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EgtGeomKernel 1.8j4 :

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- aggiunta classe Polygon3d (da EgtExchange)
- razionalizzata classe Plane3d
- corretta funzione IntersLineTria.
This commit is contained in:
Dario Sassi
2017-10-16 07:56:04 +00:00
parent 31658bb165
commit 5bcd4bb67d
26 changed files with 969 additions and 105 deletions
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IntersLinePlane.cpp
+8 -5
View File
@@ -17,7 +17,7 @@
//----------------------------------------------------------------------------
int
IntersLinePlane( const Point3d& ptL1, const Point3d& ptL2, const Plane3d& plPlane, Point3d& ptInt)
IntersLinePlane( const Point3d& ptL1, const Point3d& ptL2, const Plane3d& plPlane, Point3d& ptInt, bool bFinite)
{
Vector3d vtL = ptL2 - ptL1 ;
double dLen = vtL.Len() ;
@@ -25,20 +25,20 @@ IntersLinePlane( const Point3d& ptL1, const Point3d& ptL2, const Plane3d& plPlan
vtL /= dLen ;
else
vtL = V_NULL ;
return IntersLinePlane( ptL1, vtL, dLen, plPlane, ptInt) ;
return IntersLinePlane( ptL1, vtL, dLen, plPlane, ptInt, bFinite) ;
}
//----------------------------------------------------------------------------
int
IntersLinePlane( const Point3d& ptL, const Vector3d& vtL, double dLen, const Plane3d& plPlane, Point3d& ptInt)
IntersLinePlane( const Point3d& ptL, const Vector3d& vtL, double dLen, const Plane3d& plPlane, Point3d& ptInt, bool bFinite)
{
Vector3d vtDir = vtL ;
if ( dLen > EPS_SMALL && ! vtDir.Normalize( EPS_ZERO))
return ILPT_NO ;
// coseno dell'angolo tra direzione linea e normale al piano
double dCosAng = vtDir * plPlane.vtN ;
double dCosAng = vtDir * plPlane.GetVersN() ;
// posizione del punto rispetto al piano
double dPosL = ( ptL - ORIG) * plPlane.vtN - plPlane.dDist ;
double dPosL = ( ptL - ORIG) * plPlane.GetVersN() - plPlane.GetDist() ;
// verifico se linea parallela al piano (ovvero ortogonale alla normale)
if ( fabs( dCosAng) < COS_ORTO_ANG_ZERO) {
// se il punto giace nel piano, vi giace anche la linea
@@ -51,6 +51,9 @@ IntersLinePlane( const Point3d& ptL, const Vector3d& vtL, double dLen, const Pla
// determino il punto di intersezione
double dDistI = - dPosL / dCosAng ;
ptInt = ptL + vtDir * dDistI ;
// se linea infinita, ho trovato l'intersezione
if ( ! bFinite)
return ILPT_YES ;
// intersezione sul primo estremo
if ( fabs( dDistI) < EPS_SMALL)
return ILPT_START ;