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Public Member Functions
GeomAPI_ExtremaSurfaceSurface Class Reference

Describes functions for computing all the extrema
between two surfaces.
An ExtremaSurfaceSurface algorithm minimizes or
maximizes the distance between a point on the first
surface and a point on the second surface. Results
are start and end points of perpendiculars common to the two surfaces.
Solutions consist of pairs of points, and an extremum
is considered to be a segment joining the two points of a solution.
An ExtremaSurfaceSurface object provides a framework for:
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#include <GeomAPI_ExtremaSurfaceSurface.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC GeomAPI_ExtremaSurfaceSurface ()
 Constructs an empty algorithm for computing
extrema between two surfaces. Use an Init function
to define the surfaces on which it is going to work.

 GeomAPI_ExtremaSurfaceSurface (const Handle< Geom_Surface > &S1, const Handle< Geom_Surface > &S2)
 Computes the extrema distances between the
surfaces <S1> and <S2>

 GeomAPI_ExtremaSurfaceSurface (const Handle< Geom_Surface > &S1, const Handle< Geom_Surface > &S2, const Quantity_Parameter U1min, const Quantity_Parameter U1max, const Quantity_Parameter V1min, const Quantity_Parameter V1max, const Quantity_Parameter U2min, const Quantity_Parameter U2max, const Quantity_Parameter V2min, const Quantity_Parameter V2max)
 Computes the extrema distances between
the portion of the surface S1 limited by the
two values of parameter (U1min,U1max) in
the u parametric direction, and by the two
values of parameter (V1min,V1max) in the v
parametric direction, and

void Init (const Handle< Geom_Surface > &S1, const Handle< Geom_Surface > &S2)
 Initializes this algorithm with the given arguments
and computes the extrema distances between the
surfaces <S1> and <S2>

void Init (const Handle< Geom_Surface > &S1, const Handle< Geom_Surface > &S2, const Quantity_Parameter U1min, const Quantity_Parameter U1max, const Quantity_Parameter V1min, const Quantity_Parameter V1max, const Quantity_Parameter U2min, const Quantity_Parameter U2max, const Quantity_Parameter V2min, const Quantity_Parameter V2max)
 Initializes this algorithm with the given arguments
and computes the extrema distances between -
the portion of the surface S1 limited by the two
values of parameter (U1min,U1max) in the u
parametric direction, and by the two values of
parameter (V1min,V1max) in the v parametric direction, and

Standard_Integer NbExtrema () const
 Returns the number of extrema computed by this algorithm.
Note: if this algorithm fails, NbExtrema returns 0.

 operator Standard_Integer () const
void Points (const Standard_Integer Index, gp_Pnt &P1, gp_Pnt &P2) const
 Returns the points P1 on the first surface and P2 on
the second surface, which are the ends of the
extremum of index Index computed by this algorithm.
Exceptions
Standard_OutOfRange if Index is not in the range [
1,NbExtrema ], where NbExtrema is the
number of extrema computed by this algorithm.

void Parameters (const Standard_Integer Index, Quantity_Parameter &U1, Quantity_Parameter &V1, Quantity_Parameter &U2, Quantity_Parameter &V2) const
 Returns the parameters (U1,V1) of the point on the
first surface, and (U2,V2) of the point on the second
surface, which are the ends of the extremum of index
Index computed by this algorithm.
Exceptions
Standard_OutOfRange if Index is not in the range [
1,NbExtrema ], where NbExtrema is the
number of extrema computed by this algorithm.

Quantity_Length Distance (const Standard_Integer Index) const
 Computes the distance between the end points of the
extremum of index Index computed by this algorithm.
Exceptions
Standard_OutOfRange if Index is not in the range [
1,NbExtrema ], where NbExtrema is the
number of extrema computed by this algorithm.

void NearestPoints (gp_Pnt &P1, gp_Pnt &P2) const
 Returns the points P1 on the first surface and P2 on
the second surface, which are the ends of the
shortest extremum computed by this algorithm.
Exceptions StdFail_NotDone if this algorithm fails.

void LowerDistanceParameters (Quantity_Parameter &U1, Quantity_Parameter &V1, Quantity_Parameter &U2, Quantity_Parameter &V2) const
 Returns the parameters (U1,V1) of the point on the
first surface and (U2,V2) of the point on the second
surface, which are the ends of the shortest extremum
computed by this algorithm.
Exceptions - StdFail_NotDone if this algorithm fails.

Quantity_Length LowerDistance () const
 Computes the distance between the end points of the
shortest extremum computed by this algorithm.
Exceptions StdFail_NotDone if this algorithm fails.

 operator Standard_Real () const
const Extrema_ExtSSExtrema () const
 return the algorithmic object from Extrema


Detailed Description


Constructor & Destructor Documentation

  • the portion of the surface S2 limited by the
    two values of parameter (U2min,U2max) in
    the u parametric direction, and by the two
    values of parameter (V2min,V2max) in the v
    parametric direction.

Member Function Documentation

  • the portion of the surface S2 limited by the two
    values of parameter (U2min,U2max) in the u
    parametric direction, and by the two values of
    parameter (V2min,V2max) in the v parametric direction.
GeomAPI_ExtremaSurfaceSurface::operator Standard_Integer ( ) const
GeomAPI_ExtremaSurfaceSurface::operator Standard_Real ( ) const

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