d4mingreedy2 Class Reference

#include <d4minboundary.h>

Inheritance diagram for d4mingreedy2:

Collaboration diagram for d4mingreedy2:

List of all members.

Public Member Functions
	d4mingreedy2 (d4tess &_tess)
bool const	eval (uintc a, uintc b)

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Detailed Description

Definition at line 31 of file d4minboundary.h.

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Constructor & Destructor Documentation

d4mingreedy2::d4mingreedy2

(

d4tess &

_tess

)

[inline]

Definition at line 35 of file d4minboundary.h.

    : d4minoperator(_tess) {} 

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Member Function Documentation

bool const d4mingreedy2::eval	(	uintc	a,
		uintc	b
	)			[virtual]

Reimplemented from d4minoperator.

Definition at line 158 of file d4minboundary.cpp.

References d4minoperator::approximatelyequal(), d4tri::getanticlockwiseface(), d4tess::isconvex(), d4tri::niInverse(), d4tri::pi, r, SHOW, d4minoperator::tess, d4tess::tet2to3(), d4minoperator::twotetrahedronMInvert(), and d4tess::vi.

{
  if (tess.isconvex(a,b)==false)
    return false;

  d4tri A(tess.vi[a]);
  d4tri B(tess.vi[b]);

  uint ai = A.niInverse(b);
  uint bi = B.niInverse(a);

  double const z = dist(A.pi[ai], B.pi[bi]);

  double l[3];
  uint u[3];
  A.getanticlockwiseface(u[0],u[1],u[2],ai);
  l[0] = dist(u[0],u[1]);
  l[1] = dist(u[1],u[2]);
  l[2] = dist(u[2],u[0]);



  // Order l[0],l[1],l[2] from smallest to largest.

  sort(l,l+3);

cout << SHOW(l[0]) << " ";
cout << SHOW(l[1]) << " ";
cout << SHOW(l[2]) << " ";
cout << SHOW(z) << endl;

  assert(l[2]!=0.0);
  
  // This is the ideal length of z when the tetrahedrons
  // have equal lengths and side lengths of 1.
  //double const e = 1.32287;

  // Ratio of l[2] to z;
  double const r = 1.5;

  if (z>l[2]*r)
  {
    cout << "large z" << endl;
    return twotetrahedronMInvert(a,ai,b,bi);
  }

  // Test for thin triangle boundary.
  if (approximatelyequal(l[2],l[1]))
  {
    cout << "thin triangle" << endl; 
    return twotetrahedronMInvert(a,ai,b,bi);
  }

  cout << "tet2to3" << endl;

  return tess.tet2to3(a,b);
}

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The documentation for this class was generated from the following files:

• tetrahedron/d4minboundary.h
• tetrahedron/d4minboundary.cpp