VTK  9.1.0
vtkMPIImageReader.h
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1// -*- c++ -*-
2/*=========================================================================
3
4 Program: Visualization Toolkit
5 Module: vtkMPIImageReader.h
6
7 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
8 All rights reserved.
9 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
10
11 This software is distributed WITHOUT ANY WARRANTY; without even
12 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
13 PURPOSE. See the above copyright notice for more information.
14
15=========================================================================*/
16/*----------------------------------------------------------------------------
17 Copyright (c) Sandia Corporation
18 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
19----------------------------------------------------------------------------*/
20
48#ifndef vtkMPIImageReader_h
49#define vtkMPIImageReader_h
50
51#include "vtkIOMPIImageModule.h" // For export macro
52#include "vtkImageReader.h"
53
54class vtkMPIOpaqueFileHandle;
56
57class VTKIOMPIIMAGE_EXPORT vtkMPIImageReader : public vtkImageReader
58{
59public:
62 void PrintSelf(ostream& os, vtkIndent indent) override;
63
65
69 vtkGetObjectMacro(Controller, vtkMultiProcessController);
72
73protected:
76
78
83
89 virtual void PartitionController(const int extent[6]);
90
95 virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle& file);
96
103 virtual void SetupFileView(vtkMPIOpaqueFileHandle& file, const int extent[6]);
104
111 virtual void ReadSlice(int slice, const int extent[6], void* buffer);
112
117 virtual void TransformData(vtkImageData* data);
118
120
127
129
130private:
131 vtkMPIImageReader(const vtkMPIImageReader&) = delete;
132 void operator=(const vtkMPIImageReader&) = delete;
133};
134
135#endif // vtkMPIImageReader_h
general representation of visualization data
topologically and geometrically regular array of data
Definition: vtkImageData.h:157
Superclass of transformable binary file readers.
a simple class to control print indentation
Definition: vtkIndent.h:113
Store vtkAlgorithm input/output information.
vtkMPIImageReader provides the mechanism to read a brick of bytes (or shorts, or ints,...
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
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...
vtkMultiProcessController * Controller
void SetGroupedController(vtkMultiProcessController *)
A group of processes that are reading the same file (as determined by PartitionController.
void ExecuteDataWithInformation(vtkDataObject *data, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.
~vtkMPIImageReader() override
vtkMultiProcessController * GroupedController
A group of processes that are reading the same file (as determined by PartitionController.
int GetDataScalarTypeSize()
Returns the size, in bytes of the scalar data type (GetDataScalarType).
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 PartitionController(const int extent[6])
Break up the controller based on the files each process reads.
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,...
static vtkMPIImageReader * New()
virtual void SetController(vtkMultiProcessController *)
Get/set the multi process controller to use for coordinated reads.
virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle &file)
Get the header size of the given open file.
Multiprocessing communication superclass.