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greg |
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#!/bin/csh -f |
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greg |
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# RCSid: $Id$ |
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greg |
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# |
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# Generate source description for window with venetian blinds. |
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# |
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# 1/11/88 Greg Ward |
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# |
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# Usage: genwindow shellfile |
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# |
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# Takes as input the following shell variables from file $1: |
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# |
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# worient Window orientation (degrees from south) |
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# wwidth Window width |
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# wheight Window height |
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# wtrans Window transmission |
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# bdepth Blind depth |
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# bspac Blind vertical spacing |
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# gap Gap between blinds and window |
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# brcurv Blind curvature radius (negative upward, zero none) |
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# bangle Blind inclination (degrees from horizontal, up and out) |
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# material Blind material type (metal or plastic) |
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# ucolor Blind up side color ("red green blue") |
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# uspec Blind up side specularity (0 to 1) |
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# urough Blind up side roughness (0 to .2) |
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# dcolor Blind down side color (opt) |
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# dspec Blind down side specularity (opt) |
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# drough Blind down side roughness (opt) |
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# lat Site latitude (degrees) |
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# long Site longitude (degrees) |
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# mer Site standard meridian (degrees) |
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# hour Hour (standard 24hr time) |
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# day Day (of month) |
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# month Month (of year) |
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# grefl Ground plane reflectance |
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# sky Sky conditions (sunny, clear, cloudy) |
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# nsources Number of sources to divide window |
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# |
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# Creates the following output files: |
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# |
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# stdout Window description for Radiance |
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# $1.d$$ Window output distribution |
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# |
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if ( $#argv != 1 ) then |
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echo Usage: $0 input |
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exit 1 |
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endif |
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# Set input and output files |
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set input = $1 |
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set distrib = $1.d$$ |
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set tmpdir = /tmp |
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set descrip = $tmpdir/gw$$.des |
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set distoct = $tmpdir/gw$$.oct |
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set skydesc = $tmpdir/gw$$.sky |
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set remove = ( $distoct $skydesc $descrip ) |
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set removerr = ( $remove $distrib ) |
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onintr error |
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# Set default values |
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set worient = 0. |
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set wtrans = ( .96 .96 .96 ) |
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set bdepth = 0.025 |
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set bspac = 0.0155 |
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set gap = 0. |
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set brcurv = 0. |
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set bangle = 0. |
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set material = plastic |
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set ucolor = ( 0.5 0.5 0.5 ) |
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set uspec = 0. |
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set urough = 0.05 |
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set lat = 37.8 |
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set long = 122 |
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set mer = 120 |
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set hour = 12 |
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set day = 21 |
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set month = 10 |
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set grefl = .2 |
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set sky = sunny |
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set nsources = 6 |
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# Get input |
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source $input |
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if ( $status ) goto error |
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# Create window |
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cat > $descrip <<_EOF_ |
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void glass clear_glass |
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0 |
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0 |
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3 $wtrans |
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clear_glass polygon window |
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0 |
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0 |
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12 |
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0 0 0 |
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0 0 $wheight |
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$wwidth 0 $wheight |
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$wwidth 0 0 |
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void $material blind_upmat |
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0 |
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0 |
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5 $ucolor $uspec $urough |
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_EOF_ |
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if ( $status ) goto error |
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# Blinds |
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genblinds blind_upmat blind_up $bdepth $wwidth $wheight \ |
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`ev "ceil($wheight/$bspac)"` $bangle -r $brcurv \ |
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| xform -t $gap -$wwidth 1e-4 -rz 90 >> $descrip |
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if ( $status ) goto error |
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if ( $?dcolor ) then |
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cat >> $descrip <<_EOF_ |
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void $material blind_dnmat |
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0 |
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0 |
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5 $dcolor $dspec $drough |
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_EOF_ |
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genblinds blind_dnmat blind_down $bdepth $wwidth $wheight \ |
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`ev "ceil($wheight/$bspac)"` $bangle -r $brcurv \ |
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| xform -t $gap -$wwidth 0 -rz 90 >> $descrip |
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if ( $status ) goto error |
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endif |
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# Make sky |
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switch ($sky) |
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case sun*: |
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set skysw = +s |
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breaksw |
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case clear: |
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set skysw = -s |
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breaksw |
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case cloud*: |
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set skysw = -c |
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breaksw |
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endsw |
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dosky: |
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gensky $month $day $hour $skysw -a $lat -o $long -m $mer -g $grefl \ |
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| xform -rz `ev "-($worient)"` > $skydesc |
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if ( $skysw == +s ) then |
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if ( `sed -n 13p $skydesc | rcalc -e '$1=if($3,-1,1)'` < 0 ) then |
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set skysw = -s |
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goto dosky |
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endif |
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endif |
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cat >> $skydesc <<_EOF_ |
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skyfunc glow skyglow |
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0 |
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0 |
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4 1 1 1 0 |
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skyglow source sky |
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0 |
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0 |
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4 0 -1 0 180 |
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_EOF_ |
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# Make distribution |
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oconv $skydesc $descrip > $distoct |
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if ( $status ) goto error |
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echo 2 5 85 9 0 340 18 > $distrib |
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makedist -h -d -x1 0 1 0 -x2 0 0 1 -x3 1 0 0 -alpha 5-85:10 -beta 0-340:20 \ |
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-tw $bspac -th $bspac -td `ev "2*($bdepth+$gap)"` \ |
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-tc `ev "$wwidth/2" "$bdepth+$gap" "$wheight/2"` \ |
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-ab 2 -aa .1 -ad 64 -as 64 \ |
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-x 16 -y 16 $distoct >> $distrib |
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if ( $status ) goto error |
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set wsgrid = (`ev "floor(sqrt($nsources*$wwidth/$wheight)+.5)" "floor(sqrt($nsources*$wheight/$wwidth)+.5)"`) |
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@ nsources = $wsgrid[1] * $wsgrid[2] |
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# Print header |
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cat <<_EOF_ |
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# |
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# Window with venetian blinds |
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# Created from $input `date` |
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# |
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# Window orientation (degrees from south): $worient |
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# Window height: $wheight |
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# Window width: $wwidth |
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# Window transmission: $wtrans |
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# Blind depth: $bdepth |
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# Blind spacing: $bspac |
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# Gap to window: $gap |
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# Blind curvature radius: $brcurv |
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# Blind inclination (degrees altitude): $bangle |
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# Blind material: $material |
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# Up side color: $ucolor |
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# Up side specularity: $uspec |
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# Up side roughness: $urough |
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_EOF_ |
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if ( $?dcolor ) then |
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cat <<_EOF_ |
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# Down side color: $dcolor |
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# Down side specularity: $dspec |
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# Down side roughness: $drough |
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_EOF_ |
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else |
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echo \#\ Down side same as up |
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endif |
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cat <<_EOF_ |
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# Latitude (degrees): $lat |
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# Longitude (degrees): $long |
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# Standard Meridian (degrees): $mer |
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# Month Day Hour: $month $day $hour |
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# Ground plane reflectance: $grefl |
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# Sky condition: $sky |
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# Number of window sources: $nsources |
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# |
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_EOF_ |
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# Send sources |
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xform -e -rz $worient <<_EOF_ |
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void brightdata wdistrib |
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10 noop $distrib source.cal src_theta src_phi -rx 90 -ry -90 -mx |
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0 |
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0 |
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wdistrib illum willum |
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0 |
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0 |
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3 1 1 1 |
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!gensurf willum wsource "$wwidth*t" $bdepth "$wheight*s" $wsgrid[2] $wsgrid[1] |
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_EOF_ |
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if ( $status ) goto error |
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# Send window |
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xform -rz $worient $descrip |
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if ( $status ) goto error |
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# All done, print and exit |
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rm -f $remove |
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exit 0 |
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# Error exit |
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error: |
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rm -f $removerr |
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exit 1 |
