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data.hh
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19 //------------------------------------------------------------------------------
20 
21 /*
22  abstract base class for generic data
23 
24  Author: Ansgar Philippsen
25 */
26 
27 #ifndef IMG_DATA_H
28 #define IMG_DATA_H
29 
30 #include <cmath>
31 
32 #include <boost/shared_ptr.hpp>
33 
34 #include <ost/img/module_config.hh>
35 #include <ost/base.hh>
36 #include "point.hh"
37 #include "extent.hh"
38 #include "data_types.hh"
39 #include "extent_iterator.hh"
40 #include "vecmat.hh"
41 
42 
43 namespace ost { namespace img {
44 
45 
46 //using namespace info;
47 
48 // forward declaration
49 class NonModAlgorithm;
50 class ModIPAlgorithm;
51 class DataObserver;
52 class PixelSampling;
53 class ImageHandle;
54 
56 
71 public:
75  ConstData();
76  virtual ~ConstData();
78 
82  virtual DataType GetType() const = 0;
84 
86  virtual DataDomain GetDomain() const = 0;
87 
89 
92  bool IsSpatial() const {return GetDomain()==SPATIAL;}
93 
95 
98  bool IsFrequency() const {
99  return GetDomain()==FREQUENCY || GetDomain()==HALF_FREQUENCY;
100  }
101 
103 
106  bool IsReal() const {return GetType()==REAL;}
107 
109 
112  bool IsComplex() const {return GetType()==COMPLEX;}
113 
115  virtual Extent GetExtent() const = 0;
116 
118  virtual Point GetSpatialOrigin() const = 0;
119 
121 
124  Size GetSize() const {return GetExtent().GetSize();}
125 
127 
133  virtual Real GetReal(const Point &p) const = 0;
135 
137  virtual Complex GetComplex(const Point &p) const = 0;
138 
140  virtual Real GetIntpolReal(const Vec3 &v) const = 0;
141  virtual Real GetIntpolReal(const Vec2 &v) const = 0;
142  virtual Real GetIntpolReal(const Real &d) const = 0;
143 
145  virtual Complex GetIntpolComplex(const Vec3 &v) const = 0;
146  virtual Complex GetIntpolComplex(const Vec2 &v) const = 0;
147  virtual Complex GetIntpolComplex(const Real &d) const = 0;
148 
149 
154  /*
156  Only a NonModAlgorithm can be applied to a Data instance,
157  the Mod IP/OP variants are part of the ImageHandle interface
158  */
159  virtual void Apply(NonModAlgorithm& a) const = 0;
160  virtual void ApplyIP(NonModAlgorithm& a) const=0;
162 
163 
167  virtual void Attach(DataObserver *o) const = 0;
169 
171  virtual void Detach(DataObserver *o) const = 0;
172 
174  virtual void Notify() const = 0;
176 
181  virtual Real OverallDifference(const ConstData& d) const;
182  virtual Real NormDifference(const ConstData& d) const;
184 
185 
195 
197  Vec3 GetPixelSampling() const;
198 
200  Vec3 GetSpatialSampling() const;
201 
203  Vec3 GetFrequencySampling() const;
204 
205  // Index to coordinate conversion
206  /*
207  Returns the physical dimensions of a given Point based on
208  the sampling of the current domain.
209  */
210  //Vec3 IndexToCoord(const Point &p) const;
211 
212  // Convert coordinates back to (fractional) indices
213  /*
214  Returns the location within the Data that corresponds to
215  the given physical coordinate.
216  */
217  //Vec3 CoordToIndex(const Vec3& c) const;
219 
220 
221 
222  protected:
223  ConstData(const ConstData& d);
224  ConstData& operator=(const ConstData& d);
225 
231  virtual PixelSampling& Sampling() = 0;
232  virtual const PixelSampling& Sampling() const = 0;
234 
236  void CalcIntpolWeights(Vec3 v, Real w[8], Point p[8]) const;
237 
238 private:
239 
240 };
241 
242 
244 
254 public:
258  Data();
259  virtual ~Data();
261 
262 
266  virtual void SetSpatialOrigin(const Point& o) = 0;
269 
273 
274  void SetPixelSampling(const Vec3&);
276  void SetPixelSampling(Real d) {SetPixelSampling(Vec3(d,d,d));}
278  void SetSpatialSampling(const Vec3&);
281 
282  virtual void Apply(NonModAlgorithm& a) const=0;
283  virtual void ApplyIP(NonModAlgorithm& a) const=0;
284 
285  protected:
286  Data(const Data& d);
287  Data& operator=(const Data& d);
288 };
289 
290 
291 
292 }} // namespace img
293 
294 #endif
bool IsReal() const
Returns true if data is currently of real type.
Definition: data.hh:106
Non-modifying Algorithm, abstract base class.
DataDomain
underlying data type
Definition: data_types.hh:42
float Real
Definition: base.hh:44
std::complex< Real > Complex
Definition: base.hh:51
Abstract base class for data.
Definition: data.hh:253
Abstract base class for read-only data.
Definition: data.hh:70
Helper class to handle pixel sampling.
class encapsulating 1D to 3D size
Definition: size.hh:39
Defines lower and upper valid indices.
Definition: extent.hh:60
Abstract base class of data observer.
bool IsComplex() const
Returns true if data is currently of complex type.
Definition: data.hh:112
void SetPixelSampling(Real d)
Set uniform pixel dimensions of the current domain.
Definition: data.hh:276
Size GetSize() const
Return Size.
Definition: data.hh:124
void SetSpatialSampling(Real d)
set spatial pixel dimensions (uniform)
Definition: data.hh:280
bool IsSpatial() const
Returns true if data is currently in spatial domain.
Definition: data.hh:92
class encapsulating 1D to 3D point
Definition: point.hh:43
bool IsFrequency() const
Returns true if data is currently in frequency domain.
Definition: data.hh:98
#define DLLEXPORT_OST_IMG_BASE