1 |
#!/bin/csh -f |
2 |
# SCCSid "$SunId$ LBL" |
3 |
# |
4 |
# Interactive script to calculate daylight factors |
5 |
# |
6 |
set nofile="none" |
7 |
set genskyf=$nofile |
8 |
set octree=$nofile |
9 |
set dfpict=$nofile |
10 |
set ilpict=$nofile |
11 |
set wporig=(0 0 0) |
12 |
set wpsize=(1 1) |
13 |
set rtargs=(-ab 1 -ad 256 -as 128 -aa .15 -av .1 .1 .1) |
14 |
|
15 |
set maxres=128 |
16 |
set iltemp=/usr/tmp/il$$.pic |
17 |
set tempfiles=($iltemp) |
18 |
|
19 |
alias readvar 'echo -n Enter \!:1 "[$\!:1]: ";set ans="$<";if("$ans" != "")set \!:1="$ans"' |
20 |
|
21 |
onintr quit |
22 |
|
23 |
cat <<_EOF_ |
24 |
DAYLIGHT FACTOR CALCULATION |
25 |
|
26 |
This script calculates daylight factors and/or illuminance levels on a |
27 |
rectangular workplane and produces a contour plot from the result. The |
28 |
input is a Radiance scene description (and octree) and the output is one |
29 |
or more color Radiance pictures. |
30 |
|
31 |
_EOF_ |
32 |
readvar octree |
33 |
if ( "$octree" == "$nofile" || ! -f "$octree" ) then |
34 |
echo "You must first create an octree with oconv" |
35 |
echo "before running this script." |
36 |
exit 1 |
37 |
endif |
38 |
echo "In what scene file is the gensky command located?" |
39 |
readvar genskyf |
40 |
if ( "$genskyf" == "$nofile" || ! -r "$genskyf" ) then |
41 |
echo "You will not be able to compute" |
42 |
echo "daylight factors without a gensky file" |
43 |
else |
44 |
set extamb=`xform -e $genskyf|sed -n 's/^# Ground ambient level: //p'` |
45 |
endif |
46 |
echo -n "Is the z-axis your zenith direction? " |
47 |
if ( "$<" !~ [yY]* ) then |
48 |
echo "I'm sorry, you cannot use this script" |
49 |
exit 1 |
50 |
endif |
51 |
echo "What is the origin (smallest x y z coordinates) of the workplane?" |
52 |
readvar wporig |
53 |
set wporig=($wporig) |
54 |
echo "What is the x and y size (width and length) of the workplane?" |
55 |
readvar wpsize |
56 |
set wpsize=($wpsize) |
57 |
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]-$wpsize[1]"`) |
58 |
set rtargs=($rtargs -ar `getinfo -d<$octree|rcalc -e '$1=floor(16*$4/'"($wpsize[1]+$wpsize[2]))"`) |
59 |
echo "What calculation options do you want to give to rtrace?" |
60 |
echo "(It is very important to set the -a? options correctly.)" |
61 |
readvar rtargs |
62 |
echo "Illuminance contour picture if you want one" |
63 |
readvar ilpict |
64 |
if ( $?extamb ) then |
65 |
echo "Daylight factor contour picture if you want one" |
66 |
readvar dfpict |
67 |
endif |
68 |
if ( "$ilpict" == "$nofile" && "$dfpict" == "$nofile" ) then |
69 |
echo "Since you don't want any output, I guess we're done." |
70 |
exit 0 |
71 |
endif |
72 |
echo "Starting rtrace calculation -- this will take some time..." |
73 |
cnt $wpres[2] $wpres[1] \ |
74 |
| rcalc -e '$1=($2+.5)/'"$wpres[1]*$wpsize[1]+$wporig[1]" \ |
75 |
-e '$2=(1-($1+.5)/'"$wpres[2])*$wpsize[2]+$wporig[2]" \ |
76 |
-e '$3='"$wporig[3]" -e '$4=0;$5=0;$6=1' \ |
77 |
| rtrace $rtargs -I -ov -faf $octree \ |
78 |
| pvalue -r -x $wpres[1] -y $wpres[2] -df \ |
79 |
| pfilt -h 20 -n 0 -x 350 -y 350 -p 1 -r 1 > $iltemp |
80 |
set maxval=`getinfo < $iltemp | rcalc -i 'EXPOSURE=${e}' -e '$1=3/e'` |
81 |
if ( "$ilpict" != "$nofile" ) then |
82 |
echo "Making illuminance contour picture $ilpict..." |
83 |
falsecolor -s "$maxval*470" -m 470 -l Lux -cb -pi $iltemp > $ilpict |
84 |
endif |
85 |
if ( "$dfpict" != "$nofile" ) then |
86 |
echo "Making daylight factor contour picture $dfpict..." |
87 |
falsecolor -s "$maxval/$extamb" -m "1/$extamb" -l DF \ |
88 |
-cb -pi $iltemp > $dfpict |
89 |
endif |
90 |
echo "Done." |
91 |
quit: |
92 |
rm -f $tempfiles |