ApproxInt_KnotTools Class Reference

This class intended to build knots sequence on discrete set of points for further approximation into bspline curve. More...

#include <ApproxInt_KnotTools.hxx>

Static Public Member Functions
static void	BuildKnots (const TColgp_Array1OfPnt &thePntsXYZ, const TColgp_Array1OfPnt2d &thePntsU1V1, const TColgp_Array1OfPnt2d &thePntsU2V2, const math_Vector &thePars, const Standard_Boolean theApproxXYZ, const Standard_Boolean theApproxU1V1, const Standard_Boolean theApproxU2V2, const Standard_Integer theMinNbPnts, NCollection_Vector< Standard_Integer > &theKnots)
	Main function to build optimal knot sequence. At least one set from (thePntsXYZ, thePntsU1V1, thePntsU2V2) should exist. More...

Detailed Description

This class intended to build knots sequence on discrete set of points for further approximation into bspline curve.

Short description of algorithm: 1) Build discrete curvature on points set. 2) According to special rules build draft knots sequence. 3) Filter draft sequence to build output sequence.

For more details look at: Anshuman Razdan - Knot Placement for B-Spline curve Approximation.

Member Function Documentation

static void ApproxInt_KnotTools::BuildKnots ( const TColgp_Array1OfPnt &  thePntsXYZ, const TColgp_Array1OfPnt2d &  thePntsU1V1, const TColgp_Array1OfPnt2d &  thePntsU2V2, const math_Vector &  thePars, const Standard_Boolean  theApproxXYZ, const Standard_Boolean  theApproxU1V1, const Standard_Boolean  theApproxU2V2, const Standard_Integer  theMinNbPnts, NCollection_Vector< Standard_Integer > &  theKnots  )

static

Main function to build optimal knot sequence. At least one set from (thePntsXYZ, thePntsU1V1, thePntsU2V2) should exist.

Parameters

thePntsXYZ	- Set of 3d points.
thePntsU1V1	- Set of 2d points.
thePntsU2V2	- Set of 2d points.
thePars	- Expected parameters assoiated with set.
theApproxXYZ	- Flag, existence of 3d set.
theApproxU1V1	- Flag existence of first 2d set.
theApproxU2V2	- Flag existence of second 2d set.
theMinNbPnts	- Minimal number of points per knot interval.
theKnots	- output knots sequence.

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The documentation for this class was generated from the following file:

• ApproxInt_KnotTools.hxx