Egalware/EgtGeomKernel
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EgtGeomKernel :

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- nelle TriMesh calcolo normali di vertici con peso da angoli
- in Zmap pezza per movimenti 5assi sul tip (da correggere veramente).
This commit is contained in:
Dario Sassi
2026-01-07 09:23:02 +01:00
parent 3245f7fe75
commit 3dddbdf5cd
3 changed files with 49 additions and 5 deletions
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SurfTriMesh.cpp
+36 -5
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@@ -852,6 +852,9 @@ SurfTriMesh::GetTempInt( int nTriaId, int& nTempInt) const
bool
SurfTriMesh::GetTriangleSmoothNormal( int nT, int nV, Vector3d& vtN) const
{
// flag di pesatura con angolo al vertice
bool bAngWeighted = true ;
// recupero tutti i triangoli attorno al vertice
bool bCirc ;
INTVECTOR vT ;
@@ -871,14 +874,21 @@ SurfTriMesh::GetTriangleSmoothNormal( int nT, int nV, Vector3d& vtN) const
return false ;
// medio le normali, finchè non incontro degli spigoli
vtN = m_vTria[nT].vtN ;
double dAngW = 1 ;
if ( bAngWeighted)
GetTriangleVertexAngle( nT, nV, dAngW) ;
vtN = dAngW * m_vTria[nT].vtN ;
// parto dal triangolo e vado in direzione positiva
int nLim = nPos ;
for ( int i = NextIndAroundVertex( nPos, nTria, bCirc) ;
i != nPos && i < int( vT.size()) ;
i = NextIndAroundVertex( i, nTria, bCirc)) {
if ( m_vTria[vT[nPos]].vtN * m_vTria[vT[i]].vtN >= m_dCosSmAng)
vtN += m_vTria[vT[i]].vtN ;
if ( m_vTria[nT].vtN * m_vTria[vT[i]].vtN >= m_dCosSmAng) {
int nK ; double dAngW = 1 ;
if ( bAngWeighted && FindVertexInTria( m_vTria[nT].nIdVert[nV], vT[i], nK))
GetTriangleVertexAngle( vT[i], nK, dAngW) ;
vtN += dAngW * m_vTria[vT[i]].vtN ;
}
else
break ;
nLim = i ;
@@ -887,8 +897,12 @@ SurfTriMesh::GetTriangleSmoothNormal( int nT, int nV, Vector3d& vtN) const
for ( int i = PrevIndAroundVertex( nPos, nTria, bCirc) ;
i != nLim && i >= 0 ;
i = PrevIndAroundVertex( i, nTria, bCirc)) {
if ( m_vTria[vT[nPos]].vtN * m_vTria[vT[i]].vtN >= m_dCosSmAng)
vtN += m_vTria[vT[i]].vtN ;
if ( m_vTria[nT].vtN * m_vTria[vT[i]].vtN >= m_dCosSmAng) {
int nK ; double dAngW = 1 ;
if ( bAngWeighted && FindVertexInTria( m_vTria[nT].nIdVert[nV], vT[i], nK))
GetTriangleVertexAngle( vT[i], nK, dAngW) ;
vtN += dAngW * m_vTria[vT[i]].vtN ;
}
else
break ;
}
@@ -897,6 +911,23 @@ SurfTriMesh::GetTriangleSmoothNormal( int nT, int nV, Vector3d& vtN) const
return true ;
}
//----------------------------------------------------------------------------
bool
SurfTriMesh::GetTriangleVertexAngle( int nT, int nV, double& dAng) const
{
// verifico esistenza del triangolo e validità vertice
if ( nT < 0 || nT >= GetTriangleSize() || m_vTria[nT].nIdVert[0] == SVT_DEL || nV < 0 || nV > 2)
return false ;
// determino i vettori dei due lati che partono dal vertice
Point3d ptVert = m_vVert[ m_vTria[nT].nIdVert[nV]].ptP ;
Point3d ptPrev = m_vVert[ m_vTria[nT].nIdVert[Prev( nV)]].ptP ;
Point3d ptNext = m_vVert[ m_vTria[nT].nIdVert[Next( nV)]].ptP ;
Vector3d vtPrev = ptPrev - ptVert ;
Vector3d vtNext = ptNext - ptVert ;
// determino l'angolo tra i due lati
return vtPrev.GetAngle( vtNext, dAng) ;
}
//----------------------------------------------------------------------------
SurfTriMesh*
SurfTriMesh::CloneTriangle( int nT) const