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# |
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use strict; |
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sub userror { |
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< |
print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-dim xmin xmax ymin ymax zmin zmax][{+|-}mgf][{+|-}geom] [input ..]"; |
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print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-dim xmin xmax ymin ymax zmin zmax][{+|-}mgf][{+|-}geom] [input ..]\n"; |
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exit 1; |
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} |
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my $td = `mktemp -d /tmp/genBSDF.XXXXXX`; |
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my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + .5); |
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my $ny = int($nsamp/$nx + .5); |
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$nsamp = $nx * $ny; |
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# Compute scattering data using rtcontrib |
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my $cmd = "cnt $ndiv $ny $nx | rcalc -of -e '$tcal' " . |
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"-e 'xp=(\$3+rand(.35*recno-15))*(($dim[1]-$dim[0])/$nx)+$dim[0]' " . |
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"-e 'yp=(\$2+rand(.86*recno+11))*(($dim[3]-$dim[2])/$ny)+$dim[2]' " . |
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"-e 'zp:$dim[4]-1e-5' " . |
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q{-e 'Kbin=$1;x1=rand(1.21*recno+2.75);x2=rand(-3.55*recno-7.57)' } . |
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q{-e '$1=xp;$2=yp;$3=zp;$4=Dx;$5=Dy;$6=Dz' } . |
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"| rtcontrib -h -ff -n $nproc -c $nsamp -e '$kcal' -b kbin -bn $ndiv " . |
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"-m $modnm -w -ab 5 -ad 700 -lw 3e-6 $octree " . |
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"| rcalc -e 'x1:.5;x2:.5;$tcal' -e 'Kbin=floor((recno-1)/$ndiv)' " . |
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q{-if3 -e '$1=(0.265*$1+0.670*$2+0.065*$3)/(Komega*Dz)'}; |
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my @darr = `$cmd`; |
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die "Failure running: $cmd\n" if ( $? ); |
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# Output XML prologue |
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print |
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'<?xml version="1.0" encoding="UTF-8"?> |
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<ScatteringDataType>BTDF</ScatteringDataType> |
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<ScatteringData> |
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'; |
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< |
# Compute actual scattering data using rtcontrib |
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system "cnt $ndiv $ny $nx | rcalc -of -e '$tcal' " . |
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"-e 'xp=(\$3+rand(.35*recno-15))*(($dim[1]-$dim[0])/$nx)+$dim[0]' " . |
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< |
"-e 'yp=(\$2+rand(.86*recno+11))*(($dim[3]-$dim[2])/$ny)+$dim[2]' " . |
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< |
"-e 'zp:$dim[4]-1e-5' " . |
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q{-e 'Kbin=$1;x1=rand(1.21*recno+2.75);x2=rand(-3.55*recno-7.57)' } . |
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q{-e '$1=xp;$2=yp;$3=zp;$4=Dx;$5=Dy;$6=Dz' } . |
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"| rtcontrib -h -ff -n $nproc -c $nsamp -e '$kcal' -b kbin -bn $ndiv " . |
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"-m $modnm -w -ab 5 -ad 700 -lw 3e-6 $octree " . |
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< |
"| rcalc -e 'x1:.5;x2:.5;$tcal' -e 'Kbin=floor((recno-1)/$ndiv)' " . |
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q{-if3 -e '$1=(0.265*$1+0.670*$2+0.065*$3)/(Komega*Dz)'}; |
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> |
# Output computed data (transposed order) |
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> |
for (my $od = 0; $od < $ndiv; $od++) { |
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> |
for (my $id = 0; $id < $ndiv; $id++) { |
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> |
print $darr[$ndiv*$id + $od]; |
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} |
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print "\n"; |
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} |
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# Output XML epilogue |
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print |
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' </ScatteringData> |