Gabriele Cosmo
131 lines
4.2 KiB
C++
131 lines
4.2 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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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 *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4BSplineSurface.hh,v 1.10 2001/07/11 09:59:31 gunter Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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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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