vtkCosmoReader Class Reference

#include <vtkCosmoReader.h>

Inheritance diagram for vtkCosmoReader:

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Collaboration diagram for vtkCosmoReader:

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List of all members.

Detailed Description

Read a binary cosmology data file.

vtkCosmoReader creates a vtkUnstructuredGrid from a binary cosmology file. The file contains fields for: x_position, x_velocity (float) y_position, y_velocity (float) z-position, z_velocity (float) mass (float) identification tag (integer)

If the file contains particle information x,y,z is the location of the particle in simulation space with a velocity vector and a mass which will be the same for all particles.

If the file contains halo information x,y,z is the location of the particle which is the centroid of all particles in the halo and the mass is the collective mass of the halo. In order to find the number of particles in a halo, take the mass of a single particle and divide it into the mass of a halo.

The stride variable will read every nth particle into the unstructured grid to get a subsampling. It has been noted that this is not the best thing to do for subsampling since particle points are generated in stripes. A better thing to do would be to take a random sampling.

Thanks:: Patricia Fasel (pfk@lanl.gov), Lee Ankeny (laa@lanl.gov) and Jim Ahrens (ahrens@lanl.gov) Los Alamos National Laboratory

Definition at line 102 of file vtkCosmoReader.h.


Public Types
typedef vtkUnstructuredGridAlgorithm	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	SetStride (int)
virtual int	GetStride ()
virtual void	SetBoxSize (double)
virtual double	GetBoxSize ()
void	ComputeDefaultRange ()

virtual void	SetFileName (const char *)
virtual char *	GetFileName ()

virtual int	GetNumberOfNodes ()

virtual int	GetNumberOfVariables ()

vtkUnstructuredGrid *	GetOutput ()
vtkUnstructuredGrid *	GetOutput (int index)

void	SetByteOrderToBigEndian ()
void	SetByteOrderToLittleEndian ()
virtual void	SetByteOrder (int)
virtual int	GetByteOrder ()

virtual void	SetPositionRange (int, int)
void	SetPositionRange (int[2])
virtual int *	GetPositionRange ()
virtual void	GetPositionRange (int &, int &)
virtual void	GetPositionRange (int[2])

int	GetNumberOfPointArrays ()
const char *	GetPointArrayName (int index)
int	GetPointArrayStatus (const char *name)
void	SetPointArrayStatus (const char *name, int status)
void	DisableAllPointArrays ()
void	EnableAllPointArrays ()

virtual void	SetMakeCells (int)
virtual int	GetMakeCells ()
Static Public Member Functions
static vtkCosmoReader *	New ()
static int	IsTypeOf (const char *type)
static vtkCosmoReader *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkCosmoReader ()
	~vtkCosmoReader ()
int	RequestInformation (vtkInformation , vtkInformationVector , vtkInformationVector )
int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )
Protected Attributes
char *	FileName
ifstream *	FileStream
int	TotalRank
int	Rank
vtkIdType	NumberOfNodes
int	NumberOfVariables
int	ByteOrder
int	Stride
int	PositionRange [2]
double	BoxSize
vtkDataArraySelection *	PointDataArraySelection
vtkStdString *	VariableName
vtkIdType *	ComponentNumber
int	MakeCells

Member Typedef Documentation

typedef vtkUnstructuredGridAlgorithm vtkCosmoReader::Superclass

Reimplemented from vtkUnstructuredGridAlgorithm.

Definition at line 106 of file vtkCosmoReader.h.

Constructor & Destructor Documentation

vtkCosmoReader::vtkCosmoReader ( ) [protected]

vtkCosmoReader::~vtkCosmoReader ( ) [protected]

Member Function Documentation

static vtkCosmoReader* vtkCosmoReader::New ( ) [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkUnstructuredGridAlgorithm.

virtual const char* vtkCosmoReader::GetClassName ( ) [virtual]

Reimplemented from vtkUnstructuredGridAlgorithm.

static int vtkCosmoReader::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkUnstructuredGridAlgorithm.

virtual int vtkCosmoReader::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkUnstructuredGridAlgorithm.

static vtkCosmoReader* vtkCosmoReader::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkUnstructuredGridAlgorithm.

void vtkCosmoReader::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)			`[virtual]`

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkUnstructuredGridAlgorithm.

virtual void vtkCosmoReader::SetFileName ( const char * ) [virtual]

Specify the name of the cosmology particle binary file to read

virtual char* vtkCosmoReader::GetFileName ( ) [virtual]

Specify the name of the cosmology particle binary file to read

virtual int vtkCosmoReader::GetNumberOfNodes ( ) [virtual]

Get the number of particles

virtual int vtkCosmoReader::GetNumberOfVariables ( ) [virtual]

Get the number of data variables at the cell centers

vtkUnstructuredGrid* vtkCosmoReader::GetOutput ( )

Get the reader's output

Reimplemented from vtkUnstructuredGridAlgorithm.

vtkUnstructuredGrid* vtkCosmoReader::GetOutput ( int index )

Get the reader's output

Reimplemented from vtkUnstructuredGridAlgorithm.

void vtkCosmoReader::SetByteOrderToBigEndian ( )

Set/Get the endian-ness of the binary file

void vtkCosmoReader::SetByteOrderToLittleEndian ( )

Set/Get the endian-ness of the binary file

virtual void vtkCosmoReader::SetByteOrder ( int ) [virtual]

Set/Get the endian-ness of the binary file

virtual int vtkCosmoReader::GetByteOrder ( ) [virtual]

Set/Get the endian-ness of the binary file

virtual void vtkCosmoReader::SetStride ( int ) [virtual]

virtual int vtkCosmoReader::GetStride ( ) [virtual]

virtual void vtkCosmoReader::SetBoxSize ( double ) [virtual]

virtual double vtkCosmoReader::GetBoxSize ( ) [virtual]

virtual void vtkCosmoReader::SetPositionRange	(	int	,
		int
	)			`[virtual]`

Set/Get the range of indices of interest

void vtkCosmoReader::SetPositionRange ( int [2] )

Set/Get the range of indices of interest

virtual int* vtkCosmoReader::GetPositionRange ( ) [virtual]

Set/Get the range of indices of interest

virtual void vtkCosmoReader::GetPositionRange	(	int &	,
		int &
	)			`[virtual]`

Set/Get the range of indices of interest

virtual void vtkCosmoReader::GetPositionRange ( int [2] ) [virtual]

Set/Get the range of indices of interest

void vtkCosmoReader::ComputeDefaultRange ( )

Using the file size determine how many data records exist

int vtkCosmoReader::GetNumberOfPointArrays ( )