HistogramUtils.h
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1 /* Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.
2 
3  This file is part of the TerraLib - a Framework for building GIS enabled applications.
4 
5  TerraLib is free software: you can redistribute it and/or modify
6  it under the terms of the GNU Lesser General Public License as published by
7  the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  TerraLib is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  GNU Lesser General Public License for more details.
14 
15  You should have received a copy of the GNU Lesser General Public License
16  along with TerraLib. See COPYING. If not, write to
17  TerraLib Team at <terralib-team@terralib.org>.
18 */
19 
20 /*!
21  \file terralib/qt/widgets/charts/HistogramUtils.h
22 
23  \brief This file contains a set of utility histogram functions
24 */
25 
26 #ifndef __TERRALIB_QT_WIDGETS_INTERNAL_HISTOGRAMUTILS_H
27 #define __TERRALIB_QT_WIDGETS_INTERNAL_HISTOGRAMUTILS_H
28 
29 //TerraLib
30 #include "../Config.h"
31 #include "../../../datatype/SimpleData.h"
32 #include "../../../dataaccess/dataset/ObjectId.h"
33 
34 //STL
35 #include <map>
36 #include <set>
37 #include <string>
38 
39 // Boost
40 #include <boost/multi_index_container.hpp>
41 #include <boost/multi_index/ordered_index.hpp>
42 #include <boost/multi_index/identity.hpp>
43 #include <boost/multi_index/member.hpp>
44 #include <boost/multi_index/mem_fun.hpp>
45 
46 namespace te
47 {
48  namespace qt
49  {
50  namespace widgets
51  {
52 
53  //The struct used to sort the elements of the HistogramValues map
55  {
57  {
58  int type = v1->getTypeCode();
59  switch(type)
60  {
62  return (static_cast<te::dt::Double*>(v1)->getValue() < static_cast<te::dt::Double*>(v2)->getValue());
64  return (static_cast<te::dt::String*>(v1)->getValue() < static_cast<te::dt::String*>(v2)->getValue());
65  default:
66  return false;
67  }
68  }
69  };
70 
71  typedef std::map<te::dt::AbstractData*, unsigned int, CompareHistogramInterval> HistogramValues; //!< Histogram's values
72 
73  // The struct used to store the interval and it's object id
75  {
78 
79  IntervalToObjectId(te::dt::AbstractData* p_interval, te::da::ObjectId* p_oid) : interval(p_interval), oid(p_oid){}
80 
81  bool operator<(const IntervalToObjectId& v) const
82  {
84  return comp(interval, v.interval);
85  }
86 
87  std::string getObjIdAsString() const
88  {
89  return oid->getValueAsString();
90  }
91  };
92 
93  // define a multiply indexed set with indices by
94  typedef boost::multi_index::multi_index_container<
95  IntervalToObjectId,
96  boost::multi_index::indexed_by<
97 
98  // sort by less<string> or < on Interval
99  boost::multi_index::ordered_non_unique<
100  boost::multi_index::identity<IntervalToObjectId> >,
101 
102  // sort by less<string> on objectID
103  boost::multi_index::ordered_unique<
104  boost::multi_index::const_mem_fun<IntervalToObjectId, std::string, &IntervalToObjectId::getObjIdAsString> >
105  >
107 
108  } // end namespace widgets
109  } // end namespace qt
110 } // end namespace te
111 
112 #endif // __TERRALIB_QT_WIDGETS_INTERNAL_HISTOGRAMUTILS_H
virtual int getTypeCode() const =0
It returns the data type code associated to the data value.
IntervalToObjectId(te::dt::AbstractData *p_interval, te::da::ObjectId *p_oid)
bool operator<(const IntervalToObjectId &v) const
std::string getObjIdAsString() const
te::dt::AbstractData * interval
This class represents an unique id for a data set element.
Definition: ObjectId.h:47
URI C++ Library.
std::string getValueAsString() const
It gets the properties values used to uniquely identify a data set element as string.
boost::multi_index::multi_index_container< IntervalToObjectId, boost::multi_index::indexed_by< boost::multi_index::ordered_non_unique< boost::multi_index::identity< IntervalToObjectId > >, boost::multi_index::ordered_unique< boost::multi_index::const_mem_fun< IntervalToObjectId, std::string,&IntervalToObjectId::getObjIdAsString > > > > IntervalToObjectIdSet
A base class for values that can be retrieved from the data access module.
Definition: AbstractData.h:57
std::map< te::dt::AbstractData *, unsigned int, CompareHistogramInterval > HistogramValues
Histogram's values.
bool operator()(te::dt::AbstractData *v1, te::dt::AbstractData *v2) const