1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*=========================================================================
Program: Visualization Toolkit
Module: vtkDiagonalMatrixSource.cxx
-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkDenseArray.h"
#include "vtkDiagonalMatrixSource.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSmartPointer.h"
#include "vtkSparseArray.h"
// ----------------------------------------------------------------------
vtkStandardNewMacro(vtkDiagonalMatrixSource);
// ----------------------------------------------------------------------
vtkDiagonalMatrixSource::vtkDiagonalMatrixSource() :
ArrayType(DENSE),
Extents(3),
Diagonal(1.0),
SuperDiagonal(0.0),
SubDiagonal(0.0),
RowLabel(0),
ColumnLabel(0)
{
this->SetRowLabel("rows");
this->SetColumnLabel("columns");
this->SetNumberOfInputPorts(0);
this->SetNumberOfOutputPorts(1);
}
// ----------------------------------------------------------------------
vtkDiagonalMatrixSource::~vtkDiagonalMatrixSource()
{
this->SetRowLabel(0);
this->SetColumnLabel(0);
}
// ----------------------------------------------------------------------
void vtkDiagonalMatrixSource::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "ArrayType: " << this->ArrayType << endl;
os << indent << "Extents: " << this->Extents << endl;
os << indent << "Diagonal: " << this->Diagonal << endl;
os << indent << "SuperDiagonal: " << this->SuperDiagonal << endl;
os << indent << "SubDiagonal: " << this->SubDiagonal << endl;
os << indent << "RowLabel: " << (this->RowLabel ? this->RowLabel : "") << endl;
os << indent << "ColumnLabel: " << (this->ColumnLabel ? this->ColumnLabel : "") << endl;
}
// ----------------------------------------------------------------------
int vtkDiagonalMatrixSource::RequestData(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector* outputVector)
{
if(this->Extents < 1)
{
vtkErrorMacro(<< "Invalid matrix extents: " << this->Extents << "x" << this->Extents << " array is not supported.");
return 0;
}
vtkArray* array = 0;
switch(this->ArrayType)
{
case DENSE:
array = this->GenerateDenseArray();
break;
case SPARSE:
array = this->GenerateSparseArray();
break;
default:
vtkErrorMacro(<< "Invalid array type: " << this->ArrayType << ".");
return 0;
}
vtkArrayData* const output = vtkArrayData::GetData(outputVector);
output->ClearArrays();
output->AddArray(array);
array->Delete();
return 1;
}
vtkArray* vtkDiagonalMatrixSource::GenerateDenseArray()
{
vtkDenseArray<double>* const array = vtkDenseArray<double>::New();
array->Resize(vtkArrayExtents::Uniform(2, this->Extents));
array->SetDimensionLabel(0, this->RowLabel);
array->SetDimensionLabel(1, this->ColumnLabel);
array->Fill(0.0);
if(this->Diagonal != 0.0)
{
for(vtkIdType i = 0; i != this->Extents; ++i)
array->SetValue(vtkArrayCoordinates(i, i), this->Diagonal);
}
if(this->SuperDiagonal != 0.0)
{
for(vtkIdType i = 0; i + 1 != this->Extents; ++i)
array->SetValue(vtkArrayCoordinates(i, i+1), this->SuperDiagonal);
}
if(this->SubDiagonal != 0.0)
{
for(vtkIdType i = 0; i + 1 != this->Extents; ++i)
array->SetValue(vtkArrayCoordinates(i+1, i), this->SubDiagonal);
}
return array;
}
vtkArray* vtkDiagonalMatrixSource::GenerateSparseArray()
{
vtkSparseArray<double>* const array = vtkSparseArray<double>::New();
array->Resize(vtkArrayExtents::Uniform(2, this->Extents));
array->SetDimensionLabel(0, this->RowLabel);
array->SetDimensionLabel(1, this->ColumnLabel);
if(this->Diagonal != 0.0)
{
for(vtkIdType i = 0; i != this->Extents; ++i)
array->AddValue(vtkArrayCoordinates(i, i), this->Diagonal);
}
if(this->SuperDiagonal != 0.0)
{
for(vtkIdType i = 0; i + 1 != this->Extents; ++i)
array->AddValue(vtkArrayCoordinates(i, i+1), this->SuperDiagonal);
}
if(this->SubDiagonal != 0.0)
{
for(vtkIdType i = 0; i + 1 != this->Extents; ++i)
array->AddValue(vtkArrayCoordinates(i+1, i), this->SubDiagonal);
}
return array;
}
|
