1 |
greg |
2.1 |
#!/usr/bin/perl -w |
2 |
greg |
2.4 |
# RCSid $Id: falsecolor.pl,v 2.3 2011/03/23 19:33:29 greg Exp $ |
3 |
greg |
2.1 |
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4 |
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use strict; |
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use File::Temp qw/ tempdir /; |
6 |
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use POSIX qw/ floor /; |
7 |
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8 |
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my $mult = 179.0; # Multiplier. Default W/sr/m2 -> cd/m2 |
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my $label = 'cd/m2'; # Units shown in legend |
10 |
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my $scale = 1000; # Top of the scale |
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my $decades = 0; # Default is linear mapping |
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my $redv = 'def_red(v)'; # Mapping function for R,G,B |
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my $grnv = 'def_grn(v)'; |
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my $bluv = 'def_blu(v)'; |
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my $ndivs = 8; # Number of lines in legend |
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my $picture = '-'; |
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my $cpict = ''; |
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my $legwidth = 100; # Legend width and height |
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my $legheight = 200; |
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my $docont = ''; # Contours |
21 |
greg |
2.4 |
my $loff = 0; # Offset to align with values |
22 |
greg |
2.1 |
my $doextrem = 0; # Don't mark extrema |
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my $needfile = 0; |
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25 |
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while ($#ARGV >= 0) { |
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# Options with qualifiers |
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if ("$ARGV[0]" eq '-lw') { # Legend width |
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$legwidth = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-lh') { # Legend height |
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$legheight = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-m') { # Multiplier |
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$mult = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-s') { # Scale |
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$scale = $ARGV[1]; |
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shift @ARGV; |
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if ($scale =~ m/[aA].*/) { |
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$needfile = 1; |
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} |
42 |
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} elsif ("$ARGV[0]" eq '-l') { # Label |
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$label = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-log') { # Logarithmic mapping |
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$decades = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-r') { |
49 |
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$redv = $ARGV[1]; |
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shift @ARGV; |
51 |
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} elsif ("$ARGV[0]" eq '-g') { |
52 |
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$grnv = $ARGV[1]; |
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shift @ARGV; |
54 |
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} elsif ("$ARGV[0]" eq '-b') { |
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$bluv = $ARGV[1]; |
56 |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-pal') { |
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$redv = "$ARGV[1]_red(v)"; |
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$grnv = "$ARGV[1]_grn(v)"; |
60 |
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$bluv = "$ARGV[1]_blu(v)"; |
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shift @ARGV; |
62 |
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} elsif ("$ARGV[0]" eq '-i') { # Image for intensity mapping |
63 |
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$picture = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-p') { # Image for background |
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$cpict = $ARGV[1]; |
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shift @ARGV; |
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} elsif ("$ARGV[0]" eq '-ip' || "$ARGV[0]" eq '-pi') { |
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$picture = $ARGV[1]; |
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$cpict = $ARGV[1]; |
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shift @ARGV; |
72 |
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} elsif ("$ARGV[0]" eq '-n') { # Number of contour lines |
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$ndivs = $ARGV[1]; |
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shift @ARGV; |
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76 |
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# Switches |
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} elsif ("$ARGV[0]" eq '-cl') { # Contour lines |
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$docont = 'a'; |
79 |
greg |
2.4 |
$loff = 0.48; |
80 |
greg |
2.1 |
} elsif ("$ARGV[0]" eq '-cb') { # Contour bands |
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$docont = 'b'; |
82 |
greg |
2.4 |
$loff = 0.52; |
83 |
greg |
2.1 |
} elsif ("$ARGV[0]" eq '-e') { |
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$doextrem = 1; |
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$needfile = 1; |
86 |
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87 |
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# Oops! Illegal option |
88 |
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} else { |
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die("bad option \"$ARGV[0]\"\n"); |
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} |
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shift @ARGV; |
92 |
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} |
93 |
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# Temporary directory. Will be removed upon successful program exit. |
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my $td = tempdir( CLEANUP => 1 ); |
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97 |
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if ($needfile == 1 && $picture eq '-') { |
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greg |
2.3 |
# Pretend that $td/stdin.rad is the actual filename. |
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$picture = "$td/stdin.hdr"; |
100 |
greg |
2.1 |
open(FHpic, ">$picture") or |
101 |
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die("Unable to write to file $picture\n"); |
102 |
greg |
2.3 |
# Input is from STDIN: Capture to file. |
103 |
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while (<>) { |
104 |
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print FHpic; |
105 |
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} |
106 |
greg |
2.1 |
close(FHpic); |
107 |
greg |
2.3 |
|
108 |
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if ($cpict eq '-') { |
109 |
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$cpict = "$td/stdin.hdr"; |
110 |
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} |
111 |
greg |
2.1 |
} |
112 |
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113 |
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# Find a good scale for auto mode. |
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if ($scale =~ m/[aA].*/) { |
115 |
greg |
2.3 |
my @histo = split(/\s/, `phisto $picture| tail -2`); |
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# e.g. $ phisto tests/richmond.hdr| tail -2 |
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# 3.91267 14 |
118 |
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# 3.94282 6 |
119 |
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my $LogLmax = $histo[0]; |
120 |
greg |
2.1 |
$scale = $mult / 179 * 10**$LogLmax; |
121 |
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} |
122 |
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123 |
greg |
2.3 |
my $pc0 = "$td/pc0.cal"; |
124 |
greg |
2.1 |
open(FHpc0, ">$pc0"); |
125 |
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print FHpc0 <<EndOfPC0; |
126 |
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PI : 3.14159265358979323846 ; |
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scale : $scale ; |
128 |
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mult : $mult ; |
129 |
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ndivs : $ndivs ; |
130 |
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gamma : 2.2; |
131 |
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132 |
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or(a,b) : if(a,a,b); |
133 |
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EPS : 1e-7; |
134 |
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neq(a,b) : if(a-b-EPS,1,b-a-EPS); |
135 |
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btwn(a,x,b) : if(a-x,-1,b-x); |
136 |
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clip(x) : if(x-1,1,if(x,x,0)); |
137 |
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frac(x) : x - floor(x); |
138 |
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boundary(a,b) : neq(floor(ndivs*a+.5),floor(ndivs*b+.5)); |
139 |
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140 |
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spec_red(x) = 1.6*x - .6; |
141 |
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spec_grn(x) = if(x-.375, 1.6-1.6*x, 8/3*x); |
142 |
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spec_blu(x) = 1 - 8/3*x; |
143 |
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144 |
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pm3d_red(x) = sqrt(x) ^ gamma; |
145 |
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pm3d_grn(x) = x*x*x ^ gamma; |
146 |
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pm3d_blu(x) = clip(sin(2*PI*x)) ^ gamma; |
147 |
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148 |
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hot_red(x) = clip(3*x) ^ gamma; |
149 |
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hot_grn(x) = clip(3*x - 1) ^ gamma; |
150 |
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hot_blu(x) = clip(3*x - 2) ^ gamma; |
151 |
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152 |
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interp_arr2(i,x,f):(i+1-x)*f(i)+(x-i)*f(i+1); |
153 |
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interp_arr(x,f):if(x-1,if(f(0)-x,interp_arr2(floor(x),x,f),f(f(0))),f(1)); |
154 |
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155 |
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def_redp(i):select(i,0.18848,0.05468174, |
156 |
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0.00103547,8.311144e-08,7.449763e-06,0.0004390987,0.001367254, |
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0.003076,0.01376382,0.06170773,0.1739422,0.2881156,0.3299725, |
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0.3552663,0.372552,0.3921184,0.4363976,0.6102754,0.7757267, |
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0.9087369,1,1,0.9863); |
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def_red(x):interp_arr(x/0.0454545+1,def_redp); |
161 |
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162 |
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def_grnp(i):select(i,0.0009766,2.35501e-05, |
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0.0008966244,0.0264977,0.1256843,0.2865799,0.4247083,0.4739468, |
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0.4402732,0.3671876,0.2629843,0.1725325,0.1206819,0.07316644, |
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0.03761026,0.01612362,0.004773749,6.830967e-06,0.00803605, |
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0.1008085,0.3106831,0.6447838,0.9707); |
167 |
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def_grn(x):interp_arr(x/0.0454545+1,def_grnp); |
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169 |
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def_blup(i):select(i,0.2666,0.3638662,0.4770437, |
170 |
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0.5131397,0.5363797,0.5193677,0.4085123,0.1702815,0.05314236, |
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0.05194055,0.08564082,0.09881395,0.08324373,0.06072902, |
172 |
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0.0391076,0.02315354,0.01284458,0.005184709,0.001691774, |
173 |
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2.432735e-05,1.212949e-05,0.006659406,0.02539); |
174 |
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def_blu(x):interp_arr(x/0.0454545+1,def_blup); |
175 |
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176 |
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isconta = if(btwn(0,v,1),or(boundary(vleft,vright),boundary(vabove,vbelow)),-1); |
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iscontb = if(btwn(0,v,1),btwn(.4,frac(ndivs*v),.6),-1); |
178 |
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179 |
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ra = 0; |
180 |
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ga = 0; |
181 |
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ba = 0; |
182 |
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183 |
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in = 1; |
184 |
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185 |
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ro = if(in,clip($redv),ra); |
186 |
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go = if(in,clip($grnv),ga); |
187 |
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bo = if(in,clip($bluv),ba); |
188 |
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EndOfPC0 |
189 |
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190 |
greg |
2.3 |
my $pc1 = "$td/pc1.cal"; |
191 |
greg |
2.1 |
open(FHpc1, ">$pc1"); |
192 |
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print FHpc1 <<EndOfPC1; |
193 |
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norm : mult/scale/le(1); |
194 |
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195 |
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v = map(li(1)*norm); |
196 |
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197 |
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vleft = map(li(1,-1,0)*norm); |
198 |
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vright = map(li(1,1,0)*norm); |
199 |
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vabove = map(li(1,0,1)*norm); |
200 |
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vbelow = map(li(1,0,-1)*norm); |
201 |
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202 |
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map(x) = x; |
203 |
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204 |
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ra = ri(nfiles); |
205 |
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ga = gi(nfiles); |
206 |
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ba = bi(nfiles); |
207 |
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EndOfPC1 |
208 |
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209 |
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my $pc0args = "-f $pc0"; |
210 |
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my $pc1args = "-f $pc1"; |
211 |
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212 |
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# Contour lines or bands |
213 |
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if ($docont ne '') { |
214 |
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$pc0args .= " -e 'in=iscont$docont'"; |
215 |
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} |
216 |
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217 |
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if ($cpict eq '') { |
218 |
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$pc1args .= " -e 'ra=0;ga=0;ba=0'"; |
219 |
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} elsif ($cpict eq $picture) { |
220 |
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$cpict = ''; |
221 |
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} |
222 |
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223 |
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# Logarithmic mapping |
224 |
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if ($decades > 0) { |
225 |
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$pc1args .= " -e 'map(x)=if(x-10^-$decades,log10(x)/$decades+1,0)'"; |
226 |
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} |
227 |
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228 |
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# Colours in the legend |
229 |
greg |
2.3 |
my $scolpic = "$td/scol.hdr"; |
230 |
greg |
2.1 |
# Labels in the legend |
231 |
greg |
2.3 |
my $slabpic = "$td/slab.hdr"; |
232 |
greg |
2.1 |
my $cmd; |
233 |
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234 |
greg |
2.3 |
if (($legwidth > 20) && ($legheight > 40)) { |
235 |
greg |
2.1 |
# Legend: Create the text labels |
236 |
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my $sheight = floor($legheight / $ndivs + 0.5); |
237 |
greg |
2.4 |
$legheight = $sheight * $ndivs; |
238 |
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$loff = floor($loff * $sheight + 0.5); |
239 |
greg |
2.1 |
my $text = "$label"; |
240 |
greg |
2.3 |
for (my $i=0; $i<$ndivs; $i++) { |
241 |
greg |
2.1 |
my $imap = ($ndivs - 0.5 - $i) / $ndivs; |
242 |
greg |
2.3 |
my $value = $scale; |
243 |
greg |
2.1 |
if ($decades > 0) { |
244 |
greg |
2.3 |
$value *= 10**(($imap - 1) * $decades); |
245 |
greg |
2.1 |
} else { |
246 |
greg |
2.3 |
$value *= $imap; |
247 |
greg |
2.1 |
} |
248 |
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# Have no more than 3 decimal places |
249 |
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$value =~ s/(\.[0-9]{3})[0-9]*/$1/; |
250 |
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$text .= "\n$value"; |
251 |
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} |
252 |
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$cmd = "echo '$text' | psign -s -.15 -cf 1 1 1 -cb 0 0 0"; |
253 |
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$cmd .= " -h $sheight > $slabpic"; |
254 |
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system $cmd; |
255 |
greg |
2.4 |
|
256 |
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# Legend: Create the background colours |
257 |
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$cmd = "pcomb $pc0args -e 'v=(y+.5)/yres;vleft=v;vright=v'"; |
258 |
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$cmd .= " -e 'vbelow=(y-.5)/yres;vabove=(y+1.5)/yres'"; |
259 |
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$cmd .= " -x $legwidth -y $legheight > $scolpic"; |
260 |
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system $cmd; |
261 |
greg |
2.1 |
} else { |
262 |
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# Legend is too small to be legible. Don't bother doing one. |
263 |
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$legwidth = 0; |
264 |
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$legheight = 0; |
265 |
greg |
2.4 |
$loff = 0; |
266 |
greg |
2.3 |
# Create dummy colour scale and legend labels so we don't |
267 |
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# need to change the final command line. |
268 |
greg |
2.1 |
open(FHscolpic, ">$scolpic"); |
269 |
greg |
2.2 |
print FHscolpic "\n-Y 1 +X 1\naaa\n"; |
270 |
greg |
2.1 |
close(FHscolpic); |
271 |
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open(FHslabpic, ">$slabpic"); |
272 |
greg |
2.2 |
print FHslabpic "\n-Y 1 +X 1\naaa\n"; |
273 |
greg |
2.1 |
close(FHslabpic); |
274 |
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} |
275 |
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276 |
greg |
2.3 |
# Legend: Invert the text labels (for dropshadow) |
277 |
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my $slabinvpic = "$td/slabinv.hdr"; |
278 |
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$cmd = "pcomb -e 'lo=1-gi(1)' $slabpic > $slabinvpic"; |
279 |
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system $cmd; |
280 |
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281 |
greg |
2.1 |
my $loff1 = $loff - 1; |
282 |
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# Command line without extrema |
283 |
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$cmd = "pcomb $pc0args $pc1args $picture $cpict"; |
284 |
greg |
2.3 |
$cmd .= "| pcompos $scolpic 0 0 +t .1 $slabinvpic 2 $loff1"; |
285 |
greg |
2.1 |
$cmd .= " -t .5 $slabpic 0 $loff - $legwidth 0"; |
286 |
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287 |
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if ($doextrem == 1) { |
288 |
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# Get min/max image luminance |
289 |
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my $cmd1 = 'pextrem -o ' . $picture; |
290 |
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my $retval = `$cmd1`; |
291 |
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# e.g. |
292 |
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# x y r g b |
293 |
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# 193 207 3.070068e-02 3.118896e-02 1.995850e-02 |
294 |
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# 211 202 1.292969e+00 1.308594e+00 1.300781e+00 |
295 |
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296 |
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my @extrema = split(/\s/, $retval); |
297 |
greg |
2.3 |
my ($lxmin, $ymin, $rmin, $gmin, $bmin, $lxmax, $ymax, $rmax, $gmax, $bmax) = @extrema; |
298 |
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$lxmin += $legwidth; |
299 |
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$lxmax += $legwidth; |
300 |
greg |
2.1 |
|
301 |
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# Weighted average of R,G,B |
302 |
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my $minpos = "$lxmin $ymin"; |
303 |
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my $minval = ($rmin * .27 + $gmin * .67 + $bmin * .06) * $mult; |
304 |
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$minval =~ s/(\.[0-9]{3})[0-9]*/$1/; |
305 |
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my $maxpos = "$lxmax $ymax"; |
306 |
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my $maxval = ($rmax * .27 + $gmax * .67 + $bmax * .06) * $mult; |
307 |
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$maxval =~ s/(\.[0-9]{3})[0-9]*/$1/; |
308 |
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309 |
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# Create the labels for min/max intensity |
310 |
greg |
2.3 |
my $minvpic = "$td/minv.hdr"; |
311 |
greg |
2.1 |
$cmd1 = "psign -s -.15 -a 2 -h 16 $minval > $minvpic"; |
312 |
|
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system $cmd1; |
313 |
greg |
2.3 |
my $maxvpic = "$td/maxv.hdr"; |
314 |
greg |
2.1 |
$cmd1 = "psign -s -.15 -a 2 -h 16 $maxval > $maxvpic"; |
315 |
|
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system $cmd1; |
316 |
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317 |
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# Add extrema labels to command line |
318 |
|
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$cmd .= " $minvpic $minpos $maxvpic $maxpos"; |
319 |
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} |
320 |
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321 |
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# Process image and combine with legend |
322 |
|
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system "$cmd"; |
323 |
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324 |
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#EOF |