Open CASCADE Technology  6.5.4
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Public Member Functions
GeomAPI_IntCS Class Reference

This class implements methods for
computing intersection points and segments between a

#include <GeomAPI_IntCS.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC GeomAPI_IntCS ()
 Creates an empty object. Use the
function Perform for further initialization of the algorithm by
the curve and the surface.

 GeomAPI_IntCS (const Handle< Geom_Curve > &C, const Handle< Geom_Surface > &S)
 Computes the intersections between
the curve C and the surface S.
Warning
Use function IsDone to verify that the intersections are computed successfully.

void Perform (const Handle< Geom_Curve > &C, const Handle< Geom_Surface > &S)
 This function Initializes an algorithm with the curve C and the
surface S and computes the intersections between C and S.
Warning
Use function IsDone to verify that the intersections are computed successfully.

Standard_Boolean IsDone () const
 Returns true if the intersections are successfully computed.

Standard_Integer NbPoints () const
 Returns the number of Intersection Points
if IsDone returns True.
else NotDone is raised.

const gp_PntPoint (const Standard_Integer Index) const
 Returns the Intersection Point of range <Index>in case of cross intersection.
Raises NotDone if the computation has failed or if
the computation has not been done
raises OutOfRange if Index is not in the range <1..NbPoints>

void Parameters (const Standard_Integer Index, Quantity_Parameter &U, Quantity_Parameter &V, Quantity_Parameter &W) const
 Returns parameter W on the curve
and (parameters U,V) on the surface of the computed intersection point
of index Index in case of cross intersection.
Exceptions
StdFail_NotDone if intersection algorithm fails or is not initialized.
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of computed intersection points.

Standard_Integer NbSegments () const
 Returns the number of computed
intersection segments in case of tangential intersection.
Exceptions
StdFail_NotDone if the intersection algorithm fails or is not initialized.

Handle_Geom_Curve Segment (const Standard_Integer Index) const
 Returns the computed intersection
segment of index Index in case of tangential intersection.
Intersection segment is a portion of the initial curve tangent to surface.
Exceptions
StdFail_NotDone if intersection algorithm fails or is not initialized.
Standard_OutOfRange if Index is not in the range [ 1,NbSegments ],
where NbSegments is the number of computed intersection segments.

void Parameters (const Standard_Integer Index, Quantity_Parameter &U1, Quantity_Parameter &V1, Quantity_Parameter &U2, Quantity_Parameter &V2) const
 Returns the parameters of the first (U1,V1) and the last (U2,V2) points
of curve's segment on the surface in case of tangential intersection.
Index is the number of computed intersection segments.
Exceptions
StdFail_NotDone if intersection algorithm fails or is not initialized.
Standard_OutOfRange if Index is not in the range [ 1,NbSegments ],
where NbSegments is the number of computed intersection segments.


Constructor & Destructor Documentation


Member Function Documentation

Handle_Geom_Curve GeomAPI_IntCS::Segment ( const Standard_Integer  Index) const

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