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| 20 |
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#include "face.h" |
| 21 |
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| 22 |
< |
#define SRCINC 8 /* realloc increment for array */ |
| 22 |
> |
#define SRCINC 32 /* realloc increment for array */ |
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| 24 |
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SRCREC *source = NULL; /* our list of sources */ |
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int nsources = 0; /* the number of sources */ |
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src->so = so; |
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if (so->oargs.nfargs != 4) |
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objerror(so, USER, "bad arguments"); |
| 148 |
< |
src->sflags |= SDISTANT; |
| 148 |
> |
src->sflags |= (SDISTANT|SCIR); |
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VCOPY(src->sloc, so->oargs.farg); |
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if (normalize(src->sloc) == 0.0) |
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objerror(so, USER, "zero direction"); |
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objerror(so, USER, "bad # arguments"); |
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if (so->oargs.farg[3] <= FTINY) |
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objerror(so, USER, "illegal source radius"); |
| 177 |
+ |
src->sflags |= SCIR; |
| 178 |
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VCOPY(src->sloc, so->oargs.farg); |
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src->srad = so->oargs.farg[3]; |
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src->ss2 = PI * src->srad * src->srad; |
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for (i = 0; i < 3; i++) |
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src->ss[SU][i] = src->ss[SV][i] = src->ss[SW][i] = 0.0; |
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for (i = 0; i < 3; i++) |
| 184 |
< |
src->ss[i][i] = .7236 * so->oargs.farg[3]; |
| 184 |
> |
src->ss[i][i] = 0.7236 * so->oargs.farg[3]; |
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} |
| 186 |
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| 187 |
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VCOPY(src->sloc, CO_P0(co)); |
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if (CO_R0(co) > 0.0) |
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objerror(so, USER, "cannot hit source center"); |
| 204 |
< |
src->sflags |= SFLAT; |
| 204 |
> |
src->sflags |= (SFLAT|SCIR); |
| 205 |
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VCOPY(src->snorm, co->ad); |
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src->srad = CO_R1(co); |
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src->ss2 = PI * src->srad * src->srad; |
| 399 |
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{ |
| 400 |
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FVECT cent, c1, c2; |
| 401 |
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double rad2, d; |
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– |
register int i; |
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/* move centers to common plane */ |
| 403 |
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d = DOT(sp1->aim, dir); |
| 404 |
< |
for (i = 0; i < 3; i++) |
| 405 |
< |
c1[i] = sp1->aim[i] - d*dir[i]; |
| 404 |
> |
VSUM(c1, sp1->aim, dir, -d); |
| 405 |
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d = DOT(sp2->aim, dir); |
| 406 |
< |
for (i = 0; i < 3; i++) |
| 408 |
< |
c2[i] = sp2->aim[i] - d*dir[i]; |
| 406 |
> |
VSUM(c2, sp2->aim, dir, -d); |
| 407 |
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/* compute overlap */ |
| 408 |
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rad2 = intercircle(cent, c1, c2, sp1->siz/PI, sp2->siz/PI); |
| 409 |
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if (rad2 <= FTINY) |
| 439 |
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{ |
| 440 |
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FVECT onorm; |
| 441 |
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double offs, d, dist; |
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– |
register int i; |
| 442 |
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| 443 |
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offs = getplaneq(onorm, op); |
| 444 |
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d = -DOT(onorm, sp->aim); |
| 447 |
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dist = (DOT(pos, onorm) - offs)/d; |
| 448 |
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if (dist < 0.) |
| 449 |
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return(0.); |
| 450 |
< |
for (i = 0; i < 3; i++) |
| 454 |
< |
oc[i] = pos[i] + dist*sp->aim[i]; |
| 450 |
> |
VSUM(oc, pos, sp->aim, dist); |
| 451 |
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return(sp->siz*dist*dist/PI/(d*d)); |
| 452 |
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} |
| 453 |
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| 461 |
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{ |
| 462 |
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FVECT onorm; |
| 463 |
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double offs, d, dist; |
| 468 |
– |
register int i; |
| 464 |
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| 465 |
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offs = getplaneq(onorm, op); |
| 466 |
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d = -DOT(onorm, dir); |
| 467 |
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if (d >= -FTINY && d <= FTINY) |
| 468 |
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return(0.); |
| 469 |
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dist = (DOT(sp->aim, onorm) - offs)/d; |
| 470 |
< |
for (i = 0; i < 3; i++) |
| 476 |
< |
oc[i] = sp->aim[i] + dist*dir[i]; |
| 470 |
> |
VSUM(oc, sp->aim, dir, dist); |
| 471 |
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return(sp->siz/PI/(d*d)); |
| 472 |
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} |
| 473 |
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|
| 480 |
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{ |
| 481 |
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double a2, d2, l; |
| 482 |
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FVECT disp; |
| 489 |
– |
register int i; |
| 483 |
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|
| 484 |
< |
for (i = 0; i < 3; i++) |
| 492 |
< |
disp[i] = c2[i] - c1[i]; |
| 484 |
> |
VSUB(disp, c2, c1); |
| 485 |
|
d2 = DOT(disp,disp); |
| 486 |
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/* circle within overlap? */ |
| 487 |
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if (r1s < r2s) { |
| 501 |
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return(0.); |
| 502 |
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/* overlap, compute center */ |
| 503 |
|
l = sqrt((r1s - a2)/d2); |
| 504 |
< |
for (i = 0; i < 3; i++) |
| 513 |
< |
cc[i] = c1[i] + l*disp[i]; |
| 504 |
> |
VSUM(cc, c1, disp, l); |
| 505 |
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return(a2); |
| 506 |
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} |
