69 lines
2.9 KiB
C
69 lines
2.9 KiB
C
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/*****************************************************************************/
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/* */
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/* Routines for Arbitrary Precision Floating-point Arithmetic */
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/* and Fast Robust Geometric Predicates */
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/* */
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/* Declarations */
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/* */
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/*****************************************************************************/
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#ifndef PREDICATES_H
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#define PREDICATES_H
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#include "tetgen.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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void exactinit(int verbose, int noexact, int nofilter, REAL maxx, REAL maxy,
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REAL maxz);
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int grow_expansion(int elen, REAL *e, REAL b, REAL *h);
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int grow_expansion_zeroelim(int elen, REAL *e, REAL b, REAL *h);
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int expansion_sum(int elen, REAL *e, int flen, REAL *f, REAL *h);
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int expansion_sum_zeroelim1(int elen, REAL *e, int flen, REAL *f, REAL *h);
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int expansion_sum_zeroelim2(int elen, REAL *e, int flen, REAL *f, REAL *h);
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int linear_expansion_sum(int elen, REAL *e, int flen, REAL *f, REAL *h);
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int linear_expansion_sum_zeroelim(int elen, REAL *e, int flen, REAL *f,
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REAL *h);
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int scale_expansion(int elen, REAL *e, REAL b, REAL *h);
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int scale_expansion_zeroelim(int elen, REAL *e, REAL b, REAL *h);
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int compress(int elen, REAL *e, REAL *h);
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REAL estimate(int elen, REAL *e);
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REAL orient2dfast(REAL *pa, REAL *pb, REAL *pc);
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REAL orient2dexact(REAL *pa, REAL *pb, REAL *pc);
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REAL orient2dslow(REAL *pa, REAL *pb, REAL *pc);
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REAL orient2d(REAL *pa, REAL *pb, REAL *pc);
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REAL orient3dfast(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL orient3dexact(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL orient3dslow(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL orient3d(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL incirclefast(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL incircleexact(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL incircleslow(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL incircle(REAL *pa, REAL *pb, REAL *pc, REAL *pd);
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REAL inspherefast(REAL *pa, REAL *pb, REAL *pc, REAL *pd, REAL *pe);
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REAL insphereexact(REAL *pa, REAL *pb, REAL *pc, REAL *pd, REAL *pe);
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REAL insphere(REAL *pa, REAL *pb, REAL *pc, REAL *pd, REAL *pe);
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REAL orient4dfast(REAL *pa, REAL *pb, REAL *pc, REAL *pd, REAL *pe,
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REAL aheight, REAL bheight, REAL cheight, REAL dheight,
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REAL eheight);
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REAL orient4dexact(REAL *pa, REAL *pb, REAL *pc, REAL *pd, REAL *pe,
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REAL aheight, REAL bheight, REAL cheight, REAL dheight,
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REAL eheight);
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REAL orient4d(REAL *pa, REAL *pb, REAL *pc, REAL *pd, REAL *pe,
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REAL aheight, REAL bheight, REAL cheight, REAL dheight,
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REAL eheight);
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#ifdef __cplusplus
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}
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#endif
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#endif
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