Gabriele Cosmo
119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4SurfaceBoundary.hh,v 1.5 2000/11/08 14:22:04 gcosmo Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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//
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// ----------------------------------------------------------------------
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// Class G4SurfaceBoundary
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//
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// Class description:
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//
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// Definition of a surface boundary.
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// Authors: J.Sulkimo, P.Urban.
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// Revisions by: L.Broglia, G.Cosmo.
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// ----------------------------------------------------------------------
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#ifndef included_G4SurfaceBoundary
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#define included_G4SurfaceBoundary
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#include "G4Point3D.hh"
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#include "G4Point3DVector.hh"
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#include "G4Vector3D.hh"
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#include "G4Transform3D.hh"
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#include "G4Curve.hh"
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#include "G4CurveVector.hh"
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#include "G4CurveRayIntersection.hh"
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class G4Ray;
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class G4CylindricalSurface;
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class G4SurfaceBoundary
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{
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public: // with description
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G4SurfaceBoundary();
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~G4SurfaceBoundary();
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// Constructor & destructor.
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void Init(const G4CurveVector& bounds0);
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// Initializes with a set of closed curves, each of which is an
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// (inner or outer) boundary. No responsibility to delete the curves
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// is taken.
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inline const G4CurveVector& GetBounds() const;
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// Returns closed curve boundaries.
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inline const G4BoundingBox3D& BBox() const;
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// Returns the bounding-box.
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G4SurfaceBoundary* Project(const G4Transform3D& tr=
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G4Transform3D::Identity);
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// Projection onto the xy plane after transformation tr.
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// The returned object is allocated dynamically; it is the caller's
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// responsibility to delete it.
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// In case the projection maps a line into a point, 0 is returned.
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G4int IntersectRay2D(const G4Ray& ray);
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// Intersects a 2D boundary with a ray. The ray is projected onto the
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// xy plane. If no intersection 0 is returned, otherwise 1 is returned.
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// and the intersection set to intersection0.
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// The intersection point is: ray.start+ray.dir*intersection0.
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G4bool Tangent(G4CurvePoint& cp, G4Vector3D& v);
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// Tangent vector to a curve at the point with parameter u.
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// Returns true if exists. The vector is stored in v.
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public: // without description
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void SplitWithPlane(const G4Point3D& p0,
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const G4Vector3D& n,
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G4SurfaceBoundary*& new1,
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G4SurfaceBoundary*& new2 );
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// Splits a boundary with a plane containing p0 with normal n.
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// Pointers to the resulting boundaries are put into new1 and new2.
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// It is the caller's responsibility to delete them.
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// To be implemented yet.
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void SplitWithCylinder(const G4CylindricalSurface& c,
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G4SurfaceBoundary*& new1,
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G4SurfaceBoundary*& new2 );
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// Splits a boundary with a cylindrical surface.
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// Pointers to the resulting boundaries are put into new1 and new2.
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// It is the caller's responsibility to delete them.
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// To be implemented yet.
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inline G4int GetNumberOfPoints() const;
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inline const G4Point3D& GetPoint(G4int Count) const;
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// Functions probably not used and should be removed in the future
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// void IntersectRay2D(const G4Ray& ray, G4CurveRayIntersection& is);
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private:
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G4SurfaceBoundary(const G4SurfaceBoundary&);
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G4SurfaceBoundary& operator=(const G4SurfaceBoundary&);
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// Private copy constructor and assignment operator.
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private:
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G4Point3DVector points;
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G4CurveVector bounds;
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G4BoundingBox3D bBox;
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// to speed up the tangent computation
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G4CurveRayIntersection lastIntersection;
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};
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#include "G4SurfaceBoundary.icc"
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#endif
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