Triangle/Triangle.cpp File Reference

#include <NekMeshUtils/Triangle/Triangle.h>

Include dependency graph for Triangle/Triangle.cpp:

Go to the source code of this file.

Namespaces
	Nektar
	<
	Nektar::NekMeshUtils

Macros
#define	Absolute(a)   ((a) >= 0.0 ? (a) : -(a))
#define	Fast_Two_Sum_Tail(a, b, x, y)
#define	Fast_Two_Sum(a, b, x, y)
#define	Two_Sum_Tail(a, b, x, y)
#define	Two_Sum(a, b, x, y)
#define	Two_Diff_Tail(a, b, x, y)
#define	Two_Diff(a, b, x, y)
#define	Split(a, ahi, alo)
#define	Two_Product_Tail(a, b, x, y)
#define	Two_Product(a, b, x, y)
#define	Two_Product_Presplit(a, b, bhi, blo, x, y)
#define	Square_Tail(a, x, y)
#define	Square(a, x, y)
#define	Two_One_Sum(a1, a0, b, x2, x1, x0)
#define	Two_One_Diff(a1, a0, b, x2, x1, x0)
#define	Two_Two_Sum(a1, a0, b1, b0, x3, x2, x1, x0)
#define	Two_Two_Diff(a1, a0, b1, b0, x3, x2, x1, x0)
#define	Two_One_Product(a1, a0, b, x3, x2, x1, x0)

Macro Definition Documentation

#define Absolute

(

a

)

((a) >= 0.0 ? (a) : -(a))

Definition at line 1339 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::counterclockwiseadapt(), Nektar::NekMeshUtils::DelaunayTriangle::incircle(), Nektar::NekMeshUtils::DelaunayTriangle::incircleadaptTRI(), Nektar::NekMeshUtils::DelaunayTriangle::orient3d(), and Nektar::NekMeshUtils::DelaunayTriangle::orient3dadapt().

#define Fast_Two_Sum	(		a,
			b,
			x,
			y
	)

Value:

x = (double)(a + b);                                                       \
    Fast_Two_Sum_Tail(a, b, x, y)

Definition at line 1359 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::fast_expansion_sum_zeroelimTRI(), and Nektar::NekMeshUtils::DelaunayTriangle::scale_expansion_zeroelimTRI().

#define Fast_Two_Sum_Tail	(		a,
			b,
			x,
			y
	)

Value:

bvirt = x - a;                                                             \
    y     = b - bvirt

Definition at line 1355 of file Triangle/Triangle.cpp.

#define Split	(		a,
			ahi,
			alo
	)

Value:

c    = (double)(splitter * a);                                             \
    abig = (double)(c - a);                                                    \
    ahi  = c - abig;                                                           \
    alo  = a - ahi

Definition at line 1385 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::scale_expansion_zeroelimTRI().

#define Square	(		a,
			x,
			y
	)

Value:

x = (double)(a * a);                                                       \
    Square_Tail(a, x, y)

Definition at line 1422 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::incircleadaptTRI().

#define Square_Tail	(		a,
			x,
			y
	)

Value:

Split(a, ahi, alo);                                                        \
    err1 = x - (ahi * ahi);                                                    \
    err3 = err1 - ((ahi + ahi) * alo);                                         \
    y    = (alo * alo) - err3

Definition at line 1416 of file Triangle/Triangle.cpp.

#define Two_Diff	(		a,
			b,
			x,
			y
	)

Value:

x = (double)(a - b);                                                       \
    Two_Diff_Tail(a, b, x, y)

Definition at line 1381 of file Triangle/Triangle.cpp.

#define Two_Diff_Tail	(		a,
			b,
			x,
			y
	)

Value:

bvirt  = (double)(a - x);                                                  \
    avirt  = x + bvirt;                                                        \
    bround = bvirt - b;                                                        \
    around = a - avirt;                                                        \
    y      = around + bround

Definition at line 1374 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::counterclockwiseadapt(), Nektar::NekMeshUtils::DelaunayTriangle::incircleadaptTRI(), and Nektar::NekMeshUtils::DelaunayTriangle::orient3dadapt().

#define Two_One_Diff	(		a1,
			a0,
			b,
			x2,
			x1,
			x0
	)

Value:

Two_Diff(a0, b, _i, x0);                                                   \
    Two_Sum(a1, _i, x2, x1)

Definition at line 1433 of file Triangle/Triangle.cpp.

#define Two_One_Product	(		a1,
			a0,
			b,
			x3,
			x2,
			x1,
			x0
	)

Value:

Split(b, bhi, blo);                                                        \
    Two_Product_Presplit(a0, b, bhi, blo, _i, x0);                             \
    Two_Product_Presplit(a1, b, bhi, blo, _j, _0);                             \
    Two_Sum(_i, _0, _k, x1);                                                   \
    Fast_Two_Sum(_j, _k, x3, x2)

Definition at line 1447 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::orient3dadapt().

#define Two_One_Sum	(		a1,
			a0,
			b,
			x2,
			x1,
			x0
	)

Value:

Two_Sum(a0, b, _i, x0);                                                    \
    Two_Sum(a1, _i, x2, x1)

Definition at line 1429 of file Triangle/Triangle.cpp.

#define Two_Product	(		a,
			b,
			x,
			y
	)

Value:

x = (double)(a * b);                                                       \
    Two_Product_Tail(a, b, x, y)

Definition at line 1399 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::counterclockwiseadapt(), Nektar::NekMeshUtils::DelaunayTriangle::incircleadaptTRI(), and Nektar::NekMeshUtils::DelaunayTriangle::orient3dadapt().

#define Two_Product_Presplit	(		a,
			b,
			bhi,
			blo,
			x,
			y
	)

Value:

x = (double)(a * b);                                                       \
    Split(a, ahi, alo);                                                        \
    err1 = x - (ahi * bhi);                                                    \
    err2 = err1 - (alo * bhi);                                                 \
    err3 = err2 - (ahi * blo);                                                 \
    y    = (alo * blo) - err3

Definition at line 1406 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::scale_expansion_zeroelimTRI().

#define Two_Product_Tail	(		a,
			b,
			x,
			y
	)

Value:

Split(a, ahi, alo);                                                        \
    Split(b, bhi, blo);                                                        \
    err1 = x - (ahi * bhi);                                                    \
    err2 = err1 - (alo * bhi);                                                 \
    err3 = err2 - (ahi * blo);                                                 \
    y    = (alo * blo) - err3

Definition at line 1391 of file Triangle/Triangle.cpp.

#define Two_Sum	(		a,
			b,
			x,
			y
	)

Value:

x = (double)(a + b);                                                       \
    Two_Sum_Tail(a, b, x, y)

Definition at line 1370 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::fast_expansion_sum_zeroelimTRI(), and Nektar::NekMeshUtils::DelaunayTriangle::scale_expansion_zeroelimTRI().

#define Two_Sum_Tail	(		a,
			b,
			x,
			y
	)

Value:

bvirt  = (double)(x - a);                                                  \
    avirt  = x - bvirt;                                                        \
    bround = b - bvirt;                                                        \
    around = a - avirt;                                                        \
    y      = around + bround

Definition at line 1363 of file Triangle/Triangle.cpp.

#define Two_Two_Diff	(		a1,
			a0,
			b1,
			b0,
			x3,
			x2,
			x1,
			x0
	)

Value:

Two_One_Diff(a1, a0, b0, _j, _0, x0);                                      \
    Two_One_Diff(_j, _0, b1, x3, x2, x1)

Definition at line 1441 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::counterclockwiseadapt(), Nektar::NekMeshUtils::DelaunayTriangle::incircleadaptTRI(), and Nektar::NekMeshUtils::DelaunayTriangle::orient3dadapt().

#define Two_Two_Sum	(		a1,
			a0,
			b1,
			b0,
			x3,
			x2,
			x1,
			x0
	)

Value:

Two_One_Sum(a1, a0, b0, _j, _0, x0);                                       \
    Two_One_Sum(_j, _0, b1, x3, x2, x1)

Definition at line 1437 of file Triangle/Triangle.cpp.

Referenced by Nektar::NekMeshUtils::DelaunayTriangle::incircleadaptTRI().