Open CASCADE Technology
6.5.4
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Template class for the intersection algorithm required
by the 3D classifications.
(a intersection point near the origin of the line, ie.
at a distance less or equal than <tolerance>, will be
returned even if it has a negative parameter.)
#include <TopClass_Intersection3d.hxx>
Public Member Functions | |
virtual DEFINE_STANDARD_ALLOC void | Perform (const gp_Lin &L, const Standard_Real Prm, const Standard_Real Tol, const TopoDS_Face &Face)=0 |
Perform the intersection between the segment L(0) ... L(Prm) and the Face <Face>. Only the point with the smallest parameter on the line is returned. The Tolerance <Tol> is used to determine if the first point of the segment is near the face. In that case, the parameter of the intersection point on the line can be a negative value (greater than -Tol). | |
virtual Standard_Boolean | IsDone () const =0 |
True is returned when the intersection have been computed. | |
virtual Standard_Boolean | HasAPoint () const =0 |
True is returned if a point has been found. | |
virtual const IntCurveSurface_IntersectionPoint & | Point () const =0 |
Returns the Intersection Point. | |
virtual TopAbs_State | State () const =0 |
Returns the state of the point on the face. The values can be either TopAbs_IN ( the point is in the face) or TopAbs_ON ( the point is on a boudary of the face). | |
Protected Member Functions | |
TopClass_Intersection3d () | |
Empty constructor. |
TopClass_Intersection3d::TopClass_Intersection3d | ( | ) | [protected] |
virtual Standard_Boolean TopClass_Intersection3d::HasAPoint | ( | ) | const [pure virtual] |
virtual Standard_Boolean TopClass_Intersection3d::IsDone | ( | ) | const [pure virtual] |
virtual DEFINE_STANDARD_ALLOC void TopClass_Intersection3d::Perform | ( | const gp_Lin & | L, |
const Standard_Real | Prm, | ||
const Standard_Real | Tol, | ||
const TopoDS_Face & | Face | ||
) | [pure virtual] |
virtual const IntCurveSurface_IntersectionPoint& TopClass_Intersection3d::Point | ( | ) | const [pure virtual] |
virtual TopAbs_State TopClass_Intersection3d::State | ( | ) | const [pure virtual] |