vtkWindowLevelLookupTable Class Reference

#include <vtkWindowLevelLookupTable.h>

Inheritance diagram for vtkWindowLevelLookupTable:

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Collaboration diagram for vtkWindowLevelLookupTable:

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List of all members.

Detailed Description

map scalar values into colors or colors to scalars; generate color table

vtkWindowLevelLookupTable is an object that is used by mapper objects to map scalar values into rgba (red-green-blue-alpha transparency) color specification, or rgba into scalar values. The color table can be created by direct insertion of color values, or by specifying a window and level. Window / Level is used in medical imaging to specify a linear greyscale ramp. The Level is the center of the ramp. The Window is the width of the ramp.

Warning:: vtkWindowLevelLookupTable is a reference counted object. Therefore, you should always use operator "new" to construct new objects. This procedure will avoid memory problems (see text).

See also:: vtkLogLookupTable

Definition at line 40 of file vtkWindowLevelLookupTable.h.


Public Types
typedef vtkLookupTable	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	Build ()

void	SetWindow (double window)
virtual double	GetWindow ()

void	SetLevel (double level)
virtual double	GetLevel ()

void	SetInverseVideo (int iv)
virtual int	GetInverseVideo ()
virtual void	InverseVideoOn ()
virtual void	InverseVideoOff ()

virtual void	SetMinimumTableValue (double, double, double, double)
virtual void	SetMinimumTableValue (double[4])
virtual double *	GetMinimumTableValue ()
virtual void	GetMinimumTableValue (double &, double &, double &, double &)
virtual void	GetMinimumTableValue (double[4])

virtual void	SetMaximumTableValue (double, double, double, double)
virtual void	SetMaximumTableValue (double[4])
virtual double *	GetMaximumTableValue ()
virtual void	GetMaximumTableValue (double &, double &, double &, double &)
virtual void	GetMaximumTableValue (double[4])

void	SetMinimumColor (int r, int g, int b, int a)
void	SetMinimumColor (const unsigned char rgba[4])
void	GetMinimumColor (unsigned char rgba[4])
unsigned char *	GetMinimumColor ()

void	SetMaximumColor (int r, int g, int b, int a)
void	SetMaximumColor (const unsigned char rgba[4])
void	GetMaximumColor (unsigned char rgba[4])
unsigned char *	GetMaximumColor ()
Static Public Member Functions
static vtkWindowLevelLookupTable *	New ()
static int	IsTypeOf (const char *type)
static vtkWindowLevelLookupTable *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkWindowLevelLookupTable (int sze=256, int ext=256)
	~vtkWindowLevelLookupTable ()
Protected Attributes
double	Window
double	Level
int	InverseVideo
double	MaximumTableValue [4]
double	MinimumTableValue [4]

Member Typedef Documentation

typedef vtkLookupTable vtkWindowLevelLookupTable::Superclass

Reimplemented from vtkLookupTable.

Definition at line 44 of file vtkWindowLevelLookupTable.h.

Constructor & Destructor Documentation

vtkWindowLevelLookupTable::vtkWindowLevelLookupTable	(	int	sze = `256`,
		int	ext = `256`
	)			`[protected]`

vtkWindowLevelLookupTable::~vtkWindowLevelLookupTable ( ) [inline, protected]

Definition at line 116 of file vtkWindowLevelLookupTable.h.

Member Function Documentation

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

Construct with range=[0,1]; and hsv ranges set up for rainbow color table (from red to blue).

Reimplemented from vtkLookupTable.

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

Reimplemented from vtkLookupTable.

static int vtkWindowLevelLookupTable::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 vtkLookupTable.

virtual int vtkWindowLevelLookupTable::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 vtkLookupTable.

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

Reimplemented from vtkLookupTable.

void vtkWindowLevelLookupTable::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 vtkLookupTable.

void vtkWindowLevelLookupTable::Build ( ) [virtual]

Generate lookup table as a linear ramp between MinimumTableValue and MaximumTableValue.

Reimplemented from vtkLookupTable.

void vtkWindowLevelLookupTable::SetWindow ( double window ) [inline]

Set the window for the lookup table. The window is the difference between TableRange[0] and TableRange[1].

Definition at line 54 of file vtkWindowLevelLookupTable.h.

virtual double vtkWindowLevelLookupTable::GetWindow ( ) [virtual]

Set the window for the lookup table. The window is the difference between TableRange[0] and TableRange[1].

void vtkWindowLevelLookupTable::SetLevel ( double level ) [inline]

Set the Level for the lookup table. The level is the average of TableRange[0] and TableRange[1].

Definition at line 65 of file vtkWindowLevelLookupTable.h.

virtual double vtkWindowLevelLookupTable::GetLevel ( ) [virtual]

Set the Level for the lookup table. The level is the average of TableRange[0] and TableRange[1].

void vtkWindowLevelLookupTable::SetInverseVideo ( int iv )

Set inverse video on or off. You can achieve the same effect by switching the MinimumTableValue and the MaximumTableValue.

virtual int vtkWindowLevelLookupTable::GetInverseVideo ( ) [virtual]

Set inverse video on or off. You can achieve the same effect by switching the MinimumTableValue and the MaximumTableValue.

virtual void vtkWindowLevelLookupTable::InverseVideoOn ( ) [virtual]

Set inverse video on or off. You can achieve the same effect by switching the MinimumTableValue and the MaximumTableValue.

virtual void vtkWindowLevelLookupTable::InverseVideoOff ( ) [virtual]

Set inverse video on or off. You can achieve the same effect by switching the MinimumTableValue and the MaximumTableValue.

virtual void vtkWindowLevelLookupTable::SetMinimumTableValue	(	double	,
		double	,
		double	,
		double
	)			`[virtual]`

Set the minimum table value. All lookup table entries below the start of the ramp will be set to this color. After you change this value, you must re-build the lookup table.

virtual void vtkWindowLevelLookupTable::SetMinimumTableValue ( double [4] ) [virtual]

Set the minimum table value. All lookup table entries below the start of the ramp will be set to this color. After you change this value, you must re-build the lookup table.

virtual double* vtkWindowLevelLookupTable::GetMinimumTableValue ( ) [virtual]

Set the minimum table value. All lookup table entries below the start of the ramp will be set to this color. After you change this value, you must re-build the lookup table.

virtual void vtkWindowLevelLookupTable::GetMinimumTableValue	(	double &	,
		double &	,
		double &	,
		double &
	)			`[virtual]`

Set the minimum table value. All lookup table entries below the start of the ramp will be set to this color. After you change this value, you must re-build the lookup table.

virtual void vtkWindowLevelLookupTable::GetMinimumTableValue ( double [4] ) [virtual]

Set the minimum table value. All lookup table entries below the start of the ramp will be set to this color. After you change this value, you must re-build the lookup table.

virtual void vtkWindowLevelLookupTable::SetMaximumTableValue	(	double	,
		double	,
		double	,
		double
	)			`[virtual]`