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) |
99 |
|
extern char *libpath; /* library search path */ |
100 |
|
char *ffname; |
101 |
|
|
102 |
< |
if ((ffname = getpath(fname, libpath)) == NULL) { |
102 |
> |
if ((ffname = getpath(fname, libpath, R_OK)) == NULL) { |
103 |
|
sprintf(errmsg, "cannot find function file \"%s\"", fname); |
104 |
|
error(USER, errmsg); |
105 |
|
} |
130 |
|
chanvalue(n) /* return channel n to calcomp */ |
131 |
|
register int n; |
132 |
|
{ |
133 |
< |
double res; |
133 |
> |
double sum; |
134 |
|
register RAY *r; |
135 |
|
|
136 |
< |
n--; /* for convenience */ |
136 |
> |
if (--n < 0) |
137 |
> |
goto badchan; |
138 |
|
|
139 |
< |
if (n < 0 || n > 10) |
137 |
< |
error(USER, "illegal channel number"); |
139 |
> |
if (n < 3) /* ray direction */ |
140 |
|
|
141 |
< |
if (n == 9) { /* distance */ |
141 |
> |
return( ( fray->rdir[0]*fxf.xfm[0][n] + |
142 |
> |
fray->rdir[1]*fxf.xfm[1][n] + |
143 |
> |
fray->rdir[2]*fxf.xfm[2][n] ) |
144 |
> |
/ fxf.sca ); |
145 |
|
|
146 |
< |
res = fray->rot; |
142 |
< |
for (r = fray->parent; r != NULL; r = r->parent) |
143 |
< |
res += r->rot; |
144 |
< |
res *= fxf.sca; |
146 |
> |
if (n < 6) /* surface normal */ |
147 |
|
|
148 |
< |
} else if (n == 10) { /* dot product */ |
148 |
> |
return( ( fray->ron[0]*fxf.xfm[0][n-3] + |
149 |
> |
fray->ron[1]*fxf.xfm[1][n-3] + |
150 |
> |
fray->ron[2]*fxf.xfm[2][n-3] ) |
151 |
> |
/ fxf.sca ); |
152 |
|
|
153 |
< |
res = fray->rod; |
153 |
> |
if (n < 9) /* intersection */ |
154 |
|
|
155 |
< |
} else if (n < 3) { /* ray direction */ |
156 |
< |
res = ( fray->rdir[0]*fxf.xfm[0][n] + |
157 |
< |
fray->rdir[1]*fxf.xfm[1][n] + |
158 |
< |
fray->rdir[2]*fxf.xfm[2][n] ) |
159 |
< |
/ fxf.sca ; |
160 |
< |
} else if (n < 6) { /* surface normal */ |
161 |
< |
res = ( fray->ron[0]*fxf.xfm[0][n-3] + |
162 |
< |
fray->ron[1]*fxf.xfm[1][n-3] + |
163 |
< |
fray->ron[2]*fxf.xfm[2][n-3] ) |
164 |
< |
/ fxf.sca ; |
165 |
< |
} else { /* intersection */ |
166 |
< |
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] ; |
155 |
> |
return( fray->rop[0]*fxf.xfm[0][n-6] + |
156 |
> |
fray->rop[1]*fxf.xfm[1][n-6] + |
157 |
> |
fray->rop[2]*fxf.xfm[2][n-6] + |
158 |
> |
fxf.xfm[3][n-6] ); |
159 |
> |
|
160 |
> |
if (n == 9) { /* distance */ |
161 |
> |
|
162 |
> |
sum = fray->rot; |
163 |
> |
for (r = fray->parent; r != NULL; r = r->parent) |
164 |
> |
sum += r->rot; |
165 |
> |
return(sum * fxf.sca); |
166 |
> |
|
167 |
|
} |
168 |
+ |
if (n == 10) /* dot product */ |
169 |
+ |
return(fray->rod); |
170 |
|
|
171 |
< |
return(res); |
171 |
> |
if (n == 11) /* scale */ |
172 |
> |
return(fxf.sca); |
173 |
> |
|
174 |
> |
if (n < 15) /* origin */ |
175 |
> |
return(fxf.xfm[3][n-12]); |
176 |
> |
|
177 |
> |
if (n < 18) /* i unit vector */ |
178 |
> |
return(fxf.xfm[0][n-15] / fxf.sca); |
179 |
> |
|
180 |
> |
if (n < 21) /* j unit vector */ |
181 |
> |
return(fxf.xfm[1][n-15] / fxf.sca); |
182 |
> |
|
183 |
> |
if (n < 24) /* k unit vector */ |
184 |
> |
return(fxf.xfm[2][n-21] / fxf.sca); |
185 |
> |
badchan: |
186 |
> |
error(USER, "illegal channel number"); |
187 |
|
} |