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) |
68 |
|
m->os = (char *)mxf; |
69 |
|
} |
70 |
|
|
71 |
< |
setmap(m, r, mxf->back.sca, mxf->back.xfm); |
71 |
> |
setmap(m, r, mxf->back.xfm, mxf->back.sca); |
72 |
|
|
73 |
|
if (!vardefined(sa[0])) |
74 |
|
loadfunc(sa[3]); |
79 |
|
objerror(m, WARNING, "compute error"); |
80 |
|
return; |
81 |
|
} |
82 |
< |
if (mxf->fore.xfm == NULL) |
83 |
< |
for (i = 0; i < 3; i++) |
84 |
< |
r->pert[i] += disp[i]; |
85 |
< |
else |
86 |
< |
for (i = 0; i < 3; i++) |
90 |
< |
r->pert[i] += ( disp[0]*mxf->fore.xfm[0][i] + |
91 |
< |
disp[1]*mxf->fore.xfm[1][i] + |
92 |
< |
disp[2]*mxf->fore.xfm[2][i] ) |
93 |
< |
/ mxf->fore.sca; |
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] * d; |
87 |
|
return; |
88 |
|
memerr: |
89 |
|
error(SYSTEM, "out of memory in t_func"); |