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Public Member Functions | Static Public Member Functions
GCPnts_AbscissaPoint Class Reference

Provides an algorithm to compute a point on a curve
situated at a given distance from another point on the
curve, the distance being measured along the curve
(curvilinear abscissa on the curve).
This algorithm is also used to compute the length of a curve.
An AbscissaPoint object provides a framework for:
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#include <GCPnts_AbscissaPoint.hxx>

Public Member Functions

 GCPnts_AbscissaPoint ()
 GCPnts_AbscissaPoint (Adaptor3d_Curve &C, const Standard_Real Abscissa, const Standard_Real U0)
 the algorithm computes a point on a curve <Curve> at the
distance <Abscissa> from the point of parameter <U0>.

 GCPnts_AbscissaPoint (const Standard_Real Tol, Adaptor3d_Curve &C, const Standard_Real Abscissa, const Standard_Real U0)
 the algorithm computes a point on a curve <Curve> at
the distance <Abscissa> from the point of parameter
<U0> with the given tolerance.

 GCPnts_AbscissaPoint (const Standard_Real Tol, Adaptor2d_Curve2d &C, const Standard_Real Abscissa, const Standard_Real U0)
 the algorithm computes a point on a curve <Curve> at
the distance <Abscissa> from the point of parameter
<U0> with the given tolerance.

 GCPnts_AbscissaPoint (Adaptor2d_Curve2d &C, const Standard_Real Abscissa, const Standard_Real U0)
 the algorithm computes a point on a curve <Curve> at the
distance <Abscissa> from the point of parameter <U0>.

 GCPnts_AbscissaPoint (Adaptor3d_Curve &C, const Standard_Real Abscissa, const Standard_Real U0, const Standard_Real Ui)
 the algorithm computes a point on a curve <Curve> at the
distance <Abscissa> from the point of parameter <U0>.
<Ui> is the starting value used in the iterative process
which find the solution, it must be close to the final
solution

 GCPnts_AbscissaPoint (Adaptor2d_Curve2d &C, const Standard_Real Abscissa, const Standard_Real U0, const Standard_Real Ui)
 the algorithm computes a point on a curve <Curve> at the
distance <Abscissa> from the point of parameter <U0>.
<Ui> is the starting value used in the iterative process
which find the solution, it must be closed to the final
solution

 GCPnts_AbscissaPoint (Adaptor3d_Curve &C, const Standard_Real Abscissa, const Standard_Real U0, const Standard_Real Ui, const Standard_Real Tol)
 the algorithm computes a point on a curve <Curve> at the
distance <Abscissa> from the point of parameter <U0>.
<Ui> is the starting value used in the iterative process
which find the solution, it must be close to the final
solution

 GCPnts_AbscissaPoint (Adaptor2d_Curve2d &C, const Standard_Real Abscissa, const Standard_Real U0, const Standard_Real Ui, const Standard_Real Tol)
 the algorithm computes a point on a curve <Curve> at the
distance <Abscissa> from the point of parameter <U0>.
<Ui> is the starting value used in the iterative process
which find the solution, it must be close to the final
solution

Standard_Boolean IsDone () const
 True if the computation was successful, False otherwise.
IsDone is a protection against:

Standard_Real Parameter () const
 Returns the parameter on the curve of the point
solution of this algorithm.
Exceptions
StdFail_NotDone if the computation was not
successful, or was not done.

Static Public Member Functions

static DEFINE_STANDARD_ALLOC
Standard_Real 
Length (Adaptor3d_Curve &C)
 Computes the length of the Curve .

static Standard_Real Length (Adaptor2d_Curve2d &C)
 Computes the length of the Curve .

static Standard_Real Length (Adaptor3d_Curve &C, const Standard_Real Tol)
 Computes the length of the Curve with the given tolerance.

static Standard_Real Length (Adaptor2d_Curve2d &C, const Standard_Real Tol)
 Computes the length of the Curve with the given tolerance.

static Standard_Real Length (Adaptor3d_Curve &C, const Standard_Real U1, const Standard_Real U2)
 Computes the length of the Curve .

static Standard_Real Length (Adaptor2d_Curve2d &C, const Standard_Real U1, const Standard_Real U2)
 Computes the length of the Curve .

static Standard_Real Length (Adaptor3d_Curve &C, const Standard_Real U1, const Standard_Real U2, const Standard_Real Tol)
 Computes the length of the Curve with the given tolerance.

static Standard_Real Length (Adaptor2d_Curve2d &C, const Standard_Real U1, const Standard_Real U2, const Standard_Real Tol)
 Computes the length of the Curve with the given tolerance.
//! Constructs an empty algorithm. This function is used
only for initializing a framework to compute the length
of a curve (or a series of curves).
Warning
The function IsDone will return the value false after the use of this function.


Detailed Description


Constructor & Destructor Documentation


Member Function Documentation

  • non-convergence of the algorithm
  • querying the results before computation.

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