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root/radiance/ray/src/px/falsecolor.pl
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Comparing ray/src/px/falsecolor.pl (file contents):
Revision 2.11 by greg, Tue Sep 5 22:42:52 2017 UTC vs.
Revision 2.12 by greg, Mon Sep 25 18:48:11 2017 UTC

# Line 11 | Line 11 | my @palettes = ('def', 'spec', 'pm3d', 'hot', 'eco');
11   my $mult = 179.0;              # Multiplier. Default W/sr/m2 -> cd/m2
12   my $label = 'cd/m2';           # Units shown in legend
13   my $scale = 1000;              # Top of the scale
14 < my $matchscale = 1;            # Adjust top of scale to match given label
14 > my $scaledigits = 3;           # Number of maximum digits for numbers in legend
15   my $decades = 0;               # Default is linear mapping
16   my $pal = 'def';               # Palette
17   my $redv = "${pal}_red(v)";    # Mapping functions for R,G,B
# Line 22 | Line 22 | my $picture = '-';
22   my $cpict = '';
23   my $legwidth = 100;            # Legend width and height
24   my $legheight = 200;
25 + my $haszero = 1;               # print 0 in scale for falsecolor images only
26   my $docont = '';               # Contours: -cl and -cb
27   my $doposter = 0;              # Posterization: -cp
27 my $loff = 0;                  # Offset to align with values
28   my $doextrem = 0;              # Don't mark extrema
29   my $needfile = 0;
30   my $showpal = 0;               # Show availabel colour palettes
# Line 43 | Line 43 | while ($#ARGV >= 0) {
43      } elsif (m/-s/) {          # Scale
44          $scale = shift;
45          if ($scale =~ m/[aA].*/) {
46            $matchscale = 0;
46              $needfile = 1;
47 <       } else {
48 <            $matchscale = 1;
49 <        }
47 >       }
48 >    } elsif (m/-d/) {          # Number of maximum digits for numbers in legend
49 >        $scaledigits = shift;
50      } elsif (m/-l$/) {         # Label
51          $label = shift;
52      } elsif (m/-log/) {        # Logarithmic mapping
# Line 79 | Line 78 | while ($#ARGV >= 0) {
78      # Switches
79      } elsif (m/-cl/) {         # Contour lines
80          $docont = 'a';
81 <        $loff = 0.48;
81 >        $haszero = 0;
82      } elsif (m/-cb/) {         # Contour bands
83          $docont = 'b';
84 <        $loff = 0.52;
84 >        $haszero = 0;
85      } elsif (m/-cp/) {              # Posterize
86          $doposter = 1;
87 +        $haszero = 0;
88      } elsif (m/-palettes/) {        # Show all available palettes
89          $scale   = 45824;           # 256 * 179
90          $showpal = 1;
91      } elsif (m/-e/) {
92          $doextrem = 1;
93          $needfile = 1;
94
94      # Oops! Illegal option
95      } else {
96          die("bad option \"$_\"\n");
# Line 102 | Line 101 | if (($legwidth <= 20) || ($legheight <= 40)) {
101      # Legend is too small to be legible. Don't bother doing one.
102      $legwidth = 0;
103      $legheight = 0;
105    $loff = 0;
106    $matchscale = 0;
104   }
105  
106   # Temporary directory. Will be removed upon successful program exit.
# Line 133 | Line 130 | if ($scale =~ m/[aA].*/) {
130      # 3.94282   6
131      my $LogLmax = $histo[0];
132      $scale = $mult / 179 * 10**$LogLmax;
133 < } elsif ($matchscale) {
134 <    # Adjust scale so legend reflects -s setting
135 <    if ($decades > 0) {
136 <        $scale *= 10**($decades/(2.*$ndivs));
137 <    } else {
138 <        $scale *= $ndivs/($ndivs - .5);
139 <    }
133 > }  
134 >
135 > if ($docont ne '') {
136 >    # -cl -> $docont = a
137 >    # -cb -> $docont = b
138 >    my $newv = join( "(v-1/ndivs)*ndivs/(ndivs-1)", split("v", $redv) );
139 >    $redv = $newv;
140 >    $newv = join( "(v-1/ndivs)*ndivs/(ndivs-1)", split("v", $bluv) );
141 >    $bluv = $newv;
142 >    $newv = join( "(v-1/ndivs)*ndivs/(ndivs-1)", split("v", $grnv) );
143 >    $grnv = $newv;
144 > } elsif ($doposter == 1) {
145 >    # -cp -> $doposter = 1
146 >    my $newv = join( "seg2(v)", split("v", $redv) );
147 >    $redv = $newv;
148 >    $newv = join( "seg2(v)", split("v", $bluv) );
149 >    $bluv = $newv;
150 >    $newv = join( "seg2(v)", split("v", $grnv) );
151 >    $grnv = $newv;
152   }
153  
154   my $pc0 = "$td/pc0.cal";
# Line 157 | Line 166 | neq(a,b) : if(a-b-EPS,1,b-a-EPS);
166   btwn(a,x,b) : if(a-x,-1,b-x);
167   clip(x) : if(x-1,1,if(x,x,0));
168   frac(x) : x - floor(x);
169 < boundary(a,b) : neq(floor(ndivs*a+.5),floor(ndivs*b+.5));
169 > boundary(a,b) : neq(floor(ndivs*a),floor(ndivs*b));
170  
171   spec_red(x) = 1.6*x - .6;
172   spec_grn(x) = if(x-.375, 1.6-1.6*x, 8/3*x);
173   spec_blu(x) = 1 - 8/3*x;
174  
175 < pm3d_red(x) = sqrt(x) ^ gamma;
176 < pm3d_grn(x) = (x*x*x) ^ gamma;
175 > pm3d_red(x) = sqrt(clip(x)) ^ gamma;
176 > pm3d_grn(x) = clip(x*x*x) ^ gamma;
177   pm3d_blu(x) = clip(sin(2*PI*clip(x))) ^ gamma;
178  
179   hot_red(x) = clip(3*x) ^ gamma;
# Line 199 | Line 208 | def_blup(i):select(i,0.2666,0.3638662,0.4770437,
208   2.432735e-05,1.212949e-05,0.006659406,0.02539);
209   def_blu(x):interp_arr(x/0.0454545+1,def_blup);
210  
211 < isconta = if(btwn(0,v,1),or(boundary(vleft,vright),boundary(vabove,vbelow)),-1);
212 < iscontb = if(btwn(0,v,1),btwn(.4,frac(ndivs*v),.6),-1);
211 > isconta = if(btwn(1/ndivs/2,v,1+1/ndivs/2),or(boundary(vleft,vright),boundary(vabove,vbelow)),-1);
212 > iscontb = if(btwn(1/ndivs/2,v,1+1/ndivs/2),-btwn(.1,frac(ndivs*v),.9),-1);
213  
214 + seg(x)=(floor(v*ndivs)+.5)/ndivs;
215 + seg2(x)=(seg(x)-1/ndivs)*ndivs/(ndivs-1);
216 +
217   ra = 0;
218   ga = 0;
219   ba = 0;
# Line 228 | Line 240 | vbelow = map(li(1,0,-1)*norm);
240  
241   map(x) = x;
242  
243 +
244   ra = ri(nfiles);
245   ga = gi(nfiles);
246   ba = bi(nfiles);
# Line 259 | Line 272 | if ($docont ne '') {
272      # -cl -> $docont = a
273      # -cb -> $docont = b
274      $pc0args .= qq[ -e "in=iscont$docont"];
262 } elsif ($doposter == 1) {
263    # -cp -> $doposter = 1
264    $pc0args .= qq[ -e "ro=${pal}_red(seg(v));go=${pal}_grn(seg(v));bo=${pal}_blu(seg(v))"];
265    $pc0args .= q[ -e "seg(x)=(floor(v*ndivs)+.5)/ndivs"];
275   }
276  
277   if ($cpict eq '') {
# Line 282 | Line 291 | my $scolpic = "$td/scol.hdr";
291   # Labels in the legend
292   my $slabpic = "$td/slab.hdr";
293   my $cmd;
285
294   if ($legwidth > 0) {
295      # Legend: Create the text labels
296 <    my $sheight = floor($legheight / $ndivs + 0.5);
297 <    $legheight = $sheight * $ndivs;
298 <    $loff = floor($loff * $sheight + 0.5);
299 <    my $text = "$label";
300 <    for (my $i=0; $i<$ndivs; $i++) {
301 <        my $imap = ($ndivs - 0.5 - $i) / $ndivs;
296 >    my $sheight = floor($legheight / $ndivs );
297 >    my $theight = floor($legwidth/(8/1.67));
298 >    my $stheight = $sheight <= $theight ? $sheight : $theight;
299 >    my $vlegheight = $sheight * $ndivs * (1+1.5/$ndivs);
300 >    my $text = "$label\n";
301 >    my $tslabpic = "$td/slabT.hdr";
302 >    open PSIGN, "| psign -s -.15 -cf 1 1 1 -cb 0 0 0 -h $stheight > $tslabpic";
303 >    print PSIGN "$text";
304 >    close PSIGN;
305 >    my $loop = $ndivs+$haszero;
306 >    my $hlegheight = $sheight * ($loop) + $sheight * .5;
307 >    my $pcompost = qq[pcompos -b 0 0 0 =-0 $tslabpic 0 $hlegheight ];
308 >    for (my $i=0; $i<$loop; $i++) {
309 >        my $imap = ($ndivs - $i) / $ndivs;
310          my $value = $scale;
311          if ($decades > 0) {
312              $value *= 10**(($imap - 1) * $decades);
313          } else {
314              $value *= $imap;
315          }
300
316          # Have no more than 3 decimal places
317 <        $value =~ s/(\.[0-9]{3})[0-9]*/$1/;
318 <        $text .= "\n$value";
317 >        $value =~ s/(\.[0-9]{$scaledigits})[0-9]*/$1/;
318 >        $text = "$value\n";
319 >        $tslabpic = "$td/slab$i.hdr";
320 >        open PSIGN, "| psign -s -.15 -cf 1 1 1 -cb 0 0 0 -h $stheight > $tslabpic";
321 >        print PSIGN "$text";
322 >        close PSIGN;
323 >        $hlegheight = $sheight * ($loop - $i - 1) + $sheight * .5;
324 >        $pcompost .= qq[=-0 $tslabpic 0 $hlegheight ];
325      }
326 <    open PSIGN, "| psign -s -.15 -cf 1 1 1 -cb 0 0 0 -h $sheight > $slabpic";
327 <    print PSIGN "$text\n";
307 <    close PSIGN;
326 >    $pcompost .= qq[ > $slabpic];
327 >    system $pcompost;
328  
329      # Legend: Create the background colours
330      $cmd = qq[pcomb $pc0args];
331 <    $cmd .= q[ -e "v=(y+.5)/yres;vleft=v;vright=v"];
332 <    $cmd .= q[ -e "vbelow=(y-.5)/yres;vabove=(y+1.5)/yres"];
333 <    $cmd .= qq[ -x $legwidth -y $legheight > $scolpic];
331 >    $cmd .= qq[ -e "v=(y+.5-$sheight)/(yres/(1+1.5/$ndivs));;vleft=v;vright=v"];
332 >    $cmd .= qq[ -e "vbelow=(y-.5-$sheight)/(yres/(1+1.5/$ndivs));vabove=(y+1.5-$sheight)/(yres/(1+1.5/$ndivs))"];
333 >    $cmd .= qq[ -e "ra=0;ga=0;ba=0;"];
334 >    $cmd .= qq[ -x $legwidth -y $vlegheight > $scolpic];
335      system $cmd;
336   } else {
337      # Create dummy colour scale and legend labels so we don't
# Line 328 | Line 349 | my $slabinvpic = "$td/slabinv.hdr";
349   $cmd = qq[pcomb -e "lo=1-gi(1)" $slabpic > $slabinvpic];
350   system $cmd;
351  
331 my $loff1 = $loff - 1;
352  
353 + my $sh0 = -floor($legheight / $ndivs / 2);
354 + if ($haszero < 1) {
355 +    $sh0 = -floor($legheight / ($ndivs)*1.5);
356 + }
357 +
358   # Command line without extrema
334 $cmd = qq[pcomb $pc0args $pc1args "$picture"];
335 $cmd .= qq[ "$cpict"] if ($cpict);
336 $cmd .= qq[ | pcompos $scolpic 0 0 +t .1 $slabinvpic 2 $loff1];
337 $cmd .= qq[ -t .5 $slabpic 0 $loff - $legwidth 0];
359  
360 +    $cmd = qq[pcomb $pc0args $pc1args "$picture"];
361 +    $cmd .= qq[ "$cpict"] if ($cpict);
362 +    $cmd .= qq[ | pcompos -b 0 0 0 $scolpic 0 $sh0 +t .1 $slabinvpic 2 -1 ];
363 +    $cmd .= qq[ -t .5 $slabpic 0 0 - $legwidth 0];
364 +
365   if ($doextrem == 1) {
366      # Get min/max image luminance
367      my $cmd1 = 'pextrem -o ' . $picture;
# Line 353 | Line 379 | if ($doextrem == 1) {
379      # Weighted average of R,G,B
380      my $minpos = "$lxmin $ymin";
381      my $minval = ($rmin * .27 + $gmin * .67 + $bmin * .06) * $mult;
382 <    $minval =~ s/(\.[0-9]{3})[0-9]*/$1/;
382 >    $minval =~ s/(\.[0-9]{$scaledigits})[0-9]*/$1/;
383      my $maxval = ($rmax * .27 + $gmax * .67 + $bmax * .06) * $mult;
384 <    $maxval =~ s/(\.[0-9]{3})[0-9]*/$1/;
384 >    $maxval =~ s/(\.[0-9]{$scaledigits})[0-9]*/$1/;
385  
386      # Create the labels for min/max intensity
387      my $minvpic = "$td/minv.hdr";
# Line 366 | Line 392 | if ($doextrem == 1) {
392      # Add extrema labels to command line
393      $cmd .= qq[ $minvpic $minpos $maxvpic $lxmax $ymax];
394   }
395 +
396 +
397 +
398  
399   # Process image and combine with legend
400   system "$cmd";

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