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13 |
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#include "ray.h" |
14 |
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|
15 |
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#include "octree.h" |
16 |
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|
17 |
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#include "rpaint.h" |
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19 |
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#include "random.h" |
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|
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|
22 |
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getrect(s, r) /* get a box */ |
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char *s; |
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register RECT *r; |
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{ |
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int x0, y0, x1, y1; |
27 |
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|
28 |
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if (*s && !strncmp(s, "all", strlen(s))) { |
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r->l = r->d = 0; |
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r->r = ourview.hresolu; |
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r->u = ourview.vresolu; |
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return(0); |
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} |
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if (sscanf(s, "%d %d %d %d", &x0, &y0, &x1, &y1) != 4) { |
35 |
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if (dev->getcur == NULL) |
36 |
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return(-1); |
37 |
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(*dev->comout)("Pick first corner\n"); |
38 |
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if ((*dev->getcur)(&x0, &y0) == ABORT) |
39 |
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return(-1); |
40 |
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(*dev->comout)("Pick second corner\n"); |
41 |
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if ((*dev->getcur)(&x1, &y1) == ABORT) |
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return(-1); |
43 |
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} |
44 |
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if (x0 < x1) { |
45 |
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r->l = x0; |
46 |
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r->r = x1; |
47 |
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} else { |
48 |
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r->l = x1; |
49 |
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r->r = x0; |
50 |
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} |
51 |
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if (y0 < y1) { |
52 |
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r->d = y0; |
53 |
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r->u = y1; |
54 |
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} else { |
55 |
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r->d = y1; |
56 |
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r->u = y0; |
57 |
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} |
58 |
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if (r->l < 0) r->l = 0; |
59 |
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if (r->d < 0) r->d = 0; |
60 |
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if (r->r > ourview.hresolu) r->r = ourview.hresolu; |
61 |
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if (r->u > ourview.vresolu) r->u = ourview.vresolu; |
62 |
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if (r->l > r->r) r->l = r->r; |
63 |
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if (r->d > r->u) r->d = r->u; |
64 |
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return(0); |
65 |
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} |
66 |
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|
67 |
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|
68 |
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getinterest(s, direc, vec, mp) /* get area of interest */ |
69 |
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char *s; |
70 |
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int direc; |
71 |
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FVECT vec; |
72 |
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double *mp; |
73 |
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{ |
74 |
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int x, y; |
75 |
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RAY thisray; |
76 |
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register int i; |
77 |
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|
78 |
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if (sscanf(s, "%lf", mp) != 1) |
79 |
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*mp = 1.0; |
80 |
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else if (*mp < -FTINY) /* negative zoom is reduction */ |
81 |
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*mp = -1.0 / *mp; |
82 |
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else if (*mp <= FTINY) { /* too small */ |
83 |
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error(COMMAND, "illegal magnification"); |
84 |
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return(-1); |
85 |
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} |
86 |
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if (sscanf(s, "%*lf %lf %lf %lf", &vec[0], &vec[1], &vec[2]) != 3) { |
87 |
+ |
if (dev->getcur == NULL) |
88 |
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return(-1); |
89 |
+ |
(*dev->comout)("Pick view center\n"); |
90 |
+ |
if ((*dev->getcur)(&x, &y) == ABORT) |
91 |
+ |
return(-1); |
92 |
+ |
rayview(thisray.rorg, thisray.rdir, &ourview, x+.5, y+.5); |
93 |
+ |
if (!direc || ourview.type == VT_PAR) { |
94 |
+ |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
95 |
+ |
if (!localhit(&thisray, &thescene)) { |
96 |
+ |
error(COMMAND, "not a local object"); |
97 |
+ |
return(-1); |
98 |
+ |
} |
99 |
+ |
} |
100 |
+ |
if (direc) |
101 |
+ |
if (ourview.type == VT_PAR) |
102 |
+ |
for (i = 0; i < 3; i++) |
103 |
+ |
vec[i] = thisray.rop[i] - ourview.vp[i]; |
104 |
+ |
else |
105 |
+ |
VCOPY(vec, thisray.rdir); |
106 |
+ |
else |
107 |
+ |
VCOPY(vec, thisray.rop); |
108 |
+ |
} else if (direc) |
109 |
+ |
for (i = 0; i < 3; i++) |
110 |
+ |
vec[i] -= ourview.vp[i]; |
111 |
+ |
return(0); |
112 |
+ |
} |
113 |
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|
114 |
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|
115 |
|
float * /* keep consistent with COLOR typedef */ |