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
|
// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkSimpleReader
* @brief Superclass for algorithms that are not time or parallel aware
*
*/
#ifndef vtkSimpleReader_h
#define vtkSimpleReader_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkReaderAlgorithm.h"
#include <string> // needed for std::string in the interface
VTK_ABI_NAMESPACE_BEGIN
struct vtkSimpleReaderInternal;
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkSimpleReader : public vtkReaderAlgorithm
{
public:
vtkTypeMacro(vtkSimpleReader, vtkReaderAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Add a filename to be read. Since this superclass handles
* file series to support time, multiple filenames can be added.
* Note that the time values are either integers growing sequentially,
* or are obtained from individual files as supported by the subclass.
*/
void AddFileName(VTK_FILEPATH const char* fname);
/**
* Removes all filenames stored by the reader.
*/
void ClearFileNames();
/**
* Returns the number of filenames stored by the reader.
*/
int GetNumberOfFileNames() const;
/**
* Returns a particular filename stored by the reader.
*/
VTK_FILEPATH const char* GetFileName(int i) const;
/**
* Returns the filename that was last loaded by the reader.
* This is set internally in ReadMesh()
*/
VTK_FILEPATH const char* GetCurrentFileName() const;
///@{
/**
* This is the superclass API overridden by this class
* to provide time support internally. Subclasses should
* not normally have to override these methods.
*/
int ReadTimeDependentMetaData(int timestep, vtkInformation* metadata) override;
int ReadMetaData(vtkInformation* metadata) override;
int ReadMesh(int piece, int npieces, int nghosts, int timestep, vtkDataObject* output) override;
int ReadPoints(int piece, int npieces, int nghosts, int timestep, vtkDataObject* output) override;
int ReadArrays(int piece, int npieces, int nghosts, int timestep, vtkDataObject* output) override;
///@}
/**
* A subclass can override this method to provide an actual
* time value for a given file (this method is called for
* each filename stored by the reader). If time values is not
* available, the subclass does not have to override. This
* will return vtkMath::NaN() if no time value is present
* in the file.
*/
virtual double GetTimeValue(VTK_FILEPATH const std::string& fname);
/**
* A subclass can override this method to provide meta data
* specific to a particular file. In order for this method
* to be called, HasTemporalMetaData has to be set to true.
*/
virtual int ReadMetaDataSimple(
VTK_FILEPATH const std::string& /*fname*/, vtkInformation* /*metadata*/)
{
return 1;
}
/**
* A method that needs to be override by the subclass to provide
* the mesh (topology). Note that the filename is passed to this
* method and should be used by the subclass. The subclass directly
* adds the structure/topology to the provided data object.
*/
virtual int ReadMeshSimple(VTK_FILEPATH const std::string& fname, vtkDataObject* output) = 0;
/**
* A method that needs to be override by the subclass to provide
* the point coordinates. Note that the filename is passed to this
* method and should be used by the subclass. The subclass directly
* adds the coordinates to the provided data object.
*/
virtual int ReadPointsSimple(VTK_FILEPATH const std::string& fname, vtkDataObject* output) = 0;
/**
* A method that needs to be override by the subclass to provide
* data arrays. Note that the filename is passed to this
* method and should be used by the subclass. The subclass directly
* adds data arrays to the provided data object.
*/
virtual int ReadArraysSimple(VTK_FILEPATH const std::string& fname, vtkDataObject* output) = 0;
protected:
vtkSimpleReader();
~vtkSimpleReader() override;
int CurrentFileIndex;
bool HasTemporalMetaData;
private:
vtkSimpleReader(const vtkSimpleReader&) = delete;
void operator=(const vtkSimpleReader&) = delete;
vtkSimpleReaderInternal* Internal;
};
VTK_ABI_NAMESPACE_END
#endif
|
