/[escript]/trunk/escript/src/DataTagged.h
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revision 496 by jgs, Tue Feb 7 01:27:14 2006 UTC revision 983 by gross, Tue Feb 20 02:49:08 2007 UTC
# Line 1  Line 1 
1  // $Id$  // $Id$
2    
3  /*  /*
4   ******************************************************************************   ************************************************************
5   *                                                                            *   *          Copyright 2006 by ACcESS MNRF                   *
6   *       COPYRIGHT  ACcESS 2004 -  All Rights Reserved                        *   *                                                          *
7   *                                                                            *   *              http://www.access.edu.au                    *
8   * This software is the property of ACcESS. No part of this code              *   *       Primary Business: Queensland, Australia            *
9   * may be copied in any form or by any means without the expressed written    *   *  Licensed under the Open Software License version 3.0    *
10   * consent of ACcESS.  Copying, use or modification of this software          *   *     http://www.opensource.org/licenses/osl-3.0.php       *
11   * by any unauthorised person is illegal unless that person has a software    *   *                                                          *
12   * license agreement with ACcESS.                                             *   ************************************************************
  *                                                                            *  
  ******************************************************************************  
13  */  */
14    
15  #if !defined escript_DataTagged_20040615_H  #if !defined escript_DataTagged_20040615_H
16  #define escript_DataTagged_20040615_H  #define escript_DataTagged_20040615_H
17    #include "system_dep.h"
18    
19  #include "DataAbstract.h"  #include "DataAbstract.h"
20  #include "DataArrayView.h"  #include "DataArrayView.h"
# Line 58  class DataTagged : public DataAbstract { Line 57  class DataTagged : public DataAbstract {
57    
58       Description:       Description:
59       Default constructor for DataTagged. Creates a DataTagged object for which       Default constructor for DataTagged. Creates a DataTagged object for which
60       the only data-point is a scalar data-point with value 0.0. All tags       the default data-point is a scalar data-point with value 0.0, and no other
61       will map to this single data-point.       tag values are stored.
62        T
63    */    */
64      ESCRIPT_DLL_API
65    DataTagged();    DataTagged();
66    
67    /**    /**
# Line 69  class DataTagged : public DataAbstract { Line 70  class DataTagged : public DataAbstract {
70    
71       Description:       Description:
72       Constructor for DataTagged.       Constructor for DataTagged.
73       \param tagKeys - Input - A vector of integer keys.       \param tagKeys - Input - A vector of integer tags.
74       \param values - Input - A vector of DataArrayViews. If this is empty       \param values - Input - A vector of DataArrayViews. If this is empty
75                       all tag values will be assigned a value of zero. If                       all tag values will be assigned a scalar data-point of value
76                       it contains one value all tag values will be assigned the                       0. If it contains one value all tag values will be assigned
77               same value. Otherwise if there is a mismatch between               this value. Otherwise consecutive tags will be assigned
78               the number of keys and the number of values an exception                       consecutive values.  If there is a mismatch between  the
79                 number of keys and the number of values an exception
80               will be generated.               will be generated.
81       \param defaultValue - Input - Value returned if a requested tag doesn't exist.       \param defaultValue - Input - Value returned if a requested tag doesn't exist.
82       \param what - Input - A description of what this data represents.       \param what - Input - A description of what this data represents.
83        T
84    */    */
85      ESCRIPT_DLL_API
86    DataTagged(const TagListType& tagKeys,    DataTagged(const TagListType& tagKeys,
87               const ValueListType& values,               const ValueListType& values,
88           const DataArrayView& defaultValue,           const DataArrayView& defaultValue,
# Line 94  class DataTagged : public DataAbstract { Line 98  class DataTagged : public DataAbstract {
98       \param shape - Input - The shape of each data-point.       \param shape - Input - The shape of each data-point.
99       \param tags - Input - An array of tags, one for each sample number.       \param tags - Input - An array of tags, one for each sample number.
100       \param data - The data values for each tag.       \param data - The data values for each tag.
101        NB: no unit testing yet
102    */    */
103      ESCRIPT_DLL_API
104    DataTagged(const FunctionSpace& what,    DataTagged(const FunctionSpace& what,
105               const DataArrayView::ShapeType &shape,               const DataArrayView::ShapeType &shape,
106               const int tags[],               const int tags[],
107               const ValueType &data);               const ValueType& data);
108    
109    /**    /**
110       \brief       \brief
111       Slice Constructor for DataTagged.       Alternative Constructor for DataTagged.
112    
113       Description:       Description:
114       Slice Constructor for DataTagged.       Alternative Constructor for DataTagged.
115       Copies a slice from another DataTagged object.       \param what - Input - A description of what this data object represents.
116       \param other - Input - DataTagged object to copy from.       \param shape - Input - The shape of each data-point.
117       \param region - Input - Region to copy.       \param tags - Input - An vector of tags, one for each sample number.
118         \param data - The data values for each tag.
119        NB: no unit testing yet
120    */    */
121    DataTagged(const DataTagged& other,    ESCRIPT_DLL_API
122           const DataArrayView::RegionType& region);    DataTagged(const FunctionSpace& what,
123                 const DataArrayView::ShapeType &shape,
124                 const TagListType& tags,
125                 const ValueType& data);
126    
127    /**    /**
128       \brief       \brief
129       Copy Constructor for DataTagged.       Copy Constructor for DataTagged.
130       Performs a deep copy from the given DataTagged object.       Performs a deep copy from the given DataTagged object.
131        T
132    */    */
133      ESCRIPT_DLL_API
134    DataTagged(const DataTagged& other);    DataTagged(const DataTagged& other);
135    
136    /**    /**
137       \brief       \brief
138       Copy Constructor for DataTagged.       Copy Constructor for DataTagged.
139       Construct a tagged data from a DataConstant object.       Construct a DataTagged object from a DataConstant object.
140       The default value will be that held by the DataConstant object.       The default value will be the value of the DataConstant object.
141        T
142    */    */
143      ESCRIPT_DLL_API
144    DataTagged(const DataConstant& other);    DataTagged(const DataConstant& other);
145    
146    /**    /**
# Line 137  class DataTagged : public DataAbstract { Line 152  class DataTagged : public DataAbstract {
152       sample will be visible via the returned pointer.       sample will be visible via the returned pointer.
153    
154       ** This provides an interface into the data suitable for legacy C code.       ** This provides an interface into the data suitable for legacy C code.
155         ** NB: need to do array bounds checking when accessing returned value!
156        T
157    */    */
158      ESCRIPT_DLL_API
159    virtual    virtual
160    double*    double*
161    getSampleDataByTag(int tag);    getSampleDataByTag(int tag);
# Line 147  class DataTagged : public DataAbstract { Line 165  class DataTagged : public DataAbstract {
165       Write the data as a string.       Write the data as a string.
166       Writes out each tag, including the default, and the data-point which is       Writes out each tag, including the default, and the data-point which is
167       associated with each tag.       associated with each tag.
168        T
169    */    */
170      ESCRIPT_DLL_API
171    virtual    virtual
172    std::string    std::string
173    toString() const;    toString() const;
174     /**
175         \brief
176         dumps the object into a netCDF file
177      */
178      ESCRIPT_DLL_API
179      virtual
180      void
181      dump(const std::string fileName) const;
182    
183    /**    /**
184       \brief       \brief
185       Return the tag number associated with the given data-point number       Return the tag number associated with the given data-point number
186       according to the associated function space.       according to the associated function space.
187        T
188    */    */
189      ESCRIPT_DLL_API
190    virtual    virtual
191    int    int
192    getTagNumber(int dpno);    getTagNumber(int dpno);
# Line 171  class DataTagged : public DataAbstract { Line 201  class DataTagged : public DataAbstract {
201    
202       \param sampleNo - Input - sample number.       \param sampleNo - Input - sample number.
203       \param dataPointNo - Input - data-point number.       \param dataPointNo - Input - data-point number.
204     */      T
205      */
206      ESCRIPT_DLL_API
207    virtual    virtual
208    ValueType::size_type    ValueType::size_type
209    getPointOffset(int sampleNo,    getPointOffset(int sampleNo,
# Line 182  class DataTagged : public DataAbstract { Line 214  class DataTagged : public DataAbstract {
214       addTaggedValues       addTaggedValues
215    
216       Description:       Description:
217       Add the given tags and values to this DataTagged object, by repeatedly       Add the given tags and values to this DataTagged object.
218       using addTaggedValue for each given tag/value pair.       \param tagKeys - Input - A vector of integer tags.
      \param tagKeys - Input - A vector of integer keys.  
219       \param values - Input - A vector of DataArrayViews. If this is empty       \param values - Input - A vector of DataArrayViews. If this is empty
220                        then all given tags will be assigned a value of zero. If                       all tag values will be assigned a scalar data-point of value
221                        it contains one value all tags will be assigned the same value.                       0. If it contains one value all tag values will be assigned
222                        Otherwise if there is a mismatch between the number of tags and               this value. Otherwise consecutive tags will be assigned
223                        the number of values an exception will be generated.                       consecutive values.  If there is a mismatch between  the
224                 number of keys and the number of values an exception
225                 will be generated.
226        T
227    */    */
228      ESCRIPT_DLL_API
229    void    void
230    addTaggedValues(const TagListType& tagKeys,    addTaggedValues(const TagListType& tagKeys,
231                    const ValueListType& values);                      const ValueListType& values);  
# Line 202  class DataTagged : public DataAbstract { Line 237  class DataTagged : public DataAbstract {
237       Description:       Description:
238       Add a single tag and value to this DataTagged object. If this tag already has       Add a single tag and value to this DataTagged object. If this tag already has
239       a value associated with it, setTaggedValue will be used to update this value.       a value associated with it, setTaggedValue will be used to update this value.
240       \param tagKey - Input - Integer key.       \param tagKey - Input - Integer tag.
241       \param value - Input - Single DataArrayView value to be assigned to the tag.       \param value - Input - Single DataArrayView value to be assigned to the tag.
242        T
243    */    */
244      ESCRIPT_DLL_API
245    void    void
246    addTaggedValue(int tagKey,    addTaggedValue(int tagKey,
247                   const DataArrayView& value);                   const DataArrayView& value);
# Line 214  class DataTagged : public DataAbstract { Line 251  class DataTagged : public DataAbstract {
251       setTaggedValues       setTaggedValues
252    
253       Description:       Description:
254       Set the given tags to the given values in this DataTagged object, by repeatedly       Set the given tags to the given values in this DataTagged object.
255       using setTaggedValue for each given tag/value pair.       \param tagKeys - Input - A vector of integer tag.
      \param tagKeys - Input - A vector of integer keys.  
256       \param values - Input - A vector of DataArrayViews. If this is empty       \param values - Input - A vector of DataArrayViews. If this is empty
257                        then all given tags will be assigned a value of zero. If                       all tag values will be assigned a scalar data-point of value
258                        it contains one value all tag values will be assigned the same value.                       0. If it contains one value all tag values will be assigned
259                        Otherwise if there is a mismatch between the number of keys and               this value. Otherwise consecutive tags will be assigned
260                        the number of values an exception will be generated.                       consecutive values.  If there is a mismatch between  the
261                 number of keys and the number of values an exception
262                 will be generated.
263        T
264    */    */
265      ESCRIPT_DLL_API
266    void    void
267    setTaggedValues(const TagListType& tagKeys,    setTaggedValues(const TagListType& tagKeys,
268                    const ValueListType& values);                    const ValueListType& values);
# Line 232  class DataTagged : public DataAbstract { Line 272  class DataTagged : public DataAbstract {
272       setTaggedValue       setTaggedValue
273    
274       Description:       Description:
275       Assign the given value to the given tag. If this tag does not already have a value       Assign the given value to the given tag.
276       associated with it, addTaggedValue will be used to add this tag/value pair.       \param tagKey - Input - Integer tag.
      \param tagKey - Input - Integer key.  
277       \param value - Input - Single DataArrayView value to be assigned to the tag.       \param value - Input - Single DataArrayView value to be assigned to the tag.
278        T
279    */    */
280      ESCRIPT_DLL_API
281    virtual    virtual
282    void    void
283    setTaggedValue(int tagKey,    setTaggedValue(int tagKey,
# Line 247  class DataTagged : public DataAbstract { Line 288  class DataTagged : public DataAbstract {
288       getDataPointByTag       getDataPointByTag
289    
290       Description:       Description:
291       Return a view into the data-point associated with the given tag.       Return data-point associated with the given tag as a DataArrayView.
292       \param tag - Input - Integer key.       \param tag - Input - Integer key.
293        T
294    */    */
295      ESCRIPT_DLL_API
296    DataArrayView    DataArrayView
297    getDataPointByTag(int tag) const;    getDataPointByTag(int tag) const;
298    
# Line 258  class DataTagged : public DataAbstract { Line 301  class DataTagged : public DataAbstract {
301       getDataPoint       getDataPoint
302    
303       Description:       Description:
304       Return a view into the data-point specified by the given sample       Return the data-point specified by the given sample and data-point
305       and data-point numbers.       numbers as a DataArrayView.
306       \param sampleNo - Input.       \param sampleNo - Input.
307       \param dataPointNo - Input.       \param dataPointNo - Input.
308        T
309    */    */
310      ESCRIPT_DLL_API
311    virtual    virtual
312    DataArrayView    DataArrayView
313    getDataPoint(int sampleNo,    getDataPoint(int sampleNo,
314                 int dataPointNo);                 int dataPointNo);
315    
316    /**    /**
317         \brief
318         getData
319    
320         Description:
321         Return pointer to the data
322        T
323      */
324      ESCRIPT_DLL_API
325      const DataArrayView::ValueType::ElementType*
326      DataTagged::getData() const;
327    
328      /**
329       \brief       \brief
330       getTagLookup       getTagLookup
331    
332       Description:       Description:
333       Return a reference to the tag offset lookup table.       Return a reference to the tag offset lookup table.
334        T
335    */    */
336      ESCRIPT_DLL_API
337    const DataMapType&    const DataMapType&
338    getTagLookup() const;    getTagLookup() const;
339    
# Line 285  class DataTagged : public DataAbstract { Line 344  class DataTagged : public DataAbstract {
344       Description:       Description:
345       Return true if the given tag exists within the DataTagged tag map.       Return true if the given tag exists within the DataTagged tag map.
346    
347       NOTE: The DataTagged tag map does not necessarily coincide with the tag       *** NB: The DataTagged tag map does not necessarily coincide with the tag
348       keys in the associated function space.       keys in the associated function space.
349     */      T
350      */
351      ESCRIPT_DLL_API
352    bool    bool
353    isCurrentTag(int tag) const;    isCurrentTag(int tag) const;
354    
# Line 298  class DataTagged : public DataAbstract { Line 359  class DataTagged : public DataAbstract {
359       Description:       Description:
360       Return the default value. This value is associated with any tag which       Return the default value. This value is associated with any tag which
361       is not explicitly recorded in this DataTagged object's tag map.       is not explicitly recorded in this DataTagged object's tag map.
362        T
363    */    */
364      ESCRIPT_DLL_API
365    DataArrayView&    DataArrayView&
366    getDefaultValue();    getDefaultValue();
367    
368      ESCRIPT_DLL_API
369    const DataArrayView&    const DataArrayView&
370    getDefaultValue() const;    getDefaultValue() const;
371    
# Line 310  class DataTagged : public DataAbstract { Line 374  class DataTagged : public DataAbstract {
374       getLength       getLength
375    
376       Description:       Description:
377       Return the number of doubles stored for the Data.       Return the total number of doubles stored for this DataTagged object.
378        T
379    */    */
380      ESCRIPT_DLL_API
381    virtual    virtual
382    ValueType::size_type    ValueType::size_type
383    getLength() const;    getLength() const;
# Line 321  class DataTagged : public DataAbstract { Line 387  class DataTagged : public DataAbstract {
387       getSlice       getSlice
388    
389       Description:       Description:
390       Factory method that returns a newly created DataTagged object.       Factory method that returns a newly created DataTagged object generated
391       The caller is reponsible for managing the object created.       by taking the specified slice from this DataTagged object.
392         The caller is reponsible for managing the returned object.
393        T
394    */    */
395      ESCRIPT_DLL_API
396    virtual    virtual
397    DataAbstract*    DataAbstract*
398    getSlice(const DataArrayView::RegionType& region) const;    getSlice(const DataArrayView::RegionType& region) const;
399    
400    /**    /**
401       \brief       \brief
402       setSlice       Slice Constructor for DataTagged.
403    
404       Description:       Description:
405       Copy the specified region from the given value into this object.       Creates a DataTagged object which is the specified slice
406       \param value - Input - Data to copy from.       from the given DataTagged object.
407       \param region - Input - Region to copy.       \param other - Input - DataTagged object to slice from.
408         \param region - Input - Region to slice.
409        T
410    */    */
411    virtual    ESCRIPT_DLL_API
412    void    DataTagged(const DataTagged& other,
413    setSlice(const DataAbstract* value,           const DataArrayView::RegionType& region);
            const DataArrayView::RegionType& region);  
414    
415    /**    /**
416       \brief       \brief
417       reshapeDataPoint       setSlice
418    
419       Description:       Description:
420       Reshape the data point only if the data-point is currently rank 0.       Copy the given Data object into the specified region in this object.
421       An exception is thrown if the data-point has rank other than 0.       \param other - Input - Data object to copy from.
422       The original data point value is used for all values of the new       \param region - Input - Region to copy into (NB: must have same shape as other!).
423       data point.      T
424    */    */
425      ESCRIPT_DLL_API
426      virtual
427    void    void
428    reshapeDataPoint(const DataArrayView::ShapeType& shape);    setSlice(const DataAbstract* other,
429               const DataArrayView::RegionType& region);
430    
431    /**    /**
432      \brief       \brief
433      Archive the underlying data values to the file referenced       Archive the underlying data values to the file referenced
434      by ofstream. A count of the number of values expected to be written       by ofstream. A count of the number of values expected to be written
435      is provided as a cross-check.       is provided as a cross-check.
436    
437      The return value indicates success (0) or otherwise (1).       The return value indicates success (0) or otherwise (1).
438    */    */
439      ESCRIPT_DLL_API
440    int    int
441    archiveData(std::ofstream& archiveFile,    archiveData(std::ofstream& archiveFile,
442                const DataArrayView::ValueType::size_type noValues) const;                const DataArrayView::ValueType::size_type noValues) const;
443    
444    /**    /**
445      \brief       \brief
446      Extract the number of values specified by noValues from the file       Extract the number of values specified by noValues from the file
447      referenced by ifstream to the underlying data structure.       referenced by ifstream to the underlying data structure.
448    
449      The return value indicates success (0) or otherwise (1).       The return value indicates success (0) or otherwise (1).
450    */    */
451      ESCRIPT_DLL_API
452    int    int
453    extractData(std::ifstream& archiveFile,    extractData(std::ifstream& archiveFile,
454                const DataArrayView::ValueType::size_type noValues);                const DataArrayView::ValueType::size_type noValues);
455    
456      /**
457         \brief
458         Computes a symmetric matrix (A + AT) / 2
459    
460         \param ev - Output - symmetric matrix
461    
462      */
463      ESCRIPT_DLL_API
464      virtual void
465      symmetric(DataAbstract* ev);
466    
467      /**
468         \brief
469         Computes a nonsymmetric matrix (A - AT) / 2
470    
471         \param ev - Output - nonsymmetric matrix
472    
473      */
474      ESCRIPT_DLL_API
475      virtual void
476      nonsymmetric(DataAbstract* ev);
477    
478      /**
479         \brief
480         Computes the trace of a matrix
481    
482         \param ev - Output - the trace of a matrix
483    
484      */
485      ESCRIPT_DLL_API
486      virtual void
487      trace(DataAbstract* ev, int axis_offset);
488    
489      /**
490         \brief
491         swaps components axis0 and axis1
492    
493         \param ev - Output - swapped components
494    
495      */
496      ESCRIPT_DLL_API
497      virtual void
498      swapaxes(DataAbstract* ev, int axis0, int axis1);
499    
500      /**
501         \brief
502         Transpose each data point of this Data object around the given axis.
503    
504         \param ev - Output - the transpose of a matrix
505    
506      */
507      ESCRIPT_DLL_API
508      virtual void
509      transpose(DataAbstract* ev, int axis_offset);
510    
511      /**
512         \brief
513         solves the eigenvalue problem this*V=ev*V for the eigenvalues ev
514    
515         \param ev - Output - eigenvalues in increasing order at each data point
516    
517      */
518      ESCRIPT_DLL_API
519      virtual void
520      eigenvalues(DataAbstract* ev);
521    
522      /**
523         \brief
524         solves the eigenvalue problem this*V=ev*V for the eigenvalues ev and eigenvectors V
525    
526         \param ev - Output - eigenvalues in increasing order at each data point
527         \param V - Output - corresponding eigenvectors. They are normalized such that their length is one
528                             and the first nonzero component is positive.
529         \param tol - Input - eigenvalue with relative distance tol are treated as equal.
530    
531      */
532    
533      ESCRIPT_DLL_API
534      virtual void
535      eigenvalues_and_eigenvectors(DataAbstract* ev,DataAbstract* V,const double tol=1.e-13);
536    
537    
538   protected:   protected:
539    
540   private:   private:
# Line 421  DataTagged::getDefaultValue() const Line 578  DataTagged::getDefaultValue() const
578  }  }
579    
580  inline  inline
581    const DataArrayView::ValueType::ElementType*
582    DataTagged::getData() const
583    {
584       return &(m_data[0]);
585    }
586    
587    inline
588  const DataTagged::DataMapType&  const DataTagged::DataMapType&
589  DataTagged::getTagLookup() const  DataTagged::getTagLookup() const
590  {  {

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