| 43 |
|
extern double varvalue(); |
| 44 |
|
extern int errno; |
| 45 |
|
FVECT disp; |
| 46 |
+ |
double d; |
| 47 |
|
register XFORM *mxf; |
| 48 |
|
register int i; |
| 49 |
|
register char **sa; |
| 56 |
|
mxf = (XFORM *)malloc(sizeof(XFORM)); |
| 57 |
|
if (mxf == NULL) |
| 58 |
|
goto memerr; |
| 58 |
– |
mxf->fore.sca = 1.0; |
| 59 |
– |
setident4(mxf->fore.xfm); |
| 59 |
|
if (xf(mxf->fore.xfm, &mxf->fore.sca, |
| 60 |
|
m->oargs.nsargs-4, sa+4) != m->oargs.nsargs-4) |
| 61 |
|
objerror(m, USER, "bad transform"); |
| 62 |
|
if (mxf->fore.sca < 0.0) |
| 63 |
|
mxf->fore.sca = -mxf->fore.sca; |
| 65 |
– |
mxf->back.sca = 1.0; |
| 66 |
– |
setident4(mxf->back.xfm); |
| 64 |
|
invxf(mxf->back.xfm, &mxf->back.sca, |
| 65 |
|
m->oargs.nsargs-4, sa+4); |
| 66 |
|
if (mxf->back.sca < 0.0) |
| 81 |
|
} |
| 82 |
|
multv3(disp, disp, mxf->fore.xfm); |
| 83 |
|
multv3(disp, disp, r->rofx); |
| 84 |
+ |
d = 1.0 / (mxf->fore.sca * r->rofs); |
| 85 |
|
for (i = 0; i < 3; i++) |
| 86 |
< |
r->pert[i] += disp[i] / (mxf->fore.sca * r->rofs); |
| 86 |
> |
r->pert[i] += disp[i] * d; |
| 87 |
|
return; |
| 88 |
|
memerr: |
| 89 |
|
error(SYSTEM, "out of memory in t_func"); |
