#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>
-#include <Standard_Boolean.hxx>
-#include <Standard_Integer.hxx>
+#include <IntPolyh_ArrayOfPointNormal.hxx>
#include <IntPolyh_ArrayOfSectionLines.hxx>
#include <IntPolyh_ArrayOfTangentZones.hxx>
+#include <IntPolyh_ListOfCouples.hxx>
+#include <IntPolyh_PMaillageAffinage.hxx>
#include <TColStd_Array1OfReal.hxx>
+#include <Standard_Boolean.hxx>
#include <Standard_Real.hxx>
-#include <IntPolyh_PMaillageAffinage.hxx>
-#include <IntPolyh_ArrayOfCouples.hxx>
class Adaptor3d_HSurface;
-
-//! the main algorithm. Algorithm outputs are
-//! lines and points like describe in the last
-//! paragraph. The Algorithm provides direct access to
-//! the elements of those lines and points. Other
-//! classes of this package are for internal use and
-//! only concern the algorithmic part.
-class IntPolyh_Intersection
+//! API algorithm for intersection of two surfaces by intersection
+//! of their triangulations.
+//!
+//! Algorithm provides possibility to intersect surfaces as without
+//! the precomputed sampling as with it.
+//!
+//! If the numbers of sampling points are not given, it will build the
+//! net of 10x10 sampling points for each surface.
+//!
+//! The intersection is done inside constructors.
+//! Before obtaining the results of intersection it is necessary to check
+//! if intersection has been performed correctly. It can be done by calling
+//! the *IsDone()* method.
+//!
+//! The results of intersection are the intersection lines and points.
+class IntPolyh_Intersection
{
public:
DEFINE_STANDARD_ALLOC
-
- //! Constructor
- Standard_EXPORT IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_HSurface)& S2);
-
- //! NbSU1 ... NbSV2 are used to compute the initial
- //! samples of the iso parametric meshes on the
- //! surfaces.
- Standard_EXPORT IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& S1, const Standard_Integer NbSU1, const Standard_Integer NbSV1, const Handle(Adaptor3d_HSurface)& S2, const Standard_Integer NbSU2, const Standard_Integer NbSV2);
-
- //! D1, D2 are used to compute the initial
- //! samples of the iso parametric meshes on the
- //! surfaces.
- Standard_EXPORT IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& S1, const TColStd_Array1OfReal& anUpars1, const TColStd_Array1OfReal& aVpars1, const Handle(Adaptor3d_HSurface)& S2, const TColStd_Array1OfReal& anUpars2, const TColStd_Array1OfReal& aVpars2);
-
- //! Compute the intersection.
+public: //! @name Constructors
+
+ //! Constructor for intersection of two surfaces with default parameters.
+ //! Performs intersection.
+ Standard_EXPORT IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& theS1,
+ const Handle(Adaptor3d_HSurface)& theS2);
+
+ //! Constructor for intersection of two surfaces with the given
+ //! size of the sampling nets:
+ //! - <theNbSU1> x <theNbSV1> - for the first surface <theS1>;
+ //! - <theNbSU2> x <theNbSV2> - for the second surface <theS2>.
+ //! Performs intersection.
+ Standard_EXPORT IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& theS1,
+ const Standard_Integer theNbSU1,
+ const Standard_Integer theNbSV1,
+ const Handle(Adaptor3d_HSurface)& theS2,
+ const Standard_Integer theNbSU2,
+ const Standard_Integer theNbSV2);
+
+ //! Constructor for intersection of two surfaces with the precomputed sampling.
+ //! Performs intersection.
+ Standard_EXPORT IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& theS1,
+ const TColStd_Array1OfReal& theUPars1,
+ const TColStd_Array1OfReal& theVPars1,
+ const Handle(Adaptor3d_HSurface)& theS2,
+ const TColStd_Array1OfReal& theUPars2,
+ const TColStd_Array1OfReal& theVPars2);
+
+
+public: //! @name Getting the results
+
+ //! Returns state of the operation
+ Standard_Boolean IsDone() const
+ {
+ return myIsDone;
+ }
+
+ //! Returns the number of section lines
+ Standard_Integer NbSectionLines() const
+ {
+ return mySectionLines.NbItems();
+ }
+
+ //! Returns the number of points in the given line
+ Standard_Integer NbPointsInLine(const Standard_Integer IndexLine) const
+ {
+ return mySectionLines[IndexLine-1].NbStartPoints();
+ }
+
+ // Returns number of tangent zones
+ Standard_Integer NbTangentZones() const
+ {
+ return myTangentZones.NbItems();
+ }
+
+ //! Returns number of points in tangent zone
+ Standard_Integer NbPointsInTangentZone(const Standard_Integer) const
+ {
+ return 1;
+ }
+
+ //! Gets the parameters of the point in section line
+ Standard_EXPORT void GetLinePoint(const Standard_Integer IndexLine,
+ const Standard_Integer IndexPoint,
+ Standard_Real& x, Standard_Real& y, Standard_Real& z,
+ Standard_Real& u1, Standard_Real& v1,
+ Standard_Real& u2, Standard_Real& v2,
+ Standard_Real& incidence) const;
+
+ //! Gets the parameters of the point in tangent zone
+ Standard_EXPORT void GetTangentZonePoint(const Standard_Integer IndexLine,
+ const Standard_Integer IndexPoint,
+ Standard_Real& x, Standard_Real& y, Standard_Real& z,
+ Standard_Real& u1, Standard_Real& v1,
+ Standard_Real& u2, Standard_Real& v2) const;
+
+
+private: //! @name Performing the intersection
+
+ //! Compute the intersection by first making the sampling of the surfaces.
Standard_EXPORT void Perform();
-
- //! Compute the intersection.
- Standard_EXPORT void Perform (const TColStd_Array1OfReal& Upars1, const TColStd_Array1OfReal& Vpars1, const TColStd_Array1OfReal& Upars2, const TColStd_Array1OfReal& Vpars2);
-
- Standard_EXPORT Standard_Boolean IsDone() const;
-
- Standard_EXPORT Standard_Integer NbSectionLines() const;
-
- Standard_EXPORT Standard_Integer NbPointsInLine (const Standard_Integer IndexLine) const;
-
- Standard_EXPORT void GetLinePoint (const Standard_Integer IndexLine, const Standard_Integer IndexPoint, Standard_Real& x, Standard_Real& y, Standard_Real& z, Standard_Real& u1, Standard_Real& v1, Standard_Real& u2, Standard_Real& v2, Standard_Real& incidence) const;
-
- Standard_EXPORT Standard_Integer NbTangentZones() const;
-
- Standard_EXPORT Standard_Integer NbPointsInTangentZone (const Standard_Integer IndexLine) const;
-
- Standard_EXPORT void GetTangentZonePoint (const Standard_Integer IndexLine, const Standard_Integer IndexPoint, Standard_Real& x, Standard_Real& y, Standard_Real& z, Standard_Real& u1, Standard_Real& v1, Standard_Real& u2, Standard_Real& v2) const;
-
-
-
-
-protected:
-
-
-
-
-
-private:
-
-
- //! Computes MaillageAffinage
- Standard_EXPORT Standard_Boolean PerformMaillage (const Standard_Boolean isFirstFwd, const Standard_Boolean isSecondFwd, IntPolyh_PMaillageAffinage& MaillageS);
-
- //! The method PerformMaillage(..) is used to compute MaillageAffinage. It is
- //! called four times (two times for each surface) for creation of inscribed
- //! and circumscribed mesh for each surface.
- Standard_EXPORT Standard_Boolean PerformMaillage (IntPolyh_PMaillageAffinage& MaillageS);
-
- //! Computes MaillageAffinage
- Standard_EXPORT Standard_Boolean PerformMaillage (const Standard_Boolean isFirstFwd, const Standard_Boolean isSecondFwd, const TColStd_Array1OfReal& Upars1, const TColStd_Array1OfReal& Vpars1, const TColStd_Array1OfReal& Upars2, const TColStd_Array1OfReal& Vpars2, IntPolyh_PMaillageAffinage& MaillageS);
-
- //! The method PerformMaillage(..) is used to compute MaillageAffinage. It is
- //! called four times (two times for each surface) for creation of inscribed
- //! and circumscribed mesh for each surface.
- Standard_EXPORT Standard_Boolean PerformMaillage (const TColStd_Array1OfReal& Upars1, const TColStd_Array1OfReal& Vpars1, const TColStd_Array1OfReal& Upars2, const TColStd_Array1OfReal& Vpars2, IntPolyh_PMaillageAffinage& MaillageS);
-
- //! This method analyzes arrays to find same couples. If some
- //! are detected it leaves the couple in only one array
- //! deleting from others.
- Standard_EXPORT void MergeCouples (IntPolyh_ArrayOfCouples& anArrayFF, IntPolyh_ArrayOfCouples& anArrayFR, IntPolyh_ArrayOfCouples& anArrayRF, IntPolyh_ArrayOfCouples& anArrayRR) const;
-
- //! Process default interference
- Standard_EXPORT Standard_Boolean PerformStd (IntPolyh_PMaillageAffinage& MaillageS, Standard_Integer& NbCouples);
-
- //! Process advanced interference
- Standard_EXPORT Standard_Boolean PerformAdv (IntPolyh_PMaillageAffinage& MaillageFF, IntPolyh_PMaillageAffinage& MaillageFR, IntPolyh_PMaillageAffinage& MaillageRF, IntPolyh_PMaillageAffinage& MaillageRR, Standard_Integer& NbCouples);
-
- //! Process default interference
- Standard_EXPORT Standard_Boolean PerformStd (const TColStd_Array1OfReal& Upars1, const TColStd_Array1OfReal& Vpars1, const TColStd_Array1OfReal& Upars2, const TColStd_Array1OfReal& Vpars2, IntPolyh_PMaillageAffinage& MaillageS, Standard_Integer& NbCouples);
-
- //! Process advanced interference
- Standard_EXPORT Standard_Boolean PerformAdv (const TColStd_Array1OfReal& Upars1, const TColStd_Array1OfReal& Vpars1, const TColStd_Array1OfReal& Upars2, const TColStd_Array1OfReal& Vpars2, IntPolyh_PMaillageAffinage& MaillageFF, IntPolyh_PMaillageAffinage& MaillageFR, IntPolyh_PMaillageAffinage& MaillageRF, IntPolyh_PMaillageAffinage& MaillageRR, Standard_Integer& NbCouples);
-
-
- Standard_Boolean done;
- Standard_Integer nbsectionlines;
- Standard_Integer nbtangentzones;
- IntPolyh_ArrayOfSectionLines TSectionLines;
- IntPolyh_ArrayOfTangentZones TTangentZones;
- Standard_Integer myNbSU1;
- Standard_Integer myNbSV1;
- Standard_Integer myNbSU2;
- Standard_Integer myNbSV2;
- Handle(Adaptor3d_HSurface) mySurf1;
- Handle(Adaptor3d_HSurface) mySurf2;
-
+ //! Compute the intersection on the precomputed sampling.
+ Standard_EXPORT void Perform(const TColStd_Array1OfReal& theUPars1,
+ const TColStd_Array1OfReal& theVPars1,
+ const TColStd_Array1OfReal& theUPars2,
+ const TColStd_Array1OfReal& theVPars2);
+
+ //! Performs the default (standard) intersection of the triangles
+ Standard_EXPORT Standard_Boolean PerformStd(const TColStd_Array1OfReal& theUPars1,
+ const TColStd_Array1OfReal& theVPars1,
+ const TColStd_Array1OfReal& theUPars2,
+ const TColStd_Array1OfReal& theVPars2,
+ const Standard_Real theDeflTol1,
+ const Standard_Real theDeflTol2,
+ IntPolyh_PMaillageAffinage& theMaillageS,
+ Standard_Integer& theNbCouples);
+
+ //! Performs the advanced intersection of the triangles - four intersection with
+ //! different shifts of the sampling points.
+ Standard_EXPORT Standard_Boolean PerformAdv(const TColStd_Array1OfReal& theUPars1,
+ const TColStd_Array1OfReal& theVPars1,
+ const TColStd_Array1OfReal& theUPars2,
+ const TColStd_Array1OfReal& theVPars2,
+ const Standard_Real theDeflTol1,
+ const Standard_Real theDeflTol2,
+ IntPolyh_PMaillageAffinage& theMaillageFF,
+ IntPolyh_PMaillageAffinage& theMaillageFR,
+ IntPolyh_PMaillageAffinage& theMaillageRF,
+ IntPolyh_PMaillageAffinage& theMaillageRR,
+ Standard_Integer& theNbCouples);
+
+ //! Performs the advanced intersection of the triangles.
+ Standard_EXPORT Standard_Boolean PerformMaillage(const TColStd_Array1OfReal& theUPars1,
+ const TColStd_Array1OfReal& theVPars1,
+ const TColStd_Array1OfReal& theUPars2,
+ const TColStd_Array1OfReal& theVPars2,
+ const Standard_Real theDeflTol1,
+ const Standard_Real theDeflTol2,
+ IntPolyh_PMaillageAffinage& theMaillage);
+
+ //! Performs the advanced intersection of the triangles.
+ Standard_EXPORT Standard_Boolean PerformMaillage(const TColStd_Array1OfReal& theUPars1,
+ const TColStd_Array1OfReal& theVPars1,
+ const TColStd_Array1OfReal& theUPars2,
+ const TColStd_Array1OfReal& theVPars2,
+ const Standard_Real theDeflTol1,
+ const Standard_Real theDeflTol2,
+ const IntPolyh_ArrayOfPointNormal& thePoints1,
+ const IntPolyh_ArrayOfPointNormal& thePoints2,
+ const Standard_Boolean theIsFirstFwd,
+ const Standard_Boolean theIsSecondFwd,
+ IntPolyh_PMaillageAffinage& theMaillage);
+
+ //! Clears the arrays from the duplicate couples, keeping only one instance of it.
+ Standard_EXPORT void MergeCouples(IntPolyh_ListOfCouples& theArrayFF,
+ IntPolyh_ListOfCouples& theArrayFR,
+ IntPolyh_ListOfCouples& theArrayRF,
+ IntPolyh_ListOfCouples& theArrayRR) const;
+
+
+private: //! @name Fields
+
+ // Inputs
+ Handle(Adaptor3d_HSurface) mySurf1; //!< First surface
+ Handle(Adaptor3d_HSurface) mySurf2; //!< Second surface
+ Standard_Integer myNbSU1; //!< Number of samples in U direction for first surface
+ Standard_Integer myNbSV1; //!< Number of samples in V direction for first surface
+ Standard_Integer myNbSU2; //!< Number of samples in U direction for second surface
+ Standard_Integer myNbSV2; //!< Number of samples in V direction for second surface
+ // Results
+ Standard_Boolean myIsDone; //!< State of the operation
+ IntPolyh_ArrayOfSectionLines mySectionLines; //!< Section lines
+ IntPolyh_ArrayOfTangentZones myTangentZones; //!< Tangent zones
};
-
-
-
-
-
-
#endif // _IntPolyh_Intersection_HeaderFile
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