GPMWeightsSquaredInverseDistanceStrategy.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
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 GPMWeightsSquaredInverseDistanceStrategy.h
22
23  \brief This class defines a class to calculates a weight for a GPM using Squared Inverse Distance strategy.
24 */
25
26 #ifndef __TERRALIB_SA_INTERNAL_GPMWEIGHTSQUAREDINVERSEDISTANCESTRATEGY_H
27 #define __TERRALIB_SA_INTERNAL_GPMWEIGHTSQUAREDINVERSEDISTANCESTRATEGY_H
28
29 // Terralib Includes
30 #include "../Config.h"
31 #include "../Enums.h"
33
34 // STL Includes
35 #include <memory>
36 #include <string>
37
38 namespace te
39 {
40  namespace sa
41  {
42  // Forward declarations
43  class GeneralizedProximityMatrix;
44
45  /*!
46  \class GPMWeightsSquaredInverseDistanceStrategy
47
48  \brief This class defines a class to calculates a weight for a GPM using Inverse Distance strategy.
49
50  Formula: w = (a*1/(dist_centroids)2 + b*1/(dist_to_net)2 + c*1/(dist_net_connection)2)*factor
51
52  These values can be normalized or not.
53
54  \sa GPMBuilder
55  */
56
58  {
59  public:
60
61  /*! \brief Default constructor. */
62  GPMWeightsSquaredInverseDistanceStrategy(bool normalize, double a = 1.0, double factor = 1.0);
63
64  /*! \brief Virtual destructor. */
66
67
68  /** @name Methods
69  * Methods used by the GPM constructor
70  */
71  //@{
72
73  public:
74
75  virtual void calculate(GeneralizedProximityMatrix* gpm);
76
77  //@}
78
79  protected:
80
82
83  double m_a;
84
85  double m_factor;
86  };
87
88  } // end namespace sa
89 } // end namespace te
90
91 #endif //__TERRALIB_SA_INTERNAL_GPMWEIGHTSQUAREDINVERSEDISTANCESTRATEGY_H
This class defines a Generalized Proximity Matrix.
URI C++ Library.
This class defines a class to calculates a weight for a GPM using Inverse Distance strategy...
This class defines a an Abstract class to calculates a weight for a GPM.
#define TESAEXPORT
You can use this macro in order to export/import classes and functions from this module.
Definition: Config.h:133
This class defines a an Abstract class to calculates a weight for a GPM.