[831] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
| 27 | // $Id: G4BSplineSurface.hh,v 1.11 2006/06/29 18:38:11 gunter Exp $ |
---|
[1228] | 28 | // GEANT4 tag $Name: geant4-09-03 $ |
---|
[831] | 29 | // |
---|
| 30 | // ---------------------------------------------------------------------- |
---|
| 31 | // Class G4BSplineSurface |
---|
| 32 | // |
---|
| 33 | // Class description: |
---|
| 34 | // |
---|
| 35 | // Definition of a generic BSpline surface. |
---|
| 36 | |
---|
| 37 | // Authors: J.Sulkimo, P.Urban. |
---|
| 38 | // Revisions by: L.Broglia, G.Cosmo. |
---|
| 39 | // ---------------------------------------------------------------------- |
---|
| 40 | #ifndef __BSPLINESURFACE_H |
---|
| 41 | #define __BSPLINESURFACE_H |
---|
| 42 | |
---|
| 43 | #include "G4Point3D.hh" |
---|
| 44 | #include "G4PointRat.hh" |
---|
| 45 | #include "G4Surface.hh" |
---|
| 46 | #include "G4ProjectedSurface.hh" |
---|
| 47 | #include "G4UVHit.hh" |
---|
| 48 | |
---|
| 49 | class G4BSplineSurface : public G4Surface |
---|
| 50 | { |
---|
| 51 | |
---|
| 52 | public: // with description |
---|
| 53 | |
---|
| 54 | G4BSplineSurface(); |
---|
| 55 | G4BSplineSurface(const char* nurbfilename, G4Ray& rayref); |
---|
| 56 | G4BSplineSurface(G4int u, G4int v, G4KnotVector& u_kv, G4KnotVector& v_kv, |
---|
| 57 | G4ControlPoints& cp); |
---|
| 58 | virtual ~G4BSplineSurface(); |
---|
| 59 | // Constructors & destructor. |
---|
| 60 | |
---|
| 61 | G4int Intersect(const G4Ray&); |
---|
| 62 | void CalcBBox(); |
---|
| 63 | // Finds the bounds of the b-spline surface. |
---|
| 64 | // The bounding box is used for a preliminary check of intersection. |
---|
| 65 | |
---|
| 66 | inline G4double GetUHit() const; |
---|
| 67 | inline G4double GetVHit() const; |
---|
| 68 | |
---|
| 69 | G4double ClosestDistanceToPoint(const G4Point3D&); |
---|
| 70 | |
---|
| 71 | inline void Reset(); |
---|
| 72 | |
---|
| 73 | inline G4int GetRows() const; |
---|
| 74 | inline G4int GetCols() const; |
---|
| 75 | inline G4Point3D GetControlPoint(G4int a, G4int b) const; |
---|
| 76 | // Accessors for control points. |
---|
| 77 | |
---|
| 78 | public: |
---|
| 79 | |
---|
| 80 | inline G4int MyType() const; |
---|
| 81 | |
---|
| 82 | private: |
---|
| 83 | |
---|
| 84 | G4BSplineSurface(const G4BSplineSurface&); |
---|
| 85 | G4BSplineSurface& operator=(const G4BSplineSurface&); |
---|
| 86 | // Private copy constructor and assignment operator. |
---|
| 87 | |
---|
| 88 | void FindIntersections(const G4Ray&); |
---|
| 89 | |
---|
| 90 | inline G4int GetOrder(G4int direction) const; |
---|
| 91 | inline void PutOrder(G4int direction, G4int value); |
---|
| 92 | |
---|
| 93 | void AddHit(G4double u, G4double v); |
---|
| 94 | void ProjectNURBSurfaceTo2D( const G4Plane& ,const G4Plane&, |
---|
| 95 | register G4ProjectedSurface*); |
---|
| 96 | // Projects the nurb surface so that the z-axis = ray. |
---|
| 97 | |
---|
| 98 | G4ProjectedSurface* CopyToProjectedSurface(const G4Ray&); |
---|
| 99 | G4Point3D FinalIntersection(); |
---|
| 100 | |
---|
| 101 | // L. Broglia |
---|
| 102 | // Because G4BSplineSurface::Evaluate hides the virtual function |
---|
| 103 | // G4Surface::Evaluate(const G4Ray&), I modified the function name |
---|
| 104 | // G4Point3D Evaluate(); |
---|
| 105 | G4Point3D BSEvaluate(); |
---|
| 106 | |
---|
| 107 | G4PointRat& InternalEvalCrv(G4int i, G4ControlPoints *crv); |
---|
| 108 | |
---|
| 109 | G4Point3D Evaluation(const G4Ray&); |
---|
| 110 | |
---|
| 111 | inline G4Vector3D SurfaceNormal(const G4Point3D& Pt) const; |
---|
| 112 | |
---|
| 113 | private: |
---|
| 114 | |
---|
| 115 | G4SurfaceList bezier_list; |
---|
| 116 | G4SurfaceList projected_list; |
---|
| 117 | short dir; |
---|
| 118 | G4int order[2]; |
---|
| 119 | G4KnotVector *u_knots; |
---|
| 120 | G4KnotVector *v_knots; |
---|
| 121 | G4KnotVector *tmp_knots; |
---|
| 122 | G4ControlPoints *ctl_points; |
---|
| 123 | G4UVHit* Hit; |
---|
| 124 | G4UVHit* first_hit; |
---|
| 125 | G4int ord; |
---|
| 126 | G4int k_index; |
---|
| 127 | G4double param; |
---|
| 128 | G4int Rational; |
---|
| 129 | }; |
---|
| 130 | |
---|
| 131 | #include "G4BSplineSurface.icc" |
---|
| 132 | |
---|
| 133 | #endif |
---|