59 |
|
e_ies(), /* IES luminaire file */ |
60 |
|
e_include(), /* include file */ |
61 |
|
e_sph(), /* sphere */ |
62 |
+ |
e_cmix(), /* color mixtures */ |
63 |
+ |
e_cspec(), /* color spectra */ |
64 |
|
e_cyl(), /* cylinder */ |
65 |
|
e_cone(), /* cone */ |
66 |
+ |
e_prism(), /* prism */ |
67 |
|
e_ring(), /* ring */ |
68 |
|
e_torus(); /* torus */ |
69 |
|
|
106 |
|
ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX; |
107 |
|
} else |
108 |
|
uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF; |
109 |
+ |
if (mg_ehand[MG_E_PRISM] == NULL) { |
110 |
+ |
mg_ehand[MG_E_PRISM] = e_prism; |
111 |
+ |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
112 |
+ |
} else |
113 |
+ |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
114 |
|
if (mg_ehand[MG_E_TORUS] == NULL) { |
115 |
|
mg_ehand[MG_E_TORUS] = e_torus; |
116 |
|
ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX; |
117 |
|
} else |
118 |
|
uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF; |
119 |
+ |
if (mg_ehand[MG_E_COLOR] != NULL) { |
120 |
+ |
if (mg_ehand[MG_E_CMIX] == NULL) { |
121 |
+ |
mg_ehand[MG_E_CMIX] = e_cmix; |
122 |
+ |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX; |
123 |
+ |
} |
124 |
+ |
if (mg_ehand[MG_E_CSPEC] == NULL) { |
125 |
+ |
mg_ehand[MG_E_CSPEC] = e_cspec; |
126 |
+ |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX; |
127 |
+ |
} |
128 |
+ |
} |
129 |
|
/* check for consistency */ |
130 |
|
if (mg_ehand[MG_E_FACE] != NULL) |
131 |
|
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
132 |
< |
if (mg_ehand[MG_E_CXY] != NULL) |
132 |
> |
if (mg_ehand[MG_E_CXY] != NULL || mg_ehand[MG_E_CSPEC] != NULL || |
133 |
> |
mg_ehand[MG_E_CMIX] != NULL) |
134 |
|
uneed |= 1<<MG_E_COLOR; |
135 |
|
if (mg_ehand[MG_E_RD] != NULL || mg_ehand[MG_E_TD] != NULL || |
136 |
|
mg_ehand[MG_E_ED] != NULL || |
150 |
|
e_supp[MG_E_POINT] = c_hvertex; |
151 |
|
if (ineed & 1<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex) |
152 |
|
e_supp[MG_E_NORMAL] = c_hvertex; |
153 |
+ |
if (ineed & 1<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor) |
154 |
+ |
e_supp[MG_E_COLOR] = c_hcolor; |
155 |
+ |
if (ineed & 1<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor) |
156 |
+ |
e_supp[MG_E_CXY] = c_hcolor; |
157 |
+ |
if (ineed & 1<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor) |
158 |
+ |
e_supp[MG_E_CSPEC] = c_hcolor; |
159 |
+ |
if (ineed & 1<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor) |
160 |
+ |
e_supp[MG_E_CMIX] = c_hcolor; |
161 |
|
/* discard remaining entities */ |
162 |
|
for (i = 0; i < MG_NENTITIES; i++) |
163 |
|
if (mg_ehand[i] == NULL) |
215 |
|
|
216 |
|
ctx->lineno = 0; |
217 |
|
if (fn == NULL) { |
218 |
< |
ctx->fname = "<stdin>"; |
218 |
> |
strcpy(ctx->fname, "<stdin>"); |
219 |
|
ctx->fp = stdin; |
220 |
|
ctx->prev = mg_file; |
221 |
|
mg_file = ctx; |
227 |
|
olen = cp - mg_file->fname + 1; |
228 |
|
else |
229 |
|
olen = 0; |
203 |
– |
ctx->fname = (char *)malloc(olen+strlen(fn)+1); |
204 |
– |
if (ctx->fname == NULL) |
205 |
– |
return(MG_EMEM); |
230 |
|
if (olen) |
231 |
|
strcpy(ctx->fname, mg_file->fname); |
232 |
|
strcpy(ctx->fname+olen, fn); |
233 |
|
ctx->fp = fopen(ctx->fname, "r"); |
234 |
< |
if (ctx->fp == NULL) { |
211 |
< |
free((MEM_PTR)ctx->fname); |
234 |
> |
if (ctx->fp == NULL) |
235 |
|
return(MG_ENOFILE); |
213 |
– |
} |
236 |
|
ctx->prev = mg_file; /* establish new context */ |
237 |
|
mg_file = ctx; |
238 |
|
return(MG_OK); |
248 |
|
if (ctx->fp == stdin) |
249 |
|
return; /* don't close standard input */ |
250 |
|
fclose(ctx->fp); |
229 |
– |
free((MEM_PTR)ctx->fname); |
251 |
|
} |
252 |
|
|
253 |
|
|
886 |
|
if ((rv = handle_it(MG_E_FACE, 5, fent)) != MG_OK) |
887 |
|
return(rv); |
888 |
|
} |
889 |
+ |
} |
890 |
+ |
return(MG_OK); |
891 |
+ |
} |
892 |
+ |
|
893 |
+ |
|
894 |
+ |
static int |
895 |
+ |
e_prism(ac, av) /* turn a prism into polygons */ |
896 |
+ |
int ac; |
897 |
+ |
char **av; |
898 |
+ |
{ |
899 |
+ |
static char p[3][24]; |
900 |
+ |
static char *vent[4] = {mg_ename[MG_E_VERTEX],NULL,"="}; |
901 |
+ |
static char *pent[5] = {mg_ename[MG_E_POINT],p[0],p[1],p[2]}; |
902 |
+ |
char *newav[MG_MAXARGC], nvn[MG_MAXARGC-1][8]; |
903 |
+ |
double length; |
904 |
+ |
FVECT v1, v2, v3, norm; |
905 |
+ |
register C_VERTEX *cv; |
906 |
+ |
C_VERTEX *cv0; |
907 |
+ |
int rv; |
908 |
+ |
register int i, j; |
909 |
+ |
|
910 |
+ |
if (ac < 5) |
911 |
+ |
return(MG_EARGC); |
912 |
+ |
if (!isflt(av[ac-1])) |
913 |
+ |
return(MG_ETYPE); |
914 |
+ |
length = atof(av[ac-1]); |
915 |
+ |
if (length <= FTINY && length >= -FTINY) |
916 |
+ |
return(MG_EILL); |
917 |
+ |
/* do bottom face */ |
918 |
+ |
newav[0] = mg_ename[MG_E_FACE]; |
919 |
+ |
for (i = 1; i < ac-1; i++) |
920 |
+ |
newav[i] = av[i]; |
921 |
+ |
newav[i] = NULL; |
922 |
+ |
if ((rv = handle_it(MG_E_FACE, i, newav)) != MG_OK) |
923 |
+ |
return(rv); |
924 |
+ |
/* compute face normal */ |
925 |
+ |
if ((cv0 = c_getvert(av[1])) == NULL) |
926 |
+ |
return(MG_EUNDEF); |
927 |
+ |
norm[0] = norm[1] = norm[2] = 0.; |
928 |
+ |
v1[0] = v1[1] = v1[2] = 0.; |
929 |
+ |
for (i = 2; i < ac-1; i++) { |
930 |
+ |
if ((cv = c_getvert(av[i])) == NULL) |
931 |
+ |
return(MG_EUNDEF); |
932 |
+ |
v2[0] = cv->p[0] - cv0->p[0]; |
933 |
+ |
v2[1] = cv->p[1] - cv0->p[1]; |
934 |
+ |
v2[2] = cv->p[2] - cv0->p[2]; |
935 |
+ |
fcross(v3, v1, v2); |
936 |
+ |
norm[0] += v3[0]; |
937 |
+ |
norm[1] += v3[1]; |
938 |
+ |
norm[2] += v3[2]; |
939 |
+ |
VCOPY(v1, v2); |
940 |
+ |
} |
941 |
+ |
if (normalize(norm) == 0.) |
942 |
+ |
return(MG_EILL); |
943 |
+ |
/* create moved vertices */ |
944 |
+ |
for (i = 1; i < ac-1; i++) { |
945 |
+ |
sprintf(nvn[i-1], "_pv%d", i); |
946 |
+ |
vent[1] = nvn[i-1]; |
947 |
+ |
if ((rv = handle_it(MG_E_VERTEX, 3, vent)) != MG_OK) |
948 |
+ |
return(rv); |
949 |
+ |
cv = c_getvert(av[i]); /* checked above */ |
950 |
+ |
for (j = 0; j < 3; j++) |
951 |
+ |
sprintf(p[j], FLTFMT, cv->p[j] - length*norm[j]); |
952 |
+ |
if ((rv = handle_it(MG_E_POINT, 4, pent)) != MG_OK) |
953 |
+ |
return(rv); |
954 |
+ |
newav[ac-1-i] = nvn[i-1]; /* reverse */ |
955 |
+ |
} |
956 |
+ |
/* do top face */ |
957 |
+ |
if ((rv = handle_it(MG_E_FACE, ac-1, newav)) != MG_OK) |
958 |
+ |
return(rv); |
959 |
+ |
/* do the side faces */ |
960 |
+ |
newav[5] = NULL; |
961 |
+ |
newav[3] = av[ac-2]; |
962 |
+ |
newav[4] = nvn[ac-3]; |
963 |
+ |
for (i = 1; i < ac-1; i++) { |
964 |
+ |
newav[1] = nvn[i-1]; |
965 |
+ |
newav[2] = av[i]; |
966 |
+ |
if ((rv = handle_it(MG_E_FACE, 5, newav)) != MG_OK) |
967 |
+ |
return(rv); |
968 |
+ |
newav[3] = newav[2]; |
969 |
+ |
newav[4] = newav[1]; |
970 |
+ |
} |
971 |
+ |
return(MG_OK); |
972 |
+ |
} |
973 |
+ |
|
974 |
+ |
|
975 |
+ |
static int |
976 |
+ |
e_cspec(ac, av) /* handle spectral color */ |
977 |
+ |
int ac; |
978 |
+ |
char **av; |
979 |
+ |
{ |
980 |
+ |
static char xbuf[24], ybuf[24]; |
981 |
+ |
static char *ccom[4] = {mg_ename[MG_E_CXY], xbuf, ybuf}; |
982 |
+ |
int rv; |
983 |
+ |
|
984 |
+ |
c_ccvt(c_ccolor, C_CSXY); |
985 |
+ |
/* if it's really their handler, use it */ |
986 |
+ |
if (mg_ehand[MG_E_CXY] != c_hcolor) { |
987 |
+ |
sprintf(xbuf, "%.4f", c_ccolor->cx); |
988 |
+ |
sprintf(ybuf, "%.4f", c_ccolor->cy); |
989 |
+ |
if ((rv = handle_it(MG_E_CXY, 3, ccom)) != MG_OK) |
990 |
+ |
return(rv); |
991 |
+ |
} |
992 |
+ |
return(MG_OK); |
993 |
+ |
} |
994 |
+ |
|
995 |
+ |
|
996 |
+ |
static int |
997 |
+ |
e_cmix(ac, av) /* handle mixing of colors */ |
998 |
+ |
int ac; |
999 |
+ |
char **av; |
1000 |
+ |
{ |
1001 |
+ |
char wl[2][6], vbuf[C_CNSS][24]; |
1002 |
+ |
char *newav[C_CNSS+4]; |
1003 |
+ |
int rv; |
1004 |
+ |
register int i; |
1005 |
+ |
/* |
1006 |
+ |
* Contorted logic works as follows: |
1007 |
+ |
* 1. the colors are already mixed in c_hcolor() support function |
1008 |
+ |
* 2. if we would handle a spectral result, make sure it's not |
1009 |
+ |
* 3. if c_hcolor() would handle a spectral result, don't bother |
1010 |
+ |
* 4. otherwise, make cspec entity and pass it to their handler |
1011 |
+ |
* 5. if we have only xy results, handle it as c_spec() would |
1012 |
+ |
*/ |
1013 |
+ |
if (mg_ehand[MG_E_CSPEC] == e_cspec) |
1014 |
+ |
c_ccvt(c_ccolor, C_CSXY); |
1015 |
+ |
else if (c_ccolor->flags & C_CDSPEC) { |
1016 |
+ |
if (mg_ehand[MG_E_CSPEC] != c_hcolor) { |
1017 |
+ |
sprintf(wl[0], "%d", C_CMINWL); |
1018 |
+ |
sprintf(wl[1], "%d", C_CMAXWL); |
1019 |
+ |
newav[0] = mg_ename[MG_E_CSPEC]; |
1020 |
+ |
newav[1] = wl[0]; |
1021 |
+ |
newav[2] = wl[1]; |
1022 |
+ |
for (i = 0; i < C_CNSS; i++) { |
1023 |
+ |
sprintf(vbuf[i], "%.6f", |
1024 |
+ |
(double)c_ccolor->ssamp[i] / |
1025 |
+ |
c_ccolor->ssum); |
1026 |
+ |
newav[i+3] = vbuf[i]; |
1027 |
+ |
} |
1028 |
+ |
newav[C_CNSS+3] = NULL; |
1029 |
+ |
if ((rv = handle_it(MG_E_CSPEC, C_CNSS+3, newav)) != MG_OK) |
1030 |
+ |
return(rv); |
1031 |
+ |
} |
1032 |
+ |
return(MG_OK); |
1033 |
+ |
} |
1034 |
+ |
if (mg_ehand[MG_E_CXY] != c_hcolor) { |
1035 |
+ |
sprintf(vbuf[0], "%.4f", c_ccolor->cx); |
1036 |
+ |
sprintf(vbuf[1], "%.4f", c_ccolor->cy); |
1037 |
+ |
newav[0] = mg_ename[MG_E_CXY]; |
1038 |
+ |
newav[1] = vbuf[0]; |
1039 |
+ |
newav[2] = vbuf[1]; |
1040 |
+ |
newav[3] = NULL; |
1041 |
+ |
if ((rv = handle_it(MG_E_CXY, 3, newav)) != MG_OK) |
1042 |
+ |
return(rv); |
1043 |
|
} |
1044 |
|
return(MG_OK); |
1045 |
|
} |