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#!/bin/csh -f |
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# RCSid: $Id: dayfact.csh,v 2.8 2008/08/25 04:50:32 greg Exp $ |
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# |
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# Interactive script to calculate daylight factors |
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# |
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set nofile="none" |
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set illumpic=$nofile |
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set octree=$nofile |
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set dfpict=$nofile |
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set ilpict=$nofile |
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set dspict=$nofile |
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set nodaysav=1 |
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set fcopts=($*) |
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set designlvl=500 |
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set wporig=(0 0 0) |
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set wpsize=(1 1) |
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set rtargs=(-ab 1 -ad 256 -as 128 -aa .15 -av .3 .3 .3) |
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set maxres=128 |
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set td=`mktemp -d /tmp/df.XXXXXX` |
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|
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alias readvar 'echo -n Enter \!:1 "[$\!:1]: ";set ans="$<";if("$ans" != "")set \!:1="$ans"' |
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|
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cat <<_EOF_ |
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DAYLIGHT FACTOR CALCULATION |
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|
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This script calculates daylight factors, illuminance levels, and/or |
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energy savings due to daylight on a rectangular workplane and produces |
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a contour plot from the result. The input is a Radiance scene description |
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(and octree) and the output is one or more color Radiance pictures. |
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|
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_EOF_ |
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echo "Have you already calculated an illuminance picture using dayfact?" |
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readvar illumpic |
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if ( $illumpic != $nofile ) then |
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if ( ! -r $illumpic ) then |
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echo "Cannot read $illumpic" |
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exit 1 |
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endif |
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set title=$illumpic:r |
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set gotillumpic |
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goto getgenskyf |
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endif |
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|
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readvar octree |
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if ( $octree == $nofile || ! -f $octree ) then |
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echo "You must first create an octree with" |
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echo "oconv before running this script." |
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exit 1 |
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endif |
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set title="$octree:r" |
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echo -n "Is the z-axis your zenith direction? " |
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if ( "$<" !~ [yY]* ) then |
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echo "I'm sorry, you cannot use this script" |
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exit 1 |
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endif |
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echo "What is the origin (smallest x y z coordinates) of the workplane?" |
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readvar wporig |
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set wporig=($wporig) |
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echo "What is the x and y size (width and length) of the workplane?" |
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readvar wpsize |
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set wpsize=($wpsize) |
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set wpres=(`rcalc -n -e '$1=if(l,'"floor($maxres*$wpsize[1]/$wpsize[2]),$maxres);"'$2=if(l,'"$maxres,floor($maxres*$wpsize[2]/$wpsize[1]));l=$wpsize[2]-$wpsize[1]"`) |
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set rtargs=($rtargs -ar `getinfo -d<$octree|rcalc -e '$1=floor(16*$4/'"($wpsize[1]+$wpsize[2]))"`) |
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echo "What calculation options do you want to give to rtrace?" |
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echo "(It is very important to set the -a* options correctly.)" |
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readvar rtargs |
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echo "Do you want to save the illuminance picture for later runs?" |
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readvar illumpic |
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############ |
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getgenskyf: |
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set genskyf=$nofile |
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echo "In what scene file is the gensky command located?" |
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readvar genskyf |
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if ( $genskyf == $nofile ) then |
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echo "You will not be able to compute daylight factors" |
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echo "or energy savings since there is no gensky file." |
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else |
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xform -e $genskyf > $td/gsf |
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grep '^# gensky ' $td/gsf |
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if ( $status ) then |
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echo "The file $genskyf does not contain a gensky command\!" |
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rm -f $td/gsf |
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goto getgenskyf |
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endif |
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set title=$title\ `sed -n 's/^# gensky *\([0-9][0-9]* *[0-9][0-9]* *[0-9][0-9.]*\).*$/\1/p' $td/gsf` |
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set extamb=`sed -n 's/^# Ground ambient level: //p' $td/gsf` |
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grep -s '^# gensky .* -c' $td/gsf |
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set nodaysav=$status |
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rm -f $td/gsf |
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if ( $nodaysav ) then |
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echo "The gensky command was not done for an overcast sky" |
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echo "(-c option), so energy savings cannot be calculated." |
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echo -n "Continue anyway? " |
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if ( "$<" =~ [nN]* ) then |
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exit 0 |
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endif |
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endif |
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endif |
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echo "Illuminance contour picture if you want one" |
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readvar ilpict |
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if ( $?extamb ) then |
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echo "Daylight factor contour picture if you want one" |
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readvar dfpict |
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endif |
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if ( ! $nodaysav ) then |
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echo "Energy savings contour picture if you want one" |
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readvar dspict |
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if ( $dspict != $nofile ) then |
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echo "Workplane design level (lux)" |
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readvar designlvl |
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endif |
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endif |
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if ( $ilpict == $nofile && $dfpict == $nofile && $dspict == $nofile ) then |
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echo "Since you don't want any output, I guess we're done." |
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exit 0 |
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endif |
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echo "Title for output picture" |
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readvar title |
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set sctemp=$td/sc.csh |
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cat <<'_EOF_' > $sctemp |
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if ( $illumpic != $nofile ) then |
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set iltemp="" |
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else |
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set iltemp=$td/il.hdr |
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set illumpic=$iltemp |
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endif |
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set tltemp=$td/tl.hdr |
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set dstemp=$td/ds.hdr |
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set temp1=$td/tfa |
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echo "Your dayfact job is finished." |
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echo "Please check for error messages below." |
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echo "" |
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set echo |
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if ( ! $?gotillumpic ) then |
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cnt $wpres[2] $wpres[1] \ |
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| rcalc -e '$1=($2+.5)/'"$wpres[1]*$wpsize[1]+$wporig[1]" \ |
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-e '$2=(1-($1+.5)/'"$wpres[2])*$wpsize[2]+$wporig[2]" \ |
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-e '$3='"$wporig[3]" -e '$4=0;$5=0;$6=1' \ |
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| rtrace $rtargs -h+ -I+ -ov -fac -x $wpres[1] -y $wpres[2] $octree \ |
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> $temp1 |
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pfilt -h 20 -n 0 -x 300 -y 300 -p 1 -r 1 $temp1 > $illumpic |
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endif |
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set maxval=`getinfo < $illumpic | rcalc -i 'EXPOSURE=${e}' -e '$1=3/e'` |
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if ("$maxval" == "") set maxval=3 |
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psign -h 42 " $title " | pfilt -1 -x /2 -y /2 > $tltemp |
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'_EOF_' |
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if ( $ilpict != $nofile ) then |
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echo 'falsecolor -cb -l Lux -s "$maxval*179" \\ |
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$fcopts -m 179 -ip $illumpic \\ |
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| pcompos -a 1 - $tltemp > $ilpict' >> $sctemp |
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endif |
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if ( $dfpict != $nofile ) then |
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echo 'falsecolor -cb -l DF -s 16 \\ |
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$fcopts -m "100/PI/$extamb" -ip $illumpic \\ |
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| pcompos -a 1 - $tltemp > $dfpict' >> $sctemp |
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endif |
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if ( $dspict != $nofile ) then |
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echo 'pcomb -e "lo=1-$designlvl/20000*3.1416*$extamb/li(1)" \\ |
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-o $illumpic | falsecolor -cb -l "%Save" -s 100 \\ |
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$fcopts -m 100 -p $illumpic \\ |
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| pcompos -a 1 - $tltemp > $dspict' >> $sctemp |
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endif |
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echo 'rm -r $td' >> $sctemp |
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(source $sctemp) |& mail `whoami` & |
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echo "Your job is started in the background." |
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echo "You will be notified by mail when it is done." |
