Gabriele Cosmo
134 lines
4.4 KiB
C++
134 lines
4.4 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: G4BSplineSurface.hh,v 1.11 2006/06/29 18:38:11 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 G4BSplineSurface
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//
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// Class description:
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//
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// Definition of a generic BSpline surface.
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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 __BSPLINESURFACE_H
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#define __BSPLINESURFACE_H
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#include "G4Point3D.hh"
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#include "G4PointRat.hh"
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#include "G4Surface.hh"
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#include "G4ProjectedSurface.hh"
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#include "G4UVHit.hh"
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class G4BSplineSurface : public G4Surface
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{
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public: // with description
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G4BSplineSurface();
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G4BSplineSurface(const char* nurbfilename, G4Ray& rayref);
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G4BSplineSurface(G4int u, G4int v, G4KnotVector& u_kv, G4KnotVector& v_kv,
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G4ControlPoints& cp);
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virtual ~G4BSplineSurface();
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// Constructors & destructor.
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G4int Intersect(const G4Ray&);
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void CalcBBox();
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// Finds the bounds of the b-spline surface.
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// The bounding box is used for a preliminary check of intersection.
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inline G4double GetUHit() const;
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inline G4double GetVHit() const;
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G4double ClosestDistanceToPoint(const G4Point3D&);
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inline void Reset();
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inline G4int GetRows() const;
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inline G4int GetCols() const;
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inline G4Point3D GetControlPoint(G4int a, G4int b) const;
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// Accessors for control points.
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public:
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inline G4int MyType() const;
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private:
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G4BSplineSurface(const G4BSplineSurface&);
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G4BSplineSurface& operator=(const G4BSplineSurface&);
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// Private copy constructor and assignment operator.
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void FindIntersections(const G4Ray&);
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inline G4int GetOrder(G4int direction) const;
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inline void PutOrder(G4int direction, G4int value);
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void AddHit(G4double u, G4double v);
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void ProjectNURBSurfaceTo2D( const G4Plane& ,const G4Plane&,
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register G4ProjectedSurface*);
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// Projects the nurb surface so that the z-axis = ray.
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G4ProjectedSurface* CopyToProjectedSurface(const G4Ray&);
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G4Point3D FinalIntersection();
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// L. Broglia
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// Because G4BSplineSurface::Evaluate hides the virtual function
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// G4Surface::Evaluate(const G4Ray&), I modified the function name
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// G4Point3D Evaluate();
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G4Point3D BSEvaluate();
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G4PointRat& InternalEvalCrv(G4int i, G4ControlPoints *crv);
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G4Point3D Evaluation(const G4Ray&);
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inline G4Vector3D SurfaceNormal(const G4Point3D& Pt) const;
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private:
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G4SurfaceList bezier_list;
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G4SurfaceList projected_list;
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short dir;
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G4int order[2];
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G4KnotVector *u_knots;
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G4KnotVector *v_knots;
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G4KnotVector *tmp_knots;
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G4ControlPoints *ctl_points;
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G4UVHit* Hit;
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G4UVHit* first_hit;
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G4int ord;
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G4int k_index;
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G4double param;
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G4int Rational;
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};
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#include "G4BSplineSurface.icc"
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#endif
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