VTK  9.1.0
vtkPNrrdReader.h
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1// -*- c++ -*-
2/*=========================================================================
3
4 Program: Visualization Toolkit
5 Module: vtkPNrrdReader.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
40#ifndef vtkPNrrdReader_h
41#define vtkPNrrdReader_h
42
43#include "vtkIOMPIImageModule.h" // For export macro
44#include "vtkNrrdReader.h"
45
46class vtkCharArray;
48class vtkMPIOpaqueFileHandle;
49
50class VTKIOMPIIMAGE_EXPORT vtkPNrrdReader : public vtkNrrdReader
51{
52public:
55 void PrintSelf(ostream& os, vtkIndent indent) override;
56
58
62 vtkGetObjectMacro(Controller, vtkMultiProcessController);
65
66protected:
68 ~vtkPNrrdReader() override;
69
70 int ReadHeader() override;
71 int ReadHeader(vtkCharArray* headerBuffer) override;
72
77
83 virtual void PartitionController(const int extent[6]);
84
89 virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle& file);
90
97 virtual void SetupFileView(vtkMPIOpaqueFileHandle& file, const int extent[6]);
98
105 virtual void ReadSlice(int slice, const int extent[6], void* buffer);
106
111 virtual void TransformData(vtkImageData* data);
112
114
121
123
125
126private:
127 vtkPNrrdReader(const vtkPNrrdReader&) = delete;
128 void operator=(const vtkPNrrdReader&) = delete;
129};
130
131#endif // vtkPNrrdReader_h
dynamic, self-adjusting array of char
Definition: vtkCharArray.h:68
general representation of visualization data
topologically and geometrically regular array of data
Definition: vtkImageData.h:157
a simple class to control print indentation
Definition: vtkIndent.h:113
Store vtkAlgorithm input/output information.
Multiprocessing communication superclass.
Read nrrd files file system.
Definition: vtkNrrdReader.h:45
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.