Collaboration diagram for moab::BSPTreePoly::Face:

Public Member Functions
	Face (Face *next)

	Face ()

	~Face ()

double	signed_volume () const

Public Attributes
BSPTreePoly::EdgeUse *	usePtr

BSPTreePoly::Face *	nextPtr

Detailed Description

Definition at line 156 of file BSPTreePoly.cpp.

Constructor & Destructor Documentation

◆ Face() [1/2]

moab::BSPTreePoly::Face::Face ( Face * next )

inline

Definition at line 158 of file BSPTreePoly.cpp.

  : usePtr( 0 ), nextPtr( next )
 #ifdef DEBUG_IDS
  ,
  id( nextID++ )
 #endif
  {
  }

◆ Face() [2/2]

moab::BSPTreePoly::Face::Face ( )

inline

Definition at line 166 of file BSPTreePoly.cpp.

  : usePtr( 0 ), nextPtr( 0 )
 #ifdef DEBUG_IDS
  ,
  id( nextID++ )
 #endif
  {
  }

◆ ~Face()

moab::BSPTreePoly::Face::~Face ( )

Definition at line 374 of file BSPTreePoly.cpp.

 {
  BSPTreePoly::EdgeUse* nextEdgeUsePtr = usePtr;
  while( nextEdgeUsePtr )
  {
  delete nextEdgeUsePtr; // This is tricky: ~EdgeUse() might change the value of usePtr
  if( usePtr && usePtr != nextEdgeUsePtr )
  nextEdgeUsePtr = usePtr;
  else
  nextEdgeUsePtr = 0;
  }
  usePtr = 0;
 }

Member Function Documentation

◆ signed_volume()

double moab::BSPTreePoly::Face::signed_volume ( ) const

Definition at line 486 of file BSPTreePoly.cpp.

 {
  CartVect sum( 0.0 );
  const CartVect* base = usePtr->start();
  CartVect d1 = ( *usePtr->end() - *base );
  for( EdgeUse* coedge = usePtr->nextPtr; coedge != usePtr; coedge = coedge->nextPtr )
  {
  CartVect d2 = ( *coedge->end() - *base );
  sum += d1 * d2;
  d1 = d2;
  }
  return ( 1.0 / 6.0 ) * ( sum % *base );
 }