draw text labels on a tree map More...

#include <vtkLabeledTreeMapDataMapper.h>

Inheritance diagram for vtkLabeledTreeMapDataMapper:

Collaboration diagram for vtkLabeledTreeMapDataMapper:

Public Types
typedef vtkLabeledDataMapper	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkLabeledTreeMapDataMapper *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
virtual vtkTree *	GetInputTree ()
virtual void	SetRectanglesArrayName (const char *name)
virtual void	ReleaseGraphicsResources (vtkWindow *)

virtual void	RenderOpaqueGeometry (vtkViewport viewport, vtkActor2D actor)
virtual void	RenderOverlay (vtkViewport viewport, vtkActor2D actor)

virtual int	GetClipTextMode ()
virtual void	SetClipTextMode (int)

virtual int	GetChildMotion ()
virtual void	SetChildMotion (int)

virtual int	GetDynamicLevel ()
virtual void	SetDynamicLevel (int)

void	SetFontSizeRange (int maxSize, int minSize, int delta=4)
void	GetFontSizeRange (int range[3])

void	SetLevelRange (int startLevel, int endLevel)
void	GetLevelRange (int range[2])
Static Public Member Functions
static vtkLabeledTreeMapDataMapper *	New ()
static int	IsTypeOf (const char *type)
static vtkLabeledTreeMapDataMapper *	SafeDownCast (vtkObjectBase *o)
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkLabeledTreeMapDataMapper ()
	~vtkLabeledTreeMapDataMapper ()
void	LabelTree (vtkTree tree, vtkFloatArray boxInfo, vtkDataArray numericData, vtkStringArray stringData, int activeComp, int numComps)
void	GetVertexLabel (vtkIdType vertex, vtkDataArray numericData, vtkStringArray stringData, int activeComp, int numComps, char *string)
void	UpdateFontSizes ()
int	UpdateWindowInfo (vtkViewport *viewport)
int	GetStringSize (char *string, int level)
int	ConvertToDC (float origBoxInfo, float newBoxInfo)
int	AnalyseLabel (char string, int level, float blimitsDC, float textPosWC, vtkTextProperty *tprop)
int	ApplyMasks (int level, float flimits[4], float blimits[4])
Protected Attributes
vtkViewport *	CurrentViewPort
int *	FontHeights
int **	FontWidths
int	MaxFontLevel
int *	ChildrenCount
int	MaxTreeLevels
double	BoxTrans [2][2]
double	WindowLimits [2][2]
float(*	LabelMasks )[4]
vtkIdList *	VertexList
vtkPoints *	TextPoints
vtkCoordinate *	VCoord
int	ClipTextMode
int	ChildMotion
int	StartLevel
int	EndLevel
int	DynamicLevel
vtkTextProperty *	VerticalLabelProperty
vtkTextProperty **	HLabelProperties

Detailed Description

draw text labels on a tree map

vtkLabeledTreeMapDataMapper is a mapper that renders text on a tree map. A tree map is a vtkTree with an associated 4-tuple array used for storing the boundary rectangle for each vertex in the tree. The user must specify the array name used for storing the rectangles.

The mapper iterates through the tree and attempts and renders a label inside the vertex's rectangle as long as the following conditions hold:

The vertex level is within the range of levels specified for labeling.
The label can fully fit inside its box.
The label does not overlap an ancestor's label.

See also:
vtkLabeledDataMapper

Thanks:
Thanks to Patricia Crossno, Ken Moreland, Andrew Wilson and Brian Wylie from Sandia National Laboratories for their help in developing this class.

Definition at line 56 of file vtkLabeledTreeMapDataMapper.h.

Member Typedef Documentation

typedef vtkLabeledDataMapper vtkLabeledTreeMapDataMapper::Superclass

Reimplemented from vtkLabeledDataMapper.

Definition at line 60 of file vtkLabeledTreeMapDataMapper.h.

Constructor & Destructor Documentation

vtkLabeledTreeMapDataMapper::vtkLabeledTreeMapDataMapper ( ) [protected]

vtkLabeledTreeMapDataMapper::~vtkLabeledTreeMapDataMapper ( ) [protected]

Member Function Documentation

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

Instantiate object with %%-#6.3g label format. By default, point ids are labeled.

Reimplemented from vtkLabeledDataMapper.

static int vtkLabeledTreeMapDataMapper::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkLabeledDataMapper.

virtual int vtkLabeledTreeMapDataMapper::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkLabeledDataMapper.

static vtkLabeledTreeMapDataMapper* vtkLabeledTreeMapDataMapper::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkLabeledDataMapper.

virtual vtkObjectBase* vtkLabeledTreeMapDataMapper::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkLabeledDataMapper.

vtkLabeledTreeMapDataMapper* vtkLabeledTreeMapDataMapper::NewInstance ( ) const

Reimplemented from vtkLabeledDataMapper.

void vtkLabeledTreeMapDataMapper::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 vtkLabeledDataMapper.

virtual void vtkLabeledTreeMapDataMapper::RenderOpaqueGeometry	(	vtkViewport *	viewport,
		vtkActor2D *	actor
	)		`[virtual]`

Draw the text to the screen at each input point.

Reimplemented from vtkLabeledDataMapper.

virtual void vtkLabeledTreeMapDataMapper::RenderOverlay	(	vtkViewport *	viewport,
		vtkActor2D *	actor
	)		`[virtual]`

Draw the text to the screen at each input point.

Reimplemented from vtkLabeledDataMapper.

virtual vtkTree* vtkLabeledTreeMapDataMapper::GetInputTree ( ) [virtual]

The input to this filter.

virtual void vtkLabeledTreeMapDataMapper::SetRectanglesArrayName ( const char * name ) [virtual]

The name of the 4-tuple array used for

virtual int vtkLabeledTreeMapDataMapper::GetClipTextMode ( ) [virtual]

Indicates if the label can be displayed clipped by the Window mode = 0 - ok to clip labels 1 - auto center labels w/r to the area of the vertex's clipped region

virtual void vtkLabeledTreeMapDataMapper::SetClipTextMode ( int ) [virtual]

Indicates if the label can be displayed clipped by the Window mode = 0 - ok to clip labels 1 - auto center labels w/r to the area of the vertex's clipped region

virtual int vtkLabeledTreeMapDataMapper::GetChildMotion ( ) [virtual]

Indicates if the label can be moved by its ancestors

virtual void vtkLabeledTreeMapDataMapper::SetChildMotion ( int ) [virtual]

Indicates if the label can be moved by its ancestors

virtual int vtkLabeledTreeMapDataMapper::GetDynamicLevel ( ) [virtual]

Indicates at which level labeling should be dynamic

virtual void vtkLabeledTreeMapDataMapper::SetDynamicLevel ( int ) [virtual]

Indicates at which level labeling should be dynamic

virtual void vtkLabeledTreeMapDataMapper::ReleaseGraphicsResources ( vtkWindow * ) [virtual]

Release any graphics resources that are being consumed by this actor.

Reimplemented from vtkLabeledDataMapper.

void vtkLabeledTreeMapDataMapper::SetFontSizeRange	(	int	maxSize,
		int	minSize,
		int	delta = `4`
	)

The range of font sizes to use when rendering the labels.

void vtkLabeledTreeMapDataMapper::GetFontSizeRange ( int range[3] )

The range of font sizes to use when rendering the labels.

void vtkLabeledTreeMapDataMapper::SetLevelRange	(	int	startLevel,
		int	endLevel
	)

The range of levels to attempt to label. The level of a vertex is the length of the path to the root (the root has level 0).

void vtkLabeledTreeMapDataMapper::GetLevelRange ( int range[2] )

The range of levels to attempt to label. The level of a vertex is the length of the path to the root (the root has level 0).

void vtkLabeledTreeMapDataMapper::LabelTree	(	vtkTree *	tree,
		vtkFloatArray *	boxInfo,
		vtkDataArray *	numericData,
		vtkStringArray *	stringData,
		int	activeComp,
		int	numComps
	)		`[protected]`

void vtkLabeledTreeMapDataMapper::GetVertexLabel	(	vtkIdType	vertex,
		vtkDataArray *	numericData,
		vtkStringArray *	stringData,
		int	activeComp,
		int	numComps,
		char *	string
	)		`[protected]`