Gabriele Cosmo
138 lines
5.0 KiB
C++
138 lines
5.0 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4SurfaceBoundary.hh,v 1.8 2006/06/29 18:40:45 gunter Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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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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HepGeom::Transform3D::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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