vtkRangeHandlesItem Class Reference

item to show and control the range of a vtkColorTransferFunction More...

#include <vtkRangeHandlesItem.h>

Inheritance diagram for vtkRangeHandlesItem:

Collaboration diagram for vtkRangeHandlesItem:

Public Types
typedef vtkPlotRangeHandlesItem	Superclass
Public Types inherited from vtkPlotRangeHandlesItem
enum	Handle { NO_HANDLE = -1 , LEFT_HANDLE = 0 , RIGHT_HANDLE = 1 }
enum	Orientation { VERTICAL = 0 , HORIZONTAL = 1 }
typedef vtkPlot	Superclass
Public Types inherited from vtkPlot
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.
vtkRangeHandlesItem *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
bool	Paint (vtkContext2D *painter) override
	Overridden to check that a color transfer function has been set before painting.
void	GetBounds (double bounds[4]) override
	Overridden to get the bounds from the color transfer function range.
void	GetHandlesRange (double range[2]) override
	Overridden to return the range of the color transfer function.
void	ComputeHandlesDrawRange () override
	Compute the handles draw range by using the handle width and the transfer function.
void	SetColorTransferFunction (vtkColorTransferFunction *ctf)
	Get/set the color transfer function to interact with.
virtual vtkColorTransferFunction *	GetColorTransferFunction ()
	Get/set the color transfer function to interact with.
void	SynchronizeRangeHandlesOn () override
	Overridden to force using desynchronized vertical handles.
void	SetSynchronizeRangeHandles (vtkTypeBool vtkNotUsed(synchronize)) override
	Overridden to force using desynchronized vertical handles.
void	SetHandleOrientation (int vtkNotUsed(orientation)) override
	Overridden to force using desynchronized vertical handles.
Public Member Functions inherited from vtkPlotRangeHandlesItem
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkPlotRangeHandlesItem *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
bool	Paint (vtkContext2D *painter) override
	Paint both handles and the range if a handle is active or hovered.
void	GetBounds (double bounds[4]) override
	Recover the bounds of the item.
virtual void	GetHandlesRange (double range[2])
	Recover the range currently set by the handles Use this method by observing EndInteractionEvent.
virtual vtkBrush *	GetHighlightBrush ()
	Return the brush used to paint handles being hovered.
virtual void	ComputeHandlesDrawRange ()
	Compute the handles draw range by using the handle width and the transfer function.
virtual void	SetHandleWidth (float)
	Set/Get the handles width in pixels.
virtual float	GetHandleWidth ()
	Set/Get the handles width in pixels.
virtual void	SetHandleOrientation (int)
	Set/Get the handles orientation in the plot.
virtual int	GetHandleOrientation ()
	Set/Get the handles orientation in the plot.
void	SetHandleOrientationToVertical ()
	Set/Get the handles orientation in the plot.
void	SetHandleOrientationToHorizontal ()
	Set/Get the handles orientation in the plot.
virtual void	SetExtent (double, double, double, double)
	Set/Get the extent of the handles in data space (axis unscaled range).
virtual void	SetExtent (double[4])
	Set/Get the extent of the handles in data space (axis unscaled range).
virtual double *	GetExtent ()
	Set/Get the extent of the handles in data space (axis unscaled range).
virtual void	GetExtent (double &, double &, double &, double &)
	Set/Get the extent of the handles in data space (axis unscaled range).
virtual void	GetExtent (double[4])
	Set/Get the extent of the handles in data space (axis unscaled range).
virtual void	SetExtentToAxisRange (vtkTypeBool)
	Set/Get whether handles span the range of the axis.
virtual vtkTypeBool	GetExtentToAxisRange ()
	Set/Get whether handles span the range of the axis.
virtual void	ExtentToAxisRangeOn ()
	Set/Get whether handles span the range of the axis.
virtual void	ExtentToAxisRangeOff ()
	Set/Get whether handles span the range of the axis.
virtual void	SetSynchronizeRangeHandles (vtkTypeBool)
	Set/Get whether handles move together when one of them is update.
virtual vtkTypeBool	GetSynchronizeRangeHandles ()
	Set/Get whether handles move together when one of them is update.
virtual void	SynchronizeRangeHandlesOff ()
	Set/Get whether handles move together when one of them is update.
virtual void	SetLockTooltipToMouse (vtkTypeBool)
	If On, the range tooltip is always rendered using mouse position, otherwise it is placed at the center of the x axis Default is On.
virtual vtkTypeBool	GetLockTooltipToMouse ()
	If On, the range tooltip is always rendered using mouse position, otherwise it is placed at the center of the x axis Default is On.
virtual void	LockTooltipToMouseOn ()
	If On, the range tooltip is always rendered using mouse position, otherwise it is placed at the center of the x axis Default is On.
virtual void	LockTooltipToMouseOff ()
	If On, the range tooltip is always rendered using mouse position, otherwise it is placed at the center of the x axis Default is On.
Public Member Functions inherited from vtkPlot
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkPlot *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
void	Update () override
	Perform any updates to the item that may be necessary before rendering.
virtual bool	PaintLegend (vtkContext2D *painter, const vtkRectf &rect, int legendIndex)
	Paint legend event for the plot, called whenever the legend needs the plot items symbol/mark/line drawn.
virtual vtkStdString	GetTooltipLabel (const vtkVector2d &plotPos, vtkIdType seriesIndex, vtkIdType segmentIndex)
	Generate and return the tooltip label string for this plot The segmentIndex parameter is ignored, except for vtkPlotBar.
virtual vtkIdType	GetNearestPoint (const vtkVector2f &point, const vtkVector2f &tolerance, vtkVector2f *location, vtkIdType *segmentId)
	Function to query a plot for the nearest point to the specified coordinate.
virtual bool	SelectPoints (const vtkVector2f &min, const vtkVector2f &max)
	Select all points in the specified rectangle.
virtual bool	SelectPointsInPolygon (const vtkContextPolygon &polygon)
	Select all points in the specified polygon.
virtual void	SetLabel (const vtkStdString &label)
	Set the label of this plot.
virtual vtkStdString	GetLabel ()
	Get the label of this plot.
virtual void	SetLabels (vtkStringArray *labels)
	Set the plot labels, these are used for stacked chart variants, with the index referring to the stacking index.
virtual vtkStringArray *	GetLabels ()
	Get the plot labels.
virtual int	GetNumberOfLabels ()
	Get the number of labels associated with this plot.
vtkStdString	GetLabel (vtkIdType index)
	Get the label at the specified index.
void	SetIndexedLabels (vtkStringArray *labels)
	Set indexed labels for the plot.
virtual vtkStringArray *	GetIndexedLabels ()
	Get the indexed labels array.
vtkContextMapper2D *	GetData ()
	Get the data object that the plot will draw.
virtual vtkTable *	GetInput ()
	Get the input table used by the plot.
vtkAlgorithmOutput *	GetInputConnection ()
	Get the input connection used by the plot.
virtual void	SetInputArray (int index, const vtkStdString &name)
	Convenience function to set the input arrays.
virtual void	GetBounds (double bounds[4])
	Get the bounds for this plot as (Xmin, Xmax, Ymin, Ymax).
virtual void	GetUnscaledInputBounds (double bounds[4])
	Provide un-log-scaled bounds for the plot inputs.
bool	Hit (const vtkContextMouseEvent &mouse) override
	Returns true if the supplied x, y coordinate is inside the item.
virtual bool	UpdateCache ()
	Update the internal cache.
virtual void	SetLegendVisibility (bool)
	Set whether the plot renders an entry in the legend.
virtual bool	GetLegendVisibility ()
	Set whether the plot renders an entry in the legend.
virtual void	LegendVisibilityOn ()
	Set whether the plot renders an entry in the legend.
virtual void	LegendVisibilityOff ()
	Set whether the plot renders an entry in the legend.
virtual void	SetTooltipLabelFormat (const vtkStdString &label)
	Sets/gets a printf-style string to build custom tooltip labels from.
virtual vtkStdString	GetTooltipLabelFormat ()
	Sets/gets a printf-style string to build custom tooltip labels from.
virtual void	SetTooltipNotation (int notation)
	Sets/gets the tooltip notation style.
virtual int	GetTooltipNotation ()
	Sets/gets the tooltip notation style.
virtual void	SetTooltipPrecision (int precision)
	Sets/gets the tooltip precision.
virtual int	GetTooltipPrecision ()
	Sets/gets the tooltip precision.
virtual void	SetColor (unsigned char r, unsigned char g, unsigned char b, unsigned char a)
	Set the plot color with integer values (comprised between 0 and 255)
virtual void	SetColor (unsigned char r, unsigned char g, unsigned char b)
	Set the plot color with integer values (comprised between 0 and 255)
virtual void	SetColorF (double r, double g, double b, double a)
	Set the plot color with floating values (comprised between 0.0 and 1.0)
virtual void	SetColorF (double r, double g, double b)
	Set the plot color with floating values (comprised between 0.0 and 1.0)
virtual void	GetColor (unsigned char rgb[3])
	Get the plot color as integer rgb values (comprised between 0 and 255)
void	GetColorRGBA (unsigned char rgba[4])
	Get the plot color as integer rgb values (comprised between 0 and 255)
virtual void	GetColorF (double rgb[3])
	Get the plot color as floating rgb values (comprised between 0.0 and 1.0)
virtual void	SetWidth (float width)
	@
virtual float	GetWidth ()
	Get the width of the line.
void	SetPen (vtkPen *pen)
	Set/get the vtkPen object that controls how this plot draws (out)lines.
vtkPen *	GetPen ()
	Get the plot color as floating rgb values (comprised between 0.0 and 1.0)
void	SetBrush (vtkBrush *brush)
	Set/get the vtkBrush object that controls how this plot fills shapes.
vtkBrush *	GetBrush ()
	Set/get the vtkBrush object that controls how this plot fills shapes.
void	SetSelectionPen (vtkPen *pen)
	Set/get the vtkBrush object that controls how this plot fills selected shapes.
vtkPen *	GetSelectionPen ()
	Set/get the vtkBrush object that controls how this plot fills selected shapes.
void	SetSelectionBrush (vtkBrush *brush)
	Set/get the vtkBrush object that controls how this plot fills selected shapes.
vtkBrush *	GetSelectionBrush ()
	Set/get the vtkBrush object that controls how this plot fills selected shapes.
virtual bool	GetUseIndexForXSeries ()
	Use the Y array index for the X value.
virtual void	SetUseIndexForXSeries (bool)
	Use the Y array index for the X value.
virtual void	SetInputData (vtkTable *table)
	This is a convenience function to set the input table and the x, y column for the plot.
virtual void	SetInputData (vtkTable *table, const vtkStdString &xColumn, const vtkStdString &yColumn)
	This is a convenience function to set the input table and the x, y column for the plot.
void	SetInputData (vtkTable *table, vtkIdType xColumn, vtkIdType yColumn)
	This is a convenience function to set the input table and the x, y column for the plot.
virtual void	SetInputConnection (vtkAlgorithmOutput *input)
	This is a convenience function to set the input connection for the plot.
void	SetXAxisInputArrayToProcess (const std::string &name)
	Convenient function to directly set/get the names of columns used for X and Y axis respectively.
std::string	GetXAxisInputArrayToProcess ()
	Convenient function to directly set/get the names of columns used for X and Y axis respectively.
void	SetYAxisInputArrayToProcess (const std::string &name)
	Convenient function to directly set/get the names of columns used for X and Y axis respectively.
std::string	GetYAxisInputArrayToProcess ()
	Convenient function to directly set/get the names of columns used for X and Y axis respectively.
virtual void	SetSelectable (bool)
	Set whether the plot can be selected.
virtual bool	GetSelectable ()
	Set whether the plot can be selected.
virtual void	SelectableOn ()
	Set whether the plot can be selected.
virtual void	SelectableOff ()
	Set whether the plot can be selected.
virtual void	SetSelection (vtkIdTypeArray *id)
	Sets the list of points that must be selected.
virtual vtkIdTypeArray *	GetSelection ()
	Sets the list of points that must be selected.
virtual vtkAxis *	GetXAxis ()
	Get/set the X axis associated with this plot.
virtual void	SetXAxis (vtkAxis *axis)
	Get/set the X axis associated with this plot.
virtual vtkAxis *	GetYAxis ()
	Get/set the Y axis associated with this plot.
virtual void	SetYAxis (vtkAxis *axis)
	Get/set the Y axis associated with this plot.
void	SetShiftScale (const vtkRectd &shiftScale)
	Get/set the origin shift and scaling factor used by the plot, this is normally 0.0 offset and 1.0 scaling, but can be used to render data outside of the single precision range.
vtkRectd	GetShiftScale ()
	Get/set the origin shift and scaling factor used by the plot, this is normally 0.0 offset and 1.0 scaling, but can be used to render data outside of the single precision range.
virtual void	SetProperty (const vtkStdString &property, const vtkVariant &var)
	A General setter/getter that should be overridden.
virtual vtkVariant	GetProperty (const vtkStdString &property)
	A General setter/getter that should be overridden.
virtual bool	ClampPos (double pos[2])
	Clamp the given 2D pos into the provided bounds Return true if the pos has been clamped, false otherwise.
Public Member Functions inherited from vtkContextItem
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkContextItem *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
virtual void	SetTransform (vtkContextTransform *)
	Set the transform of the item.
virtual double	GetOpacity ()
	Get the opacity of the item.
virtual void	SetOpacity (double)
	Set the opacity of the item.
Public Member Functions inherited from vtkAbstractContextItem
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkAbstractContextItem *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
virtual void	Update ()
	Perform any updates to the item that may be necessary before rendering.
virtual bool	Paint (vtkContext2D *painter)
	Paint event for the item, called whenever the item needs to be drawn.
virtual bool	PaintChildren (vtkContext2D *painter)
	Paint the children of the item, should be called whenever the children need to be rendered.
virtual void	ReleaseGraphicsResources ()
	Release graphics resources hold by the item.
vtkIdType	AddItem (vtkAbstractContextItem *item)
	Add child items to this item.
bool	RemoveItem (vtkAbstractContextItem *item)
	Remove child item from this item.
bool	RemoveItem (vtkIdType index)
	Remove child item from this item.
vtkAbstractContextItem *	GetItem (vtkIdType index)
	Get the item at the specified index.
vtkIdType	GetItemIndex (vtkAbstractContextItem *item)
	Get the index of the specified item in itemIndex.
vtkIdType	GetNumberOfItems ()
	Get the number of child items.
void	ClearItems ()
	Remove all child items from this item.
vtkIdType	Raise (vtkIdType index)
	Raises the child to the top of the item's stack.
virtual vtkIdType	StackAbove (vtkIdType index, vtkIdType under)
	Raises the child above the under sibling.
vtkIdType	Lower (vtkIdType index)
	Lowers the child to the bottom of the item's stack.
virtual vtkIdType	StackUnder (vtkIdType child, vtkIdType above)
	Lowers the child under the above sibling.
virtual bool	Hit (const vtkContextMouseEvent &mouse)
	Return true if the supplied x, y coordinate is inside the item.
virtual vtkAbstractContextItem *	GetPickedItem (const vtkContextMouseEvent &mouse)
	Return the item under the mouse.
virtual bool	MouseEnterEvent (const vtkContextMouseEvent &mouse)
	Mouse enter event.
virtual bool	MouseMoveEvent (const vtkContextMouseEvent &mouse)
	Mouse move event.
virtual bool	MouseLeaveEvent (const vtkContextMouseEvent &mouse)
	Mouse leave event.
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.
virtual bool	MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse)
	Mouse button release event.
virtual bool	MouseDoubleClickEvent (const vtkContextMouseEvent &mouse)
	Mouse button double click event.
virtual bool	MouseWheelEvent (const vtkContextMouseEvent &mouse, int delta)
	Mouse wheel event, positive delta indicates forward movement of the wheel.
virtual bool	KeyPressEvent (const vtkContextKeyEvent &key)
	Key press event.
virtual bool	KeyReleaseEvent (const vtkContextKeyEvent &key)
	Key release event.
virtual void	SetScene (vtkContextScene *scene)
	Set the vtkContextScene for the item, always set for an item in a scene.
vtkContextScene *	GetScene ()
	Get the vtkContextScene for the item, always set for an item in a scene.
virtual void	SetParent (vtkAbstractContextItem *parent)
	Set the parent item.
vtkAbstractContextItem *	GetParent ()
	Get the parent item.
virtual vtkVector2f	MapToParent (const vtkVector2f &point)
	Maps the point to the parent coordinate system.
virtual vtkVector2f	MapFromParent (const vtkVector2f &point)
	Maps the point from the parent coordinate system.
virtual vtkVector2f	MapToScene (const vtkVector2f &point)
	Maps the point to the scene coordinate system.
virtual vtkVector2f	MapFromScene (const vtkVector2f &point)
	Maps the point from the scene coordinate system.
virtual bool	GetVisible ()
	Get the visibility of the item (should it be drawn).
virtual void	SetVisible (bool)
	Set the visibility of the item (should it be drawn).
virtual bool	GetInteractive ()
	Get if the item is interactive (should respond to mouse events).
virtual void	SetInteractive (bool)
	Set if the item is interactive (should respond to mouse events).
Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)
virtual void	DebugOn ()
	Turn debugging output on.
virtual void	DebugOff ()
	Turn debugging output off.
bool	GetDebug ()
	Get the value of the debug flag.
void	SetDebug (bool debugFlag)
	Set the value of the debug flag.
virtual void	Modified ()
	Update the modification time for this object.
virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
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)
vtkTypeBool	InvokeEvent (unsigned long event)
vtkTypeBool	InvokeEvent (const char *event)
std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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.
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.
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.
vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
vtkTypeBool	InvokeEvent (const char *event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.
virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.
virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.
virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.
virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
virtual void	Delete ()
	Delete a VTK object.
virtual void	FastDelete ()
	Delete a reference to this object.
void	InitializeObjectBase ()
void	Print (ostream &os)
	Print an object to an ostream.
void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).
virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).
int	GetReferenceCount ()
	Return the current reference count of this object.
void	SetReferenceCount (int)
	Sets the reference count.
bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.
virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.
virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses vtkGarbageCollector or not.

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)
static vtkRangeHandlesItem *	SafeDownCast (vtkObjectBase *o)
static vtkRangeHandlesItem *	New ()
Static Public Member Functions inherited from vtkPlotRangeHandlesItem
static vtkTypeBool	IsTypeOf (const char *type)
static vtkPlotRangeHandlesItem *	SafeDownCast (vtkObjectBase *o)
static vtkPlotRangeHandlesItem *	New ()
Static Public Member Functions inherited from vtkPlot
static vtkTypeBool	IsTypeOf (const char *type)
static vtkPlot *	SafeDownCast (vtkObjectBase *o)
static void	FilterSelectedPoints (vtkDataArray *points, vtkDataArray *selectedPoints, vtkIdTypeArray *selectedIds)
	Utility function that fills up selectedPoints with tuples from points.
static bool	ClampPos (double pos[2], double bounds[4])
	Clamp the given 2D pos into the provided bounds Return true if the pos has been clamped, false otherwise.
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.
static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.
static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
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.
static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkRangeHandlesItem ()
	~vtkRangeHandlesItem () override
void	SetActiveHandlePosition (double position) override
	Overridden to clamp the handle position in the color transfer function range.
Protected Member Functions inherited from vtkPlotRangeHandlesItem
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPlotRangeHandlesItem ()
	~vtkPlotRangeHandlesItem () override
void	ComputeRange (double *range)
	Compute the range used for the handles.
void	ComputeHandleDelta (double screenBounds[4])
	Compute the delta used for the picking handle size.
bool	Hit (const vtkContextMouseEvent &mouse) override
	Returns true if the supplied x, y coordinate is around a handle.
virtual int	FindRangeHandle (const vtkVector2f &point, const vtkVector2f &tolerance)
	Returns the handle the provided point is over with a provided tolerance, it can be NO_HANDLE, LEFT_HANDLE or RIGHT_HANDLE.
virtual void	SetActiveHandlePosition (double position)
	Internal method to set the ActiveHandlePosition and compute the ActiveHandleRangeValue accordingly.
bool	IsActiveHandleMoved (double tolerance)
	Internal method to check if the active handle have actually been moved.
void	SetCursor (int cursor)
	Set the cursor shape.
	vtkPlotRangeHandlesItem (const vtkPlotRangeHandlesItem &)=delete
void	operator= (const vtkPlotRangeHandlesItem &)=delete
void	GetAxesRange (double *abcissaRange, double *ordinateRange)
	Get the logical range of abcissa or ordinate axis based on the handle orientation, in plot coordinates.
void	GetAxesUnscaledRange (double *abcissaRange, double *ordinateRange)
	Get the logical range of abcissa or ordinate axis based on the handle orientation, in plot coordinates.
void	TransformScreenToData (double inX, double inY, double &outX, double &outY) override
	Transform the mouse event in the control-points space.
void	TransformDataToScreen (double inX, double inY, double &outX, double &outY) override
	Transform the mouse event in the control-points space.
virtual void	TransformDataToScreen (const vtkVector2f &in, vtkVector2f &out)
	Transform the mouse event in the control-points space.
virtual void	TransformDataToScreen (double inX, double inY, double &outX, double &outY)
	Transform the mouse event in the control-points space.
virtual void	TransformScreenToData (const vtkVector2f &in, vtkVector2f &out)
	Transform the mouse event in the control-points space.
virtual void	TransformScreenToData (double inX, double inY, double &outX, double &outY)
	Transform the mouse event in the control-points space.
bool	MouseButtonPressEvent (const vtkContextMouseEvent &mouse) override
	Interaction methods to interact with the handles.
bool	MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse) override
	Interaction methods to interact with the handles.
bool	MouseMoveEvent (const vtkContextMouseEvent &mouse) override
	Interaction methods to interact with the handles.
bool	MouseEnterEvent (const vtkContextMouseEvent &mouse) override
	Interaction methods to interact with the handles.
bool	MouseLeaveEvent (const vtkContextMouseEvent &mouse) override
	Interaction methods to interact with the handles.
bool	MouseDoubleClickEvent (const vtkContextMouseEvent &mouse) override
	Interaction methods to interact with the handles.
Protected Member Functions inherited from vtkPlot
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPlot ()
	~vtkPlot () override
vtkStdString	GetNumber (double position, vtkAxis *axis)
	Get the properly formatted number for the supplied position and axis.
virtual bool	CacheRequiresUpdate ()
	Test if the internal cache requires an update.
Protected Member Functions inherited from vtkContextItem
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkContextItem ()=default
	~vtkContextItem () override
Protected Member Functions inherited from vtkAbstractContextItem
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkAbstractContextItem ()
	~vtkAbstractContextItem () override
virtual void	ReleaseGraphicsCache ()
	Release cache entries created by this context item.
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.
void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	ReportReferences (vtkGarbageCollector *)
virtual void	ObjectFinalize ()
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()
static vtkReallocingFunction	GetCurrentReallocFunction ()
static vtkFreeingFunction	GetCurrentFreeFunction ()
static vtkFreeingFunction	GetAlternateFreeFunction ()
Protected Attributes inherited from vtkPlotRangeHandlesItem
float	HandleWidth = 2
float	HandleDelta = 0
float	LeftHandleDrawRange [2] = { 0, 0 }
float	RightHandleDrawRange [2] = { 0, 0 }
int	ActiveHandle = NO_HANDLE
int	HoveredHandle = NO_HANDLE
float	HoveredPosition [2] = { 0, 0 }
vtkTypeBool	LockTooltipToMouse = true
double	ActiveHandlePosition = 0
double	ActiveHandleRangeValue = 0
vtkNew< vtkBrush >	HighlightBrush
vtkNew< vtkBrush >	RangeLabelBrush
double	Extent [4] = { 0, 1, 0, 1 }
vtkTypeBool	ExtentToAxisRange = true
vtkTypeBool	SynchronizeRangeHandles = false
int	HandleOrientation = VERTICAL
Protected Attributes inherited from vtkPlot
vtkTimeStamp	BuildTime
	The point cache is marked dirty until it has been initialized.
vtkSmartPointer< vtkPen >	Pen
	This object stores the vtkPen that controls how the plot is drawn.
vtkSmartPointer< vtkBrush >	Brush
	This object stores the vtkBrush that controls how the plot is drawn.
vtkSmartPointer< vtkPen >	SelectionPen
	This object stores the vtkPen that controls how the selected elements of the plot are drawn.
vtkSmartPointer< vtkBrush >	SelectionBrush
	This object stores the vtkBrush that controls how the selected elements of the plot are drawn.
vtkSmartPointer< vtkStringArray >	Labels
	Plot labels, used by legend.
vtkSmartPointer< vtkStringArray >	AutoLabels
	Holds Labels when they're auto-created.
vtkSmartPointer< vtkStringArray >	IndexedLabels
	Holds Labels when they're auto-created.
bool	UseIndexForXSeries
	Use the Y array index for the X value.
vtkSmartPointer< vtkContextMapper2D >	Data
	This data member contains the data that will be plotted, it inherits from vtkAlgorithm.
bool	Selectable
	Whether plot points can be selected or not.
vtkIdTypeArray *	Selection
	Selected indices for the table the plot is rendering.
vtkAxis *	XAxis
	The X axis associated with this plot.
vtkAxis *	YAxis
	The X axis associated with this plot.
vtkStdString	TooltipLabelFormat
	A printf-style string to build custom tooltip labels from.
vtkStdString	TooltipDefaultLabelFormat
	The default printf-style string to build custom tooltip labels from.
int	TooltipNotation
int	TooltipPrecision
vtkRectd	ShiftScale
	The current shift in origin and scaling factor applied to the plot.
bool	LegendVisibility
Protected Attributes inherited from vtkContextItem
double	Opacity = 1.0
vtkContextTransform *	Transform = nullptr
Protected Attributes inherited from vtkAbstractContextItem
vtkContextScene *	Scene
	Point to the scene the item is on - can be null.
vtkAbstractContextItem *	Parent
	Point to the parent item - can be null.
vtkContextScenePrivate *	Children
	This structure provides a list of children, along with convenience functions to paint the children etc.
bool	Visible
	Store the visibility of the item (default is true).
bool	Interactive
	Store whether the item should respond to interactions (default is true).
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
std::string	ObjectName
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Detailed Description

item to show and control the range of a vtkColorTransferFunction

vtkRangeHandlesItem provides range handles painting and management for a provided vtkColorTransferFunction. This specialization of vtkPlotRangeHandlesItem works in coordination with the color transfer function to drive the behavior of handles. Handles can only be dragged within the color transfer function range and are forced to be placed vertically with a fixed height of 1.

A typical use case for this class is to observe EndInteractionEvent to update the color transfer function range using the handles range.

See also

vtkControlPointsItem vtkScalarsToColorsItem vtkColorTransferFunctionItem

Tests:

vtkRangeHandlesItem (Tests)

Definition at line 37 of file vtkRangeHandlesItem.h.

Member Typedef Documentation

Superclass

typedef vtkPlotRangeHandlesItem vtkRangeHandlesItem::Superclass

Definition at line 40 of file vtkRangeHandlesItem.h.

Constructor & Destructor Documentation

vtkRangeHandlesItem()

vtkRangeHandlesItem::vtkRangeHandlesItem ( )

protected

~vtkRangeHandlesItem()

vtkRangeHandlesItem::~vtkRangeHandlesItem ( )

overrideprotected

Member Function Documentation

IsTypeOf()

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

static

IsA()

virtual vtkTypeBool vtkRangeHandlesItem::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 vtkPlotRangeHandlesItem.

SafeDownCast()

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

static

NewInstanceInternal()

virtual vtkObjectBase * vtkRangeHandlesItem::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPlotRangeHandlesItem.

NewInstance()

vtkRangeHandlesItem * vtkRangeHandlesItem::NewInstance

(

)

const

PrintSelf()

void vtkRangeHandlesItem::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 vtkPlotRangeHandlesItem.

New()

static vtkRangeHandlesItem * vtkRangeHandlesItem::New ( )

static

Paint()

bool vtkRangeHandlesItem::Paint ( vtkContext2D *  painter )

overridevirtual

Overridden to check that a color transfer function has been set before painting.

Reimplemented from vtkPlotRangeHandlesItem.

GetBounds()

void vtkRangeHandlesItem::GetBounds ( double  bounds[4] )

overridevirtual

Overridden to get the bounds from the color transfer function range.

Reimplemented from vtkPlotRangeHandlesItem.

GetHandlesRange()

void vtkRangeHandlesItem::GetHandlesRange ( double  range[2] )

overridevirtual

Overridden to return the range of the color transfer function.

Use this method by observing EndInteractionEvent

Reimplemented from vtkPlotRangeHandlesItem.

SetColorTransferFunction()

void vtkRangeHandlesItem::SetColorTransferFunction

(

vtkColorTransferFunction *

ctf

)

Get/set the color transfer function to interact with.

GetColorTransferFunction()

virtual vtkColorTransferFunction * vtkRangeHandlesItem::GetColorTransferFunction ( )

virtual

Get/set the color transfer function to interact with.

ComputeHandlesDrawRange()

void vtkRangeHandlesItem::ComputeHandlesDrawRange ( )

overridevirtual

Compute the handles draw range by using the handle width and the transfer function.

Reimplemented from vtkPlotRangeHandlesItem.

SynchronizeRangeHandlesOn()

void vtkRangeHandlesItem::SynchronizeRangeHandlesOn ( )

inlineoverridevirtual

Overridden to force using desynchronized vertical handles.

Desynchronized handles means that handles are always moved independently, as opposed to synchronized handles where the left handle drives the modification of the whole range. See superclass for more information.

Reimplemented from vtkPlotRangeHandlesItem.

Definition at line 82 of file vtkRangeHandlesItem.h.

SetSynchronizeRangeHandles()

void vtkRangeHandlesItem::SetSynchronizeRangeHandles ( vtkTypeBool   vtkNotUsedsynchronize )

inlineoverride

Overridden to force using desynchronized vertical handles.

Desynchronized handles means that handles are always moved independently, as opposed to synchronized handles where the left handle drives the modification of the whole range. See superclass for more information.

Definition at line 84 of file vtkRangeHandlesItem.h.

SetHandleOrientation()

void vtkRangeHandlesItem::SetHandleOrientation ( int   vtkNotUsedorientation )

inlineoverride

Overridden to force using desynchronized vertical handles.

Desynchronized handles means that handles are always moved independently, as opposed to synchronized handles where the left handle drives the modification of the whole range. See superclass for more information.

Definition at line 89 of file vtkRangeHandlesItem.h.

SetActiveHandlePosition()

void vtkRangeHandlesItem::SetActiveHandlePosition ( double  position )

overrideprotectedvirtual

Overridden to clamp the handle position in the color transfer function range.

Reimplemented from vtkPlotRangeHandlesItem.

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

• Charts/Core/vtkRangeHandlesItem.h