d4tri Class Reference

: A linked tetrahedron data structure. More...

#include <d4tri.h>

Collaboration diagram for d4tri:

List of all members.

Public Member Functions
uintc	piInverse (uintc gpt) const
uintc	piInverse (bool &res, uintc neib) const
uintc	niInverse (uintc neib) const
uintc	niInverse (bool &res, uintc neib) const
	d4tri ()
	d4tri (uintc a, uintc b, uintc c, uintc d, uintc na=0, uintc nb=0, uintc nc=0, uintc nd=0)
void	construct (uintc a, uintc b, uintc c, uintc d, uintc na, uintc nb, uintc nc, uintc nd)
void	getanticlockwiseface (uint &a, uint &b, uint &c, uintc face) const
void	getclockwiseface (uint &a, uint &b, uint &c, uintc face) const
boolc	isonboundary () const
boolc	isavertex (uintc gpt) const
void	setnull ()
boolc	isnull () const
boolc	hassamepoints (d4tri const &w) const
void	niReset (uintc from, uintc to)
uint &	niFrompiInverse (uintc gpt)
ostream &	print (ostream &os) const
Public Attributes
uint	pi [4]
uint	ni [4]

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Detailed Description

: A linked tetrahedron data structure.

Definition at line 13 of file d4tri.h.

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Constructor & Destructor Documentation

d4tri::d4tri

(

)

Definition at line 9 of file d4tri.cpp.

References ni, and pi.

{
  for (uint i=0; i<4; ++i)
  {
    pi[i] = 0;
    ni[i] = 0;
  }
}

d4tri::d4tri	(	uintc	a,
		uintc	b,
		uintc	c,
		uintc	d,
		uintc	na = 0,
		uintc	nb = 0,
		uintc	nc = 0,
		uintc	nd = 0
	)

Definition at line 19 of file d4tri.cpp.

{ 
  construct(a,b,c,d,na,nb,nc,nd); 
}

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Member Function Documentation

void d4tri::construct	(	uintc	a,
		uintc	b,
		uintc	c,
		uintc	d,
		uintc	na,
		uintc	nb,
		uintc	nc,
		uintc	nd
	)

Definition at line 213 of file d4tri.cpp.

Referenced by d4tess::tet2to3_().

{
  pi[0] = a;
  pi[1] = b;
  pi[2] = c;
  pi[3] = d;
  ni[0] = na;
  ni[1] = nb;
  ni[2] = nc;
  ni[3] = nd;
};

void d4tri::getanticlockwiseface	(	uint &	a,
		uint &	b,
		uint &	c,
		uintc	face
	)			const

Definition at line 236 of file d4tri.cpp.

Referenced by d4mingreedy2::eval(), and d4tess::tet2to3_().

{
  switch (face)
  {
    case 0:
      a=2; b=1; c=3;
      break;

    case 1:
      a=0; b=2; c=3;
      break;

    case 2:
      a=1; b=0; c=3;
      break;

    case 3:
      a=0; b=1; c=2;
      break;

    default:
      assert(false);
  }
}

void d4tri::getclockwiseface	(	uint &	a,
		uint &	b,
		uint &	c,
		uintc	face
	)			const

Definition at line 267 of file d4tri.cpp.

Referenced by d4minboundary::eval(), and d4tess::tet2to3().

{
  switch (face)
  {
    case 0:
      a=3; b=1; c=2;
      break;

    case 1:
      a=3; b=2; c=0;
      break;

    case 2:
      a=3; b=0; c=1;
      break;

    case 3:
      a=2; b=1; c=0;
      break;

    default:
      assert(false);
  }

//  uint a2,c2;
//  getanticlockwiseface(a2,b,c2,face);

//  a=c2;
//  c=a2;
}

boolc d4tri::hassamepoints

(

d4tri const &

w

)

const

Definition at line 331 of file d4tri.cpp.

References pi, and sumofpoints().

{
  if (sumofpoints()!=w.sumofpoints())
    return false;

  for (uint i=0; i<4; ++i)
  {
    bool res(false);
    for (uint k=0; k<4; ++k)
    {
      if (w.pi[k]==pi[i])
      {
        res=true;
        k=3;
      }
    }
    if (res==false)
      return false;
  }

  return true;
}

boolc d4tri::isavertex

(

uintc

gpt

)

const

Definition at line 157 of file d4tri.cpp.

References pi.

{
  if (gpt==pi[0]) return true;
  if (gpt==pi[1]) return true;
  if (gpt==pi[2]) return true;
  if (gpt==pi[3]) return true;

  return false;
}

boolc d4tri::isnull

(

)

const

Definition at line 303 of file d4tri.cpp.

References ni, and pi.

Referenced by writebaseobj::draw(), writewindingobj::draw(), writegridobj::draw(), and writesurfaceobj::draw().

{
  for (uint i=0; i<4; ++i)
  {
    if (pi[i]!=0)
      return false;

    if (ni[i]!=0)
      return false;
  }

  return true;
}

boolc d4tri::isonboundary

(

)

const

Definition at line 111 of file d4tri.cpp.

References ni.

{
  if (ni[0]==0) return true;
  if (ni[1]==0) return true;
  if (ni[2]==0) return true;
  if (ni[3]==0) return true;
  
  return false;
}

uint& d4tri::niFrompiInverse

(

uintc

gpt

)

[inline]

Definition at line 99 of file d4tri.h.

References ni, and piInverse().

    { return ni[ piInverse(gpt) ]; }

uintc d4tri::niInverse	(	bool &	res,
		uintc	neib
	)			const

Definition at line 138 of file d4tri.cpp.

{  
  res=true;

  if (ni[0]==neib) return 0;
  if (ni[1]==neib) return 1;
  if (ni[2]==neib) return 2;
  if (ni[3]==neib) return 3;

  res=false;
  return 4; // Return crap.
}

uintc d4tri::niInverse

(

uintc

neib

)

const [inline]

Definition at line 36 of file d4tri.h.

References ni.

Referenced by d4mingreedy2::eval(), d4minboundary::eval(), d4tess::isconnected(), d4tess::isconvex(), niReset(), d4tess::tet2to3(), d4tess::tet2to3_(), d4tess::tetmovedown(), d4tess::tetmoveleft(), and d4tess::tetmoveright().

  {  
    if (ni[0]==neib) return 0;
    if (ni[1]==neib) return 1;
    if (ni[2]==neib) return 2;
    if (ni[3]==neib) return 3;

    assert(false);
    return 4; // Return crap.
  }  

void d4tri::niReset	(	uintc	from,
		uintc	to
	)			[inline]

Definition at line 95 of file d4tri.h.

References ni, and niInverse().

    { ni[ niInverse(from) ] = to; }

uintc d4tri::piInverse	(	bool &	res,
		uintc	neib
	)			const

Definition at line 69 of file d4tri.cpp.

{
  assert(gpt!=0);

  res=true;

  if (pi[0]==gpt) return 0;
  if (pi[1]==gpt) return 1;
  if (pi[2]==gpt) return 2;
  if (pi[3]==gpt) return 3;

  res=false;
  return 4; // Return crap.
}

uintc d4tri::piInverse

(

uintc

gpt

)

const [inline]

Definition at line 22 of file d4tri.h.

References pi.

Referenced by d4minboundary::eval(), niFrompiInverse(), d4tess::tet2to3(), d4tess::tet2to3_(), d4tess::tetmovedown(), d4tess::tetmoveleft(), and d4tess::tetmoveright().

  {
    assert(gpt!=0);

    if (pi[0]==gpt) return 0;
    if (pi[1]==gpt) return 1;
    if (pi[2]==gpt) return 2;
    if (pi[3]==gpt) return 3;

    assert(false);
    return 4; // Return crap.
  }

ostream & d4tri::print

(

ostream &

os

)

const

Definition at line 171 of file d4tri.cpp.

References ni, and pi.

Referenced by operator<<().

{
  for (uint i=0; i<4; ++i)
    os << pi[i] << " ";

  os << "  ";

  for (uint i=0; i<4; ++i)
    os << ni[i] << " ";

  return os;
}

void d4tri::setnull

(

)

Definition at line 317 of file d4tri.cpp.

References ni, and pi.

{
  for (uint i=0; i<4; ++i)
  {
    pi[i]=0;
    ni[i]=0;
  }
}

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Member Data Documentation

uint d4tri::ni[4]

Definition at line 20 of file d4tri.h.

Referenced by d4tess::boundaryorient(), d4tri(), d4minboundary::eval(), isnull(), isonboundary(), d4tess::move_terminated(), niFrompiInverse(), niInverse(), niReset(), print(), setnull(), d4tess::tet2to3(), d4tess::tet2to3_(), d4tess::tetmovedown(), d4tess::tetmoveleft(), and d4tess::tetmoveright().

uint d4tri::pi[4]

Definition at line 18 of file d4tri.h.

Referenced by d4tri(), writebaseobj::draw(), writewindingobj::draw(), writesimplicesobj::draw(), writegridobj::draw(), writesurfaceobj::draw(), d4mingreedy2::eval(), d4minboundary::eval(), d4tess::getpoints(), hassamepoints(), isavertex(), d4tess::isconvex(), isnull(), d4tess::move_terminated(), piInverse(), print(), setnull(), d4tess::tet2to3(), d4tess::tet2to3_(), d4tess::tetmovedown(), d4tess::tetmoveleft(), and d4tess::tetmoveright().

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

• tetrahedron/d4tri.h
• tetrahedron/d4tri.cpp