1 |
greg |
1.1 |
/* Copyright (c) 1987 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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* rv2.c - command routines used in tracing a view. |
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* |
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* 3/24/87 |
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*/ |
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#include "ray.h" |
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#include "octree.h" |
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#include "otypes.h" |
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#include "rpaint.h" |
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#include <ctype.h> |
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#define CTRL(c) ('c'-'@') |
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extern char *progname; |
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getframe(s) /* get a new frame */ |
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char *s; |
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{ |
31 |
greg |
1.12 |
if (getrect(s, &pframe) < 0) |
32 |
greg |
1.1 |
return; |
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pdepth = 0; |
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} |
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greg |
1.12 |
getrepaint(s) /* get area and repaint */ |
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char *s; |
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{ |
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RECT box; |
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if (getrect(s, &box) < 0) |
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return; |
44 |
greg |
1.14 |
paintrect(&ptrunk, 0, 0, hresolu, vresolu, &box); |
45 |
greg |
1.12 |
} |
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48 |
greg |
1.1 |
getview(s) /* get/show view parameters */ |
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char *s; |
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{ |
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FILE *fp; |
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char buf[128]; |
53 |
greg |
1.10 |
char *fname; |
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greg |
1.3 |
int change = 0; |
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greg |
1.1 |
VIEW nv; |
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if (sscanf(s, "%s", buf) == 1) { /* write parameters to a file */ |
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greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
59 |
greg |
1.1 |
(fp = fopen(fname, "a")) == NULL) { |
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sprintf(errmsg, "cannot open \"%s\"", buf); |
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error(COMMAND, errmsg); |
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return; |
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} |
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greg |
1.2 |
fputs(progname, fp); |
65 |
greg |
1.1 |
fprintview(&ourview, fp); |
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greg |
1.19 |
fputs(sskip(s), fp); |
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greg |
1.1 |
fputs("\n", fp); |
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fclose(fp); |
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return; |
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} |
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sprintf(buf, "view type (%c): ", ourview.type); |
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(*dev->comout)(buf); |
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greg |
1.18 |
(*dev->comin)(buf, NULL); |
74 |
greg |
1.1 |
if (buf[0] == CTRL(C)) return; |
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greg |
1.3 |
if (buf[0] && buf[0] != ourview.type) { |
76 |
greg |
1.1 |
nv.type = buf[0]; |
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greg |
1.3 |
change++; |
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} else |
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greg |
1.1 |
nv.type = ourview.type; |
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sprintf(buf, "view point (%.6g %.6g %.6g): ", |
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ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
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(*dev->comout)(buf); |
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greg |
1.18 |
(*dev->comin)(buf, NULL); |
84 |
greg |
1.1 |
if (buf[0] == CTRL(C)) return; |
85 |
greg |
1.3 |
if (sscanf(buf, "%lf %lf %lf", &nv.vp[0], &nv.vp[1], &nv.vp[2]) == 3) |
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change++; |
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else |
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greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
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sprintf(buf, "view direction (%.6g %.6g %.6g): ", |
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ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]); |
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(*dev->comout)(buf); |
92 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
93 |
greg |
1.1 |
if (buf[0] == CTRL(C)) return; |
94 |
greg |
1.3 |
if (sscanf(buf,"%lf %lf %lf",&nv.vdir[0],&nv.vdir[1],&nv.vdir[2]) == 3) |
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change++; |
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else |
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greg |
1.1 |
VCOPY(nv.vdir, ourview.vdir); |
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sprintf(buf, "view up (%.6g %.6g %.6g): ", |
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ourview.vup[0], ourview.vup[1], ourview.vup[2]); |
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(*dev->comout)(buf); |
101 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
102 |
greg |
1.1 |
if (buf[0] == CTRL(C)) return; |
103 |
greg |
1.3 |
if (sscanf(buf,"%lf %lf %lf",&nv.vup[0],&nv.vup[1],&nv.vup[2]) == 3) |
104 |
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change++; |
105 |
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else |
106 |
greg |
1.1 |
VCOPY(nv.vup, ourview.vup); |
107 |
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sprintf(buf, "view horiz and vert size (%.6g %.6g): ", |
108 |
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ourview.horiz, ourview.vert); |
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(*dev->comout)(buf); |
110 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
111 |
greg |
1.1 |
if (buf[0] == CTRL(C)) return; |
112 |
greg |
1.3 |
if (sscanf(buf, "%lf %lf", &nv.horiz, &nv.vert) == 2) |
113 |
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change++; |
114 |
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else { |
115 |
greg |
1.1 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
116 |
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} |
117 |
greg |
1.14 |
sprintf(buf, "view shift and lift (%.6g %.6g): ", |
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ourview.hoff, ourview.voff); |
119 |
greg |
1.1 |
(*dev->comout)(buf); |
120 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
121 |
greg |
1.1 |
if (buf[0] == CTRL(C)) return; |
122 |
greg |
1.14 |
if (sscanf(buf, "%lf %lf", &nv.hoff, &nv.voff) == 2) |
123 |
greg |
1.3 |
change++; |
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else { |
125 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
126 |
greg |
1.1 |
} |
127 |
greg |
1.3 |
if (change) |
128 |
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newview(&nv); |
129 |
greg |
1.1 |
} |
130 |
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131 |
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132 |
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lastview(s) /* return to a previous view */ |
133 |
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char *s; |
134 |
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{ |
135 |
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char buf[128]; |
136 |
greg |
1.10 |
char *fname; |
137 |
greg |
1.1 |
int success; |
138 |
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VIEW nv; |
139 |
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140 |
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if (sscanf(s, "%s", buf) == 1) { /* get parameters from a file */ |
141 |
greg |
1.17 |
copystruct(&nv, &stdview); |
142 |
greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
143 |
greg |
1.16 |
(success = viewfile(fname, &nv, 0, 0)) == -1) { |
144 |
greg |
1.1 |
sprintf(errmsg, "cannot open \"%s\"", buf); |
145 |
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error(COMMAND, errmsg); |
146 |
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return; |
147 |
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} |
148 |
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if (!success) |
149 |
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error(COMMAND, "wrong file format"); |
150 |
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else |
151 |
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newview(&nv); |
152 |
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return; |
153 |
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} |
154 |
greg |
1.20 |
if (oldview.type == 0) { /* no old view! */ |
155 |
greg |
1.1 |
error(COMMAND, "no previous view"); |
156 |
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return; |
157 |
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} |
158 |
greg |
1.17 |
copystruct(&nv, &ourview); |
159 |
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copystruct(&ourview, &oldview); |
160 |
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copystruct(&oldview, &nv); |
161 |
greg |
1.1 |
newimage(); |
162 |
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} |
163 |
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164 |
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165 |
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getaim(s) /* aim camera */ |
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char *s; |
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{ |
168 |
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extern double tan(), atan(); |
169 |
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double zfact; |
170 |
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VIEW nv; |
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172 |
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if (getinterest(s, 1, nv.vdir, &zfact) < 0) |
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return; |
174 |
greg |
1.21 |
nv.type = ourview.type; |
175 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
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VCOPY(nv.vup, ourview.vup); |
177 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
178 |
greg |
1.21 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
179 |
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zoomview(&nv, zfact); |
180 |
greg |
1.1 |
newview(&nv); |
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} |
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183 |
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184 |
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getmove(s) /* move camera */ |
185 |
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char *s; |
186 |
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{ |
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FVECT vc; |
188 |
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double mag; |
189 |
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190 |
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if (getinterest(s, 0, vc, &mag) < 0) |
191 |
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return; |
192 |
greg |
1.4 |
moveview(0.0, 0.0, mag, vc); |
193 |
greg |
1.1 |
} |
194 |
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195 |
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196 |
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getrotate(s) /* rotate camera */ |
197 |
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char *s; |
198 |
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{ |
199 |
greg |
1.4 |
extern double normalize(), tan(), atan(); |
200 |
greg |
1.1 |
VIEW nv; |
201 |
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FVECT v1; |
202 |
greg |
1.4 |
double angle, elev, zfact; |
203 |
greg |
1.1 |
|
204 |
greg |
1.4 |
elev = 0.0; zfact = 1.0; |
205 |
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if (sscanf(s, "%lf %lf %lf", &angle, &elev, &zfact) < 1) { |
206 |
greg |
1.1 |
error(COMMAND, "missing angle"); |
207 |
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return; |
208 |
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} |
209 |
greg |
1.21 |
nv.type = ourview.type; |
210 |
greg |
1.1 |
VCOPY(nv.vp, ourview.vp); |
211 |
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VCOPY(nv.vup, ourview.vup); |
212 |
greg |
1.14 |
nv.hoff = ourview.hoff; nv.voff = ourview.voff; |
213 |
greg |
1.1 |
spinvector(nv.vdir, ourview.vdir, ourview.vup, angle*(PI/180.)); |
214 |
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if (elev != 0.0) { |
215 |
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fcross(v1, nv.vdir, ourview.vup); |
216 |
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normalize(v1); |
217 |
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spinvector(nv.vdir, nv.vdir, v1, elev*(PI/180.)); |
218 |
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} |
219 |
greg |
1.21 |
nv.horiz = ourview.horiz; nv.vert = ourview.vert; |
220 |
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zoomview(&nv, zfact); |
221 |
greg |
1.1 |
newview(&nv); |
222 |
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} |
223 |
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224 |
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225 |
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getpivot(s) /* pivot viewpoint */ |
226 |
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register char *s; |
227 |
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{ |
228 |
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FVECT vc; |
229 |
greg |
1.4 |
double angle, elev, mag; |
230 |
greg |
1.1 |
|
231 |
greg |
1.4 |
elev = 0.0; |
232 |
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if (sscanf(s, "%lf %lf", &angle, &elev) < 1) { |
233 |
greg |
1.1 |
error(COMMAND, "missing angle"); |
234 |
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return; |
235 |
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} |
236 |
greg |
1.4 |
if (getinterest(sskip(sskip(s)), 0, vc, &mag) < 0) |
237 |
greg |
1.1 |
return; |
238 |
greg |
1.4 |
moveview(angle, elev, mag, vc); |
239 |
greg |
1.1 |
} |
240 |
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241 |
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242 |
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getexposure(s) /* get new exposure */ |
243 |
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char *s; |
244 |
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{ |
245 |
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double atof(), pow(), fabs(); |
246 |
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char buf[128]; |
247 |
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register char *cp; |
248 |
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register PNODE *p; |
249 |
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RECT r; |
250 |
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int x, y; |
251 |
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double e; |
252 |
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253 |
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for (cp = s; isspace(*cp); cp++) |
254 |
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; |
255 |
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if (*cp == '\0') { /* normalize to point */ |
256 |
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if (dev->getcur == NULL) |
257 |
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return; |
258 |
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(*dev->comout)("Pick point for exposure\n"); |
259 |
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if ((*dev->getcur)(&x, &y) == ABORT) |
260 |
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return; |
261 |
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r.l = r.d = 0; |
262 |
greg |
1.14 |
r.r = hresolu; r.u = vresolu; |
263 |
greg |
1.1 |
p = findrect(x, y, &ptrunk, &r, -1); |
264 |
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e = 1.0; |
265 |
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} else { |
266 |
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if (*cp == '=') { /* absolute setting */ |
267 |
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p = NULL; |
268 |
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e = 1.0/exposure; |
269 |
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for (cp++; isspace(*cp); cp++) |
270 |
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; |
271 |
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if (*cp == '\0') { /* interactive */ |
272 |
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sprintf(buf, "exposure (%lf): ", exposure); |
273 |
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(*dev->comout)(buf); |
274 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
275 |
greg |
1.1 |
for (cp = buf; isspace(*cp); cp++) |
276 |
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; |
277 |
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if (*cp == '\0') |
278 |
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return; |
279 |
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} |
280 |
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} else { /* normalize to average */ |
281 |
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p = &ptrunk; |
282 |
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e = 1.0; |
283 |
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} |
284 |
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if (*cp == '+' || *cp == '-') /* f-stops */ |
285 |
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e *= pow(2.0, atof(cp)); |
286 |
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else /* multiplier */ |
287 |
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e *= atof(cp); |
288 |
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} |
289 |
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if (p != NULL) { /* relative setting */ |
290 |
greg |
1.6 |
if (bright(p->v) <= FTINY) { |
291 |
greg |
1.1 |
error(COMMAND, "cannot normalize to zero"); |
292 |
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return; |
293 |
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} |
294 |
greg |
1.6 |
e *= 0.5 / bright(p->v); |
295 |
greg |
1.1 |
} |
296 |
|
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if (e <= FTINY || fabs(1.0 - e) <= FTINY) |
297 |
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return; |
298 |
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scalepict(&ptrunk, e); |
299 |
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exposure *= e; |
300 |
|
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redraw(); |
301 |
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} |
302 |
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|
303 |
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|
304 |
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setparam(s) /* get/set program parameter */ |
305 |
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register char *s; |
306 |
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{ |
307 |
|
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extern int psample; |
308 |
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extern double maxdiff; |
309 |
|
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extern double minweight; |
310 |
|
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extern int maxdepth; |
311 |
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extern double dstrsrc; |
312 |
greg |
1.5 |
extern double shadthresh; |
313 |
greg |
1.9 |
extern double shadcert; |
314 |
greg |
1.1 |
extern COLOR ambval; |
315 |
|
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extern double ambacc; |
316 |
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extern double minarad; |
317 |
|
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extern int ambres; |
318 |
|
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extern int ambdiv; |
319 |
|
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extern int ambssamp; |
320 |
|
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extern int ambounce; |
321 |
|
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int i0; |
322 |
|
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double d0, d1, d2; |
323 |
|
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char buf[128]; |
324 |
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|
325 |
|
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if (s[0] == '\0') { |
326 |
greg |
1.9 |
(*dev->comout)("aa ab ad ar as av dc dj dt lr lw sp st: "); |
327 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
328 |
greg |
1.1 |
s = buf; |
329 |
|
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} |
330 |
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switch (s[0]) { |
331 |
|
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case 'l': /* limit */ |
332 |
|
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switch (s[1]) { |
333 |
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case 'w': /* weight */ |
334 |
|
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if (sscanf(s+2, "%lf", &d0) != 1) { |
335 |
|
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sprintf(buf, "limit weight (%.6g): ", |
336 |
|
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minweight); |
337 |
|
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(*dev->comout)(buf); |
338 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
339 |
greg |
1.1 |
if (sscanf(buf, "%lf", &d0) != 1) |
340 |
|
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break; |
341 |
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} |
342 |
|
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minweight = d0; |
343 |
|
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break; |
344 |
|
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case 'r': /* reflection */ |
345 |
|
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if (sscanf(s+2, "%d", &i0) != 1) { |
346 |
|
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sprintf(buf, "limit reflection (%d): ", |
347 |
|
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maxdepth); |
348 |
|
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(*dev->comout)(buf); |
349 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
350 |
greg |
1.1 |
if (sscanf(buf, "%d", &i0) != 1) |
351 |
|
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break; |
352 |
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} |
353 |
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maxdepth = i0; |
354 |
|
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break; |
355 |
|
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default: |
356 |
|
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goto badparam; |
357 |
|
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} |
358 |
|
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break; |
359 |
greg |
1.5 |
case 'd': /* direct */ |
360 |
|
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switch (s[1]) { |
361 |
|
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case 'j': /* jitter */ |
362 |
|
|
if (sscanf(s+2, "%lf", &d0) != 1) { |
363 |
|
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sprintf(buf, "direct jitter (%.6g): ", |
364 |
|
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dstrsrc); |
365 |
|
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(*dev->comout)(buf); |
366 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
367 |
greg |
1.5 |
if (sscanf(buf, "%lf", &d0) != 1) |
368 |
|
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break; |
369 |
|
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} |
370 |
|
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dstrsrc = d0; |
371 |
greg |
1.9 |
break; |
372 |
|
|
case 'c': /* certainty */ |
373 |
|
|
if (sscanf(s+2, "%lf", &d0) != 1) { |
374 |
|
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sprintf(buf, "direct certainty (%.6g): ", |
375 |
|
|
shadcert); |
376 |
|
|
(*dev->comout)(buf); |
377 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
378 |
greg |
1.9 |
if (sscanf(buf, "%lf", &d0) != 1) |
379 |
|
|
break; |
380 |
|
|
} |
381 |
|
|
shadcert = d0; |
382 |
greg |
1.5 |
break; |
383 |
greg |
1.8 |
case 't': /* threshold */ |
384 |
greg |
1.5 |
if (sscanf(s+2, "%lf", &d0) != 1) { |
385 |
greg |
1.8 |
sprintf(buf, "direct threshold (%.6g): ", |
386 |
greg |
1.5 |
shadthresh); |
387 |
|
|
(*dev->comout)(buf); |
388 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
389 |
greg |
1.5 |
if (sscanf(buf, "%lf", &d0) != 1) |
390 |
|
|
break; |
391 |
|
|
} |
392 |
|
|
shadthresh = d0; |
393 |
|
|
break; |
394 |
|
|
default: |
395 |
greg |
1.1 |
goto badparam; |
396 |
|
|
} |
397 |
|
|
break; |
398 |
|
|
case 'a': /* ambient */ |
399 |
|
|
switch (s[1]) { |
400 |
|
|
case 'v': /* value */ |
401 |
|
|
if (sscanf(s+2, "%lf %lf %lf", &d0, &d1, &d2) != 3) { |
402 |
|
|
sprintf(buf, |
403 |
|
|
"ambient value (%.6g %.6g %.6g): ", |
404 |
|
|
colval(ambval,RED), |
405 |
|
|
colval(ambval,GRN), |
406 |
|
|
colval(ambval,BLU)); |
407 |
|
|
(*dev->comout)(buf); |
408 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
409 |
greg |
1.1 |
if (sscanf(buf, "%lf %lf %lf", |
410 |
|
|
&d0, &d1, &d2) != 3) |
411 |
|
|
break; |
412 |
|
|
} |
413 |
|
|
setcolor(ambval, d0, d1, d2); |
414 |
|
|
break; |
415 |
|
|
case 'a': /* accuracy */ |
416 |
|
|
if (sscanf(s+2, "%lf", &d0) != 1) { |
417 |
|
|
sprintf(buf, "ambient accuracy (%.6g): ", |
418 |
|
|
ambacc); |
419 |
|
|
(*dev->comout)(buf); |
420 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
421 |
greg |
1.1 |
if (sscanf(buf, "%lf", &d0) != 1) |
422 |
|
|
break; |
423 |
|
|
} |
424 |
|
|
ambacc = d0; |
425 |
|
|
break; |
426 |
|
|
case 'd': /* divisions */ |
427 |
|
|
if (sscanf(s+2, "%d", &i0) != 1) { |
428 |
|
|
sprintf(buf, "ambient divisions (%d): ", |
429 |
|
|
ambdiv); |
430 |
|
|
(*dev->comout)(buf); |
431 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
432 |
greg |
1.1 |
if (sscanf(buf, "%d", &i0) != 1) |
433 |
|
|
break; |
434 |
|
|
} |
435 |
|
|
ambdiv = i0; |
436 |
|
|
break; |
437 |
|
|
case 's': /* samples */ |
438 |
|
|
if (sscanf(s+2, "%d", &i0) != 1) { |
439 |
|
|
sprintf(buf, "ambient super-samples (%d): ", |
440 |
|
|
ambssamp); |
441 |
|
|
(*dev->comout)(buf); |
442 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
443 |
greg |
1.1 |
if (sscanf(buf, "%d", &i0) != 1) |
444 |
|
|
break; |
445 |
|
|
} |
446 |
|
|
ambssamp = i0; |
447 |
|
|
break; |
448 |
|
|
case 'b': /* bounces */ |
449 |
|
|
if (sscanf(s+2, "%d", &i0) != 1) { |
450 |
|
|
sprintf(buf, "ambient bounces (%d): ", |
451 |
|
|
ambounce); |
452 |
|
|
(*dev->comout)(buf); |
453 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
454 |
greg |
1.1 |
if (sscanf(buf, "%d", &i0) != 1) |
455 |
|
|
break; |
456 |
|
|
} |
457 |
|
|
ambounce = i0; |
458 |
|
|
break; |
459 |
|
|
case 'r': |
460 |
|
|
if (sscanf(s+2, "%d", &i0) != 1) { |
461 |
|
|
sprintf(buf, "ambient resolution (%d): ", |
462 |
|
|
ambres); |
463 |
|
|
(*dev->comout)(buf); |
464 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
465 |
greg |
1.1 |
if (sscanf(buf, "%d", &i0) != 1) |
466 |
|
|
break; |
467 |
|
|
} |
468 |
|
|
ambres = i0; |
469 |
|
|
minarad = ambres > 0 ? thescene.cusize/ambres : 0.0; |
470 |
|
|
break; |
471 |
|
|
default: |
472 |
|
|
goto badparam; |
473 |
|
|
} |
474 |
|
|
break; |
475 |
|
|
case 's': /* sample */ |
476 |
|
|
switch (s[1]) { |
477 |
|
|
case 'p': /* pixel */ |
478 |
|
|
if (sscanf(s+2, "%d", &i0) != 1) { |
479 |
|
|
sprintf(buf, "sample pixel (%d): ", psample); |
480 |
|
|
(*dev->comout)(buf); |
481 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
482 |
greg |
1.1 |
if (sscanf(buf, "%d", &i0) != 1) |
483 |
|
|
break; |
484 |
|
|
} |
485 |
|
|
psample = i0; |
486 |
|
|
pdepth = 0; |
487 |
|
|
break; |
488 |
greg |
1.8 |
case 't': /* threshold */ |
489 |
greg |
1.1 |
if (sscanf(s+2, "%lf", &d0) != 1) { |
490 |
greg |
1.8 |
sprintf(buf, "sample threshold (%.6g): ", |
491 |
greg |
1.1 |
maxdiff); |
492 |
|
|
(*dev->comout)(buf); |
493 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
494 |
greg |
1.1 |
if (sscanf(buf, "%lf", &d0) != 1) |
495 |
|
|
break; |
496 |
|
|
} |
497 |
|
|
maxdiff = d0; |
498 |
|
|
pdepth = 0; |
499 |
|
|
break; |
500 |
|
|
default: |
501 |
|
|
goto badparam; |
502 |
|
|
} |
503 |
|
|
break; |
504 |
|
|
case '\0': /* nothing */ |
505 |
|
|
break; |
506 |
|
|
default:; |
507 |
|
|
badparam: |
508 |
|
|
sprintf(errmsg, "%s: unknown variable", s); |
509 |
|
|
error(COMMAND, errmsg); |
510 |
|
|
break; |
511 |
|
|
} |
512 |
|
|
} |
513 |
|
|
|
514 |
|
|
|
515 |
|
|
traceray(s) /* trace a single ray */ |
516 |
|
|
char *s; |
517 |
|
|
{ |
518 |
|
|
char buf[128]; |
519 |
|
|
int x, y; |
520 |
|
|
RAY thisray; |
521 |
|
|
|
522 |
|
|
if (sscanf(s, "%lf %lf %lf %lf %lf %lf", |
523 |
|
|
&thisray.rorg[0], &thisray.rorg[1], &thisray.rorg[2], |
524 |
|
|
&thisray.rdir[0], &thisray.rdir[1], &thisray.rdir[2]) != 6) { |
525 |
|
|
|
526 |
|
|
if (dev->getcur == NULL) |
527 |
|
|
return; |
528 |
|
|
(*dev->comout)("Pick ray\n"); |
529 |
|
|
if ((*dev->getcur)(&x, &y) == ABORT) |
530 |
|
|
return; |
531 |
|
|
|
532 |
greg |
1.21 |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
533 |
|
|
(x+.5)/hresolu, (y+.5)/vresolu) < 0) { |
534 |
|
|
error(COMMAND, "not on image"); |
535 |
|
|
return; |
536 |
|
|
} |
537 |
|
|
|
538 |
greg |
1.1 |
} else if (normalize(thisray.rdir) == 0.0) { |
539 |
|
|
error(COMMAND, "zero ray direction"); |
540 |
|
|
return; |
541 |
|
|
} |
542 |
|
|
|
543 |
|
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
544 |
|
|
|
545 |
|
|
rayvalue(&thisray); |
546 |
|
|
|
547 |
|
|
if (thisray.ro == NULL) |
548 |
|
|
(*dev->comout)("ray hit nothing"); |
549 |
|
|
else { |
550 |
|
|
sprintf(buf, "ray hit %s %s \"%s\"", |
551 |
|
|
objptr(thisray.ro->omod)->oname, |
552 |
|
|
ofun[thisray.ro->otype].funame, |
553 |
|
|
thisray.ro->oname); |
554 |
|
|
(*dev->comout)(buf); |
555 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
556 |
greg |
1.1 |
if (thisray.rot >= FHUGE) |
557 |
|
|
(*dev->comout)("at infinity"); |
558 |
|
|
else { |
559 |
|
|
sprintf(buf, "at (%.6g %.6g %.6g)", thisray.rop[0], |
560 |
|
|
thisray.rop[1], thisray.rop[2]); |
561 |
|
|
(*dev->comout)(buf); |
562 |
|
|
} |
563 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
564 |
greg |
1.1 |
sprintf(buf, "with value (%.6g %.6g %.6g)", |
565 |
|
|
colval(thisray.rcol,RED), |
566 |
|
|
colval(thisray.rcol,GRN), |
567 |
|
|
colval(thisray.rcol,BLU)); |
568 |
|
|
(*dev->comout)(buf); |
569 |
|
|
} |
570 |
greg |
1.18 |
(*dev->comin)(buf, NULL); |
571 |
greg |
1.1 |
} |
572 |
|
|
|
573 |
|
|
|
574 |
|
|
writepict(s) /* write the picture to a file */ |
575 |
|
|
char *s; |
576 |
|
|
{ |
577 |
|
|
static char buf[128]; |
578 |
greg |
1.10 |
char *fname; |
579 |
greg |
1.1 |
FILE *fp; |
580 |
|
|
COLR *scanline; |
581 |
|
|
int y; |
582 |
|
|
|
583 |
|
|
if (sscanf(s, "%s", buf) != 1 && buf[0] == '\0') { |
584 |
|
|
error(COMMAND, "no file"); |
585 |
|
|
return; |
586 |
|
|
} |
587 |
greg |
1.10 |
if ((fname = getpath(buf, NULL, 0)) == NULL || |
588 |
greg |
1.1 |
(fp = fopen(fname, "w")) == NULL) { |
589 |
|
|
sprintf(errmsg, "cannot open \"%s\"", buf); |
590 |
|
|
error(COMMAND, errmsg); |
591 |
|
|
return; |
592 |
|
|
} |
593 |
|
|
(*dev->comout)("writing \""); |
594 |
|
|
(*dev->comout)(fname); |
595 |
|
|
(*dev->comout)("\"...\n"); |
596 |
|
|
/* write header */ |
597 |
|
|
fputs(progname, fp); |
598 |
|
|
fprintview(&ourview, fp); |
599 |
greg |
1.11 |
putc('\n', fp); |
600 |
greg |
1.1 |
if (exposure != 1.0) |
601 |
greg |
1.13 |
fputexpos(exposure, fp); |
602 |
greg |
1.15 |
if (dev->pixaspect != 1.0) |
603 |
|
|
fputaspect(dev->pixaspect, fp); |
604 |
greg |
1.11 |
putc('\n', fp); |
605 |
greg |
1.14 |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, fp); |
606 |
greg |
1.1 |
|
607 |
greg |
1.14 |
scanline = (COLR *)malloc(hresolu*sizeof(COLR)); |
608 |
greg |
1.1 |
if (scanline == NULL) |
609 |
|
|
error(SYSTEM, "out of memory in writepict"); |
610 |
greg |
1.14 |
for (y = vresolu-1; y >= 0; y--) { |
611 |
|
|
getpictcolrs(y, scanline, &ptrunk, hresolu, vresolu); |
612 |
|
|
if (fwritecolrs(scanline, hresolu, fp) < 0) |
613 |
greg |
1.1 |
break; |
614 |
|
|
} |
615 |
|
|
if (fclose(fp) < 0) |
616 |
|
|
error(COMMAND, "write error"); |
617 |
|
|
free((char *)scanline); |
618 |
|
|
} |