Open CASCADE Technology 6.6.0
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Computes the intersection of two shapes or geometries.
Geometries can be surfaces of planes.
Geometries are converted to faces
When a geometry has been converted to
topology the created shape can be found using
the methods Shape1 and Shape2 inherited from the class BooleanOperation.
The result (Shape() method) is a compound containing
edges built on intersection curves.
By default, the section is performed immediatly in
class constructors, with default values :
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#include <BRepAlgoAPI_Section.hxx>
Public Member Functions | |
BRepAlgoAPI_Section (const TopoDS_Shape &S1, const TopoDS_Shape &S2, const BOPAlgo_PaveFiller &aDSF, const Standard_Boolean PerformNow=Standard_True) | |
virtual | ~BRepAlgoAPI_Section () |
BRepAlgoAPI_Section (const TopoDS_Shape &Sh1, const TopoDS_Shape &Sh2, const Standard_Boolean PerformNow=Standard_True) | |
see upper | |
BRepAlgoAPI_Section (const TopoDS_Shape &Sh, const gp_Pln &Pl, const Standard_Boolean PerformNow=Standard_True) | |
see upper | |
BRepAlgoAPI_Section (const TopoDS_Shape &Sh, const Handle< Geom_Surface > &Sf, const Standard_Boolean PerformNow=Standard_True) | |
see upper | |
BRepAlgoAPI_Section (const Handle< Geom_Surface > &Sf, const TopoDS_Shape &Sh, const Standard_Boolean PerformNow=Standard_True) | |
see upper | |
BRepAlgoAPI_Section (const Handle< Geom_Surface > &Sf1, const Handle< Geom_Surface > &Sf2, const Standard_Boolean PerformNow=Standard_True) | |
This and the above classes construct a framework for computing the section lines of: | |
void | Init1 (const TopoDS_Shape &S1) |
initialize first part | |
void | Init1 (const gp_Pln &Pl) |
initialize first part | |
void | Init1 (const Handle< Geom_Surface > &Sf) |
initialize first part | |
void | Init2 (const TopoDS_Shape &S2) |
initialize second part | |
void | Init2 (const gp_Pln &Pl) |
initialize second part | |
void | Init2 (const Handle< Geom_Surface > &Sf) |
Reinitializes the first and the second parts on which this algorithm is going to perform the intersection computation. This is done with either: the surface Sf, the plane Pl or the shape Sh. You use the function Build to construct the result. | |
void | Approximation (const Standard_Boolean B) |
Defines an option for computation of further intersections. This computation will be performed by the function Build in this framework. By default, the underlying 3D geometry attached to each elementary edge of the result of a computed intersection is: | |
void | ComputePCurveOn1 (const Standard_Boolean B) |
Indicates if the Pcurve must be (or not) performed on first part. | |
void | ComputePCurveOn2 (const Standard_Boolean B) |
Define options for the computation of further intersections, which will be performed by the function Build in this framework. By default, no parametric 2D curve (pcurve) is defined for the elementary edges of the result. If ComputePCurve1 equals true, further computations performed in this framework with the function Build will attach an additional pcurve in the parametric space of the first shape to the constructed edges. If ComputePCurve2 equals true, the additional pcurve will be attached to the constructed edges in the parametric space of the second shape. These two functions may be used together. | |
void | Build () |
Performs the computation of section lines between two parts defined at the time of construction of this framework or reinitialized with the Init1 and Init2 functions. The constructed shape will be returned by the function Shape. This is a compound object composed of edges. These intersection edges may be built: | |
Standard_Boolean | HasAncestorFaceOn1 (const TopoDS_Shape &E, TopoDS_Shape &F) const |
get the face of the first part giving section edge <E>. Returns True on the 3 following conditions : 1/ <E> is an edge returned by the Shape() method. 2/ First part of section performed is a shape. 3/ <E> is built on a intersection curve (i.e <E> is not the result of common edges) When False, F remains untouched. | |
Standard_Boolean | HasAncestorFaceOn2 (const TopoDS_Shape &E, TopoDS_Shape &F) const |
Identifies the ancestor faces of the intersection edge E resulting from the last computation performed in this framework, that is, the faces of the two original shapes on which the edge E lies: |
BRepAlgoAPI_Section::BRepAlgoAPI_Section | ( | const TopoDS_Shape & | S1, |
const TopoDS_Shape & | S2, | ||
const BOPAlgo_PaveFiller & | aDSF, | ||
const Standard_Boolean | PerformNow = Standard_True |
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) |
virtual BRepAlgoAPI_Section::~BRepAlgoAPI_Section | ( | ) | [inline, virtual] |
BRepAlgoAPI_Section::BRepAlgoAPI_Section | ( | const TopoDS_Shape & | Sh1, |
const TopoDS_Shape & | Sh2, | ||
const Standard_Boolean | PerformNow = Standard_True |
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) |
BRepAlgoAPI_Section::BRepAlgoAPI_Section | ( | const TopoDS_Shape & | Sh, |
const gp_Pln & | Pl, | ||
const Standard_Boolean | PerformNow = Standard_True |
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) |
BRepAlgoAPI_Section::BRepAlgoAPI_Section | ( | const TopoDS_Shape & | Sh, |
const Handle< Geom_Surface > & | Sf, | ||
const Standard_Boolean | PerformNow = Standard_True |
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) |
BRepAlgoAPI_Section::BRepAlgoAPI_Section | ( | const Handle< Geom_Surface > & | Sf, |
const TopoDS_Shape & | Sh, | ||
const Standard_Boolean | PerformNow = Standard_True |
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) |
BRepAlgoAPI_Section::BRepAlgoAPI_Section | ( | const Handle< Geom_Surface > & | Sf1, |
const Handle< Geom_Surface > & | Sf2, | ||
const Standard_Boolean | PerformNow = Standard_True |
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) |
void BRepAlgoAPI_Section::Approximation | ( | const Standard_Boolean | B | ) |
void BRepAlgoAPI_Section::Build | ( | ) | [virtual] |
Reimplemented from BRepAlgoAPI_BooleanOperation.
void BRepAlgoAPI_Section::ComputePCurveOn1 | ( | const Standard_Boolean | B | ) |
void BRepAlgoAPI_Section::ComputePCurveOn2 | ( | const Standard_Boolean | B | ) |
Standard_Boolean BRepAlgoAPI_Section::HasAncestorFaceOn1 | ( | const TopoDS_Shape & | E, |
TopoDS_Shape & | F | ||
) | const |
Standard_Boolean BRepAlgoAPI_Section::HasAncestorFaceOn2 | ( | const TopoDS_Shape & | E, |
TopoDS_Shape & | F | ||
) | const |
void BRepAlgoAPI_Section::Init1 | ( | const Handle< Geom_Surface > & | Sf | ) |
void BRepAlgoAPI_Section::Init1 | ( | const gp_Pln & | Pl | ) |
void BRepAlgoAPI_Section::Init1 | ( | const TopoDS_Shape & | S1 | ) |
void BRepAlgoAPI_Section::Init2 | ( | const Handle< Geom_Surface > & | Sf | ) |
void BRepAlgoAPI_Section::Init2 | ( | const gp_Pln & | Pl | ) |
void BRepAlgoAPI_Section::Init2 | ( | const TopoDS_Shape & | S2 | ) |