f,3e3)
set sample grid 200x2
set c1range norenorm
set title 'Colors of blackbodies of different temperatures'
plot [unit(2000*K):unit(20000*K)] x with colormap
# END
# Call common cleanup script
load "examples/fig_end.ppl"
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