Collaboration diagram for moab::BSPTreePoly::VertexUse:

Public Member Functions
	VertexUse (Edge edge, Vertex vtx)

	~VertexUse ()

void	set_vertex (BSPTreePoly::Vertex *&vtx_ptr)

Public Attributes
BSPTreePoly::VertexUse *	nextPtr

BSPTreePoly::VertexUse *	prevPtr

BSPTreePoly::Vertex *	vtxPtr

BSPTreePoly::Edge *	edgePtr

Detailed Description

Definition at line 34 of file BSPTreePoly.cpp.

Constructor & Destructor Documentation

◆ VertexUse()

moab::BSPTreePoly::VertexUse::VertexUse	(	BSPTreePoly::Edge *	edge,
		BSPTreePoly::Vertex *	vtx
	)

Definition at line 203 of file BSPTreePoly.cpp.

  : vtxPtr( vtx ), edgePtr( edge )
 {
  if( !vtx->usePtr )
  {
  vtx->usePtr = prevPtr = nextPtr = this;
  return;
  }
  
  nextPtr = vtx->usePtr;
  prevPtr = nextPtr->prevPtr;
  assert( prevPtr->nextPtr == nextPtr );
  nextPtr->prevPtr = this;
  prevPtr->nextPtr = this;
 }

References nextPtr, prevPtr, and moab::BSPTreePoly::Vertex::usePtr.

◆ ~VertexUse()

moab::BSPTreePoly::VertexUse::~VertexUse ( )

Definition at line 218 of file BSPTreePoly.cpp.

 {
  if( nextPtr == this )
  {
  assert( prevPtr == this );
  assert( vtxPtr->usePtr == this );
  vtxPtr->usePtr = 0;
  delete vtxPtr;
  }
  else if( vtxPtr->usePtr == this )
  vtxPtr->usePtr = nextPtr;
  
  nextPtr->prevPtr = prevPtr;
  prevPtr->nextPtr = nextPtr;
  nextPtr = prevPtr = 0;
 }

Member Function Documentation

◆ set_vertex()

void moab::BSPTreePoly::VertexUse::set_vertex ( BSPTreePoly::Vertex *& vtx_ptr )

Definition at line 235 of file BSPTreePoly.cpp.

 {
  if( vtxPtr )
  {
  if( nextPtr == prevPtr )
  {
  assert( nextPtr == this );
  vtxPtr->usePtr = 0;
  delete vtx;
  vtx = 0;
  }
  else
  {
  nextPtr->prevPtr = prevPtr;
  prevPtr->nextPtr = nextPtr;
  if( vtxPtr->usePtr == this ) vtxPtr->usePtr = nextPtr;
  }
  }
  
  if( vtx )
  {
  vtxPtr = vtx;
  nextPtr = vtxPtr->usePtr->nextPtr;
  prevPtr = vtxPtr->usePtr;
  nextPtr->prevPtr = this;
  vtxPtr->usePtr->nextPtr = this;
  }
 }