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ST_Area.cpp
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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/dataaccess/query/ST_Area.cpp
22 
23  \brief Spatial area operator.
24 */
25 
26 // TerraLib
27 #include "../../geometry/Geometry.h"
28 #include "LiteralGeom.h"
29 #include "LiteralBool.h"
30 #include "PropertyName.h"
31 #include "ST_Area.h"
32 
34  : Function("st_area")
35 {
36  LiteralGeom* geom = new LiteralGeom(g);
37  m_args.push_back(geom);
38 }
39 
41  : Function("st_area")
42 {
43  m_args.push_back(prop.clone());
44 }
45 
47  : Function("st_area")
48 {
49  LiteralGeom* geom = new LiteralGeom(g);
50  LiteralBool* precision = new LiteralBool(p);
51 
52  m_args.push_back(geom);
53  m_args.push_back(precision);
54 
55 }
56 
57 te::da::ST_Area::ST_Area(const PropertyName& prop, const bool& p)
58  : Function("st_area")
59 {
60  LiteralBool* precision = new LiteralBool(p);
61 
62  m_args.push_back(prop.clone());
63  m_args.push_back(precision);
64 }
65 
67  : Function("st_area")
68 {
69  m_args.push_back(e.clone());
70 }
71 
72 te::da::ST_Area::ST_Area(const Expression& e, const bool& p)
73  : Function("st_area")
74 {
75  LiteralBool* precision = new LiteralBool(p);
76 
77  m_args.push_back(e.clone());
78  m_args.push_back(precision);
79 }
80 
82 {
83 }
84 
86 {
88  return *this;
89 }
90 
92 {
93  return new ST_Area(*this);
94 }
95 
A class that models the name of any property of an object.
A class that models the name of any property of an object.
Definition: PropertyName.h:50
A class that models a Literal Bool value.
This class models a bool Literal value.
Definition: LiteralBool.h:43
TE_DEFINE_VISITABLE ST_Area(const te::gm::Geometry &g)
Constructor.
Definition: ST_Area.cpp:33
Spatial area operator.
This is an abstract class that models a query expression.
Definition: Expression.h:47
Expression * clone() const
It creates a new copy of this expression.
Spatial area operator.
Definition: ST_Area.h:50
Expression * clone() const
It creates a new copy of this expression.
Definition: ST_Area.cpp:91
ST_Area & operator=(const ST_Area &rhs)
Definition: ST_Area.cpp:85
A class that models a Function expression.
Definition: Function.h:47
Geometry is the root class of the geometries hierarchy, it follows OGC and ISO standards.
Definition: Geometry.h:73
Function & operator=(const Function &rhs)
Definition: Function.cpp:44
~ST_Area()
Destructor.
Definition: ST_Area.cpp:81
virtual Expression * clone() const =0
It creates a new copy of this expression.
A class that models a literal for Geometry values.
std::vector< Expression * > m_args
The list of arguments.
Definition: Function.h:118
A class that models a literal for Geometry values.
Definition: LiteralGeom.h:46