--- ray/src/gen/genblinds.c 2003/02/22 02:07:23 2.9 +++ ray/src/gen/genblinds.c 2003/06/08 12:03:09 2.10 @@ -1,5 +1,5 @@ #ifndef lint -static const char RCSid[] = "$Id: genblinds.c,v 2.9 2003/02/22 02:07:23 greg Exp $"; +static const char RCSid[] = "$Id: genblinds.c,v 2.10 2003/06/08 12:03:09 schorsch Exp $"; #endif /* * genblind2.c - make some curved or flat venetian blinds. @@ -18,6 +18,7 @@ static const char RCSid[] = "$Id: genblinds.c,v 2.9 20 #include #include #include +#include #define PI 3.14159265358979323846 #define DELTA 10. /* MINIMAL SUSTAINED ANGLE IN DEGREES */ @@ -29,6 +30,60 @@ double height; int nslats, nsurf; + +makeflat(w,d,a) +double w, d, a; +{ + double h; + + h = d*sin(a); + d *= cos(a); + baseflat[0][0] = 0.0; + baseflat[0][1] = 0.0; + baseflat[0][2] = 0.0; + baseflat[1][0] = 0.0; + baseflat[1][1] = w; + baseflat[1][2] = 0.0; + baseflat[2][0] = d; + baseflat[2][1] = w; + baseflat[2][2] = h; + baseflat[3][0] = d; + baseflat[3][1] = 0.0; + baseflat[3][2] = h; + +} + + +printslat(n) /* print slat # n */ +int n; +{ + register int i, k; + + for (k=0; k < nsurf; k++) { + printf("\n%s polygon %s.%d.%d\n", material, name, n, k); + printf("0\n0\n12\n"); + for (i = 0; i < 4; i++) + printf("\t%18.12g\t%18.12g\t%18.12g\n", + baseblind[i][0][k], + baseblind[i][1][k], + baseblind[i][2][k] + height*(n-.5)/nslats); + } +} + + +printhead(ac, av) /* print command header */ +register int ac; +register char **av; +{ + putchar('#'); + while (ac--) { + putchar(' '); + fputs(*av++, stdout); + } + putchar('\n'); +} + + main(argc, argv) int argc; char *argv[]; @@ -65,7 +120,7 @@ char *argv[]; /* HOW MANY ELEMENTARY SURFACES SHOULD BE CALCULATED ? */ - nsurf = (theta / ((PI/180.)*DELTA)) + 1; + nsurf = (int)(theta / ((PI/180.)*DELTA)) + 1; /* WHAT IS THE DEPTH OF THE ELEMENTARY SURFACES ? */ @@ -146,54 +201,4 @@ userr: } -makeflat(w,d,a) -double w, d, a; -{ - double h; - h = d*sin(a); - d *= cos(a); - baseflat[0][0] = 0.0; - baseflat[0][1] = 0.0; - baseflat[0][2] = 0.0; - baseflat[1][0] = 0.0; - baseflat[1][1] = w; - baseflat[1][2] = 0.0; - baseflat[2][0] = d; - baseflat[2][1] = w; - baseflat[2][2] = h; - baseflat[3][0] = d; - baseflat[3][1] = 0.0; - baseflat[3][2] = h; - -} - - -printslat(n) /* print slat # n */ -int n; -{ - register int i, k; - - for (k=0; k < nsurf; k++) { - printf("\n%s polygon %s.%d.%d\n", material, name, n, k); - printf("0\n0\n12\n"); - for (i = 0; i < 4; i++) - printf("\t%18.12g\t%18.12g\t%18.12g\n", - baseblind[i][0][k], - baseblind[i][1][k], - baseblind[i][2][k] + height*(n-.5)/nslats); - } -} - - -printhead(ac, av) /* print command header */ -register int ac; -register char **av; -{ - putchar('#'); - while (ac--) { - putchar(' '); - fputs(*av++, stdout); - } - putchar('\n'); -}