You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
153 lines
4.6 KiB
C++
153 lines
4.6 KiB
C++
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: vtkXMLDataReader.h
|
|
|
|
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.
|
|
|
|
=========================================================================*/
|
|
/**
|
|
* @class vtkXMLDataReader
|
|
* @brief Superclass for VTK XML file readers.
|
|
*
|
|
* vtkXMLDataReader provides functionality common to all file readers for
|
|
* <a href="http://www.vtk.org/Wiki/VTK_XML_Formats">VTK XML formats</a>.
|
|
* Concrete subclasses call upon this functionality when needed.
|
|
*
|
|
* @sa
|
|
* vtkXMLPDataReader
|
|
*/
|
|
|
|
#ifndef vtkXMLDataReader_h
|
|
#define vtkXMLDataReader_h
|
|
|
|
#include "vtkIOXMLModule.h" // For export macro
|
|
#include "vtkXMLReader.h"
|
|
|
|
class VTKIOXML_EXPORT vtkXMLDataReader : public vtkXMLReader
|
|
{
|
|
public:
|
|
enum FieldType
|
|
{
|
|
POINT_DATA,
|
|
CELL_DATA,
|
|
OTHER
|
|
};
|
|
|
|
|
|
vtkTypeMacro(vtkXMLDataReader,vtkXMLReader);
|
|
void PrintSelf(ostream& os, vtkIndent indent);
|
|
|
|
/**
|
|
* Get the number of points in the output.
|
|
*/
|
|
virtual vtkIdType GetNumberOfPoints()=0;
|
|
|
|
/**
|
|
* Get the number of cells in the output.
|
|
*/
|
|
virtual vtkIdType GetNumberOfCells()=0;
|
|
|
|
// For the specified port, copy the information this reader sets up in
|
|
// SetupOutputInformation to outInfo
|
|
virtual void CopyOutputInformation(vtkInformation *outInfo, int port);
|
|
|
|
protected:
|
|
vtkXMLDataReader();
|
|
~vtkXMLDataReader();
|
|
|
|
// Add functionality to methods from superclass.
|
|
virtual void CreateXMLParser();
|
|
virtual void DestroyXMLParser();
|
|
virtual void SetupOutputInformation(vtkInformation *outInfo);
|
|
|
|
int ReadPrimaryElement(vtkXMLDataElement* ePrimary);
|
|
void SetupOutputData();
|
|
|
|
// Setup the reader for a given number of pieces.
|
|
virtual void SetupPieces(int numPieces);
|
|
virtual void DestroyPieces();
|
|
|
|
// Read information from the file for the given piece.
|
|
int ReadPiece(vtkXMLDataElement* ePiece, int piece);
|
|
virtual int ReadPiece(vtkXMLDataElement* ePiece);
|
|
|
|
// Read data from the file for the given piece.
|
|
int ReadPieceData(int piece);
|
|
virtual int ReadPieceData();
|
|
|
|
virtual void ReadXMLData();
|
|
|
|
// Read a data array whose tuples coorrespond to points or cells.
|
|
virtual int ReadArrayForPoints(vtkXMLDataElement* da,
|
|
vtkAbstractArray* outArray);
|
|
virtual int ReadArrayForCells(vtkXMLDataElement* da,
|
|
vtkAbstractArray* outArray);
|
|
|
|
// Read an Array values starting at the given index and up to numValues.
|
|
// This method assumes that the array is of correct size to
|
|
// accommodate all numValues values. arrayIndex is the value index at which the read
|
|
// values will be put in the array.
|
|
int ReadArrayValues(
|
|
vtkXMLDataElement* da, vtkIdType arrayIndex, vtkAbstractArray* array,
|
|
vtkIdType startIndex, vtkIdType numValues, FieldType type = OTHER);
|
|
|
|
|
|
|
|
// Callback registered with the DataProgressObserver.
|
|
static void DataProgressCallbackFunction(vtkObject*, unsigned long, void*,
|
|
void*);
|
|
// Progress callback from XMLParser.
|
|
virtual void DataProgressCallback();
|
|
|
|
// The number of Pieces of data found in the file.
|
|
int NumberOfPieces;
|
|
|
|
// The PointData and CellData element representations for each piece.
|
|
vtkXMLDataElement** PointDataElements;
|
|
vtkXMLDataElement** CellDataElements;
|
|
|
|
// The piece currently being read.
|
|
int Piece;
|
|
|
|
// The number of point/cell data arrays in the output. Valid after
|
|
// SetupOutputData has been called.
|
|
int NumberOfPointArrays;
|
|
int NumberOfCellArrays;
|
|
|
|
// Flag for whether DataProgressCallback should actually update
|
|
// progress.
|
|
int InReadData;
|
|
|
|
// The observer to report progress from reading data from XMLParser.
|
|
vtkCallbackCommand* DataProgressObserver;
|
|
|
|
// Specify the last time step read, useful to know if we need to rearead data
|
|
// //PointData
|
|
int *PointDataTimeStep;
|
|
vtkTypeInt64 *PointDataOffset;
|
|
int PointDataNeedToReadTimeStep(vtkXMLDataElement *eNested);
|
|
|
|
//CellData
|
|
int *CellDataTimeStep;
|
|
vtkTypeInt64 *CellDataOffset;
|
|
int CellDataNeedToReadTimeStep(vtkXMLDataElement *eNested);
|
|
|
|
private:
|
|
vtkXMLDataReader(const vtkXMLDataReader&) VTK_DELETE_FUNCTION;
|
|
void operator=(const vtkXMLDataReader&) VTK_DELETE_FUNCTION;
|
|
|
|
void ConvertGhostLevelsToGhostType(
|
|
FieldType type, vtkAbstractArray* data, vtkIdType startIndex,
|
|
vtkIdType numValues);
|
|
|
|
};
|
|
|
|
#endif
|