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#include "standard.h" |
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#include "paths.h" |
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#include "resolu.h" |
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#include "rterror.h" |
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#include "calcomp.h" |
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char XNAME[] = "X`SYS"; /* x function name */ |
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#define pvect(p) printf(vformat, (p)[0], (p)[1], (p)[2]) |
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char vformat[] = "%15.9g %15.9g %15.9g\n"; |
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char tsargs[] = "4 surf_dx surf_dy surf_dz surf.cal\n"; |
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char vformat[] = "%18.12g %18.12g %18.12g\n"; |
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char tsargs[] = "4 surf_dx surf_dy surf_dz surf.cal"; |
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char texname[] = "Phong"; |
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|
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int smooth = 0; /* apply smoothing? */ |
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typedef struct { |
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int valid; /* point is valid (vertex number) */ |
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int nvalid; /* normal is valid */ |
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FVECT p; /* vertex position */ |
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FVECT n; /* average normal */ |
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RREAL uv[2]; /* (u,v) position */ |
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void comprow(double s, POINT *row, int siz); |
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void compnorms(POINT *r0, POINT *r1, POINT *r2, int siz); |
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int norminterp(FVECT resmat[4], POINT *p0, POINT *p1, POINT *p2, POINT *p3); |
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void printhead(int ac, char **av); |
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int |
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} |
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row0++; row1++; row2++; |
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/* print header */ |
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printhead(argc, argv); |
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fputs("# ", stdout); |
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printargs(argc, argv, stdout); |
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eclock = 0; |
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/* initialize */ |
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comprow(-1.0/m, row0, n); |
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userror: |
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fprintf(stderr, "Usage: %s material name ", argv[0]); |
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fprintf(stderr, "x(s,t) y(s,t) z(s,t) m n [-s][-e expr][-f file]\n"); |
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fprintf(stderr, "x(s,t) y(s,t) z(s,t) m n [-s][-o][-e expr][-f file]\n"); |
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return 1; |
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} |
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{ |
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FILE *fp; |
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char word[64]; |
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register int size; |
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register RREAL *dp; |
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int size; |
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RREAL *dp; |
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|
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datarec.flags = HASBORDER; /* assume border values */ |
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datarec.m = m+1; |
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size--; |
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} |
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if (size == (m+n+1)*pointsize) { /* no border after all */ |
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dp = (RREAL *)realloc((void *)datarec.data, |
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dp = (RREAL *)realloc(datarec.data, |
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m*n*pointsize*sizeof(RREAL)); |
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if (dp != NULL) |
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datarec.data = dp; |
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) |
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{ |
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double u, v; |
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register int i, j; |
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register RREAL *dp; |
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int i, j; |
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RREAL *dp; |
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double d00, d01, d10, d11; |
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/* compute coordinates */ |
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u = argument(1); v = argument(2); |
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void |
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putobjrow( /* output vertex row to .OBJ */ |
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register POINT *rp, |
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POINT *rp, |
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int n |
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) |
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{ |
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static int nverts = 0; |
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static int nnorms = 0; |
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|
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for ( ; n-- >= 0; rp++) { |
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if (!rp->valid) |
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continue; |
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fputs("v ", stdout); |
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pvect(rp->p); |
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if (smooth && !ZEROVECT(rp->n)) |
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if (smooth && !ZEROVECT(rp->n)) { |
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printf("\tvn %.9g %.9g %.9g\n", |
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rp->n[0], rp->n[1], rp->n[2]); |
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rp->nvalid = ++nnorms; |
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} else |
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rp->nvalid = 0; |
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printf("\tvt %.9g %.9g\n", rp->uv[0], rp->uv[1]); |
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rp->valid = ++nverts; |
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} |
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if (!(ok1 | ok2)) |
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return; |
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if (objout) { /* output .OBJ faces */ |
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int p0n=0, p1n=0, p2n=0, p3n=0; |
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if (smooth) { |
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if (!ZEROVECT(p0->n)) |
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p0n = p0->valid; |
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if (!ZEROVECT(p1->n)) |
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p1n = p1->valid; |
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if (!ZEROVECT(p2->n)) |
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p2n = p2->valid; |
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if (!ZEROVECT(p3->n)) |
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p3n = p3->valid; |
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} |
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if (ok1 & ok2 && fdot(vc1,vc2) >= 1.0-FTINY*FTINY) { |
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printf("f %d/%d/%d %d/%d/%d %d/%d/%d %d/%d/%d\n", |
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p0->valid, p0->valid, p0n, |
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p1->valid, p1->valid, p1n, |
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p3->valid, p3->valid, p3n, |
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p2->valid, p2->valid, p2n); |
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p0->valid, p0->valid, p0->nvalid, |
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p1->valid, p1->valid, p1->nvalid, |
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p3->valid, p3->valid, p3->nvalid, |
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p2->valid, p2->valid, p2->nvalid); |
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return; |
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} |
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if (ok1) |
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printf("f %d/%d/%d %d/%d/%d %d/%d/%d\n", |
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p0->valid, p0->valid, p0n, |
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p1->valid, p1->valid, p1n, |
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p2->valid, p2->valid, p2n); |
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p0->valid, p0->valid, p0->nvalid, |
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p1->valid, p1->valid, p1->nvalid, |
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p2->valid, p2->valid, p2->nvalid); |
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if (ok2) |
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printf("f %d/%d/%d %d/%d/%d %d/%d/%d\n", |
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p2->valid, p2->valid, p2n, |
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p1->valid, p1->valid, p1n, |
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p3->valid, p3->valid, p3n); |
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p2->valid, p2->valid, p2->nvalid, |
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p1->valid, p1->valid, p1->nvalid, |
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p3->valid, p3->valid, p3->nvalid); |
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return; |
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} |
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/* compute normal interpolation */ |
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if (ok1 & ok2 && fdot(vc1,vc2) >= 1.0-FTINY*FTINY) { |
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printf("\n%s ", modname); |
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if (axis != -1) { |
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printf("texfunc %s\n", texname); |
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printf(tsargs); |
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printf("texfunc %s\n%s\n", texname, tsargs); |
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printf("0\n13\t%d\n", axis); |
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pvect(norm[0]); |
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pvect(norm[1]); |
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if (ok1) { |
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printf("\n%s ", modname); |
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if (axis != -1) { |
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printf("texfunc %s\n", texname); |
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printf(tsargs); |
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printf("texfunc %s\n%s\n", texname, tsargs); |
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printf("0\n13\t%d\n", axis); |
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pvect(norm[0]); |
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pvect(norm[1]); |
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if (ok2) { |
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printf("\n%s ", modname); |
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if (axis != -1) { |
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printf("texfunc %s\n", texname); |
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printf(tsargs); |
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printf("texfunc %s\n%s\n", texname, tsargs); |
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printf("0\n13\t%d\n", axis); |
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pvect(norm[0]); |
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pvect(norm[1]); |
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void |
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comprow( /* compute row of values */ |
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double s, |
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register POINT *row, |
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POINT *row, |
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int siz |
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) |
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{ |
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double st[2]; |
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int end; |
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int checkvalid; |
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register int i; |
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int i; |
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|
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if (smooth) { |
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i = -1; /* compute one past each end */ |
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|
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void |
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compnorms( /* compute row of averaged normals */ |
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register POINT *r0, |
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register POINT *r1, |
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register POINT *r2, |
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POINT *r0, |
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> |
POINT *r1, |
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POINT *r2, |
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int siz |
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) |
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{ |
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int |
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norminterp( /* compute normal interpolation */ |
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register FVECT resmat[4], |
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FVECT resmat[4], |
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POINT *p0, |
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POINT *p1, |
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POINT *p2, |
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#define u ((ax+1)%3) |
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#define v ((ax+2)%3) |
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|
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register int ax; |
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int ax; |
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MAT4 eqnmat; |
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FVECT v1; |
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register int i, j; |
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> |
int i, j; |
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|
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if (!smooth) /* no interpolation if no smoothing */ |
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return(-1); |
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#undef u |
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#undef v |
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} |
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|
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|
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void |
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eputs(msg) |
591 |
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char *msg; |
592 |
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{ |
593 |
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fputs(msg, stderr); |
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} |
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|
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|
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void |
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wputs(msg) |
599 |
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char *msg; |
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{ |
601 |
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eputs(msg); |
602 |
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} |
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|
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|
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void |
606 |
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quit(code) |
607 |
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int code; |
608 |
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{ |
609 |
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exit(code); |
610 |
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} |
611 |
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|
612 |
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|
613 |
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void |
614 |
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printhead( /* print command header */ |
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register int ac, |
616 |
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register char **av |
617 |
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) |
618 |
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{ |
619 |
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putchar('#'); |
620 |
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while (ac--) { |
621 |
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putchar(' '); |
622 |
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fputs(*av++, stdout); |
623 |
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} |
624 |
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putchar('\n'); |
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} |
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