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root/radiance/ray/src/px/falsecolor.csh
Revision: 2.20
Committed: Wed May 27 15:38:29 2009 UTC (14 years, 11 months ago) by greg
Content type: application/x-csh
Branch: MAIN
CVS Tags: rad4R0
Changes since 2.19: +8 -4 lines
Log Message:
Aesthetic improvements to color scale code.

File Contents

# Content
1 #!/bin/csh -fe
2 # RCSid: $Id: falsecolor.csh,v 2.19 2008/11/10 19:08:19 greg Exp $
3 #
4 # Create false color image with legend
5 #
6 # Added user-definable legend 2004/01/20 Rob Guglielmetti
7
8 onintr quit
9 set td=`mktemp -d /tmp/fc.XXXXXX`
10 set mult=179
11 set label=Nits
12 set scale=1000
13 set decades=0
14 set redv='def_red(v)'
15 set grnv='def_grn(v)'
16 set bluv='def_blu(v)'
17 set ndivs=8
18 set picture='-'
19 set cpict=
20 set loff=0
21 set legwidth=100
22 set legheight=200
23 while ($#argv > 0)
24 switch ($argv[1])
25 case -lw:
26 shift argv
27 set legwidth="$argv[1]"
28 breaksw
29 case -lh:
30 shift argv
31 set legheight="$argv[1]"
32 breaksw
33 case -m:
34 shift argv
35 set mult="$argv[1]"
36 breaksw
37 case -s:
38 shift argv
39 set scale="$argv[1]"
40 if ("$scale" =~ [aA]*) set needfile
41 breaksw
42 case -l:
43 shift argv
44 set label="$argv[1]"
45 breaksw
46 case -log:
47 shift argv
48 set decades=$argv[1]
49 breaksw
50 case -r:
51 shift argv
52 set redv="$argv[1]"
53 breaksw
54 case -g:
55 shift argv
56 set grnv="$argv[1]"
57 breaksw
58 case -b:
59 shift argv
60 set bluv="$argv[1]"
61 breaksw
62 case -spec:
63 set redv='old_red(v)'
64 set grnv='old_grn(v)'
65 set bluv='old_blu(v)'
66 breaksw
67 case -i:
68 shift argv
69 set picture="$argv[1]"
70 breaksw
71 case -p:
72 shift argv
73 set cpict="$argv[1]"
74 breaksw
75 case -ip:
76 case -pi:
77 shift argv
78 set picture="$argv[1]"
79 set cpict="$argv[1]"
80 breaksw
81 case -cl:
82 set docont=a
83 set loff=12
84 breaksw
85 case -cb:
86 set docont=b
87 set loff=13
88 breaksw
89 case -e:
90 set doextrem
91 set needfile
92 breaksw
93 case -n:
94 shift argv
95 set ndivs="$argv[1]"
96 breaksw
97 default:
98 echo bad option "'$argv[1]'"
99 exit 1
100 endsw
101 shift argv
102 end
103 if ($?needfile && "$picture" == '-') then
104 cat > $td/picture
105 set picture=$td/picture
106 endif
107 if ("$scale" =~ [aA]*) then
108 set LogLmax=`phisto $picture | tail -2 | sed -n '1s/ [0-9]*$//p'`
109 set scale=`ev "$mult/179*10^$LogLmax"`
110 endif
111 cat > $td/pc0.cal <<_EOF_
112 PI : 3.14159265358979323846 ;
113 scale : $scale ;
114 mult : $mult ;
115 ndivs : $ndivs ;
116
117 or(a,b) : if(a,a,b);
118 EPS : 1e-7;
119 neq(a,b) : if(a-b-EPS,1,b-a-EPS);
120 btwn(a,x,b) : if(a-x,-1,b-x);
121 clip(x) : if(x-1,1,if(x,x,0));
122 frac(x) : x - floor(x);
123 boundary(a,b) : neq(floor(ndivs*a+.5),floor(ndivs*b+.5));
124
125 old_red(x) = 1.6*x - .6;
126 old_grn(x) = if(x-.375, 1.6-1.6*x, 8/3*x);
127 old_blu(x) = 1 - 8/3*x;
128
129 interp_arr2(i,x,f):(i+1-x)*f(i)+(x-i)*f(i+1);
130 interp_arr(x,f):if(x-1,if(f(0)-x,interp_arr2(floor(x),x,f),f(f(0))),f(1));
131 def_redp(i):select(i,0.18848,0.05468174,
132 0.00103547,8.311144e-08,7.449763e-06,0.0004390987,0.001367254,
133 0.003076,0.01376382,0.06170773,0.1739422,0.2881156,0.3299725,
134 0.3552663,0.372552,0.3921184,0.4363976,0.6102754,0.7757267,
135 0.9087369,1,1,0.9863);
136 def_red(x):interp_arr(x/0.0454545+1,def_redp);
137 def_grnp(i):select(i,0.0009766,2.35501e-05,
138 0.0008966244,0.0264977,0.1256843,0.2865799,0.4247083,0.4739468,
139 0.4402732,0.3671876,0.2629843,0.1725325,0.1206819,0.07316644,
140 0.03761026,0.01612362,0.004773749,6.830967e-06,0.00803605,
141 0.1008085,0.3106831,0.6447838,0.9707);
142 def_grn(x):interp_arr(x/0.0454545+1,def_grnp);
143 def_blup(i):select(i,0.2666,0.3638662,0.4770437,
144 0.5131397,0.5363797,0.5193677,0.4085123,0.1702815,0.05314236,
145 0.05194055,0.08564082,0.09881395,0.08324373,0.06072902,
146 0.0391076,0.02315354,0.01284458,0.005184709,0.001691774,
147 2.432735e-05,1.212949e-05,0.006659406,0.02539);
148 def_blu(x):interp_arr(x/0.0454545+1,def_blup);
149
150 isconta = if(btwn(0,v,1),or(boundary(vleft,vright),boundary(vabove,vbelow)),-1);
151 iscontb = if(btwn(0,v,1),btwn(.4,frac(ndivs*v),.6),-1);
152
153 ra = 0;
154 ga = 0;
155 ba = 0;
156
157 in = 1;
158
159 ro = if(in,clip($redv),ra);
160 go = if(in,clip($grnv),ga);
161 bo = if(in,clip($bluv),ba);
162 _EOF_
163 cat > $td/pc1.cal <<_EOF_
164 norm : mult/scale/le(1);
165
166 v = map(li(1)*norm);
167
168 vleft = map(li(1,-1,0)*norm);
169 vright = map(li(1,1,0)*norm);
170 vabove = map(li(1,0,1)*norm);
171 vbelow = map(li(1,0,-1)*norm);
172
173 map(x) = x;
174
175 ra = ri(nfiles);
176 ga = gi(nfiles);
177 ba = bi(nfiles);
178 _EOF_
179 set pc0args=(-f $td/pc0.cal)
180 set pc1args=(-f $td/pc1.cal)
181 if ($?docont) then
182 set pc0args=($pc0args -e "in=iscont$docont")
183 endif
184 if ("$cpict" == "") then
185 set pc1args=($pc1args -e 'ra=0;ga=0;ba=0')
186 else if ("$cpict" == "$picture") then
187 set cpict=
188 endif
189 if ("$decades" != "0") then
190 set pc1args=($pc1args -e "map(x)=if(x-10^-$decades,log10(x)/$decades+1,0)")
191 set imap="imap(y)=10^((y-1)*$decades)"
192 else
193 set imap="imap(y)=y"
194 endif
195 if ( $legwidth > 20 && $legheight > 40 ) then
196 pcomb $pc0args -e 'v=(y+.5)/yres;vleft=v;vright=v' \
197 -e 'vbelow=(y-.5)/yres;vabove=(y+1.5)/yres' \
198 -x $legwidth -y $legheight > $td/scol.hdr
199 ( echo "$label"; cnt $ndivs \
200 | rcalc -e '$1='"($scale)*imap(($ndivs-.5-"'$1'")/$ndivs)" \
201 -e "$imap" | sed -e 's/\(\.[0-9][0-9][0-9]\)[0-9]*/\1/' ) \
202 | psign -s -.15 -cf 1 1 1 -cb 0 0 0 \
203 -h `ev "floor($legheight/$ndivs+.5)"` > $td/slab.hdr
204 else
205 set legwidth=0
206 set legheight=0
207 (echo "" ; echo "-Y 1 +X 1" ; echo "aaa" ) > $td/scol.hdr
208 cp $td/scol.hdr $td/slab.hdr
209 endif
210 if ( $?doextrem ) then
211 pextrem -o $picture > $td/extrema
212 set minpos=`sed 2d $td/extrema | rcalc -e '$2=$2;$1=$1+'"$legwidth"`
213 set minval=`rcalc -e '$1=($3*.27+$4*.67+$5*.06)*'"$mult" $td/extrema | sed -e 2d -e 's/\(\.[0-9][0-9][0-9]\)[0-9]*/\1/'`
214 set maxpos=`sed 1d $td/extrema | rcalc -e '$2=$2;$1=$1+'"$legwidth"`
215 set maxval=`rcalc -e '$1=($3*.27+$4*.67+$5*.06)*'"$mult" $td/extrema | sed -e 1d -e 's/\(\.[0-9][0-9][0-9]\)[0-9]*/\1/'`
216 psign -s -.15 -a 2 -h 16 $minval > $td/minv.hdr
217 psign -s -.15 -a 2 -h 16 $maxval > $td/maxv.hdr
218 pcomb $pc0args $pc1args $picture $cpict \
219 | pcompos $td/scol.hdr 0 0 \
220 +t .1 "\!pcomb -e 'lo=1-gi(1)' $td/slab.hdr" \
221 `ev 2 $loff-1` -t .5 $td/slab.hdr 0 $loff \
222 - $legwidth 0 $td/minv.hdr $minpos $td/maxv.hdr $maxpos
223 else
224 pcomb $pc0args $pc1args $picture $cpict \
225 | pcompos $td/scol.hdr 0 0 \
226 +t .1 "\!pcomb -e 'lo=1-gi(1)' $td/slab.hdr" \
227 `ev 2 $loff-1` -t .5 $td/slab.hdr 0 $loff \
228 - $legwidth 0
229 endif
230 quit:
231 rm -rf $td