448 |
|
if (vp->vert > 360.) |
449 |
|
vp->vert = 360.; |
450 |
|
return; |
451 |
+ |
case VT_PLS: /* planisphere fisheye */ |
452 |
+ |
vp->horiz = sin((PI/180./2.)*vp->horiz) / |
453 |
+ |
(1.0 + cos((PI/180./2.)*vp->horiz)) / zf; |
454 |
+ |
vp->horiz *= vp->horiz; |
455 |
+ |
vp->horiz = (2.*180./PI)*acos((1. - vp->horiz) / |
456 |
+ |
(1. + vp->horiz)); |
457 |
+ |
vp->vert = sin((PI/180./2.)*vp->vert) / |
458 |
+ |
(1.0 + cos((PI/180./2.)*vp->vert)) / zf; |
459 |
+ |
vp->vert *= vp->vert; |
460 |
+ |
vp->vert = (2.*180./PI)*acos((1. - vp->vert) / |
461 |
+ |
(1. + vp->vert)); |
462 |
+ |
return; |
463 |
|
case VT_CYL: /* cylindrical panorama */ |
464 |
|
vp->horiz /= zf; |
465 |
|
if (vp->horiz > 360.) |