| 1 |
#!/usr/bin/perl -w |
| 2 |
# RCSid $Id: falsecolor.pl,v 2.1 2010/10/05 00:59:39 greg Exp $ |
| 3 |
|
| 4 |
use strict; |
| 5 |
use File::Temp qw/ tempdir /; |
| 6 |
use POSIX qw/ floor /; |
| 7 |
|
| 8 |
my $mult = 179.0; # Multiplier. Default W/sr/m2 -> cd/m2 |
| 9 |
my $label = 'cd/m2'; # Units shown in legend |
| 10 |
my $scale = 1000; # Top of the scale |
| 11 |
my $decades = 0; # Default is linear mapping |
| 12 |
my $redv = 'def_red(v)'; # Mapping function for R,G,B |
| 13 |
my $grnv = 'def_grn(v)'; |
| 14 |
my $bluv = 'def_blu(v)'; |
| 15 |
my $ndivs = 8; # Number of lines in legend |
| 16 |
my $picture = '-'; |
| 17 |
my $cpict = ''; |
| 18 |
my $legwidth = 100; # Legend width and height |
| 19 |
my $legheight = 200; |
| 20 |
my $docont = ''; # Contours |
| 21 |
my $loff = 0; # Offset for drop-shadow |
| 22 |
my $doextrem = 0; # Don't mark extrema |
| 23 |
my $needfile = 0; |
| 24 |
|
| 25 |
while ($#ARGV >= 0) { |
| 26 |
# Options with qualifiers |
| 27 |
if ("$ARGV[0]" eq '-lw') { # Legend width |
| 28 |
$legwidth = $ARGV[1]; |
| 29 |
shift @ARGV; |
| 30 |
} elsif ("$ARGV[0]" eq '-lh') { # Legend height |
| 31 |
$legheight = $ARGV[1]; |
| 32 |
shift @ARGV; |
| 33 |
} elsif ("$ARGV[0]" eq '-m') { # Multiplier |
| 34 |
$mult = $ARGV[1]; |
| 35 |
shift @ARGV; |
| 36 |
} elsif ("$ARGV[0]" eq '-s') { # Scale |
| 37 |
$scale = $ARGV[1]; |
| 38 |
shift @ARGV; |
| 39 |
if ($scale =~ m/[aA].*/) { |
| 40 |
$needfile = 1; |
| 41 |
} |
| 42 |
} elsif ("$ARGV[0]" eq '-l') { # Label |
| 43 |
$label = $ARGV[1]; |
| 44 |
shift @ARGV; |
| 45 |
} elsif ("$ARGV[0]" eq '-log') { # Logarithmic mapping |
| 46 |
$decades = $ARGV[1]; |
| 47 |
shift @ARGV; |
| 48 |
} elsif ("$ARGV[0]" eq '-r') { |
| 49 |
$redv = $ARGV[1]; |
| 50 |
shift @ARGV; |
| 51 |
} elsif ("$ARGV[0]" eq '-g') { |
| 52 |
$grnv = $ARGV[1]; |
| 53 |
shift @ARGV; |
| 54 |
} elsif ("$ARGV[0]" eq '-b') { |
| 55 |
$bluv = $ARGV[1]; |
| 56 |
shift @ARGV; |
| 57 |
} elsif ("$ARGV[0]" eq '-pal') { |
| 58 |
$redv = "$ARGV[1]_red(v)"; |
| 59 |
$grnv = "$ARGV[1]_grn(v)"; |
| 60 |
$bluv = "$ARGV[1]_blu(v)"; |
| 61 |
shift @ARGV; |
| 62 |
} elsif ("$ARGV[0]" eq '-i') { # Image for intensity mapping |
| 63 |
$picture = $ARGV[1]; |
| 64 |
shift @ARGV; |
| 65 |
} elsif ("$ARGV[0]" eq '-p') { # Image for background |
| 66 |
$cpict = $ARGV[1]; |
| 67 |
shift @ARGV; |
| 68 |
} elsif ("$ARGV[0]" eq '-ip' || "$ARGV[0]" eq '-pi') { |
| 69 |
$picture = $ARGV[1]; |
| 70 |
$cpict = $ARGV[1]; |
| 71 |
shift @ARGV; |
| 72 |
} elsif ("$ARGV[0]" eq '-n') { # Number of contour lines |
| 73 |
$ndivs = $ARGV[1]; |
| 74 |
shift @ARGV; |
| 75 |
|
| 76 |
# Switches |
| 77 |
} elsif ("$ARGV[0]" eq '-cl') { # Contour lines |
| 78 |
$docont = 'a'; |
| 79 |
$loff = 12; |
| 80 |
} elsif ("$ARGV[0]" eq '-cb') { # Contour bands |
| 81 |
$docont = 'b'; |
| 82 |
$loff = 13; |
| 83 |
} elsif ("$ARGV[0]" eq '-e') { |
| 84 |
$doextrem = 1; |
| 85 |
$needfile = 1; |
| 86 |
|
| 87 |
# Oops! Illegal option |
| 88 |
} else { |
| 89 |
die("bad option \"$ARGV[0]\"\n"); |
| 90 |
} |
| 91 |
shift @ARGV; |
| 92 |
} |
| 93 |
|
| 94 |
# Temporary directory. Will be removed upon successful program exit. |
| 95 |
my $td = tempdir( CLEANUP => 1 ); |
| 96 |
|
| 97 |
if ($needfile == 1 && $picture eq '-') { |
| 98 |
$picture = $td . '/' . $picture; |
| 99 |
open(FHpic, ">$picture") or |
| 100 |
die("Unable to write to file $picture\n"); |
| 101 |
close(FHpic); |
| 102 |
} |
| 103 |
|
| 104 |
# Find a good scale for auto mode. |
| 105 |
if ($scale =~ m/[aA].*/) { |
| 106 |
my $LogLmax = `phisto $picture| tail -2| sed -n '1s/[0-9]*\$//p'`; |
| 107 |
$scale = $mult / 179 * 10**$LogLmax; |
| 108 |
} |
| 109 |
|
| 110 |
my $pc0 = $td . '/pc0.cal'; |
| 111 |
open(FHpc0, ">$pc0"); |
| 112 |
print FHpc0 <<EndOfPC0; |
| 113 |
PI : 3.14159265358979323846 ; |
| 114 |
scale : $scale ; |
| 115 |
mult : $mult ; |
| 116 |
ndivs : $ndivs ; |
| 117 |
gamma : 2.2; |
| 118 |
|
| 119 |
or(a,b) : if(a,a,b); |
| 120 |
EPS : 1e-7; |
| 121 |
neq(a,b) : if(a-b-EPS,1,b-a-EPS); |
| 122 |
btwn(a,x,b) : if(a-x,-1,b-x); |
| 123 |
clip(x) : if(x-1,1,if(x,x,0)); |
| 124 |
frac(x) : x - floor(x); |
| 125 |
boundary(a,b) : neq(floor(ndivs*a+.5),floor(ndivs*b+.5)); |
| 126 |
|
| 127 |
spec_red(x) = 1.6*x - .6; |
| 128 |
spec_grn(x) = if(x-.375, 1.6-1.6*x, 8/3*x); |
| 129 |
spec_blu(x) = 1 - 8/3*x; |
| 130 |
|
| 131 |
pm3d_red(x) = sqrt(x) ^ gamma; |
| 132 |
pm3d_grn(x) = x*x*x ^ gamma; |
| 133 |
pm3d_blu(x) = clip(sin(2*PI*x)) ^ gamma; |
| 134 |
|
| 135 |
hot_red(x) = clip(3*x) ^ gamma; |
| 136 |
hot_grn(x) = clip(3*x - 1) ^ gamma; |
| 137 |
hot_blu(x) = clip(3*x - 2) ^ gamma; |
| 138 |
|
| 139 |
interp_arr2(i,x,f):(i+1-x)*f(i)+(x-i)*f(i+1); |
| 140 |
interp_arr(x,f):if(x-1,if(f(0)-x,interp_arr2(floor(x),x,f),f(f(0))),f(1)); |
| 141 |
|
| 142 |
def_redp(i):select(i,0.18848,0.05468174, |
| 143 |
0.00103547,8.311144e-08,7.449763e-06,0.0004390987,0.001367254, |
| 144 |
0.003076,0.01376382,0.06170773,0.1739422,0.2881156,0.3299725, |
| 145 |
0.3552663,0.372552,0.3921184,0.4363976,0.6102754,0.7757267, |
| 146 |
0.9087369,1,1,0.9863); |
| 147 |
def_red(x):interp_arr(x/0.0454545+1,def_redp); |
| 148 |
|
| 149 |
def_grnp(i):select(i,0.0009766,2.35501e-05, |
| 150 |
0.0008966244,0.0264977,0.1256843,0.2865799,0.4247083,0.4739468, |
| 151 |
0.4402732,0.3671876,0.2629843,0.1725325,0.1206819,0.07316644, |
| 152 |
0.03761026,0.01612362,0.004773749,6.830967e-06,0.00803605, |
| 153 |
0.1008085,0.3106831,0.6447838,0.9707); |
| 154 |
def_grn(x):interp_arr(x/0.0454545+1,def_grnp); |
| 155 |
|
| 156 |
def_blup(i):select(i,0.2666,0.3638662,0.4770437, |
| 157 |
0.5131397,0.5363797,0.5193677,0.4085123,0.1702815,0.05314236, |
| 158 |
0.05194055,0.08564082,0.09881395,0.08324373,0.06072902, |
| 159 |
0.0391076,0.02315354,0.01284458,0.005184709,0.001691774, |
| 160 |
2.432735e-05,1.212949e-05,0.006659406,0.02539); |
| 161 |
def_blu(x):interp_arr(x/0.0454545+1,def_blup); |
| 162 |
|
| 163 |
isconta = if(btwn(0,v,1),or(boundary(vleft,vright),boundary(vabove,vbelow)),-1); |
| 164 |
iscontb = if(btwn(0,v,1),btwn(.4,frac(ndivs*v),.6),-1); |
| 165 |
|
| 166 |
ra = 0; |
| 167 |
ga = 0; |
| 168 |
ba = 0; |
| 169 |
|
| 170 |
in = 1; |
| 171 |
|
| 172 |
ro = if(in,clip($redv),ra); |
| 173 |
go = if(in,clip($grnv),ga); |
| 174 |
bo = if(in,clip($bluv),ba); |
| 175 |
EndOfPC0 |
| 176 |
|
| 177 |
my $pc1 = $td . '/pc1.cal'; |
| 178 |
open(FHpc1, ">$pc1"); |
| 179 |
print FHpc1 <<EndOfPC1; |
| 180 |
norm : mult/scale/le(1); |
| 181 |
|
| 182 |
v = map(li(1)*norm); |
| 183 |
|
| 184 |
vleft = map(li(1,-1,0)*norm); |
| 185 |
vright = map(li(1,1,0)*norm); |
| 186 |
vabove = map(li(1,0,1)*norm); |
| 187 |
vbelow = map(li(1,0,-1)*norm); |
| 188 |
|
| 189 |
map(x) = x; |
| 190 |
|
| 191 |
ra = ri(nfiles); |
| 192 |
ga = gi(nfiles); |
| 193 |
ba = bi(nfiles); |
| 194 |
EndOfPC1 |
| 195 |
|
| 196 |
my $pc0args = "-f $pc0"; |
| 197 |
my $pc1args = "-f $pc1"; |
| 198 |
|
| 199 |
# Contour lines or bands |
| 200 |
if ($docont ne '') { |
| 201 |
$pc0args .= " -e 'in=iscont$docont'"; |
| 202 |
} |
| 203 |
|
| 204 |
if ($cpict eq '') { |
| 205 |
$pc1args .= " -e 'ra=0;ga=0;ba=0'"; |
| 206 |
} elsif ($cpict eq $picture) { |
| 207 |
$cpict = ''; |
| 208 |
} |
| 209 |
|
| 210 |
# Logarithmic mapping |
| 211 |
if ($decades > 0) { |
| 212 |
$pc1args .= " -e 'map(x)=if(x-10^-$decades,log10(x)/$decades+1,0)'"; |
| 213 |
} |
| 214 |
|
| 215 |
# Colours in the legend |
| 216 |
my $scolpic = $td . '/scol.hdr'; |
| 217 |
# Labels in the legend |
| 218 |
my $slabpic = $td . '/slab.hdr'; |
| 219 |
my $cmd; |
| 220 |
|
| 221 |
if ($legwidth > 20 && $legheight > 40) { |
| 222 |
# Legend: Create the background colours |
| 223 |
$cmd = "pcomb $pc0args -e 'v=(y+.5)/yres;vleft=v;vright=v'"; |
| 224 |
$cmd .= " -e 'vbelow=(y-.5)/yres;vabove=(y+1.5)/yres'"; |
| 225 |
$cmd .= " -x $legwidth -y $legheight > $scolpic"; |
| 226 |
system $cmd; |
| 227 |
|
| 228 |
# Legend: Create the text labels |
| 229 |
my $sheight = floor($legheight / $ndivs + 0.5); |
| 230 |
my $text = "$label"; |
| 231 |
my $value; |
| 232 |
my $i; |
| 233 |
for ($i=0; $i<$ndivs; $i++) { |
| 234 |
my $imap = ($ndivs - 0.5 - $i) / $ndivs; |
| 235 |
if ($decades > 0) { |
| 236 |
$value = $scale * 10**(($imap - 1) * $decades); |
| 237 |
} else { |
| 238 |
$value = $scale * $imap; |
| 239 |
} |
| 240 |
# Have no more than 3 decimal places |
| 241 |
$value =~ s/(\.[0-9]{3})[0-9]*/$1/; |
| 242 |
$text .= "\n$value"; |
| 243 |
} |
| 244 |
$cmd = "echo '$text' | psign -s -.15 -cf 1 1 1 -cb 0 0 0"; |
| 245 |
$cmd .= " -h $sheight > $slabpic"; |
| 246 |
system $cmd; |
| 247 |
} else { |
| 248 |
# Legend is too small to be legible. Don't bother doing one. |
| 249 |
$legwidth = 0; |
| 250 |
$legheight = 0; |
| 251 |
open(FHscolpic, ">$scolpic"); |
| 252 |
print FHscolpic "\n-Y 1 +X 1\naaa\n"; |
| 253 |
close(FHscolpic); |
| 254 |
open(FHslabpic, ">$slabpic"); |
| 255 |
print FHslabpic "\n-Y 1 +X 1\naaa\n"; |
| 256 |
close(FHslabpic); |
| 257 |
} |
| 258 |
|
| 259 |
my $loff1 = $loff - 1; |
| 260 |
# Command line without extrema |
| 261 |
$cmd = "pcomb $pc0args $pc1args $picture $cpict"; |
| 262 |
$cmd .= "| pcompos $scolpic 0 0 +t .1"; |
| 263 |
$cmd .= " \"\!pcomb -e 'lo=1-gi(1)' $slabpic\" 2 $loff1"; |
| 264 |
$cmd .= " -t .5 $slabpic 0 $loff - $legwidth 0"; |
| 265 |
|
| 266 |
if ($doextrem == 1) { |
| 267 |
# Get min/max image luminance |
| 268 |
my $cmd1 = 'pextrem -o ' . $picture; |
| 269 |
my $retval = `$cmd1`; |
| 270 |
# e.g. |
| 271 |
# x y r g b |
| 272 |
# 193 207 3.070068e-02 3.118896e-02 1.995850e-02 |
| 273 |
# 211 202 1.292969e+00 1.308594e+00 1.300781e+00 |
| 274 |
|
| 275 |
my @extrema = split(/\s/, $retval); |
| 276 |
my $lxmin = $extrema[0] + $legwidth; |
| 277 |
my $ymin = $extrema[1]; |
| 278 |
my $rmin = $extrema[2]; |
| 279 |
my $gmin = $extrema[3]; |
| 280 |
my $bmin = $extrema[4]; |
| 281 |
my $lxmax = $extrema[5] + $legwidth; |
| 282 |
my $ymax = $extrema[6]; |
| 283 |
my $rmax = $extrema[7]; |
| 284 |
my $gmax = $extrema[8]; |
| 285 |
my $bmax = $extrema[9]; |
| 286 |
|
| 287 |
# Weighted average of R,G,B |
| 288 |
my $minpos = "$lxmin $ymin"; |
| 289 |
my $minval = ($rmin * .27 + $gmin * .67 + $bmin * .06) * $mult; |
| 290 |
$minval =~ s/(\.[0-9]{3})[0-9]*/$1/; |
| 291 |
my $maxpos = "$lxmax $ymax"; |
| 292 |
my $maxval = ($rmax * .27 + $gmax * .67 + $bmax * .06) * $mult; |
| 293 |
$maxval =~ s/(\.[0-9]{3})[0-9]*/$1/; |
| 294 |
|
| 295 |
# Create the labels for min/max intensity |
| 296 |
my $minvpic = $td . '/minv.hdr'; |
| 297 |
$cmd1 = "psign -s -.15 -a 2 -h 16 $minval > $minvpic"; |
| 298 |
system $cmd1; |
| 299 |
my $maxvpic = $td . '/maxv.hdr'; |
| 300 |
$cmd1 = "psign -s -.15 -a 2 -h 16 $maxval > $maxvpic"; |
| 301 |
system $cmd1; |
| 302 |
|
| 303 |
# Add extrema labels to command line |
| 304 |
$cmd .= " $minvpic $minpos $maxvpic $maxpos"; |
| 305 |
} |
| 306 |
|
| 307 |
# Process image and combine with legend |
| 308 |
system "$cmd"; |
| 309 |
|
| 310 |
#EOF |
