/[escript]/trunk/escript/src/FunctionSpace.cpp
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Contents of /trunk/escript/src/FunctionSpace.cpp

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Revision 117 - (show annotations)
Fri Apr 1 05:48:57 2005 UTC (14 years, 6 months ago) by jgs
Original Path: trunk/esys2/escript/src/Data/FunctionSpace.cpp
File size: 3695 byte(s)
*** empty log message ***

1 /* $Id$ */
2 /*
3 ******************************************************************************
4 * *
5 * COPYRIGHT ACcESS 2004 - All Rights Reserved *
6 * *
7 * This software is the property of ACcESS. No part of this code *
8 * may be copied in any form or by any means without the expressed written *
9 * consent of ACcESS. Copying, use or modification of this software *
10 * by any unauthorised person is illegal unless that person has a software *
11 * license agreement with ACcESS. *
12 * *
13 ******************************************************************************
14 */
15
16 #include "escript/Data/AbstractContinuousDomain.h"
17 #include "escript/Data/FunctionSpaceException.h"
18 #include "escript/Data/Data.h"
19 #include "escript/Data/DataFactory.h"
20
21 #include "escript/Data/FunctionSpace.h"
22
23 #include <iostream>
24 #include <sstream>
25
26 namespace escript {
27
28 //
29 // Create a null domain for use with a default constructed function space
30 NullDomain FunctionSpace::m_nullDomainValue;
31
32 FunctionSpace::FunctionSpace():
33 m_domain(static_cast<AbstractDomain*>(&m_nullDomainValue)),
34 m_functionSpaceType(m_nullDomainValue.getFunctionCode())
35 {
36 }
37
38 FunctionSpace::FunctionSpace(const AbstractDomain& domain,
39 int functionSpaceType):
40 m_domain(dynamic_cast<const AbstractDomain*>(&domain)),
41 m_functionSpaceType(functionSpaceType)
42 {
43 if (!m_domain->isValidFunctionSpaceType(functionSpaceType)) {
44 std::stringstream temp;
45 temp << "Invalid function space type: " << functionSpaceType
46 <<" for domain: " << m_domain->getDescription();
47 throw FunctionSpaceException(temp.str());
48 }
49 }
50
51 std::pair<int,int>
52 FunctionSpace::getDataShape() const
53 {
54 return m_domain->getDataShape(m_functionSpaceType);
55 }
56
57 int
58 FunctionSpace::getTypeCode() const
59 {
60 return m_functionSpaceType;
61 }
62
63 const
64 AbstractDomain&
65 FunctionSpace::getDomain() const
66 {
67 return *m_domain;
68 }
69
70 std::string
71 FunctionSpace::toString() const
72 {
73 std::stringstream temp;
74 temp << "Function space type: "
75 << m_domain->functionSpaceTypeAsString(m_functionSpaceType)
76 << " on " << m_domain->getDescription();
77 return temp.str();
78 }
79
80 int
81 FunctionSpace::getTagFromSampleNo(int sampleNo) const
82 {
83 return m_domain->getTagFromSampleNo(m_functionSpaceType,sampleNo);
84 }
85
86 int
87 FunctionSpace::getReferenceNoFromSampleNo(int sampleNo) const
88 {
89 return m_domain->getReferenceNoFromSampleNo(m_functionSpaceType,sampleNo);
90 }
91
92 FunctionSpace&
93 FunctionSpace::operator=(const FunctionSpace& other)
94 {
95 //
96 // explicitly defined assignment operator to emphasise pointer copy
97 m_nullDomainValue=other.m_nullDomainValue;
98 m_functionSpaceType=other.m_functionSpaceType;
99 m_domain=other.m_domain;
100 return *this;
101 }
102
103 bool
104 FunctionSpace::operator==(const FunctionSpace& other) const
105 {
106 return (other.m_domain==m_domain && other.m_functionSpaceType==m_functionSpaceType);
107 }
108
109 bool
110 FunctionSpace::operator!=(const FunctionSpace& other) const
111 {
112 return (!(other==*this));
113 }
114
115 escript::Data
116 FunctionSpace::getX() const
117 {
118 Data out=escript::Vector(0,*this,true);
119 getDomain().setToX(out);
120 return out;
121 }
122
123 escript::Data
124 FunctionSpace::getNormal() const
125 {
126 Data out=escript::Vector(0,*this,true);
127 getDomain().setToNormal(out);
128 return out;
129 }
130
131 escript::Data
132 FunctionSpace::getSize() const
133 {
134 Data out=escript::Scalar(0,*this,true);
135 getDomain().setToSize(out);
136 return out;
137 }
138
139 } // end of namespace

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