| 38 |
|
|
| 39 |
|
if (initfile != NULL) { |
| 40 |
|
loadfunc(initfile); |
| 41 |
< |
scompile(NULL, "Dx=$1;Dy=$2;Dz=$3;"); |
| 42 |
< |
scompile(NULL, "Nx=$4;Ny=$5;Nz=$6;"); |
| 43 |
< |
scompile(NULL, "Px=$7;Py=$8;Pz=$9;"); |
| 44 |
< |
scompile(NULL, "T=$10;Rdot=$11;"); |
| 41 |
> |
scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
| 42 |
> |
scompile("Nx=$4;Ny=$5;Nz=$6;", NULL, 0); |
| 43 |
> |
scompile("Px=$7;Py=$8;Pz=$9;", NULL, 0); |
| 44 |
> |
scompile("T=$10;Rdot=$11;", NULL, 0); |
| 45 |
> |
scompile("S=$12;Tx=$13;Ty=$14;Tz=$15;", NULL, 0); |
| 46 |
> |
scompile("Ix=$16;Iy=$17;Iz=$18;", NULL, 0); |
| 47 |
> |
scompile("Jx=$19;Jy=$20;Jz=$21;", NULL, 0); |
| 48 |
> |
scompile("Kx=$22;Ky=$23;Kz=$24;", NULL, 0); |
| 49 |
|
funset("arg", 1, l_arg); |
| 50 |
|
funset("noise3", 3, l_noise3); |
| 51 |
|
funset("noise3a", 3, l_noise3a); |
| 79 |
|
mxf = (XF *)malloc(sizeof(XF)); |
| 80 |
|
if (mxf == NULL) |
| 81 |
|
goto memerr; |
| 78 |
– |
mxf->sca = 1.0; |
| 79 |
– |
setident4(mxf->xfm); |
| 82 |
|
if (invxf(mxf->xfm, &mxf->sca, n, sa) != n) |
| 83 |
|
objerror(m, USER, "bad transform"); |
| 84 |
|
if (mxf->sca < 0.0) |
| 89 |
|
return; |
| 90 |
|
memerr: |
| 91 |
|
error(SYSTEM, "out of memory in setfunc"); |
| 90 |
– |
#undef mxf |
| 92 |
|
} |
| 93 |
|
|
| 94 |
|
|
| 98 |
|
extern char *libpath; /* library search path */ |
| 99 |
|
char *ffname; |
| 100 |
|
|
| 101 |
< |
if ((ffname = getpath(fname, libpath)) == NULL) { |
| 101 |
> |
if ((ffname = getpath(fname, libpath, R_OK)) == NULL) { |
| 102 |
|
sprintf(errmsg, "cannot find function file \"%s\"", fname); |
| 103 |
|
error(USER, errmsg); |
| 104 |
|
} |
| 129 |
|
chanvalue(n) /* return channel n to calcomp */ |
| 130 |
|
register int n; |
| 131 |
|
{ |
| 132 |
< |
double res; |
| 132 |
> |
double sum; |
| 133 |
|
register RAY *r; |
| 134 |
|
|
| 135 |
< |
n--; /* for convenience */ |
| 135 |
> |
if (--n < 0) |
| 136 |
> |
goto badchan; |
| 137 |
|
|
| 138 |
< |
if (n < 0 || n > 10) |
| 137 |
< |
error(USER, "illegal channel number"); |
| 138 |
> |
if (n < 3) /* ray direction */ |
| 139 |
|
|
| 140 |
< |
if (n == 9) { /* distance */ |
| 140 |
> |
return( ( fray->rdir[0]*fxf.xfm[0][n] + |
| 141 |
> |
fray->rdir[1]*fxf.xfm[1][n] + |
| 142 |
> |
fray->rdir[2]*fxf.xfm[2][n] ) |
| 143 |
> |
/ fxf.sca ); |
| 144 |
|
|
| 145 |
< |
res = fray->rot; |
| 142 |
< |
for (r = fray->parent; r != NULL; r = r->parent) |
| 143 |
< |
res += r->rot; |
| 144 |
< |
res *= fxf.sca; |
| 145 |
> |
if (n < 6) /* surface normal */ |
| 146 |
|
|
| 147 |
< |
} else if (n == 10) { /* dot product */ |
| 147 |
> |
return( ( fray->ron[0]*fxf.xfm[0][n-3] + |
| 148 |
> |
fray->ron[1]*fxf.xfm[1][n-3] + |
| 149 |
> |
fray->ron[2]*fxf.xfm[2][n-3] ) |
| 150 |
> |
/ fxf.sca ); |
| 151 |
|
|
| 152 |
< |
res = fray->rod; |
| 152 |
> |
if (n < 9) /* intersection */ |
| 153 |
|
|
| 154 |
< |
} else if (n < 3) { /* ray direction */ |
| 155 |
< |
res = ( fray->rdir[0]*fxf.xfm[0][n] + |
| 156 |
< |
fray->rdir[1]*fxf.xfm[1][n] + |
| 157 |
< |
fray->rdir[2]*fxf.xfm[2][n] ) |
| 158 |
< |
/ fxf.sca ; |
| 159 |
< |
} else if (n < 6) { /* surface normal */ |
| 160 |
< |
res = ( fray->ron[0]*fxf.xfm[0][n-3] + |
| 161 |
< |
fray->ron[1]*fxf.xfm[1][n-3] + |
| 162 |
< |
fray->ron[2]*fxf.xfm[2][n-3] ) |
| 163 |
< |
/ fxf.sca ; |
| 164 |
< |
} else { /* intersection */ |
| 165 |
< |
res = fray->rop[0]*fxf.xfm[0][n-6] + |
| 162 |
< |
fray->rop[1]*fxf.xfm[1][n-6] + |
| 163 |
< |
fray->rop[2]*fxf.xfm[2][n-6] + |
| 164 |
< |
fxf.xfm[3][n-6] ; |
| 154 |
> |
return( fray->rop[0]*fxf.xfm[0][n-6] + |
| 155 |
> |
fray->rop[1]*fxf.xfm[1][n-6] + |
| 156 |
> |
fray->rop[2]*fxf.xfm[2][n-6] + |
| 157 |
> |
fxf.xfm[3][n-6] ); |
| 158 |
> |
|
| 159 |
> |
if (n == 9) { /* distance */ |
| 160 |
> |
|
| 161 |
> |
sum = fray->rot; |
| 162 |
> |
for (r = fray->parent; r != NULL; r = r->parent) |
| 163 |
> |
sum += r->rot; |
| 164 |
> |
return(sum * fxf.sca); |
| 165 |
> |
|
| 166 |
|
} |
| 167 |
+ |
if (n == 10) /* dot product */ |
| 168 |
+ |
return(fray->rod); |
| 169 |
|
|
| 170 |
< |
return(res); |
| 170 |
> |
if (n == 11) /* scale */ |
| 171 |
> |
return(fxf.sca); |
| 172 |
> |
|
| 173 |
> |
if (n < 15) /* origin */ |
| 174 |
> |
return(fxf.xfm[3][n-12]); |
| 175 |
> |
|
| 176 |
> |
if (n < 18) /* i unit vector */ |
| 177 |
> |
return(fxf.xfm[0][n-15] / fxf.sca); |
| 178 |
> |
|
| 179 |
> |
if (n < 21) /* j unit vector */ |
| 180 |
> |
return(fxf.xfm[1][n-15] / fxf.sca); |
| 181 |
> |
|
| 182 |
> |
if (n < 24) /* k unit vector */ |
| 183 |
> |
return(fxf.xfm[2][n-21] / fxf.sca); |
| 184 |
> |
badchan: |
| 185 |
> |
error(USER, "illegal channel number"); |
| 186 |
|
} |
