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#!/usr/bin/perl -w |
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# RCSid $Id: falsecolor.pl,v 2.18 2022/11/11 02:50:26 greg Exp $ |
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|
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use warnings; |
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use strict; |
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use File::Temp qw/ tempdir /; |
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use POSIX qw/ floor /; |
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|
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my @palettes = ('def', 'spec', 'pm3d', 'hot', 'eco', 'tbo'); |
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|
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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 |
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my $scale = 1000; # Top of the scale |
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my $scaledigits = 3; # Number of maximum digits for numbers in legend |
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my $decades = 0; # Default is linear mapping |
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my $pal = 'def'; # Palette |
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my $redv = "${pal}_red(v)"; # Mapping functions for R,G,B |
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my $grnv = "${pal}_grn(v)"; |
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my $bluv = "${pal}_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 $haszero = 1; # print 0 in scale for falsecolor images only |
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my $docont = ''; # Contours: -cl and -cb |
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my $doposter = 0; # Posterization: -cp |
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my $doextrem = 0; # Don't mark extrema |
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my $needfile = 0; |
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my $showpal = 0; # Show available colour palettes |
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|
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my @savedARGV = @ARGV; # Save for final header |
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|
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while ($#ARGV >= 0) { |
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$_ = shift; |
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# Options with qualifiers |
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if (m/-lw/) { # Legend width |
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$legwidth = shift; |
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} elsif (m/-lh/) { # Legend height |
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$legheight = shift; |
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} elsif (m/-m/) { # Multiplier |
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$mult = shift; |
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} elsif (m/-spec/) { |
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die("depricated option '-spec'. Please use '-pal spec' instead."); |
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} elsif (m/-s/) { # Scale |
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$scale = shift; |
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if ($scale =~ m/[aA].*/) { |
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$needfile = 1; |
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} |
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} elsif (m/-d/) { # Number of maximum digits for numbers in legend |
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$scaledigits = shift; |
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} elsif (m/-l$/) { # Label |
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$label = shift; |
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} elsif (m/-log/) { # Logarithmic mapping |
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$decades = shift; |
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} elsif (m/-r/) { # Custom palette functions for R,G,B |
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$redv = shift; |
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} elsif (m/-g/) { |
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$grnv = shift; |
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} elsif (m/-b/) { |
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$bluv = shift; |
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} elsif (m/-pal$/) { # Color palette |
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$pal = shift; |
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if (! grep $_ eq $pal, @palettes) { |
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die("invalid palette '$pal'.\n"); |
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} |
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$redv = "${pal}_red(v)"; |
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$grnv = "${pal}_grn(v)"; |
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$bluv = "${pal}_blu(v)"; |
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} elsif (m/-i$/) { # Image for intensity mapping |
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$picture = shift; |
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} elsif (m/-p$/) { # Image for background |
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$cpict = shift; |
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} elsif (m/-ip/ || m/-pi/) { |
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$picture = shift; |
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$cpict = $picture; |
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} elsif (m/-n/) { # Number of contour lines |
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$ndivs = shift; |
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|
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# Switches |
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} elsif (m/-cl/) { # Contour lines |
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$docont = 'a'; |
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$haszero = 0; |
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} elsif (m/-cb/) { # Contour bands |
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$docont = 'b'; |
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$haszero = 0; |
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} elsif (m/-cp/) { # Posterize |
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$doposter = 1; |
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$haszero = 0; |
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} elsif (m/-palettes/) { # Show all available palettes |
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$scale = 45824; # 256 * 179 |
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$showpal = 1; |
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} elsif (m/-e/) { |
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$doextrem = 1; |
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$needfile = 1; |
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# Oops! Illegal option |
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} else { |
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die("bad option \"$_\"\n"); |
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} |
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} |
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|
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if (($legwidth <= 20) || ($legheight <= 40)) { |
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# Legend is too small to be legible. Don't bother doing one. |
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$legwidth = 0; |
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$legheight = 0; |
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} |
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|
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# Temporary directory. Will be removed upon successful program exit. |
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my $td = tempdir( CLEANUP => 1 ); |
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|
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if ($needfile == 1 && $picture eq '-') { |
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# Pretend that $td/stdin.rad is the actual filename. |
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$picture = "$td/stdin.hdr"; |
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open(FHpic, ">$picture") or |
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die("Unable to write to file $picture\n"); |
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# Input is from STDIN: Capture to file. |
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while (<>) { |
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print FHpic; |
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} |
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close(FHpic); |
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|
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if ($cpict eq '-') { |
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$cpict = $picture; |
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} |
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} |
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|
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# Find a good scale for auto mode. |
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if ($scale =~ m/[aA].*/) { |
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my @histo = split(/\s/, `phisto $picture`); |
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# e.g. $ phisto tests/richmond.hdr| tail -2 |
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# 3.91267 14 |
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# 3.94282 6 |
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my $LogLmax = $histo[-4]; |
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$scale = $mult / 179 * 10**$LogLmax; |
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} |
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|
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if ($docont ne '') { |
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# -cl -> $docont = a |
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# -cb -> $docont = b |
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my $newv = join( "(v-1/ndivs)*ndivs/(ndivs-1)", split("v", $redv) ); |
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$redv = $newv; |
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$newv = join( "(v-1/ndivs)*ndivs/(ndivs-1)", split("v", $bluv) ); |
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$bluv = $newv; |
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$newv = join( "(v-1/ndivs)*ndivs/(ndivs-1)", split("v", $grnv) ); |
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$grnv = $newv; |
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} elsif ($doposter == 1) { |
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# -cp -> $doposter = 1 |
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my $newv = join( "seg2(v)", split("v", $redv) ); |
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$redv = $newv; |
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$newv = join( "seg2(v)", split("v", $bluv) ); |
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$bluv = $newv; |
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$newv = join( "seg2(v)", split("v", $grnv) ); |
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$grnv = $newv; |
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} |
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|
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my $pc0 = "$td/pc0.cal"; |
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open(FHpc0, ">$pc0"); |
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print FHpc0 <<EndOfPC0; |
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PI : 3.14159265358979323846 ; |
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scale : $scale ; |
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mult : $mult ; |
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ndivs : $ndivs ; |
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gamma : 2.2; |
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|
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or(a,b) : if(a,a,b); |
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EPS : 1e-7; |
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neq(a,b) : if(a-b-EPS,1,b-a-EPS); |
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btwn(a,x,b) : if(a-x,-1,b-x); |
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clip(x) : min(1,max(x,0)); |
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frac(x) : x - floor(x); |
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boundary(a,b) : neq(floor(ndivs*a),floor(ndivs*b)); |
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round(x) : floor(x+.5); |
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|
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spec_red(x) = 1.6*x - .6; |
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spec_grn(x) = if(x-.375, 1.6-1.6*x, 8/3*x); |
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spec_blu(x) = 1 - 8/3*x; |
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|
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pm3d_red(x) = sqrt(clip(x)) ^ gamma; |
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pm3d_grn(x) = clip(x*x*x) ^ gamma; |
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pm3d_blu(x) = clip(sin(2*PI*clip(x))) ^ gamma; |
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|
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hot_red(x) = clip(3*x) ^ gamma; |
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hot_grn(x) = clip(3*x - 1) ^ gamma; |
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hot_blu(x) = clip(3*x - 2) ^ gamma; |
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|
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eco_red(x) = clip(2*x) ^ gamma; |
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eco_grn(x) = clip(2*(x-0.5)) ^ gamma; |
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eco_blu(x) = clip(2*(0.5-x)) ^ gamma; |
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|
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interp_arr2(i,x,f):(i+1-x)*f(i)+(x-i)*f(i+1); |
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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)); |
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|
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interp_tbo2(x,f):f(round(x*255)+1)+(f(min(255,round(x*255)+1)+1)-f(round(x*255)+1))*(x*255-round(x*255)); |
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interp_tbo(x,f):if(x-1,f(256),if(x,interp_tbo2(x,f),f(1))); |
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|
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def_redp(i):select(i,0.18848,0.05468174, |
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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); |
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|
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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); |
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def_grn(x):interp_arr(x/0.0454545+1,def_grnp); |
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|
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def_blup(i):select(i,0.2666,0.3638662,0.4770437, |
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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, |
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0.0391076,0.02315354,0.01284458,0.005184709,0.001691774, |
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2.432735e-05,1.212949e-05,0.006659406,0.02539); |
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def_blu(x):interp_arr(x/0.0454545+1,def_blup); |
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|
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tbo_redp(i):select(i,0.18995,0.19483,0.19956,0.20415,0.2086,0.21291,0.21708,0.22111,0.225,0.22875,0.23236,0.23582,0.23915,0.24234,0.24539,0.2483,0.25107,0.25369,0.25618,0.25853,0.26074,0.2628,0.26473,0.26652,0.26816,0.26967,0.27103,0.27226,0.27334,0.27429,0.27509,0.27576,0.27628,0.27667,0.27691,0.27701,0.27698,0.2768,0.27648,0.27603,0.27543,0.27469,0.27381,0.27273,0.27106,0.26878,0.26592,0.26252,0.25862,0.25425,0.24946,0.24427,0.23874,0.23288,0.22676,0.22039,0.21382,0.20708,0.20021,0.19326,0.18625,0.17923,0.17223,0.16529,0.15844,0.15173,0.14519,0.13886,0.13278,0.12698,0.12151,0.11639,0.11167,0.10738,0.10357,0.10026,0.0975,0.09532,0.09377,0.09287,0.09267,0.0932,0.09451,0.09662,0.09958,0.10342,0.10815,0.11374,0.12014,0.12733,0.13526,0.14391,0.15323,0.16319,0.17377,0.18491,0.19659,0.20877,0.22142,0.23449,0.24797,0.2618,0.27597,0.29042,0.30513,0.32006,0.33517,0.35043,0.36581,0.38127,0.39678,0.41229,0.42778,0.44321,0.45854,0.47375,0.48879,0.50362,0.51822,0.53255,0.54658,0.56026,0.57357,0.58646,0.59891,0.61088,0.62233,0.63323,0.64362,0.65394,0.66428,0.67462,0.68494,0.69525,0.70553,0.71577,0.72596,0.7361,0.74617,0.75617,0.76608,0.77591,0.78563,0.79524,0.80473,0.8141,0.82333,0.83241,0.84133,0.8501,0.85868,0.86709,0.8753,0.88331,0.89112,0.8987,0.90605,0.91317,0.92004,0.92666,0.93301,0.93909,0.94489,0.95039,0.9556,0.96049,0.96507,0.96931,0.97323,0.97679,0.98,0.98289,0.98549,0.98781,0.98986,0.99163,0.99314,0.99438,0.99535,0.99607,0.99654,0.99675,0.99672,0.99644,0.99593,0.99517,0.99419,0.99297,0.99153,0.98987,0.98799,0.9859,0.9836,0.98108,0.97837,0.97545,0.97234,0.96904,0.96555,0.96187,0.95801,0.95398,0.94977,0.94538,0.94084,0.93612,0.93125,0.92623,0.92105,0.91572,0.91024,0.90463,0.89888,0.89298,0.88691,0.88066,0.87422,0.8676,0.86079,0.8538,0.84662,0.83926,0.83172,0.82399,0.81608,0.80799,0.79971,0.79125,0.7826,0.77377,0.76476,0.75556,0.74617,0.73661,0.72686,0.71692,0.7068,0.6965,0.68602,0.67535,0.66449,0.65345,0.64223,0.63082,0.61923,0.60746,0.5955,0.58336,0.57103,0.55852,0.54583,0.53295,0.51989,0.50664,0.49321,0.4796); |
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tbo_red(x):interp_tbo(x,tbo_redp) ^ gamma; |
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|
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tbo_grnp(i):select(i,0.07176,0.08339,0.09498,0.10652,0.11802,0.12947,0.14087,0.15223,0.16354,0.17481,0.18603,0.1972,0.20833,0.21941,0.23044,0.24143,0.25237,0.26327,0.27412,0.28492,0.29568,0.30639,0.31706,0.32768,0.33825,0.34878,0.35926,0.3697,0.38008,0.39043,0.40072,0.41097,0.42118,0.43134,0.44145,0.45152,0.46153,0.47151,0.48144,0.49132,0.50115,0.51094,0.52069,0.5304,0.54015,0.54995,0.55979,0.56967,0.57958,0.5895,0.59943,0.60937,0.61931,0.62923,0.63913,0.64901,0.65886,0.66866,0.67842,0.68812,0.69775,0.70732,0.7168,0.7262,0.73551,0.74472,0.75381,0.76279,0.77165,0.78037,0.78896,0.7974,0.80569,0.81381,0.82177,0.82955,0.83714,0.84455,0.85175,0.85875,0.86554,0.87211,0.87844,0.88454,0.8904,0.896,0.90142,0.90673,0.91193,0.91701,0.92197,0.9268,0.93151,0.93609,0.94053,0.94484,0.94901,0.95304,0.95692,0.96065,0.96423,0.96765,0.97092,0.97403,0.97697,0.97974,0.98234,0.98477,0.98702,0.98909,0.99098,0.99268,0.99419,0.99551,0.99663,0.99755,0.99828,0.99879,0.9991,0.99919,0.99907,0.99873,0.99817,0.99739,0.99638,0.99514,0.99366,0.99195,0.98999,0.98775,0.98524,0.98246,0.97941,0.9761,0.97255,0.96875,0.9647,0.96043,0.95593,0.95121,0.94627,0.94113,0.93579,0.93025,0.92452,0.91861,0.91253,0.90627,0.89986,0.89328,0.88655,0.87968,0.87267,0.86553,0.85826,0.85087,0.84337,0.83576,0.82806,0.82025,0.81236,0.80439,0.79634,0.78823,0.78005,0.77181,0.76352,0.75519,0.74682,0.73842,0.73,0.7214,0.7125,0.7033,0.69382,0.68408,0.67408,0.66386,0.65341,0.64277,0.63193,0.62093,0.60977,0.59846,0.58703,0.57549,0.56386,0.55214,0.54036,0.52854,0.51667,0.50479,0.49291,0.48104,0.4692,0.4574,0.44565,0.43399,0.42241,0.41093,0.39958,0.38836,0.37729,0.36638,0.35566,0.34513,0.33482,0.32473,0.31489,0.3053,0.29599,0.28696,0.27824,0.26981,0.26152,0.25334,0.24526,0.2373,0.22945,0.2217,0.21407,0.20654,0.19912,0.19182,0.18462,0.17753,0.17055,0.16368,0.15693,0.15028,0.14374,0.13731,0.13098,0.12477,0.11867,0.11268,0.1068,0.10102,0.09536,0.0898,0.08436,0.07902,0.0738,0.06868,0.06367,0.05878,0.05399,0.04931,0.04474,0.04028,0.03593,0.03169,0.02756,0.02354,0.01963,0.01583); |
| 221 |
tbo_grn(x):interp_tbo(x,tbo_grnp) ^ gamma; |
| 222 |
|
| 223 |
tbo_blup(i):select(i,0.23217,0.26149,0.29024,0.31844,0.34607,0.37314,0.39964,0.42558,0.45096,0.47578,0.50004,0.52373,0.54686,0.56942,0.59142,0.61286,0.63374,0.65406,0.67381,0.693,0.71162,0.72968,0.74718,0.76412,0.7805,0.79631,0.81156,0.82624,0.84037,0.85393,0.86692,0.87936,0.89123,0.90254,0.91328,0.92347,0.93309,0.94214,0.95064,0.95857,0.96594,0.97275,0.97899,0.98461,0.9893,0.99303,0.99583,0.99773,0.99876,0.99896,0.99835,0.99697,0.99485,0.99202,0.98851,0.98436,0.97959,0.97423,0.96833,0.9619,0.95498,0.94761,0.93981,0.93161,0.92305,0.91416,0.90496,0.8955,0.8858,0.8759,0.86581,0.85559,0.84525,0.83484,0.82437,0.81389,0.80342,0.79299,0.78264,0.7724,0.7623,0.75237,0.74265,0.73316,0.72393,0.715,0.70599,0.69651,0.6866,0.67627,0.66556,0.65448,0.64308,0.63137,0.61938,0.60713,0.59466,0.58199,0.56914,0.55614,0.54303,0.52981,0.51653,0.50321,0.48987,0.47654,0.46325,0.45002,0.43688,0.42386,0.41098,0.39826,0.38575,0.37345,0.3614,0.34963,0.33816,0.32701,0.31622,0.30581,0.29581,0.28623,0.27712,0.26849,0.26038,0.2528,0.24579,0.23937,0.23356,0.22835,0.2237,0.2196,0.21602,0.21294,0.21032,0.20815,0.2064,0.20504,0.20406,0.20343,0.20311,0.2031,0.20336,0.20386,0.20459,0.20552,0.20663,0.20788,0.20926,0.21074,0.2123,0.21391,0.21555,0.21719,0.2188,0.22038,0.22188,0.22328,0.22456,0.2257,0.22667,0.22744,0.228,0.22831,0.22836,0.22811,0.22754,0.22663,0.22536,0.22369,0.22161,0.21918,0.2165,0.21358,0.21043,0.20706,0.20348,0.19971,0.19577,0.19165,0.18738,0.18297,0.17842,0.17376,0.16899,0.16412,0.15918,0.15417,0.1491,0.14398,0.13883,0.13367,0.12849,0.12332,0.11817,0.11305,0.10797,0.10294,0.09798,0.0931,0.08831,0.08362,0.07905,0.07461,0.07031,0.06616,0.06218,0.05837,0.05475,0.05134,0.04814,0.04516,0.04243,0.03993,0.03753,0.03521,0.03297,0.03082,0.02875,0.02677,0.02487,0.02305,0.02131,0.01966,0.01809,0.0166,0.0152,0.01387,0.01264,0.01148,0.01041,0.00942,0.00851,0.00769,0.00695,0.00629,0.00571,0.00522,0.00481,0.00449,0.00424,0.00408,0.00401,0.00401,0.0041,0.00427,0.00453,0.00486,0.00529,0.00579,0.00638,0.00705,0.0078,0.00863,0.00955,0.01055); |
| 224 |
tbo_blu(x):interp_tbo(x,tbo_blup) ^ gamma; |
| 225 |
|
| 226 |
isconta = if(btwn(1/ndivs/2,v,1+1/ndivs/2),or(boundary(vleft,vright),boundary(vabove,vbelow)),-1); |
| 227 |
iscontb = if(btwn(1/ndivs/2,v,1+1/ndivs/2),-btwn(.1,frac(ndivs*v),.9),-1); |
| 228 |
|
| 229 |
seg(x)=(floor(v*ndivs)+.5)/ndivs; |
| 230 |
seg2(x)=(seg(x)-1/ndivs)*ndivs/(ndivs-1); |
| 231 |
|
| 232 |
ra = 0; |
| 233 |
ga = 0; |
| 234 |
ba = 0; |
| 235 |
|
| 236 |
in = 1; |
| 237 |
|
| 238 |
ro = if(in,clip($redv),ra); |
| 239 |
go = if(in,clip($grnv),ga); |
| 240 |
bo = if(in,clip($bluv),ba); |
| 241 |
EndOfPC0 |
| 242 |
close FHpc0; |
| 243 |
|
| 244 |
my $pc1 = "$td/pc1.cal"; |
| 245 |
open(FHpc1, ">$pc1"); |
| 246 |
print FHpc1 <<EndOfPC1; |
| 247 |
norm : mult/scale/le(1); |
| 248 |
|
| 249 |
v = map(li(1)*norm); |
| 250 |
|
| 251 |
vleft = map(li(1,-1,0)*norm); |
| 252 |
vright = map(li(1,1,0)*norm); |
| 253 |
vabove = map(li(1,0,1)*norm); |
| 254 |
vbelow = map(li(1,0,-1)*norm); |
| 255 |
|
| 256 |
map(x) = x; |
| 257 |
|
| 258 |
|
| 259 |
ra = ri(nfiles); |
| 260 |
ga = gi(nfiles); |
| 261 |
ba = bi(nfiles); |
| 262 |
EndOfPC1 |
| 263 |
close FHpc1; |
| 264 |
|
| 265 |
my $pc0args = "-f $pc0"; |
| 266 |
my $pc1args = "-f $pc1"; |
| 267 |
|
| 268 |
if ($showpal == 1) { |
| 269 |
my $pc = "pcompos -a 1"; |
| 270 |
foreach my $pal (@palettes) { |
| 271 |
my $fcimg = "$td/$pal.hdr"; |
| 272 |
my $lbimg = "$td/${pal}_label.hdr"; |
| 273 |
system "psign -cb 0 0 0 -cf 1 1 1 -h 20 $pal > $lbimg"; |
| 274 |
|
| 275 |
my $cmd = qq[pcomb $pc0args -e "v=x/256"]; |
| 276 |
$cmd .= qq[ -e "ro=clip(${pal}_red(v));go=clip(${pal}_grn(v));bo=clip(${pal}_blu(v))"]; |
| 277 |
$cmd .= qq[ -x 256 -y 30 > $fcimg]; |
| 278 |
system "$cmd"; |
| 279 |
$pc .= " $fcimg $lbimg"; |
| 280 |
} |
| 281 |
system "$pc"; |
| 282 |
exit 0; |
| 283 |
} |
| 284 |
|
| 285 |
# Contours |
| 286 |
if ($docont ne '') { |
| 287 |
# -cl -> $docont = a |
| 288 |
# -cb -> $docont = b |
| 289 |
$pc0args .= qq[ -e "in=iscont$docont"]; |
| 290 |
} |
| 291 |
|
| 292 |
if ($cpict eq '') { |
| 293 |
$pc1args .= qq[ -e "ra=0;ga=0;ba=0"]; |
| 294 |
} elsif ($cpict eq $picture) { |
| 295 |
$cpict = ''; |
| 296 |
} |
| 297 |
|
| 298 |
# Logarithmic mapping |
| 299 |
if ($decades > 0) { |
| 300 |
$pc1args .= qq[ -e "map(x)=if(x-10^-$decades,log10(x)/$decades+1,0)"]; |
| 301 |
} |
| 302 |
|
| 303 |
# Colours in the legend |
| 304 |
my $scolpic = "$td/scol.hdr"; |
| 305 |
|
| 306 |
# Labels in the legend |
| 307 |
my $slabpic = "$td/slab.hdr"; |
| 308 |
my $cmd; |
| 309 |
if ($legwidth > 0) { |
| 310 |
# Legend: Create the text labels |
| 311 |
my $sheight = floor($legheight / $ndivs ); |
| 312 |
my $theight = floor($legwidth/(8/1.67)); |
| 313 |
my $stheight = $sheight <= $theight ? $sheight : $theight; |
| 314 |
my $vlegheight = $sheight * $ndivs * (1+1.5/$ndivs); |
| 315 |
my $tslabpic = "$td/slabT.hdr"; |
| 316 |
system "psign -s -.15 -cf 1 1 1 -cb 0 0 0 -h $stheight $label > $tslabpic"; |
| 317 |
my $loop = $ndivs+$haszero; |
| 318 |
my $hlegheight = $sheight * ($loop) + $sheight * .5; |
| 319 |
my $pcompost = qq[pcompos -b 0 0 0 =-0 $tslabpic 0 $hlegheight ]; |
| 320 |
for (my $i=0; $i<$loop; $i++) { |
| 321 |
my $imap = ($ndivs - $i) / $ndivs; |
| 322 |
my $value = $scale; |
| 323 |
if ($decades > 0) { |
| 324 |
$value *= 10**(($imap - 1) * $decades); |
| 325 |
} else { |
| 326 |
$value *= $imap; |
| 327 |
} |
| 328 |
# Have no more than 3 decimal places |
| 329 |
$value =~ s/(\.[0-9]{$scaledigits})[0-9]*/$1/; |
| 330 |
$tslabpic = "$td/slab$i.hdr"; |
| 331 |
system "psign -s -.15 -cf 1 1 1 -cb 0 0 0 -h $stheight $value > $tslabpic"; |
| 332 |
$hlegheight = $sheight * ($loop - $i - 1) + $sheight * .5; |
| 333 |
$pcompost .= qq[=-0 $tslabpic 0 $hlegheight ]; |
| 334 |
} |
| 335 |
$pcompost .= qq[ > $slabpic]; |
| 336 |
system $pcompost; |
| 337 |
|
| 338 |
# Legend: Create the background colours |
| 339 |
$cmd = qq[pcomb $pc0args]; |
| 340 |
$cmd .= qq[ -x $legwidth -y $vlegheight]; |
| 341 |
$cmd .= qq[ -e "v=(y+.5-$sheight)/(yres/(1+1.5/$ndivs));vleft=v;vright=v"]; |
| 342 |
$cmd .= qq[ -e "vbelow=(y-.5-$sheight)/(yres/(1+1.5/$ndivs));vabove=(y+1.5-$sheight)/(yres/(1+1.5/$ndivs))"]; |
| 343 |
$cmd .= qq[ -e "ra=0;ga=0;ba=0;"]; |
| 344 |
$cmd .= qq[ > $scolpic]; |
| 345 |
system $cmd; |
| 346 |
} else { |
| 347 |
# Create dummy colour scale and legend labels so we don't |
| 348 |
# need to change the final command line. |
| 349 |
system "pcomb -x 1 -y 1 -e lo=1 > $scolpic"; |
| 350 |
system "pcomb -x 1 -y 1 -e lo=1 > $slabpic"; |
| 351 |
} |
| 352 |
|
| 353 |
# Legend: Invert the text labels (for dropshadow) |
| 354 |
my $slabinvpic = "$td/slabinv.hdr"; |
| 355 |
$cmd = qq[pcomb -e "lo=1-gi(1)" $slabpic > $slabinvpic]; |
| 356 |
system $cmd; |
| 357 |
|
| 358 |
|
| 359 |
my $sh0 = -floor($legheight / $ndivs / 2); |
| 360 |
if ($haszero < 1) { |
| 361 |
$sh0 = -floor($legheight / ($ndivs)*1.5); |
| 362 |
} |
| 363 |
|
| 364 |
# Command line without extrema |
| 365 |
|
| 366 |
$cmd = qq[pcomb $pc0args $pc1args "$picture"]; |
| 367 |
$cmd .= qq[ "$cpict"] if ($cpict); |
| 368 |
$cmd .= qq[ | pcompos -h -b 0 0 0 $scolpic 0 $sh0 +t .1 $slabinvpic 2 -1 ]; |
| 369 |
$cmd .= qq[ -t .5 $slabpic 0 0 - $legwidth 0]; |
| 370 |
|
| 371 |
if ($doextrem == 1) { |
| 372 |
# Get min/max image luminance |
| 373 |
my $cmd1 = 'pextrem -o ' . $picture; |
| 374 |
my $retval = `$cmd1`; |
| 375 |
# e.g. |
| 376 |
# x y r g b |
| 377 |
# 193 207 3.070068e-02 3.118896e-02 1.995850e-02 |
| 378 |
# 211 202 1.292969e+00 1.308594e+00 1.300781e+00 |
| 379 |
|
| 380 |
my @extrema = split(/\s/, $retval); |
| 381 |
my ($lxmin, $ymin, $rmin, $gmin, $bmin, $lxmax, $ymax, $rmax, $gmax, $bmax) = @extrema; |
| 382 |
$lxmin += $legwidth; |
| 383 |
$lxmax += $legwidth; |
| 384 |
|
| 385 |
# Weighted average of R,G,B |
| 386 |
my $minpos = "$lxmin $ymin"; |
| 387 |
my $minval = ($rmin * .27 + $gmin * .67 + $bmin * .06) * $mult; |
| 388 |
$minval =~ s/(\.[0-9]{$scaledigits})[0-9]*/$1/; |
| 389 |
my $maxval = ($rmax * .27 + $gmax * .67 + $bmax * .06) * $mult; |
| 390 |
$maxval =~ s/(\.[0-9]{$scaledigits})[0-9]*/$1/; |
| 391 |
|
| 392 |
# Create the labels for min/max intensity |
| 393 |
my $minvpic = "$td/minv.hdr"; |
| 394 |
system "psign -s -.15 -a 2 -h 16 $minval > $minvpic"; |
| 395 |
my $maxvpic = "$td/maxv.hdr"; |
| 396 |
system "psign -s -.15 -a 2 -h 16 $maxval > $maxvpic"; |
| 397 |
|
| 398 |
# Add extrema labels to command line |
| 399 |
$cmd .= qq[ $minvpic $minpos $maxvpic $lxmax $ymax]; |
| 400 |
} |
| 401 |
|
| 402 |
# Clean up and simplify info header with this command |
| 403 |
$cmd .= qq[ | getinfo -r "pcompos " "falsecolor @savedARGV"]; |
| 404 |
|
| 405 |
# Process image and combine with legend |
| 406 |
system "$cmd"; |
| 407 |
|
| 408 |
#EOF |
