VTK  9.5.20251008
vtkPNrrdReader.h
Go to the documentation of this file.
1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
3// SPDX-License-Identifier: BSD-3-Clause
4
28#ifndef vtkPNrrdReader_h
29#define vtkPNrrdReader_h
30
31#include "vtkIOMPIImageModule.h" // For export macro
32#include "vtkNrrdReader.h"
33
34VTK_ABI_NAMESPACE_BEGIN
35class vtkCharArray;
37class vtkMPIOpaqueFileHandle;
38
39class VTKIOMPIIMAGE_EXPORT vtkPNrrdReader : public vtkNrrdReader
40{
41public:
44 void PrintSelf(ostream& os, vtkIndent indent) override;
45
47
51 vtkGetObjectMacro(Controller, vtkMultiProcessController);
54
55protected:
57 ~vtkPNrrdReader() override;
58
59 int ReadHeader() override;
60 int ReadHeader(vtkCharArray* headerBuffer) override;
61
66
72 virtual void PartitionController(const int extent[6]);
73
78 virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle& file);
79
86 virtual void SetupFileView(vtkMPIOpaqueFileHandle& file, const int extent[6]);
87
94 virtual void ReadSlice(int slice, const int extent[6], void* buffer);
95
100 virtual void TransformData(vtkImageData* data);
101
103
110
112
114
115private:
116 vtkPNrrdReader(const vtkPNrrdReader&) = delete;
117 void operator=(const vtkPNrrdReader&) = delete;
118};
119
120VTK_ABI_NAMESPACE_END
121#endif // vtkPNrrdReader_h
dynamic, self-adjusting array of char
general representation of visualization data
topologically and geometrically regular array of data
a simple class to control print indentation
Definition vtkIndent.h:108
Store vtkAlgorithm input/output information.
Multiprocessing communication superclass.
Read nrrd files file system.
Read nrrd files efficiently from parallel file systems (and reasonably well elsewhere).
virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle &file)
Get the header size of the given open file.
vtkMultiProcessController * Controller
int ReadHeader(vtkCharArray *headerBuffer) override
int ReadHeader() override
virtual void ReadSlice(int slice, const int extent[6], void *buffer)
Given a slice of the data, open the appropriate file, read the data into given buffer,...
~vtkPNrrdReader() override
virtual void PartitionController(const int extent[6])
Break up the controller based on the files each process reads.
virtual void SetupFileView(vtkMPIOpaqueFileHandle &file, const int extent[6])
Set up a "view" on the open file that will allow you to read the 2D or 3D subarray from the file in o...
virtual void TransformData(vtkImageData *data)
Transform the data from the order read from a file to the order to place in the output data (as defin...
int GetDataScalarTypeSize()
Returns the size, in bytes of the scalar data type (GetDataScalarType).
static vtkPNrrdReader * New()
void SetGroupedController(vtkMultiProcessController *)
A group of processes that are reading the same file (as determined by PartitionController.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkMultiProcessController * GroupedController
A group of processes that are reading the same file (as determined by PartitionController.
virtual void SetController(vtkMultiProcessController *)
Get/set the multi process controller to use for coordinated reads.
void ExecuteDataWithInformation(vtkDataObject *data, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.