///////////////////////////////////////////////////////////////////////////////////////////
// FindStartPoint()
//
// Finds a good starting point, namely one which has only one neighbor
//
int NvStripifier::FindStartPoint(NvFaceInfoVec &faceInfos, NvEdgeInfoVec &edgeInfos)
{
int bestCtr = -1;
int bestIndex = -1;
for(size_t i = 0; i < faceInfos.size(); i++)
{
int ctr = 0;
if(FindOtherFace(edgeInfos, faceInfos[i]->m_v0, faceInfos[i]->m_v1, faceInfos[i]) == NULL)
ctr++;
if(FindOtherFace(edgeInfos, faceInfos[i]->m_v1, faceInfos[i]->m_v2, faceInfos[i]) == NULL)
ctr++;
if(FindOtherFace(edgeInfos, faceInfos[i]->m_v2, faceInfos[i]->m_v0, faceInfos[i]) == NULL)
ctr++;
if(ctr > bestCtr)
{
bestCtr = ctr;
bestIndex = i;
//return i;
}
}
//return -1;
if(bestCtr == 0)
return -1;
else
return bestIndex;
}
///////////////////////////////////////////////////////////////////////////////////////////
// FindStartPoint()
//
// Finds a good starting point, namely one which has only one neighbor
//
int NvStripifier::FindStartPoint(NvFaceInfoVec &faceInfos, NvEdgeInfoVec &edgeInfos)
{
for(int i = 0; i < faceInfos.size(); i++)
{
int ctr = 0;
if(FindOtherFace(edgeInfos, faceInfos[i]->m_v0, faceInfos[i]->m_v1, faceInfos[i]) == NULL)
ctr++;
if(FindOtherFace(edgeInfos, faceInfos[i]->m_v1, faceInfos[i]->m_v2, faceInfos[i]) == NULL)
ctr++;
if(FindOtherFace(edgeInfos, faceInfos[i]->m_v2, faceInfos[i]->m_v0, faceInfos[i]) == NULL)
ctr++;
if(ctr > 1)
return i;
}
return -1;
}
///////////////////////////////////////////////////////////////////////////////////////////
// NumNeighbors()
//
// Returns the number of neighbors that this face has
//
int NvStripifier::NumNeighbors(NvFaceInfo* face, NvEdgeInfoVec& edgeInfoVec)
{
int numNeighbors = 0;
if(FindOtherFace(edgeInfoVec, face->m_v0, face->m_v1, face) != NULL)
{
numNeighbors++;
}
if(FindOtherFace(edgeInfoVec, face->m_v1, face->m_v2, face) != NULL)
{
numNeighbors++;
}
if(FindOtherFace(edgeInfoVec, face->m_v2, face->m_v0, face) != NULL)
{
numNeighbors++;
}
return numNeighbors;
}
