#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>
-
+#include <Adaptor3d_CurveOnSurface.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Real.hxx>
-class Geom2d_BSplineCurve;
class Adaptor2d_HCurve2d;
class Adaptor3d_HCurve;
class Adaptor3d_HSurface;
-class Standard_OutOfRange;
-class Standard_ConstructionError;
class Geom_Curve;
class Geom2d_Curve;
class Geom_Surface;
-
-//! Approximation of a PCurve on a surface to make its
+//! Approximation of a PCurve on a surface to make its
//! parameter be the same that the parameter of a given 3d
//! reference curve.
class Approx_SameParameter
DEFINE_STANDARD_ALLOC
-
+ //! Warning: the C3D and C2D must have the same parametric domain.
+ Standard_EXPORT Approx_SameParameter(const Handle(Geom_Curve)& C3D,
+ const Handle(Geom2d_Curve)& C2D,
+ const Handle(Geom_Surface)& S,
+ const Standard_Real Tol);
//! Warning: the C3D and C2D must have the same parametric domain.
- Standard_EXPORT Approx_SameParameter(const Handle(Geom_Curve)& C3D, const Handle(Geom2d_Curve)& C2D, const Handle(Geom_Surface)& S, const Standard_Real Tol);
-
- Standard_EXPORT Approx_SameParameter(const Handle(Adaptor3d_HCurve)& C3D, const Handle(Geom2d_Curve)& C2D, const Handle(Adaptor3d_HSurface)& S, const Standard_Real Tol);
-
+ Standard_EXPORT Approx_SameParameter(const Handle(Adaptor3d_HCurve)& C3D,
+ const Handle(Geom2d_Curve)& C2D,
+ const Handle(Adaptor3d_HSurface)& S,
+ const Standard_Real Tol);
//! Warning: the C3D and C2D must have the same parametric domain.
- Standard_EXPORT Approx_SameParameter(const Handle(Adaptor3d_HCurve)& C3D, const Handle(Adaptor2d_HCurve2d)& C2D, const Handle(Adaptor3d_HSurface)& S, const Standard_Real Tol);
-
- Standard_Boolean IsDone() const;
-
- Standard_Real TolReached() const;
-
- //! Tells whether the original data had already the same
- //! parameter up to the tolerance : in that case nothing
+ Standard_EXPORT Approx_SameParameter(const Handle(Adaptor3d_HCurve)& C3D,
+ const Handle(Adaptor2d_HCurve2d)& C2D,
+ const Handle(Adaptor3d_HSurface)& S,
+ const Standard_Real Tol);
+
+ //!@Returns .false. if calculations failed,
+ //! .true. if calculations succeed
+ Standard_Boolean IsDone() const
+ {
+ return myDone;
+ }
+
+ //!@Returns tolerance (maximal distance) between 3d curve
+ //! and curve on surface, generated by 2d curve and surface.
+ Standard_Real TolReached() const
+ {
+ return myTolReached;
+ }
+
+ //! Tells whether the original data had already the same
+ //! parameter up to the tolerance : in that case nothing
//! is done.
- Standard_Boolean IsSameParameter() const;
-
- //! Returns the 2D curve that has the same parameter as
- //! the 3D curve once evaluated on the surface up to the
- //! specified tolerance
- Handle(Geom2d_BSplineCurve) Curve2d() const;
-
-
-
-
-protected:
-
-
-
-
+ Standard_Boolean IsSameParameter() const
+ {
+ return mySameParameter;
+ }
+
+ //! Returns the 2D curve that has the same parameter as
+ //! the 3D curve once evaluated on the surface up to the
+ //! specified tolerance.
+ Handle(Geom2d_Curve) Curve2d() const
+ {
+ return myCurve2d;
+ }
private:
-
- //! Compute the Pcurve (internal use only).
+ //! Internal data structure to unify access to the most actively used data.
+ //! This structure is not intended to be class field since
+ //! a lot of memory is used in intermediate computations.
+ struct Approx_SameParameter_Data
+ {
+ Adaptor3d_CurveOnSurface myCOnS; // Curve on surface.
+ Standard_Integer myNbPnt; // Number of points.
+ Standard_Real *myPC3d; // Parameters on 3d curve.
+ Standard_Real *myPC2d; // Parameters on 2d curve.
+
+ // Second data arrays. Used in loop over poles.
+ Standard_Real *myNewPC3d; // Parameters on 3d curve.
+ Standard_Real *myNewPC2d; // Parameters on 2d curve.
+
+ // Parameters ranges.
+ Standard_Real myC3dPF; // Curve 3d Parameter First.
+ Standard_Real myC3dPL; // Curve 3d Parameter Last.
+ Standard_Real myC2dPF; // Curve 2d Parameter First.
+ Standard_Real myC2dPL; // Curve 2d Parameter Last.
+
+ Standard_Real myTol; // Working tolerance.
+
+ // Swap data arrays and update number of points.
+ void Swap(const Standard_Integer theNewNbPoints)
+ {
+ myNbPnt = theNewNbPoints;
+ Standard_Real * temp;
+
+ // 3-D
+ temp = myPC3d;
+ myPC3d = myNewPC3d;
+ myNewPC3d = temp;
+
+ // 2-D
+ temp = myPC2d;
+ myPC2d = myNewPC2d;
+ myNewPC2d = temp;
+ }
+ };
+
+
+ Approx_SameParameter(const Approx_SameParameter &);
+ Approx_SameParameter& operator=(const Approx_SameParameter &);
+
+ //! Computes the pcurve (internal use only).
Standard_EXPORT void Build (const Standard_Real Tol);
+ //! Computes initial point distribution.
+ Standard_Boolean BuildInitialDistribution(Approx_SameParameter_Data &theData) const;
+
+ //! Increases initial number of samples in case of the C0 continuity.
+ //! Return new number of points and corresponding data arrays.
+ //@return true if new number of samples is good and false otherwise.
+ Standard_Boolean IncreaseInitialNbSamples(Approx_SameParameter_Data &theData) const;
+
+ //! Computes tangents on boundary points.
+ //@return true if tangents are not null and false otherwise.
+ Standard_Boolean ComputeTangents(const Adaptor3d_CurveOnSurface & theCOnS,
+ Standard_Real &theFirstTangent,
+ Standard_Real &theLastTangent) const;
+
+ //! Method to check same parameter state
+ //! and build dependency between 2d and 3d curves.
+ //@return true if 2d and 3d curves have same parameter state and false otherwise.
+ Standard_Boolean CheckSameParameter(Approx_SameParameter_Data &theData,
+ Standard_Real &theSqDist) const;
+
+ //! Computes interpolated values.
+ //!@Returns .false. if computations failed;
+ Standard_Boolean Interpolate(const Approx_SameParameter_Data & theData,
+ const Standard_Real aTangFirst,
+ const Standard_Real aTangLast,
+ TColStd_Array1OfReal & thePoles,
+ TColStd_Array1OfReal & theFlatKnots) const;
+
+ //! Increases number of poles in poles loop.
+ //@return true if poles is changed and false otherwise.
+ Standard_Boolean IncreaseNbPoles(const TColStd_Array1OfReal & thePoles,
+ const TColStd_Array1OfReal & theFlatKnots,
+ Approx_SameParameter_Data & theData,
+ Standard_Real &theBestSqTol) const;
+
+ static const Standard_Integer myNbSamples = 22; // To be consistent with "checkshape".
+ static const Standard_Integer myMaxArraySize = 1000;
+ const Standard_Real myDeltaMin; // Initialization is allowed only for integral types.
Standard_Boolean mySameParameter;
Standard_Boolean myDone;
Standard_Real myTolReached;
- Handle(Geom2d_BSplineCurve) myCurve2d;
+ Handle(Geom2d_Curve) myCurve2d;
Handle(Adaptor2d_HCurve2d) myHCurve2d;
Handle(Adaptor3d_HCurve) myC3d;
Handle(Adaptor3d_HSurface) mySurf;
-
-
};
-
-#include <Approx_SameParameter.lxx>
-
-
-
-
-
#endif // _Approx_SameParameter_HeaderFile
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