Clipper
symop.h
1 
4 //C Copyright (C) 2000-2006 Kevin Cowtan and University of York
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43 
44 
45 #ifndef CLIPPER_SYMOP
46 #define CLIPPER_SYMOP
47 
48 
49 #include "clipper_types.h"
50 
51 
52 namespace clipper
53 {
54  // forward definitions
55  class Cell;
56  class Grid;
57  class RTop_orth;
58 
59 
61 
64  class RTop_frac : public RTop<>
65  {
66  public:
68  inline RTop_frac() {}
70  inline explicit RTop_frac( const RTop<>& o ) : RTop<>( o ) {}
72  inline explicit RTop_frac( const Mat33<>& r ) : RTop<>( r ) {}
74  explicit RTop_frac( const String& strop );
76  inline RTop_frac( const Mat33<>& r, const Vec3<>& t ) : RTop<>( r, t ) {}
78  RTop_orth rtop_orth( const Cell& cell ) const;
80  RTop_frac inverse() const;
82  static RTop_frac identity();
84  static RTop_frac null();
85  };
86 
87 
89 
92  class Symop : public RTop_frac
93  {
94  public:
96  inline Symop() {}
98  explicit Symop( const RTop<>& rt );
100  explicit Symop( const ftype mat[4][4] );
102  String format() const;
103  };
104 
105 
107 
108  class Isymop : public RTop<int>
109  {
110  public:
112  inline Isymop() {}
114  inline explicit Isymop( const RTop<int>& rt ) : RTop<int>(rt) {}
116  Isymop( const Symop& symop, const Grid& grid );
117  };
118 
119 
121 
132  {
133  public:
135  inline Symop_code() {}
137  inline explicit Symop_code( const int& code ) : code_(code) {}
139  explicit Symop_code( const Symop& op );
141  explicit Symop_code( const Isymop& op );
143  void init( const Isymop& op );
144  Symop_code code_rot() const;
145  Symop_code code_trn() const;
146  Symop symop() const;
147  Isymop isymop() const;
148  static Symop_code identity() { return Symop_code(0); }
149  inline operator int() const { return code_; }
151  private:
152  int code_;
153  };
154 
155 
156 } // namespace clipper
157 
158 #endif