maxderivinvok(0)
{
- Standard_Integer MinDegree,
- MaxDegree ;
// check
vmults = new TColStd_HArray1OfInteger (1,VMults.Length());
vmults->ChangeArray1() = VMults;
- MinDegree = Min(udeg,vdeg) ;
- MaxDegree = Max(udeg,vdeg) ;
- cachepoles = new TColgp_HArray2OfPnt(1,MaxDegree + 1,
- 1,MinDegree + 1) ;
-
- cacheweights.Nullify() ;
- ucacheparameter = 0.0e0 ;
- vcacheparameter = 0.0e0 ;
- ucachespanlenght = 1.0e0 ;
- vcachespanlenght = 1.0e0 ;
- ucachespanindex = 0 ;
- vcachespanindex = 0 ;
- validcache = 0 ;
UpdateUKnots();
UpdateVKnots();
vdeg(VDegree),
maxderivinvok(0)
{
- Standard_Integer MinDegree,
- MaxDegree ;
// check weights
if (Weights.ColLength() != Poles.ColLength())
vmults = new TColStd_HArray1OfInteger (1,VMults.Length());
vmults->ChangeArray1() = VMults;
- MinDegree = Min(udeg,vdeg) ;
- MaxDegree = Max(udeg,vdeg) ;
- cachepoles = new TColgp_HArray2OfPnt(1,MaxDegree + 1,
- 1,MinDegree + 1) ;
- if (urational || vrational) {
- cacheweights = new TColStd_HArray2OfReal (1,MaxDegree + 1,
- 1,MinDegree + 1);
- }
- ucacheparameter = 0.0e0 ;
- vcacheparameter = 0.0e0 ;
- ucachespanlenght = 1.0e0 ;
- vcachespanlenght = 1.0e0 ;
- ucachespanindex = 0 ;
- vcachespanindex = 0 ;
- validcache = 0 ;
UpdateUKnots();
UpdateVKnots();
default : Usmooth = GeomAbs_C3; break;
}
}
-
- InvalidateCache() ;
}
//=======================================================================
default : Vsmooth = GeomAbs_C3; break;
}
}
- InvalidateCache() ;
}
-//=======================================================================
-//function : InvalidateCache
-//purpose : Invalidates the Cache of the surface
-//=======================================================================
-
-void Geom_BSplineSurface::InvalidateCache()
-{
- validcache = 0 ;
-}
//=======================================================================
//function : Normalizes the parameters if the curve is periodic
}
}
-//=======================================================================
-//function : ValidateCache
-//purpose : function that validates the cache of the surface
-//=======================================================================
-
-void Geom_BSplineSurface::ValidateCache(const Standard_Real Uparameter,
- const Standard_Real Vparameter)
-{
- Standard_Real NewParameter ;
- Standard_Integer LocalIndex = 0 ;
- Standard_Integer MinDegree,
- MaxDegree ;
- //
- // check if the degree did not change
- //
-
- MinDegree = Min(udeg,vdeg) ;
- MaxDegree = Max(udeg,vdeg) ;
- if (cachepoles->ColLength() < MaxDegree + 1 ||
- cachepoles->RowLength() < MinDegree + 1) {
- cachepoles = new TColgp_HArray2OfPnt(1,MaxDegree + 1,
- 1,MinDegree + 1);
- }
- //
- // Verif + poussee pour les poids
- //
- if (urational || vrational) {
- if (cacheweights.IsNull()) {
- cacheweights = new TColStd_HArray2OfReal(1,MaxDegree + 1,
- 1,MinDegree + 1);
- }
- else {
- if (cacheweights->ColLength() < MaxDegree + 1 ||
- cacheweights->RowLength() < MinDegree + 1) {
- cacheweights = new TColStd_HArray2OfReal(1,MaxDegree + 1,
- 1,MinDegree + 1);
- }
- }
- }
- else if (!cacheweights.IsNull())
- cacheweights.Nullify();
-
- BSplCLib::LocateParameter(udeg,
- (ufknots->Array1()),
- (BSplCLib::NoMults()),
- Uparameter,
- uperiodic,
- LocalIndex,
- NewParameter);
- ucachespanindex = LocalIndex ;
- if (Uparameter == ufknots->Value(LocalIndex + 1)) {
-
- LocalIndex += 1 ;
- ucacheparameter = ufknots->Value(LocalIndex) ;
- if (LocalIndex == ufknots->Upper() - udeg) {
- //
- // for the last span if the parameter is outside of
- // the domain of the curve than use the last knot
- // and normalize with the last span Still set the
- // cachespanindex to flatknots->Upper() - deg so that
- // the IsCacheValid will know for sure we are extending
- // the Bspline
- //
-
- ucachespanlenght = ufknots->Value(LocalIndex - 1) - ucacheparameter ;
- }
- else {
- ucachespanlenght = ufknots->Value(LocalIndex + 1) - ucacheparameter ;
- }
- }
- else {
- ucacheparameter = ufknots->Value(LocalIndex) ;
- ucachespanlenght = ufknots->Value(LocalIndex + 1) - ucacheparameter ;
- }
-
- LocalIndex = 0 ;
- BSplCLib::LocateParameter(vdeg,
- (vfknots->Array1()),
- (BSplCLib::NoMults()),
- Vparameter,
- vperiodic,
- LocalIndex,
- NewParameter);
- vcachespanindex = LocalIndex ;
- if (Vparameter == vfknots->Value(LocalIndex + 1)) {
- LocalIndex += 1 ;
- vcacheparameter = vfknots->Value(LocalIndex) ;
- if (LocalIndex == vfknots->Upper() - vdeg) {
- //
- // for the last span if the parameter is outside of
- // the domain of the curve than use the last knot
- // and normalize with the last span Still set the
- // cachespanindex to flatknots->Upper() - deg so that
- // the IsCacheValid will know for sure we are extending
- // the Bspline
- //
-
- vcachespanlenght = vfknots->Value(LocalIndex - 1) - vcacheparameter ;
- }
- else {
- vcachespanlenght = vfknots->Value(LocalIndex + 1) - vcacheparameter ;
- }
- }
- else {
- vcacheparameter = vfknots->Value(LocalIndex) ;
- vcachespanlenght = vfknots->Value(LocalIndex + 1) - vcacheparameter ;
- }
-
- Standard_Real uparameter_11 = (2*ucacheparameter + ucachespanlenght)/2,
- uspanlenght_11 = ucachespanlenght/2,
- vparameter_11 = (2*vcacheparameter + vcachespanlenght)/2,
- vspanlenght_11 = vcachespanlenght/2 ;
- if (urational || vrational) {
- BSplSLib::BuildCache(uparameter_11,
- vparameter_11,
- uspanlenght_11,
- vspanlenght_11,
- uperiodic,
- vperiodic,
- udeg,
- vdeg,
- ucachespanindex,
- vcachespanindex,
- (ufknots->Array1()),
- (vfknots->Array1()),
- poles->Array2(),
- weights->Array2(),
- cachepoles->ChangeArray2(),
- cacheweights->ChangeArray2()) ;
- }
- else {
- BSplSLib::BuildCache(uparameter_11,
- vparameter_11,
- uspanlenght_11,
- vspanlenght_11,
- uperiodic,
- vperiodic,
- udeg,
- vdeg,
- ucachespanindex,
- vcachespanindex,
- (ufknots->Array1()),
- (vfknots->Array1()),
- poles->Array2(),
- *((TColStd_Array2OfReal*) NULL),
- cachepoles->ChangeArray2(),
- *((TColStd_Array2OfReal*) NULL)) ;
- }
- validcache = 1 ;
-}
-
-//=======================================================================
-//function : IsCacheValid
-//purpose : function that checks for the validity of the cache of the
-// surface
-//=======================================================================
-Standard_Boolean Geom_BSplineSurface::IsCacheValid
-(const Standard_Real U,
- const Standard_Real V) const
-{
- //Roman Lygin 26.12.08, see comments in Geom_BSplineCurve::IsCacheValid()
- Standard_Real aDeltaU = U - ucacheparameter;
- Standard_Real aDeltaV = V - vcacheparameter;
-
- return ( validcache &&
- (aDeltaU >= 0.0e0) &&
- ((aDeltaU < ucachespanlenght) || (ucachespanindex == ufknots->Upper() - udeg)) &&
- (aDeltaV >= 0.0e0) &&
- ((aDeltaV < vcachespanlenght) || (vcachespanindex == vfknots->Upper() - vdeg)) );
-}
-
//=======================================================================
//function : SetWeight
//purpose :
}
Weights (UIndex+Weights.LowerRow()-1, VIndex+Weights.LowerCol()-1) = Weight;
Rational(Weights, urational, vrational);
- InvalidateCache();
}
//=======================================================================
}
// Verifie si c'est rationnel
Rational(Weights, urational, vrational);
-
- InvalidateCache();
}
//=======================================================================
}
// Verifie si c'est rationnel
Rational(Weights, urational, vrational);
- InvalidateCache();
}
projects / occt.git / blobdiff