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# |
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use strict; |
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my @skycolor = (0.960, 1.004, 1.118); |
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my $mf = 4; |
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while ($#ARGV >= 0) { |
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if ("$ARGV[0]" eq "-c") { |
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@skycolor = @ARGV[1..3]; |
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shift @ARGV; shift @ARGV; shift @ARGV; |
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} elsif ("$ARGV[0]" eq "-m") { |
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$mf = $ARGV[1]; |
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shift @ARGV; |
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} |
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shift @ARGV; |
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} |
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my $rhcal = ' |
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DEGREE : PI/180; |
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x1 = .5; x2 = .5; |
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MF : 2^2; |
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alpha : 90/(MF*7 + .5); |
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tnaz(r) : select(r, 30, 30, 24, 24, 18, 12, 6); |
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rnaz(r) : if(r-(7*MF-.5), 1, MF*tnaz(floor((r+.5)/MF) + 1)); |
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RowMax : 7*MF + 1; |
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Rmax : raccum(RowMax); |
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Rfindrow(r, rem) : if(rem-rnaz(r)-.5, Rfindrow(r+1, rem-rnaz(r)), r); |
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Rrow = if(Rbin-(Rmax +.5), RowMax, Rfindrow(0, Rbin)); |
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Rrow = if(Rbin-(Rmax-.5), RowMax-1, Rfindrow(0, Rbin)); |
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Rcol = Rbin - raccum(Rrow) - 1; |
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Razi_width = 2*PI / rnaz(Rrow); |
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RAH : alpha*DEGREE; |
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Razi = if(Rbin-.5, (Rcol + x2 - .5)*Razi_width, 2*PI*x2); |
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Ralt = if(Rbin-.5, (Rrow + x1)*RAH, asin(2*x1-1)); |
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> |
Ralt = if(Rbin-.5, (Rrow + x1)*RAH, asin(-x1)); |
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Romega = if(.5-Rbin, 2*PI, if(Rmax-.5-Rbin, |
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Razi_width*(sin(RAH*(Rrow+1)) - sin(RAH*Rrow)), |
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2*PI*(1 - cos(RAH/2)) ) ); |
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Dy = cos(Razi)*cos_ralt; |
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Dz = sin(Ralt); |
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'; |
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< |
my $nbins = 2306; # This needs to be consistent with MF setting above |
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> |
my $nbins = `rcalc -n -e MF:$mf -e \'$rhcal\' -e \'\$1=Rmax+1\'`; |
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> |
chomp $nbins; |
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# Create octree for rtrace |
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my $octree = "/tmp/gtv$$.oct"; |
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open OCONV, "| oconv - > $octree"; |
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print OCONV "skyglow source sky 0 0 4 0 0 1 360\n"; |
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close OCONV; |
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# Run rtrace and average output for every 16 samples |
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< |
my $tregcommand = "cnt $nbins 16 | rcalc -of -e '$rhcal' " . |
86 |
> |
my $tregcommand = "cnt $nbins 16 | rcalc -of -e MF:$mf -e '$rhcal' " . |
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q{-e 'Rbin=$1;x1=rand(recno*.37-5.3);x2=rand(recno*-1.47+.86)' } . |
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q{-e '$1=0;$2=0;$3=0;$4=Dx;$5=Dy;$6=Dz' } . |
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"| rtrace -h -ff -ab 0 -w $octree | total -if3 -16 -m"; |
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my @bestdir; |
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if (@sundir) { |
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my $somega = ($sundir[3]/360)**2 * 3.141592654**3; |
96 |
< |
my $cmd = "cnt $nbins | rcalc -e '$rhcal' -e Rbin=recno " . |
96 |
> |
my $cmd = "cnt " . ($nbins-1) . |
97 |
> |
" | rcalc -e MF:$mf -e '$rhcal' -e Rbin=recno " . |
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"-e 'dot=Dx*$sundir[0] + Dy*$sundir[1] + Dz*$sundir[2]' " . |
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"-e 'cond=dot-.866' " . |
100 |
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q{-e '$1=if(1-dot,acos(dot),0);$2=Romega;$3=recno' }; |