VTK
9.3.0
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Legend item to display vtkScalarsToColors. More...
#include <vtkColorLegend.h>
Public Types | |
enum | { VERTICAL = 0 , HORIZONTAL } |
Enum of legend orientation types. More... | |
typedef vtkChartLegend | Superclass |
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enum | { LEFT = 0 , CENTER , RIGHT , TOP , BOTTOM , CUSTOM } |
typedef vtkContextItem | Superclass |
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typedef vtkAbstractContextItem | Superclass |
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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. | |
vtkColorLegend * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) override |
Methods invoked by print to print information about the object including superclasses. | |
virtual void | GetBounds (double bounds[4]) |
Bounds of the item, by default (0, 1, 0, 1) but it mainly depends on the range of the vtkScalarsToColors function. | |
void | Update () override |
Perform any updates to the item that may be necessary before rendering. | |
bool | Paint (vtkContext2D *painter) override |
Paint the texture into a rectangle defined by the bounds. | |
void | SetPoint (float x, float y) override |
Set the point this legend is anchored to. | |
virtual void | SetTextureSize (float w, float h) |
Set the size of the scalar bar drawn by this legend. | |
virtual void | SetPosition (const vtkRectf &pos) |
Set the origin, width, and height of the scalar bar drawn by this legend. | |
virtual vtkRectf | GetPosition () |
Returns the origin, width, and height of the scalar bar drawn by this legend. | |
vtkRectf | GetBoundingRect (vtkContext2D *painter) override |
Request the space the legend requires to be drawn. | |
bool | MouseMoveEvent (const vtkContextMouseEvent &mouse) override |
Mouse move event. | |
virtual void | SetTransferFunction (vtkScalarsToColors *transfer) |
Set/Get the transfer function that is used to draw the scalar bar within this legend. | |
virtual vtkScalarsToColors * | GetTransferFunction () |
Set/Get the transfer function that is used to draw the scalar bar within this legend. | |
virtual void | SetOrientation (int orientation) |
Set/get the orientation of the legend. | |
virtual int | GetOrientation () |
Set/get the orientation of the legend. | |
virtual void | SetTitle (const vtkStdString &title) |
Get/set the title text of the legend. | |
virtual vtkStdString | GetTitle () |
Get/set the title text of the legend. | |
virtual void | SetDrawBorder (bool) |
Toggle whether or not a border should be drawn around this legend. | |
virtual bool | GetDrawBorder () |
Toggle whether or not a border should be drawn around this legend. | |
virtual void | DrawBorderOn () |
Toggle whether or not a border should be drawn around this legend. | |
virtual void | DrawBorderOff () |
Toggle whether or not a border should be drawn around this legend. | |
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vtkChartLegend * | NewInstance () const |
void | SetPoint (const vtkVector2f &point) |
Set point the legend box is anchored to. | |
const vtkVector2f & | GetPointVector () |
Get point the legend box is anchored to. | |
virtual void | SetLabelSize (int size) |
Set the point size of the label text. | |
virtual int | GetLabelSize () |
Get the point size of the label text. | |
void | SetChart (vtkChart *chart) |
Set the chart that the legend belongs to and will draw the legend for. | |
vtkChart * | GetChart () |
Get the chart that the legend belongs to and will draw the legend for. | |
vtkPen * | GetPen () |
Get the pen used to draw the legend outline. | |
vtkBrush * | GetBrush () |
Get the brush used to draw the legend background. | |
vtkTextProperty * | GetLabelProperties () |
Get the vtkTextProperty for the legend's labels. | |
bool | Hit (const vtkContextMouseEvent &mouse) override |
Return true if the supplied x, y coordinate is inside the item. | |
bool | MouseButtonPressEvent (const vtkContextMouseEvent &mouse) override |
Mouse button down event. | |
bool | MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse) override |
Mouse button release event. | |
void | SetPoint (float[2]) |
Set point the legend box is anchored to. | |
virtual float * | GetPoint () |
Get point the legend box is anchored to. | |
virtual void | GetPoint (float &, float &) |
Get point the legend box is anchored to. | |
virtual void | GetPoint (float[2]) |
Get point the legend box is anchored to. | |
virtual void | SetHorizontalAlignment (int) |
Set the horizontal alignment of the legend to the point specified. | |
virtual int | GetHorizontalAlignment () |
Get the horizontal alignment of the legend to the point specified. | |
virtual void | SetVerticalAlignment (int) |
Set the vertical alignment of the legend to the point specified. | |
virtual int | GetVerticalAlignment () |
Get the vertical alignment of the legend to the point specified. | |
virtual void | SetPadding (int) |
Set the padding between legend marks, default is 5. | |
virtual int | GetPadding () |
Get the padding between legend marks. | |
virtual void | SetSymbolWidth (int) |
Set the symbol width, default is 15. | |
virtual int | GetSymbolWidth () |
Get the legend symbol width. | |
virtual void | SetInline (bool) |
Get/set if the legend should be drawn inline (inside the chart), or not. | |
virtual bool | GetInline () |
Get/set if the legend should be drawn inline (inside the chart), or not. | |
virtual void | SetDragEnabled (bool) |
Get/set if the legend can be dragged with the mouse button, or not. | |
virtual bool | GetDragEnabled () |
Get/set if the legend can be dragged with the mouse button, or not. | |
virtual void | SetCacheBounds (bool) |
Toggle whether or not this legend should attempt to cache its position and size. | |
virtual bool | GetCacheBounds () |
Toggle whether or not this legend should attempt to cache its position and size. | |
virtual void | CacheBoundsOn () |
Toggle whether or not this legend should attempt to cache its position and size. | |
virtual void | CacheBoundsOff () |
Toggle whether or not this legend should attempt to cache its position and size. | |
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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. | |
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vtkAbstractContextItem * | NewInstance () const |
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 vtkAbstractContextItem * | GetPickedItem (const vtkContextMouseEvent &mouse) |
Return the item under the mouse. | |
virtual bool | MouseEnterEvent (const vtkContextMouseEvent &mouse) |
Mouse enter event. | |
virtual bool | MouseLeaveEvent (const vtkContextMouseEvent &mouse) |
Mouse leave 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). | |
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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. | |
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const char * | GetClassName () const |
Return the class name as a string. | |
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. | |
virtual 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 vtkColorLegend * | SafeDownCast (vtkObjectBase *o) |
static vtkColorLegend * | New () |
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static vtkTypeBool | IsTypeOf (const char *type) |
static vtkChartLegend * | SafeDownCast (vtkObjectBase *o) |
static vtkChartLegend * | New () |
Creates a 2D Chart object. | |
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static vtkTypeBool | IsTypeOf (const char *type) |
static vtkContextItem * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
static vtkAbstractContextItem * | SafeDownCast (vtkObjectBase *o) |
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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. | |
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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 |
vtkColorLegend () | |
~vtkColorLegend () override | |
virtual void | ComputeTexture () |
Need to be reimplemented by subclasses, ComputeTexture() is called at paint time if the texture is not up to date compared to vtkColorLegend. | |
void | UpdateAxisPosition () |
Moves the axis whenever the position of this legend changes. | |
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vtkChartLegend () | |
~vtkChartLegend () override | |
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vtkContextItem ()=default | |
~vtkContextItem () override | |
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vtkAbstractContextItem () | |
~vtkAbstractContextItem () override | |
virtual void | ReleaseGraphicsCache () |
Release cache entries created by this context item. | |
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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. | |
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vtkObjectBase () | |
virtual | ~vtkObjectBase () |
virtual void | ReportReferences (vtkGarbageCollector *) |
vtkObjectBase (const vtkObjectBase &) | |
void | operator= (const vtkObjectBase &) |
Protected Attributes | |
vtkScalarsToColors * | TransferFunction |
vtkSmartPointer< vtkImageData > | ImageData |
vtkSmartPointer< vtkAxis > | Axis |
vtkSmartPointer< vtkCallbackCommand > | Callback |
bool | Interpolate |
bool | CustomPositionSet |
bool | DrawBorder |
vtkRectf | Position |
int | Orientation |
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float * | Point |
int | HorizontalAlignment |
int | VerticalAlignment |
vtkNew< vtkPen > | Pen |
The pen used to draw the legend box. | |
vtkNew< vtkBrush > | Brush |
The brush used to render the background of the legend. | |
vtkNew< vtkTextProperty > | LabelProperties |
The text properties of the labels used in the legend. | |
bool | DragEnabled |
Should we move the legend box around in response to the mouse drag? | |
bool | CacheBounds |
Should the legend attempt to avoid recalculating its position & bounds unnecessarily? | |
int | Button |
Last button to be pressed. | |
vtkTimeStamp | PlotTime |
vtkTimeStamp | RectTime |
vtkRectf | Rect |
int | Padding |
Padding between symbol and text. | |
int | SymbolWidth |
Width of the symbols in pixels in the legend. | |
bool | Inline |
Should the legend be drawn inline in its chart? | |
Private * | Storage |
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double | Opacity = 1.0 |
vtkContextTransform * | Transform = nullptr |
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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). | |
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bool | Debug |
vtkTimeStamp | MTime |
vtkSubjectHelper * | SubjectHelper |
std::string | ObjectName |
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std::atomic< int32_t > | ReferenceCount |
vtkWeakPointerBase ** | WeakPointers |
virtual void | ScalarsToColorsModified (vtkObject *caller, unsigned long eid, void *calldata) |
Called whenever the ScalarsToColors function(s) is modified. | |
static void | OnScalarsToColorsModified (vtkObject *caller, unsigned long eid, void *clientdata, void *calldata) |
Called whenever the ScalarsToColors function(s) is modified. | |
Additional Inherited Members | |
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static vtkMallocingFunction | GetCurrentMallocFunction () |
static vtkReallocingFunction | GetCurrentReallocFunction () |
static vtkFreeingFunction | GetCurrentFreeFunction () |
static vtkFreeingFunction | GetAlternateFreeFunction () |
Legend item to display vtkScalarsToColors.
vtkColorLegend is an item that will display the vtkScalarsToColors using a 1D texture, and a vtkAxis to show both the color and numerical range.
Definition at line 27 of file vtkColorLegend.h.
Definition at line 30 of file vtkColorLegend.h.
Enum of legend orientation types.
Enumerator | |
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VERTICAL | |
HORIZONTAL |
Definition at line 37 of file vtkColorLegend.h.
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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 vtkChartLegend.
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Reimplemented from vtkChartLegend.
vtkColorLegend * vtkColorLegend::NewInstance | ( | ) | const |
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 vtkChartLegend.
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Bounds of the item, by default (0, 1, 0, 1) but it mainly depends on the range of the vtkScalarsToColors function.
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Perform any updates to the item that may be necessary before rendering.
The scene should take care of calling this on all items before their Paint function is invoked.
Reimplemented from vtkChartLegend.
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Paint the texture into a rectangle defined by the bounds.
If MaskAboveCurve is true and a shape has been provided by a subclass, it draws the texture into the shape
Reimplemented from vtkChartLegend.
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Set/Get the transfer function that is used to draw the scalar bar within this legend.
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Set/Get the transfer function that is used to draw the scalar bar within this legend.
Set the point this legend is anchored to.
Reimplemented from vtkChartLegend.
Set the size of the scalar bar drawn by this legend.
Set the origin, width, and height of the scalar bar drawn by this legend.
This method overrides the anchor point, as well as any horizontal and vertical alignment that has been set for this legend. If this is a problem for you, use SetPoint() and SetTextureSize() instead.
Returns the origin, width, and height of the scalar bar drawn by this legend.
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Request the space the legend requires to be drawn.
This is returned as a vtkRect4f, with the corner being the offset from Point, and the width/ height being the total width/height required by the axis. In order to ensure the numbers are correct, Update() should be called first.
Reimplemented from vtkChartLegend.
Set/get the orientation of the legend.
Valid orientations are VERTICAL (default) and HORIZONTAL.
Set/get the orientation of the legend.
Valid orientations are VERTICAL (default) and HORIZONTAL.
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Get/set the title text of the legend.
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Get/set the title text of the legend.
Toggle whether or not a border should be drawn around this legend.
The default behavior is to not draw a border.
Toggle whether or not a border should be drawn around this legend.
The default behavior is to not draw a border.
Toggle whether or not a border should be drawn around this legend.
The default behavior is to not draw a border.
Toggle whether or not a border should be drawn around this legend.
The default behavior is to not draw a border.
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Mouse move event.
Reimplemented from vtkChartLegend.
Need to be reimplemented by subclasses, ComputeTexture() is called at paint time if the texture is not up to date compared to vtkColorLegend.
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Called whenever the ScalarsToColors function(s) is modified.
It internally calls Modified(). Can be reimplemented by subclasses.
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Called whenever the ScalarsToColors function(s) is modified.
It internally calls Modified(). Can be reimplemented by subclasses.
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Moves the axis whenever the position of this legend changes.
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Definition at line 161 of file vtkColorLegend.h.
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Definition at line 162 of file vtkColorLegend.h.
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Definition at line 163 of file vtkColorLegend.h.
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Definition at line 164 of file vtkColorLegend.h.
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Definition at line 165 of file vtkColorLegend.h.
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Definition at line 166 of file vtkColorLegend.h.
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Definition at line 167 of file vtkColorLegend.h.
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Definition at line 168 of file vtkColorLegend.h.
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Definition at line 169 of file vtkColorLegend.h.