src/HYDROData/HYDROData_BSplineOperation.h

   1
   2 #ifndef HYDROData_BSplineOperation_HeaderFile
   3 #define HYDROData_BSplineOperation_HeaderFile
   4
   5 #include <HYDROData.h>
   6
   7 #include <Geom_BSplineCurve.hxx>
   8
   9 #include <NCollection_Sequence.hxx>
  10
  11 class QPainterPath;
  12 class gp_XYZ;
  13
  14 /**\class HYDROData_BSplineOperation
  15  *
  16  * \brief Allows to work with splines: create, convert to Qt ToolPath.
  17  *
  18  * Uses GEOM module for creation of BSplines, OCCT algorithms for
  19  * manipulation and conversion.
  20  */
  21
  22 class HYDRODATA_EXPORT HYDROData_BSplineOperation
  23 {
  24 public:
  25
  26   //! Creates a spline by list of coordinates: pairs X and Y
  27   //! \param thePoints coordinates of curve
  28   //! \param theIsClosed flag indicating that the result spline should be closed
  29   //! \param theTolerance flag indicating the tolerance to skip equal points
  30   HYDROData_BSplineOperation( const NCollection_Sequence<gp_XYZ>& thePoints,
  31                               const bool theIsClosed,
  32                               const double theTolerance );
  33
  34   //! Returns the BSpline curve passing through the points
  35   //! \returns Null if Computation of BSpline was failed
  36   Handle(Geom_BSplineCurve) Curve() const { return myCurve; }
  37
  38   //! Performs conversion from BSpline curve to QPainterPath made from Bezier curves
  39   //! \returns computed PainterPath, not stored in this class, so calling of this method is not fast
  40   void ComputePath( QPainterPath& thePath ) const;
  41
  42 private:
  43   Handle(Geom_BSplineCurve) myCurve; ///< resulting BSpline, null if something is wrong
  44 };
  45
  46 #endif