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#include "copyright.h" |
11 |
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< |
#include "standard.h" |
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< |
|
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> |
#include <ctype.h> |
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> |
#include "rtio.h" |
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> |
#include "rtmath.h" |
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> |
#include "paths.h" |
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#include "view.h" |
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|
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– |
#include "paths.h" |
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|
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– |
#define FEQ(x,y) (fabs((x)-(y)) <= FTINY) |
19 |
– |
#define VEQ(v,w) (FEQ((v)[0],(w)[0]) && FEQ((v)[1],(w)[1]) \ |
20 |
– |
&& FEQ((v)[2],(w)[2])) |
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|
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VIEW stdview = STDVIEW; /* default view parameters */ |
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|
20 |
+ |
static gethfunc gethview; |
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|
22 |
+ |
|
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char * |
24 |
< |
setview(v) /* set hvec and vvec, return message on error */ |
25 |
< |
register VIEW *v; |
24 |
> |
setview( /* set hvec and vvec, return message on error */ |
25 |
> |
VIEW *v |
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> |
) |
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{ |
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static char ill_horiz[] = "illegal horizontal view size"; |
29 |
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static char ill_vert[] = "illegal vertical view size"; |
30 |
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|
31 |
< |
if (v->vaft < -FTINY || (v->vaft > FTINY && v->vaft <= v->vfore)) |
31 |
> |
if ((v->vfore < -FTINY) | (v->vaft < -FTINY) || |
32 |
> |
(v->vaft > FTINY) & (v->vaft <= v->vfore)) |
33 |
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return("illegal fore/aft clipping plane"); |
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|
35 |
< |
if (normalize(v->vdir) == 0.0) /* normalize direction */ |
35 |
> |
if (v->vdist <= FTINY) |
36 |
> |
return("illegal view distance"); |
37 |
> |
v->vdist *= normalize(v->vdir); /* normalize direction */ |
38 |
> |
if (v->vdist == 0.0) |
39 |
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return("zero view direction"); |
40 |
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|
41 |
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if (normalize(v->vup) == 0.0) /* normalize view up */ |
63 |
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return(ill_horiz); |
64 |
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if (v->vert >= 180.0-FTINY) |
65 |
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return(ill_vert); |
66 |
< |
v->hn2 = 2.0 * tan(v->horiz*(PI/180.0/2.0)); |
67 |
< |
v->vn2 = 2.0 * tan(v->vert*(PI/180.0/2.0)); |
66 |
> |
v->hn2 = 2.0 * tan(v->horiz*(PI/360.)); |
67 |
> |
v->vn2 = 2.0 * tan(v->vert*(PI/360.)); |
68 |
|
break; |
69 |
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case VT_CYL: /* cylindrical panorama */ |
70 |
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if (v->horiz > 360.0+FTINY) |
72 |
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if (v->vert >= 180.0-FTINY) |
73 |
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return(ill_vert); |
74 |
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v->hn2 = v->horiz * (PI/180.0); |
75 |
< |
v->vn2 = 2.0 * tan(v->vert*(PI/180.0/2.0)); |
75 |
> |
v->vn2 = 2.0 * tan(v->vert*(PI/360.)); |
76 |
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break; |
77 |
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case VT_ANG: /* angular fisheye */ |
78 |
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if (v->horiz > 360.0+FTINY) |
87 |
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return(ill_horiz); |
88 |
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if (v->vert > 180.0+FTINY) |
89 |
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return(ill_vert); |
90 |
< |
v->hn2 = 2.0 * sin(v->horiz*(PI/180.0/2.0)); |
91 |
< |
v->vn2 = 2.0 * sin(v->vert*(PI/180.0/2.0)); |
90 |
> |
v->hn2 = 2.0 * sin(v->horiz*(PI/360.)); |
91 |
> |
v->vn2 = 2.0 * sin(v->vert*(PI/360.)); |
92 |
|
break; |
93 |
+ |
case VT_PLS: /* planispheric fisheye */ |
94 |
+ |
if (v->horiz >= 360.0-FTINY) |
95 |
+ |
return(ill_horiz); |
96 |
+ |
if (v->vert >= 360.0-FTINY) |
97 |
+ |
return(ill_vert); |
98 |
+ |
v->hn2 = 2.*sin(v->horiz*(PI/360.)) / |
99 |
+ |
(1.0 + cos(v->horiz*(PI/360.))); |
100 |
+ |
v->vn2 = 2.*sin(v->vert*(PI/360.)) / |
101 |
+ |
(1.0 + cos(v->vert*(PI/360.))); |
102 |
+ |
break; |
103 |
|
default: |
104 |
|
return("unknown view type"); |
105 |
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} |
106 |
< |
if (v->type != VT_ANG) { |
106 |
> |
if (v->type != VT_ANG && v->type != VT_PLS) { |
107 |
|
if (v->type != VT_CYL) { |
108 |
|
v->hvec[0] *= v->hn2; |
109 |
|
v->hvec[1] *= v->hn2; |
120 |
|
} |
121 |
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|
122 |
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|
123 |
+ |
char * |
124 |
+ |
cropview( /* crop a view to the indicated bounds */ |
125 |
+ |
VIEW *v, |
126 |
+ |
double x0, |
127 |
+ |
double y0, |
128 |
+ |
double x1, |
129 |
+ |
double y1 |
130 |
+ |
) |
131 |
+ |
{ |
132 |
+ |
static char ill_hemi[] = "illegal crop for hemispherical view"; |
133 |
+ |
double d; |
134 |
+ |
/* order crop extrema */ |
135 |
+ |
if (x0 > x1) { d=x0; x0=x1; x1=d; } |
136 |
+ |
if (y0 > y1) { d=y0; y0=y1; y1=d; } |
137 |
+ |
|
138 |
+ |
if ((x1-x0 <= FTINY) | (y1-y0 <= FTINY)) |
139 |
+ |
return("zero crop area"); |
140 |
+ |
|
141 |
+ |
d = x1 - x0; /* adjust horizontal size? */ |
142 |
+ |
if (!FABSEQ(d, 1.)) |
143 |
+ |
switch (v->type) { |
144 |
+ |
case VT_PER: |
145 |
+ |
v->horiz = 360./PI*atan( d*tan(PI/360.*v->horiz) ); |
146 |
+ |
break; |
147 |
+ |
case VT_PAR: |
148 |
+ |
case VT_ANG: |
149 |
+ |
case VT_CYL: |
150 |
+ |
v->horiz *= d; |
151 |
+ |
break; |
152 |
+ |
case VT_HEM: |
153 |
+ |
d *= sin(PI/360.*v->horiz); |
154 |
+ |
if (d > 1.) |
155 |
+ |
return(ill_hemi); |
156 |
+ |
v->horiz = 360./PI*asin( d ); |
157 |
+ |
break; |
158 |
+ |
case VT_PLS: |
159 |
+ |
d *= sin(PI/360.*v->horiz) / |
160 |
+ |
(1. + cos(PI/360.*v->horiz)); |
161 |
+ |
v->horiz = 360./PI*acos( (1. - d*d) / (1. + d*d) ); |
162 |
+ |
break; |
163 |
+ |
} |
164 |
+ |
|
165 |
+ |
d = y1 - y0; /* adjust vertical size? */ |
166 |
+ |
if (!FABSEQ(d, 1.)) |
167 |
+ |
switch (v->type) { |
168 |
+ |
case VT_PER: |
169 |
+ |
case VT_CYL: |
170 |
+ |
v->vert = 360./PI*atan( d*tan(PI/360.*v->vert) ); |
171 |
+ |
break; |
172 |
+ |
case VT_PAR: |
173 |
+ |
case VT_ANG: |
174 |
+ |
v->vert *= d; |
175 |
+ |
break; |
176 |
+ |
case VT_HEM: |
177 |
+ |
d *= sin(PI/360.*v->vert); |
178 |
+ |
if (d > 1.) |
179 |
+ |
return(ill_hemi); |
180 |
+ |
v->vert = 360./PI*asin( d ); |
181 |
+ |
break; |
182 |
+ |
case VT_PLS: |
183 |
+ |
d *= sin(PI/360.*v->vert) / |
184 |
+ |
(1. + cos(PI/360.*v->vert)); |
185 |
+ |
v->vert = 360./PI*acos( (1. - d*d) / (1. + d*d) ); |
186 |
+ |
break; |
187 |
+ |
} |
188 |
+ |
/* adjust offsets */ |
189 |
+ |
v->hoff = ((x0 + x1)*.5 - .5 + v->hoff) / (x1 - x0); |
190 |
+ |
v->voff = ((y0 + y1)*.5 - .5 + v->voff) / (y1 - y0); |
191 |
+ |
|
192 |
+ |
return(setview(v)); /* final error checks & set-up */ |
193 |
+ |
} |
194 |
+ |
|
195 |
+ |
|
196 |
|
void |
197 |
< |
normaspect(va, ap, xp, yp) /* fix pixel aspect or resolution */ |
198 |
< |
double va; /* view aspect ratio */ |
199 |
< |
double *ap; /* pixel aspect in (or out if 0) */ |
200 |
< |
int *xp, *yp; /* x and y resolution in (or out if *ap!=0) */ |
197 |
> |
normaspect( /* fix pixel aspect or resolution */ |
198 |
> |
double va, /* view aspect ratio */ |
199 |
> |
double *ap, /* pixel aspect in (or out if 0) */ |
200 |
> |
int *xp, |
201 |
> |
int *yp /* x and y resolution in (or out if *ap!=0) */ |
202 |
> |
) |
203 |
|
{ |
204 |
|
if (*ap <= FTINY) |
205 |
|
*ap = va * *xp / *yp; /* compute pixel aspect */ |
211 |
|
|
212 |
|
|
213 |
|
double |
214 |
< |
viewray(orig, direc, v, x, y) /* compute ray origin and direction */ |
215 |
< |
FVECT orig, direc; |
216 |
< |
register VIEW *v; |
217 |
< |
double x, y; |
214 |
> |
viewray( /* compute ray origin and direction */ |
215 |
> |
FVECT orig, |
216 |
> |
FVECT direc, |
217 |
> |
VIEW *v, |
218 |
> |
double x, |
219 |
> |
double y |
220 |
> |
) |
221 |
|
{ |
222 |
|
double d, z; |
223 |
|
|
238 |
|
direc[0] = v->vdir[0] + x*v->hvec[0] + y*v->vvec[0]; |
239 |
|
direc[1] = v->vdir[1] + x*v->hvec[1] + y*v->vvec[1]; |
240 |
|
direc[2] = v->vdir[2] + x*v->hvec[2] + y*v->vvec[2]; |
241 |
< |
orig[0] = v->vp[0] + v->vfore*direc[0]; |
151 |
< |
orig[1] = v->vp[1] + v->vfore*direc[1]; |
152 |
< |
orig[2] = v->vp[2] + v->vfore*direc[2]; |
241 |
> |
VSUM(orig, v->vp, direc, v->vfore); |
242 |
|
d = normalize(direc); |
243 |
|
return(v->vaft > FTINY ? (v->vaft - v->vfore)*d : 0.0); |
244 |
|
case VT_HEM: /* hemispherical fisheye */ |
249 |
|
direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0]; |
250 |
|
direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1]; |
251 |
|
direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2]; |
252 |
< |
orig[0] = v->vp[0] + v->vfore*direc[0]; |
164 |
< |
orig[1] = v->vp[1] + v->vfore*direc[1]; |
165 |
< |
orig[2] = v->vp[2] + v->vfore*direc[2]; |
252 |
> |
VSUM(orig, v->vp, direc, v->vfore); |
253 |
|
return(v->vaft > FTINY ? v->vaft - v->vfore : 0.0); |
254 |
|
case VT_CYL: /* cylindrical panorama */ |
255 |
|
d = x * v->horiz * (PI/180.0); |
258 |
|
direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0]; |
259 |
|
direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1]; |
260 |
|
direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2]; |
261 |
< |
orig[0] = v->vp[0] + v->vfore*direc[0]; |
175 |
< |
orig[1] = v->vp[1] + v->vfore*direc[1]; |
176 |
< |
orig[2] = v->vp[2] + v->vfore*direc[2]; |
261 |
> |
VSUM(orig, v->vp, direc, v->vfore); |
262 |
|
d = normalize(direc); |
263 |
|
return(v->vaft > FTINY ? (v->vaft - v->vfore)*d : 0.0); |
264 |
|
case VT_ANG: /* angular fisheye */ |
265 |
< |
x *= v->horiz/180.0; |
266 |
< |
y *= v->vert/180.0; |
265 |
> |
x *= (1.0/180.0)*v->horiz; |
266 |
> |
y *= (1.0/180.0)*v->vert; |
267 |
|
d = x*x + y*y; |
268 |
|
if (d > 1.0) |
269 |
|
return(-1.0); |
270 |
|
d = sqrt(d); |
271 |
|
z = cos(PI*d); |
272 |
< |
d = d <= FTINY ? PI : sqrt(1 - z*z)/d; |
272 |
> |
d = d <= FTINY ? PI : sqrt(1.0 - z*z)/d; |
273 |
|
x *= d; |
274 |
|
y *= d; |
275 |
|
direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0]; |
276 |
|
direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1]; |
277 |
|
direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2]; |
278 |
< |
orig[0] = v->vp[0] + v->vfore*direc[0]; |
194 |
< |
orig[1] = v->vp[1] + v->vfore*direc[1]; |
195 |
< |
orig[2] = v->vp[2] + v->vfore*direc[2]; |
278 |
> |
VSUM(orig, v->vp, direc, v->vfore); |
279 |
|
return(v->vaft > FTINY ? v->vaft - v->vfore : 0.0); |
280 |
+ |
case VT_PLS: /* planispheric fisheye */ |
281 |
+ |
x *= sqrt(v->hn2); |
282 |
+ |
y *= sqrt(v->vn2); |
283 |
+ |
d = x*x + y*y; |
284 |
+ |
z = (1. - d)/(1. + d); |
285 |
+ |
x *= (1. + z); |
286 |
+ |
y *= (1. + z); |
287 |
+ |
direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0]; |
288 |
+ |
direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1]; |
289 |
+ |
direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2]; |
290 |
+ |
VSUM(orig, v->vp, direc, v->vfore); |
291 |
+ |
return(v->vaft > FTINY ? v->vaft - v->vfore : 0.0); |
292 |
|
} |
293 |
|
return(-1.0); |
294 |
|
} |
295 |
|
|
296 |
|
|
297 |
< |
void |
298 |
< |
viewloc(ip, v, p) /* find image location for point */ |
299 |
< |
FVECT ip; |
300 |
< |
register VIEW *v; |
301 |
< |
FVECT p; |
297 |
> |
int |
298 |
> |
viewloc( /* find image location for point */ |
299 |
> |
FVECT ip, |
300 |
> |
VIEW *v, |
301 |
> |
FVECT p |
302 |
> |
) /* Use VL_* flags to interpret return value */ |
303 |
|
{ |
304 |
+ |
int rflags = VL_GOOD; |
305 |
|
double d, d2; |
306 |
|
FVECT disp; |
307 |
|
|
308 |
< |
disp[0] = p[0] - v->vp[0]; |
212 |
< |
disp[1] = p[1] - v->vp[1]; |
213 |
< |
disp[2] = p[2] - v->vp[2]; |
308 |
> |
VSUB(disp, p, v->vp); |
309 |
|
|
310 |
|
switch (v->type) { |
311 |
|
case VT_PAR: /* parallel view */ |
313 |
|
break; |
314 |
|
case VT_PER: /* perspective view */ |
315 |
|
d = DOT(disp,v->vdir); |
316 |
+ |
rflags |= VL_BEYOND*((v->vaft > FTINY) & |
317 |
+ |
(d >= v->vaft)); |
318 |
|
ip[2] = VLEN(disp); |
319 |
< |
if (d < 0.0) { /* fold pyramid */ |
319 |
> |
if (d < -FTINY) { /* fold pyramid */ |
320 |
|
ip[2] = -ip[2]; |
321 |
|
d = -d; |
322 |
< |
} |
323 |
< |
if (d > FTINY) { |
324 |
< |
d = 1.0/d; |
325 |
< |
disp[0] *= d; |
326 |
< |
disp[1] *= d; |
327 |
< |
disp[2] *= d; |
328 |
< |
} |
322 |
> |
} else if (d <= FTINY) |
323 |
> |
return(VL_BAD); /* at infinite edge */ |
324 |
> |
d = 1.0/d; |
325 |
> |
disp[0] *= d; |
326 |
> |
disp[1] *= d; |
327 |
> |
disp[2] *= d; |
328 |
> |
if (ip[2] < 0.0) d = -d; |
329 |
|
ip[2] *= (1.0 - v->vfore*d); |
330 |
|
break; |
331 |
|
case VT_HEM: /* hemispherical fisheye */ |
340 |
|
d = DOT(disp,v->hvec); |
341 |
|
d2 = DOT(disp,v->vdir); |
342 |
|
ip[0] = 180.0/PI * atan2(d,d2) / v->horiz + 0.5 - v->hoff; |
343 |
< |
d = 1.0/sqrt(d*d + d2*d2); |
343 |
> |
d2 = d*d + d2*d2; |
344 |
> |
if (d2 <= FTINY*FTINY) |
345 |
> |
return(VL_BAD); /* at pole */ |
346 |
> |
rflags |= VL_BEYOND*((v->vaft > FTINY) & |
347 |
> |
(d2 >= v->vaft*v->vaft)); |
348 |
> |
d = 1.0/sqrt(d2); |
349 |
|
ip[1] = DOT(disp,v->vvec)*d/v->vn2 + 0.5 - v->voff; |
350 |
|
ip[2] = VLEN(disp); |
351 |
|
ip[2] *= (1.0 - v->vfore*d); |
352 |
< |
return; |
352 |
> |
goto gotall; |
353 |
|
case VT_ANG: /* angular fisheye */ |
354 |
|
ip[0] = 0.5 - v->hoff; |
355 |
|
ip[1] = 0.5 - v->voff; |
356 |
|
ip[2] = normalize(disp) - v->vfore; |
357 |
|
d = DOT(disp,v->vdir); |
358 |
|
if (d >= 1.0-FTINY) |
359 |
< |
return; |
359 |
> |
goto gotall; |
360 |
|
if (d <= -(1.0-FTINY)) { |
361 |
|
ip[0] += 180.0/v->horiz; |
362 |
< |
return; |
362 |
> |
goto gotall; |
363 |
|
} |
364 |
< |
d = acos(d)/PI / sqrt(1.0 - d*d); |
365 |
< |
ip[0] += DOT(disp,v->hvec)*d*180.0/v->horiz; |
366 |
< |
ip[1] += DOT(disp,v->vvec)*d*180.0/v->vert; |
367 |
< |
return; |
364 |
> |
d = (180.0/PI)*acos(d) / sqrt(1.0 - d*d); |
365 |
> |
ip[0] += DOT(disp,v->hvec)*d/v->horiz; |
366 |
> |
ip[1] += DOT(disp,v->vvec)*d/v->vert; |
367 |
> |
goto gotall; |
368 |
> |
case VT_PLS: /* planispheric fisheye */ |
369 |
> |
ip[0] = 0.5 - v->hoff; |
370 |
> |
ip[1] = 0.5 - v->voff; |
371 |
> |
ip[2] = normalize(disp) - v->vfore; |
372 |
> |
d = DOT(disp,v->vdir); |
373 |
> |
if (d >= 1.0-FTINY) |
374 |
> |
goto gotall; |
375 |
> |
if (d <= -(1.0-FTINY)) |
376 |
> |
return(VL_BAD); |
377 |
> |
ip[0] += DOT(disp,v->hvec)/((1. + d)*sqrt(v->hn2)); |
378 |
> |
ip[1] += DOT(disp,v->vvec)/((1. + d)*sqrt(v->vn2)); |
379 |
> |
goto gotall; |
380 |
> |
default: |
381 |
> |
return(VL_BAD); |
382 |
|
} |
383 |
|
ip[0] = DOT(disp,v->hvec)/v->hn2 + 0.5 - v->hoff; |
384 |
|
ip[1] = DOT(disp,v->vvec)/v->vn2 + 0.5 - v->voff; |
385 |
+ |
gotall: /* add appropriate return flags */ |
386 |
+ |
if (ip[2] <= 0.0) |
387 |
+ |
rflags |= VL_BEHIND; |
388 |
+ |
else if ((v->type != VT_PER) & (v->type != VT_CYL)) |
389 |
+ |
rflags |= VL_BEYOND*((v->vaft > FTINY) & |
390 |
+ |
(ip[2] >= v->vaft - v->vfore)); |
391 |
+ |
rflags |= VL_OUTSIDE*((0.0 >= ip[0]) | (ip[0] >= 1.0) | |
392 |
+ |
(0.0 >= ip[1]) | (ip[1] >= 1.0)); |
393 |
+ |
return(rflags); |
394 |
|
} |
395 |
|
|
396 |
|
|
397 |
|
void |
398 |
< |
pix2loc(loc, rp, px, py) /* compute image location from pixel pos. */ |
399 |
< |
RREAL loc[2]; |
400 |
< |
register RESOLU *rp; |
401 |
< |
int px, py; |
398 |
> |
pix2loc( /* compute image location from pixel pos. */ |
399 |
> |
RREAL loc[2], |
400 |
> |
RESOLU *rp, |
401 |
> |
int px, |
402 |
> |
int py |
403 |
> |
) |
404 |
|
{ |
405 |
< |
register int x, y; |
405 |
> |
int x, y; |
406 |
|
|
407 |
|
if (rp->rt & YMAJOR) { |
408 |
|
x = px; |
421 |
|
|
422 |
|
|
423 |
|
void |
424 |
< |
loc2pix(pp, rp, lx, ly) /* compute pixel pos. from image location */ |
425 |
< |
int pp[2]; |
426 |
< |
register RESOLU *rp; |
427 |
< |
double lx, ly; |
424 |
> |
loc2pix( /* compute pixel pos. from image location */ |
425 |
> |
int pp[2], |
426 |
> |
RESOLU *rp, |
427 |
> |
double lx, |
428 |
> |
double ly |
429 |
> |
) |
430 |
|
{ |
431 |
< |
register int x, y; |
431 |
> |
int x, y; |
432 |
|
|
433 |
< |
x = lx * rp->xr; |
434 |
< |
y = ly * rp->yr; |
433 |
> |
x = (int)(lx*rp->xr + .5 - (lx < 0.0)); |
434 |
> |
y = (int)(ly*rp->yr + .5 - (ly < 0.0)); |
435 |
> |
|
436 |
|
if (rp->rt & XDECR) |
437 |
|
x = rp->xr-1 - x; |
438 |
|
if (rp->rt & YDECR) |
448 |
|
|
449 |
|
|
450 |
|
int |
451 |
< |
getviewopt(v, ac, av) /* process view argument */ |
452 |
< |
register VIEW *v; |
453 |
< |
int ac; |
454 |
< |
register char *av[]; |
451 |
> |
getviewopt( /* process view argument */ |
452 |
> |
VIEW *v, |
453 |
> |
int ac, |
454 |
> |
char *av[] |
455 |
> |
) |
456 |
|
{ |
457 |
< |
#define check(c,l) if ((av[0][c]&&av[0][c]!=' ') || \ |
457 |
> |
#define check(c,l) if ((av[0][c]&&!isspace(av[0][c])) || \ |
458 |
|
badarg(ac-1,av+1,l)) return(-1) |
459 |
|
|
460 |
|
if (ac <= 0 || av[0][0] != '-' || av[0][1] != 'v') |
461 |
|
return(-1); |
462 |
|
switch (av[0][2]) { |
463 |
|
case 't': /* type */ |
464 |
< |
if (!av[0][3] || av[0][3]==' ') |
464 |
> |
if (!av[0][3] || isspace(av[0][3])) |
465 |
|
return(-1); |
466 |
|
check(4,""); |
467 |
|
v->type = av[0][3]; |
477 |
|
v->vdir[0] = atof(av[1]); |
478 |
|
v->vdir[1] = atof(av[2]); |
479 |
|
v->vdir[2] = atof(av[3]); |
480 |
+ |
v->vdist = 1.; |
481 |
|
return(3); |
482 |
|
case 'u': /* up */ |
483 |
|
check(3,"fff"); |
517 |
|
|
518 |
|
|
519 |
|
int |
520 |
< |
sscanview(vp, s) /* get view parameters from string */ |
521 |
< |
VIEW *vp; |
522 |
< |
register char *s; |
520 |
> |
sscanview( /* get view parameters from string */ |
521 |
> |
VIEW *vp, |
522 |
> |
char *s |
523 |
> |
) |
524 |
|
{ |
525 |
|
int ac; |
526 |
|
char *av[4]; |
527 |
|
int na; |
528 |
|
int nvopts = 0; |
529 |
|
|
530 |
< |
if (*s != '-') |
531 |
< |
s = sskip2(s,1); |
530 |
> |
while (isspace(*s)) |
531 |
> |
if (!*s++) |
532 |
> |
return(0); |
533 |
|
while (*s) { |
534 |
|
ac = 0; |
535 |
|
do { |
536 |
< |
av[ac++] = s; |
537 |
< |
while (*s && *s != ' ') |
536 |
> |
if (ac || *s == '-') |
537 |
> |
av[ac++] = s; |
538 |
> |
while (*s && !isspace(*s)) |
539 |
|
s++; |
540 |
< |
while (*s == ' ') |
540 |
> |
while (isspace(*s)) |
541 |
|
s++; |
542 |
|
} while (*s && ac < 4); |
543 |
|
if ((na = getviewopt(vp, ac, av)) >= 0) { |
552 |
|
|
553 |
|
|
554 |
|
void |
555 |
< |
fprintview(vp, fp) /* write out view parameters */ |
556 |
< |
register VIEW *vp; |
557 |
< |
FILE *fp; |
555 |
> |
fprintview( /* write out view parameters */ |
556 |
> |
VIEW *vp, |
557 |
> |
FILE *fp |
558 |
> |
) |
559 |
|
{ |
560 |
|
fprintf(fp, " -vt%c", vp->type); |
561 |
|
fprintf(fp, " -vp %.6g %.6g %.6g", vp->vp[0], vp->vp[1], vp->vp[2]); |
562 |
< |
fprintf(fp, " -vd %.6g %.6g %.6g", vp->vdir[0], vp->vdir[1], vp->vdir[2]); |
562 |
> |
fprintf(fp, " -vd %.6g %.6g %.6g", vp->vdir[0]*vp->vdist, |
563 |
> |
vp->vdir[1]*vp->vdist, |
564 |
> |
vp->vdir[2]*vp->vdist); |
565 |
|
fprintf(fp, " -vu %.6g %.6g %.6g", vp->vup[0], vp->vup[1], vp->vup[2]); |
566 |
|
fprintf(fp, " -vh %.6g -vv %.6g", vp->horiz, vp->vert); |
567 |
|
fprintf(fp, " -vo %.6g -va %.6g", vp->vfore, vp->vaft); |
570 |
|
|
571 |
|
|
572 |
|
char * |
573 |
< |
viewopt(vp) /* translate to minimal view string */ |
574 |
< |
register VIEW *vp; |
573 |
> |
viewopt( /* translate to minimal view string */ |
574 |
> |
VIEW *vp |
575 |
> |
) |
576 |
|
{ |
577 |
|
static char vwstr[128]; |
578 |
< |
register char *cp = vwstr; |
578 |
> |
char *cp = vwstr; |
579 |
|
|
580 |
+ |
*cp = '\0'; |
581 |
|
if (vp->type != stdview.type) { |
582 |
|
sprintf(cp, " -vt%c", vp->type); |
583 |
|
cp += strlen(cp); |
584 |
|
} |
585 |
< |
if (!VEQ(vp->vp,stdview.vp)) { |
585 |
> |
if (!VABSEQ(vp->vp,stdview.vp)) { |
586 |
|
sprintf(cp, " -vp %.6g %.6g %.6g", |
587 |
|
vp->vp[0], vp->vp[1], vp->vp[2]); |
588 |
|
cp += strlen(cp); |
589 |
|
} |
590 |
< |
if (!VEQ(vp->vdir,stdview.vdir)) { |
590 |
> |
if (!FABSEQ(vp->vdist,stdview.vdist) || !VABSEQ(vp->vdir,stdview.vdir)) { |
591 |
|
sprintf(cp, " -vd %.6g %.6g %.6g", |
592 |
< |
vp->vdir[0], vp->vdir[1], vp->vdir[2]); |
592 |
> |
vp->vdir[0]*vp->vdist, |
593 |
> |
vp->vdir[1]*vp->vdist, |
594 |
> |
vp->vdir[2]*vp->vdist); |
595 |
|
cp += strlen(cp); |
596 |
|
} |
597 |
< |
if (!VEQ(vp->vup,stdview.vup)) { |
597 |
> |
if (!VABSEQ(vp->vup,stdview.vup)) { |
598 |
|
sprintf(cp, " -vu %.6g %.6g %.6g", |
599 |
|
vp->vup[0], vp->vup[1], vp->vup[2]); |
600 |
|
cp += strlen(cp); |
601 |
|
} |
602 |
< |
if (!FEQ(vp->horiz,stdview.horiz)) { |
602 |
> |
if (!FABSEQ(vp->horiz,stdview.horiz)) { |
603 |
|
sprintf(cp, " -vh %.6g", vp->horiz); |
604 |
|
cp += strlen(cp); |
605 |
|
} |
606 |
< |
if (!FEQ(vp->vert,stdview.vert)) { |
606 |
> |
if (!FABSEQ(vp->vert,stdview.vert)) { |
607 |
|
sprintf(cp, " -vv %.6g", vp->vert); |
608 |
|
cp += strlen(cp); |
609 |
|
} |
610 |
< |
if (!FEQ(vp->vfore,stdview.vfore)) { |
610 |
> |
if (!FABSEQ(vp->vfore,stdview.vfore)) { |
611 |
|
sprintf(cp, " -vo %.6g", vp->vfore); |
612 |
|
cp += strlen(cp); |
613 |
|
} |
614 |
< |
if (!FEQ(vp->vaft,stdview.vaft)) { |
614 |
> |
if (!FABSEQ(vp->vaft,stdview.vaft)) { |
615 |
|
sprintf(cp, " -va %.6g", vp->vaft); |
616 |
|
cp += strlen(cp); |
617 |
|
} |
618 |
< |
if (!FEQ(vp->hoff,stdview.hoff)) { |
618 |
> |
if (!FABSEQ(vp->hoff,stdview.hoff)) { |
619 |
|
sprintf(cp, " -vs %.6g", vp->hoff); |
620 |
|
cp += strlen(cp); |
621 |
|
} |
622 |
< |
if (!FEQ(vp->voff,stdview.voff)) { |
622 |
> |
if (!FABSEQ(vp->voff,stdview.voff)) { |
623 |
|
sprintf(cp, " -vl %.6g", vp->voff); |
624 |
|
cp += strlen(cp); |
625 |
|
} |
628 |
|
|
629 |
|
|
630 |
|
int |
631 |
< |
isview(s) /* is this a view string? */ |
632 |
< |
char *s; |
631 |
> |
isview( /* is this a view string? */ |
632 |
> |
char *s |
633 |
> |
) |
634 |
|
{ |
635 |
< |
static char *altname[]={NULL,VIEWSTR,"rpict","rview","pinterp",NULL}; |
635 |
> |
static char *altname[]={NULL,VIEWSTR,"rpict","rview","rvu","rpiece","pinterp",NULL}; |
636 |
|
extern char *progname; |
637 |
< |
register char *cp; |
638 |
< |
register char **an; |
637 |
> |
char *cp; |
638 |
> |
char **an; |
639 |
|
/* add program name to list */ |
640 |
|
if (altname[0] == NULL) { |
641 |
|
for (cp = progname; *cp; cp++) |
646 |
|
} |
647 |
|
/* skip leading path */ |
648 |
|
cp = s; |
649 |
< |
while (*cp && *cp != ' ') |
649 |
> |
while (*cp && !isspace(*cp)) |
650 |
|
cp++; |
651 |
|
while (cp > s && !ISDIRSEP(cp[-1])) |
652 |
|
cp--; |
664 |
|
|
665 |
|
|
666 |
|
static int |
667 |
< |
gethview(s, v) /* get view from header */ |
668 |
< |
char *s; |
669 |
< |
register struct myview *v; |
667 |
> |
gethview( /* get view from header */ |
668 |
> |
char *s, |
669 |
> |
void *v |
670 |
> |
) |
671 |
|
{ |
672 |
< |
if (isview(s) && sscanview(v->hv, s) > 0) |
673 |
< |
v->ok++; |
672 |
> |
if (isview(s) && sscanview(((struct myview*)v)->hv, s) > 0) |
673 |
> |
((struct myview*)v)->ok++; |
674 |
|
return(0); |
675 |
|
} |
676 |
|
|
677 |
|
|
678 |
|
int |
679 |
< |
viewfile(fname, vp, rp) /* get view from file */ |
680 |
< |
char *fname; |
681 |
< |
VIEW *vp; |
682 |
< |
RESOLU *rp; |
679 |
> |
viewfile( /* get view from file */ |
680 |
> |
char *fname, |
681 |
> |
VIEW *vp, |
682 |
> |
RESOLU *rp |
683 |
> |
) |
684 |
|
{ |
685 |
|
struct myview mvs; |
686 |
|
FILE *fp; |
693 |
|
mvs.hv = vp; |
694 |
|
mvs.ok = 0; |
695 |
|
|
696 |
< |
getheader(fp, (int (*)(char *, char *))&gethview, (char *)&mvs); |
696 |
> |
getheader(fp, gethview, &mvs); |
697 |
|
|
698 |
|
if (rp != NULL && !fgetsresolu(rp, fp)) |
699 |
|
mvs.ok = 0; |
700 |
|
|
701 |
< |
fclose(fp); |
701 |
> |
if (fp != stdin) |
702 |
> |
fclose(fp); |
703 |
|
|
704 |
|
return(mvs.ok); |
705 |
|
} |