vtkLabeledContourPolyDataItem Class Reference

Filter that translate a vtkPolyData 2D mesh into vtkContextItems. More...

#include <vtkLabeledContourPolyDataItem.h>

Inheritance diagram for vtkLabeledContourPolyDataItem:

Collaboration diagram for vtkLabeledContourPolyDataItem:

Public Types
typedef vtkPolyDataItem	Superclass
Public Types inherited from vtkPolyDataItem
typedef vtkContextItem	Superclass
Public Types inherited from vtkContextItem
typedef vtkAbstractContextItem	Superclass
Public Types inherited from vtkAbstractContextItem
typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...
vtkLabeledContourPolyDataItem *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...
bool	Paint (vtkContext2D *painter) override
	Paint event for the item. More...
virtual void	SetTextProperty (vtkTextProperty *tprop)
	The text property used to label the lines. More...
virtual void	SetTextProperties (vtkTextPropertyCollection *coll)
	The text properties used to label the lines. More...
virtual vtkTextPropertyCollection *	GetTextProperties ()
	The text properties used to label the lines. More...
virtual vtkDoubleArray *	GetTextPropertyMapping ()
	Values in this array correspond to vtkTextProperty objects in the TextProperties collection. More...
virtual void	SetTextPropertyMapping (vtkDoubleArray *mapping)
	Values in this array correspond to vtkTextProperty objects in the TextProperties collection. More...
virtual void	SetLabelVisibility (bool)
	If true, labels will be placed and drawn during rendering. More...
virtual bool	GetLabelVisibility ()
	If true, labels will be placed and drawn during rendering. More...
virtual void	LabelVisibilityOn ()
	If true, labels will be placed and drawn during rendering. More...
virtual void	LabelVisibilityOff ()
	If true, labels will be placed and drawn during rendering. More...
virtual void	SetSkipDistance (double)
	Ensure that there are at least SkipDistance pixels between labels. More...
virtual double	GetSkipDistance ()
	Ensure that there are at least SkipDistance pixels between labels. More...
Public Member Functions inherited from vtkPolyDataItem
vtkPolyDataItem *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...
bool	Paint (vtkContext2D *painter) override
	Paint event for the item. More...
void	SetPolyData (vtkPolyData *polyData)
	Set the PolyData of the item. More...
void	SetMappedColors (vtkUnsignedCharArray *colors)
	Set mapped colors. More...
virtual vtkPolyData *	GetPolyData ()
	Get the image of the item. More...
virtual void	SetPosition (float, float)
	Set the position of the bottom corner of the image. More...
void	SetPosition (float[2])
virtual void	SetScalarMode (int)
	Set the data scalar mode. More...
Public Member Functions inherited from vtkContextItem
vtkContextItem *	NewInstance () const
virtual double	GetOpacity ()
	Get the opacity of the item. More...
virtual void	SetOpacity (double)
	Set the opacity of the item. More...
Public Member Functions inherited from vtkAbstractContextItem
vtkAbstractContextItem *	NewInstance () const
virtual void	Update ()
	Perform any updates to the item that may be necessary before rendering. More...
virtual bool	PaintChildren (vtkContext2D *painter)
	Paint the children of the item, should be called whenever the children need to be rendered. More...
virtual void	ReleaseGraphicsResources ()
	Release graphics resources hold by the item. More...
vtkIdType	AddItem (vtkAbstractContextItem *item)
	Add child items to this item. More...
bool	RemoveItem (vtkAbstractContextItem *item)
	Remove child item from this item. More...
bool	RemoveItem (vtkIdType index)
	Remove child item from this item. More...
vtkAbstractContextItem *	GetItem (vtkIdType index)
	Get the item at the specified index. More...
vtkIdType	GetItemIndex (vtkAbstractContextItem *item)
	Get the index of the specified item in itemIndex. More...
vtkIdType	GetNumberOfItems ()
	Get the number of child items. More...
void	ClearItems ()
	Remove all child items from this item. More...
vtkIdType	Raise (vtkIdType index)
	Raises the child to the top of the item's stack. More...
virtual vtkIdType	StackAbove (vtkIdType index, vtkIdType under)
	Raises the child above the under sibling. More...
vtkIdType	Lower (vtkIdType index)
	Lowers the child to the bottom of the item's stack. More...
virtual vtkIdType	StackUnder (vtkIdType child, vtkIdType above)
	Lowers the child under the above sibling. More...
virtual bool	Hit (const vtkContextMouseEvent &mouse)
	Return true if the supplied x, y coordinate is inside the item. More...
virtual vtkAbstractContextItem *	GetPickedItem (const vtkContextMouseEvent &mouse)
	Return the item under the mouse. More...
virtual bool	MouseEnterEvent (const vtkContextMouseEvent &mouse)
	Mouse enter event. More...
virtual bool	MouseMoveEvent (const vtkContextMouseEvent &mouse)
	Mouse move event. More...
virtual bool	MouseLeaveEvent (const vtkContextMouseEvent &mouse)
	Mouse leave event. More...
virtual bool	MouseButtonPressEvent (const vtkContextMouseEvent &mouse)
	Mouse button down event Return true if the item holds the event, false if the event can be propagated to other items. More...
virtual bool	MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse)
	Mouse button release event. More...
virtual bool	MouseDoubleClickEvent (const vtkContextMouseEvent &mouse)
	Mouse button double click event. More...
virtual bool	MouseWheelEvent (const vtkContextMouseEvent &mouse, int delta)
	Mouse wheel event, positive delta indicates forward movement of the wheel. More...
virtual bool	KeyPressEvent (const vtkContextKeyEvent &key)
	Key press event. More...
virtual bool	KeyReleaseEvent (const vtkContextKeyEvent &key)
	Key release event. More...
virtual void	SetScene (vtkContextScene *scene)
	Set the vtkContextScene for the item, always set for an item in a scene. More...
vtkContextScene *	GetScene ()
	Get the vtkContextScene for the item, always set for an item in a scene. More...
virtual void	SetParent (vtkAbstractContextItem *parent)
	Set the parent item. More...
vtkAbstractContextItem *	GetParent ()
	Get the parent item. More...
virtual vtkVector2f	MapToParent (const vtkVector2f &point)
	Maps the point to the parent coordinate system. More...
virtual vtkVector2f	MapFromParent (const vtkVector2f &point)
	Maps the point from the parent coordinate system. More...
virtual vtkVector2f	MapToScene (const vtkVector2f &point)
	Maps the point to the scene coordinate system. More...
virtual vtkVector2f	MapFromScene (const vtkVector2f &point)
	Maps the point from the scene coordinate system. More...
virtual bool	GetVisible ()
	Get the visibility of the item (should it be drawn). More...
virtual void	SetVisible (bool)
	Set the visibility of the item (should it be drawn). More...
virtual bool	GetInteractive ()
	Get if the item is interactive (should respond to mouse events). More...
virtual void	SetInteractive (bool)
	Set if the item is interactive (should respond to mouse events). More...
Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)
virtual void	DebugOn ()
	Turn debugging output on. More...
virtual void	DebugOff ()
	Turn debugging output off. More...
bool	GetDebug ()
	Get the value of the debug flag. More...
void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...
virtual void	Modified ()
	Update the modification time for this object. More...
virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
vtkTypeBool	HasObserver (unsigned long event)
vtkTypeBool	HasObserver (const char *event)
int	InvokeEvent (unsigned long event)
int	InvokeEvent (const char *event)
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
void	RemoveObservers (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
vtkTypeBool	HasObserver (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...
int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...
int	InvokeEvent (const char *event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...
virtual void	Delete ()
	Delete a VTK object. More...
virtual void	FastDelete ()
	Delete a reference to this object. More...
void	InitializeObjectBase ()
void	Print (ostream &os)
	Print an object to an ostream. More...
virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...
virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...
int	GetReferenceCount ()
	Return the current reference count of this object. More...
void	SetReferenceCount (int)
	Sets the reference count. More...
void	PrintRevisions (ostream &)
	Legacy. More...
virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)
static vtkLabeledContourPolyDataItem *	SafeDownCast (vtkObjectBase *o)
static vtkLabeledContourPolyDataItem *	New ()
Static Public Member Functions inherited from vtkPolyDataItem
static vtkTypeBool	IsTypeOf (const char *type)
static vtkPolyDataItem *	SafeDownCast (vtkObjectBase *o)
static vtkPolyDataItem *	New ()
Static Public Member Functions inherited from vtkContextItem
static vtkTypeBool	IsTypeOf (const char *type)
static vtkContextItem *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkAbstractContextItem
static vtkTypeBool	IsTypeOf (const char *type)
static vtkAbstractContextItem *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...
static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...
Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkLabeledContourPolyDataItem ()
	~vtkLabeledContourPolyDataItem () override
virtual void	ComputeBounds ()
void	Reset ()
bool	CheckInputs ()
bool	CheckRebuild ()
bool	PrepareRender ()
bool	PlaceLabels ()
bool	ResolveLabels ()
virtual bool	CreateLabels ()
bool	RenderBackgrounds (vtkContext2D *painter)
bool	RenderLabels (vtkContext2D *painter)
bool	AllocateTextActors (vtkIdType num)
bool	FreeTextActors ()
Protected Member Functions inherited from vtkPolyDataItem
	vtkPolyDataItem ()
	~vtkPolyDataItem () override
Protected Member Functions inherited from vtkContextItem
	vtkContextItem ()
	~vtkContextItem () override
Protected Member Functions inherited from vtkAbstractContextItem
	vtkAbstractContextItem ()
	~vtkAbstractContextItem () override
Protected Member Functions inherited from vtkObject
	vtkObject ()
	~vtkObject () override
void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...
void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events. More...
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	CollectRevisions (ostream &)
virtual void	ReportReferences (vtkGarbageCollector *)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
double	SkipDistance
bool	LabelVisibility
vtkIdType	NumberOfTextActors
vtkIdType	NumberOfUsedTextActors
vtkTextActor3D **	TextActors
LabelHelper **	LabelHelpers
vtkSmartPointer< vtkTextPropertyCollection >	TextProperties
vtkSmartPointer< vtkDoubleArray >	TextPropertyMapping
vtkTimeStamp	LabelBuildTime
Protected Attributes inherited from vtkPolyDataItem
DrawHintsHelper *	HintHelper
float	Position [2]
vtkPolyData *	PolyData
vtkUnsignedCharArray *	MappedColors
int	ScalarMode
Protected Attributes inherited from vtkContextItem
double	Opacity
Protected Attributes inherited from vtkAbstractContextItem
vtkContextScene *	Scene
	Point to the scene the item is on - can be null. More...
vtkAbstractContextItem *	Parent
	Point to the parent item - can be null. More...
vtkContextScenePrivate *	Children
	This structure provides a list of children, along with convenience functions to paint the children etc. More...
bool	Visible
	Store the visibility of the item (default is true). More...
bool	Interactive
	Store whether the item should respond to interactions (default is true). More...
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Detailed Description

Filter that translate a vtkPolyData 2D mesh into vtkContextItems.

Warning

The input vtkPolyData should be a 2D mesh.

Definition at line 41 of file vtkLabeledContourPolyDataItem.h.

Member Typedef Documentation

typedef vtkPolyDataItem vtkLabeledContourPolyDataItem::Superclass

Definition at line 44 of file vtkLabeledContourPolyDataItem.h.

Constructor & Destructor Documentation

vtkLabeledContourPolyDataItem::vtkLabeledContourPolyDataItem ( )

protected

vtkLabeledContourPolyDataItem::~vtkLabeledContourPolyDataItem ( )

overrideprotected

Member Function Documentation

static vtkTypeBool vtkLabeledContourPolyDataItem::IsTypeOf ( const char *  type )

static

virtual vtkTypeBool vtkLabeledContourPolyDataItem::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 vtkPolyDataItem.

static vtkLabeledContourPolyDataItem* vtkLabeledContourPolyDataItem::SafeDownCast ( vtkObjectBase *  o )

static

virtual vtkObjectBase* vtkLabeledContourPolyDataItem::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPolyDataItem.

vtkLabeledContourPolyDataItem* vtkLabeledContourPolyDataItem::NewInstance

(

)

const

void vtkLabeledContourPolyDataItem::PrintSelf ( ostream &  os, vtkIndent  indent  )

overridevirtual

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 vtkContextItem.

static vtkLabeledContourPolyDataItem* vtkLabeledContourPolyDataItem::New ( )

static

bool vtkLabeledContourPolyDataItem::Paint ( vtkContext2D *  painter )

overridevirtual

Paint event for the item.

Reimplemented from vtkAbstractContextItem.

virtual void vtkLabeledContourPolyDataItem::SetTextProperty ( vtkTextProperty *  tprop )

virtual

The text property used to label the lines.

Note that both vertical and horizontal justifications will be reset to "Centered" prior to rendering.

Note

This is a convenience method that clears TextProperties and inserts the argument as the only property in the collection.

See also

SetTextProperties

virtual void vtkLabeledContourPolyDataItem::SetTextProperties ( vtkTextPropertyCollection *  coll )

virtual

The text properties used to label the lines.

Note that both vertical and horizontal justifications will be reset to "Centered" prior to rendering.

If the TextPropertyMapping array exists, then it is used to identify which text property to use for each label as follows: If the scalar value of a line is found in the mapping, the index of the value in mapping is used to lookup the text property in the collection. If there are more mapping values than properties, the properties are looped through until the mapping is exhausted.

Lines with scalar values missing from the mapping are assigned text properties in a round-robin fashion starting from the beginning of the collection, repeating from the start of the collection as necessary.

See also

SetTextProperty

SetTextPropertyMapping

virtual vtkTextPropertyCollection* vtkLabeledContourPolyDataItem::GetTextProperties ( )

virtual

The text properties used to label the lines.

Note that both vertical and horizontal justifications will be reset to "Centered" prior to rendering.

If the TextPropertyMapping array exists, then it is used to identify which text property to use for each label as follows: If the scalar value of a line is found in the mapping, the index of the value in mapping is used to lookup the text property in the collection. If there are more mapping values than properties, the properties are looped through until the mapping is exhausted.

Lines with scalar values missing from the mapping are assigned text properties in a round-robin fashion starting from the beginning of the collection, repeating from the start of the collection as necessary.

See also

SetTextProperty

SetTextPropertyMapping

virtual vtkDoubleArray* vtkLabeledContourPolyDataItem::GetTextPropertyMapping ( )

virtual

Values in this array correspond to vtkTextProperty objects in the TextProperties collection.

If a contour line's scalar value exists in this array, the corresponding text property is used for the label. See SetTextProperties for more information.

virtual void vtkLabeledContourPolyDataItem::SetTextPropertyMapping ( vtkDoubleArray *  mapping )

virtual

Values in this array correspond to vtkTextProperty objects in the TextProperties collection.

If a contour line's scalar value exists in this array, the corresponding text property is used for the label. See SetTextProperties for more information.

virtual void vtkLabeledContourPolyDataItem::SetLabelVisibility ( bool  )

virtual

If true, labels will be placed and drawn during rendering.

Otherwise, only the mapper returned by GetPolyDataMapper() will be rendered. The default is to draw labels.

virtual bool vtkLabeledContourPolyDataItem::GetLabelVisibility ( )

virtual

If true, labels will be placed and drawn during rendering.

Otherwise, only the mapper returned by GetPolyDataMapper() will be rendered. The default is to draw labels.

virtual void vtkLabeledContourPolyDataItem::LabelVisibilityOn ( )

virtual

If true, labels will be placed and drawn during rendering.

Otherwise, only the mapper returned by GetPolyDataMapper() will be rendered. The default is to draw labels.

virtual void vtkLabeledContourPolyDataItem::LabelVisibilityOff ( )

virtual

If true, labels will be placed and drawn during rendering.

Otherwise, only the mapper returned by GetPolyDataMapper() will be rendered. The default is to draw labels.

virtual void vtkLabeledContourPolyDataItem::SetSkipDistance ( double  )

virtual

Ensure that there are at least SkipDistance pixels between labels.

This is only enforced on labels along the same line. The default is 0.

virtual double vtkLabeledContourPolyDataItem::GetSkipDistance ( )

virtual

Ensure that there are at least SkipDistance pixels between labels.

This is only enforced on labels along the same line. The default is 0.

virtual void vtkLabeledContourPolyDataItem::ComputeBounds ( )

protectedvirtual

void vtkLabeledContourPolyDataItem::Reset ( )

protected

bool vtkLabeledContourPolyDataItem::CheckInputs ( )

protected

bool vtkLabeledContourPolyDataItem::CheckRebuild ( )

protected

bool vtkLabeledContourPolyDataItem::PrepareRender ( )

protected

bool vtkLabeledContourPolyDataItem::PlaceLabels ( )

protected

bool vtkLabeledContourPolyDataItem::ResolveLabels ( )

protected

virtual bool vtkLabeledContourPolyDataItem::CreateLabels ( )

protectedvirtual

bool vtkLabeledContourPolyDataItem::RenderBackgrounds ( vtkContext2D *  painter )

protected

bool vtkLabeledContourPolyDataItem::RenderLabels ( vtkContext2D *  painter )

protected

bool vtkLabeledContourPolyDataItem::AllocateTextActors ( vtkIdType  num )

protected

bool vtkLabeledContourPolyDataItem::FreeTextActors ( )

protected

Member Data Documentation

double vtkLabeledContourPolyDataItem::SkipDistance

protected

Definition at line 136 of file vtkLabeledContourPolyDataItem.h.

bool vtkLabeledContourPolyDataItem::LabelVisibility

protected

Definition at line 138 of file vtkLabeledContourPolyDataItem.h.

vtkIdType vtkLabeledContourPolyDataItem::NumberOfTextActors

protected

Definition at line 139 of file vtkLabeledContourPolyDataItem.h.

vtkIdType vtkLabeledContourPolyDataItem::NumberOfUsedTextActors

protected

Definition at line 140 of file vtkLabeledContourPolyDataItem.h.

vtkTextActor3D** vtkLabeledContourPolyDataItem::TextActors

protected

Definition at line 141 of file vtkLabeledContourPolyDataItem.h.

LabelHelper** vtkLabeledContourPolyDataItem::LabelHelpers

protected

Definition at line 143 of file vtkLabeledContourPolyDataItem.h.

vtkSmartPointer<vtkTextPropertyCollection> vtkLabeledContourPolyDataItem::TextProperties

protected

Definition at line 145 of file vtkLabeledContourPolyDataItem.h.

vtkSmartPointer<vtkDoubleArray> vtkLabeledContourPolyDataItem::TextPropertyMapping

protected

Definition at line 146 of file vtkLabeledContourPolyDataItem.h.

vtkTimeStamp vtkLabeledContourPolyDataItem::LabelBuildTime

protected

Definition at line 148 of file vtkLabeledContourPolyDataItem.h.

---

The documentation for this class was generated from the following file:

• /home/demarle/Source/VTK/release/8.2/build/Utilities/Doxygen/dox/Rendering/Context2D/vtkLabeledContourPolyDataItem.h