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Big change. removed nexte. 

Now the function is NextFE.
added find border function
This commit is contained in:
Paolo Cignoni 2008-04-11 10:13:01 +00:00
parent 0caa683764
commit 36361be798
1 changed files with 32 additions and 16 deletions
vcg/simplex/face
jumping_pos.h

48
vcg/simplex/face/jumping_pos.h
View File

@ -53,12 +53,27 @@ namespace vcg
using Pos<FACE_TYPE>::FFlip; using Pos<FACE_TYPE>::FFlip;
public: public:
// Constructors // Constructors
JumpingPos() : Pos<FACE_TYPE>() { m_AlreadyJumped = false; } JumpingPos() : Pos<FACE_TYPE>() { }
JumpingPos(FaceType * const pFace, int const z, VertexType * const pVertex) : Pos<FACE_TYPE>(pFace, z, pVertex) { m_AlreadyJumped = false; } JumpingPos(FaceType * const pFace, int const z, VertexType * const pVertex) : Pos<FACE_TYPE>(pFace, z, pVertex) { }
JumpingPos(FaceType * const pFace, int const z) : Pos<FACE_TYPE>(pFace, z) { m_AlreadyJumped = false; } JumpingPos(FaceType * const pFace, int const z) : Pos<FACE_TYPE>(pFace, z) { }
JumpingPos(FaceType * const pFace, VertexType * const pVertex) : Pos<FACE_TYPE>(pFace, pVertex) { m_AlreadyJumped = false; } JumpingPos(FaceType * const pFace, VertexType * const pVertex) : Pos<FACE_TYPE>(pFace, pVertex) { }
bool FindBorder()
{
PosType startPos=*this;
do
{
if(f==FFlip() ) {
PosType::FlipE();
return true; // we are on a border
}
PosType::FlipF();
PosType::FlipE();
} while(*this != startPos);
return false;
}
/*! /*!
* Returns the next edge skipping the border * Returns the next edge skipping the border
* _________ * _________
@ -68,25 +83,26 @@ namespace vcg
* /______\|/______\ * /______\|/______\
* v * v
* In this example, if a and d are of-border and the pos is iterating counterclockwise, this method iterate through the faces incident on vertex v, * In this example, if a and d are of-border and the pos is iterating counterclockwise, this method iterate through the faces incident on vertex v,
* producing the sequence a, b, c, d, a. * producing the sequence a, b, c, d, a, b, c, ...
*/ */
void NextE() bool NextFE()
{ {
if (face::IsBorder(*f,z) && !m_AlreadyJumped) if ( f==FFlip() ) // we are on a border
{ {
do PosType::NextE(); do {
while (f!=FFlip()); PosType::FlipF();
m_AlreadyJumped = true; PosType::FlipE();
} while (f!=FFlip());
PosType::FlipE();
return false;
} }
else else
{ {
PosType::NextE(); PosType::FlipF();
m_AlreadyJumped = false; PosType::FlipE();
return true;
} }
} }
protected:
bool m_AlreadyJumped;
}; };
/*@}*/ /*@}*/