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vtkAreaLayoutStrategy Class Referenceabstract

abstract superclass for all area layout strategies More...

#include <vtkAreaLayoutStrategy.h>

Inheritance diagram for vtkAreaLayoutStrategy:
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Collaboration diagram for vtkAreaLayoutStrategy:
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Public Types

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...
 
vtkAreaLayoutStrategyNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual void Layout (vtkTree *inputTree, vtkDataArray *areaArray, vtkDataArray *sizeArray)=0
 Perform the layout of the input tree, and store the sector bounds of each vertex as a tuple in a data array. More...
 
virtual void LayoutEdgePoints (vtkTree *inputTree, vtkDataArray *areaArray, vtkDataArray *sizeArray, vtkTree *edgeLayoutTree)
 
virtual vtkIdType FindVertex (vtkTree *tree, vtkDataArray *array, float pnt[2])=0
 Returns the vertex id that contains pnt (or -1 if no one contains it) More...
 
virtual void SetShrinkPercentage (double)
 
virtual double GetShrinkPercentage ()
 
- 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...
 
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)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
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)
 
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)
 
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)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- 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 PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
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...
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkAreaLayoutStrategySafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 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 ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkAreaLayoutStrategy ()
 
 ~vtkAreaLayoutStrategy () 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 ()
 
- 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 ShrinkPercentage
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

abstract superclass for all area layout strategies

All subclasses of this class perform a area layout on a tree. This involves assigning a region to each vertex in the tree, and placing that information in a data array with four components per tuple representing (innerRadius, outerRadius, startAngle, endAngle).

Instances of subclasses of this class may be assigned as the layout strategy to vtkAreaLayout

Thanks:
Thanks to Jason Shepherd from Sandia National Laboratories for help developing this class.

Definition at line 48 of file vtkAreaLayoutStrategy.h.

Member Typedef Documentation

◆ Superclass

Definition at line 51 of file vtkAreaLayoutStrategy.h.

Constructor & Destructor Documentation

◆ vtkAreaLayoutStrategy()

vtkAreaLayoutStrategy::vtkAreaLayoutStrategy ( )
protected

◆ ~vtkAreaLayoutStrategy()

vtkAreaLayoutStrategy::~vtkAreaLayoutStrategy ( )
overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkAreaLayoutStrategy::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 vtkObjectBase.

Reimplemented in vtkTreeMapLayoutStrategy, vtkSquarifyLayoutStrategy, vtkStackedTreeLayoutStrategy, vtkSliceAndDiceLayoutStrategy, and vtkBoxLayoutStrategy.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkAreaLayoutStrategy::NewInstanceInternal ( ) const
protectedvirtual

◆ NewInstance()

vtkAreaLayoutStrategy* vtkAreaLayoutStrategy::NewInstance ( ) const

◆ PrintSelf()

void vtkAreaLayoutStrategy::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 vtkObject.

Reimplemented in vtkTreeMapLayoutStrategy, vtkSquarifyLayoutStrategy, vtkStackedTreeLayoutStrategy, vtkSliceAndDiceLayoutStrategy, and vtkBoxLayoutStrategy.

◆ Layout()

virtual void vtkAreaLayoutStrategy::Layout ( vtkTree inputTree,
vtkDataArray areaArray,
vtkDataArray sizeArray 
)
pure virtual

Perform the layout of the input tree, and store the sector bounds of each vertex as a tuple in a data array.

For radial layout, this is (innerRadius, outerRadius, startAngle, endAngle). For rectangular layout, this is (xmin, xmax, ymin, ymax).

The sizeArray may be nullptr, or may contain the desired size of each vertex in the tree.

Implemented in vtkStackedTreeLayoutStrategy, vtkSquarifyLayoutStrategy, vtkSliceAndDiceLayoutStrategy, and vtkBoxLayoutStrategy.

◆ LayoutEdgePoints()

virtual void vtkAreaLayoutStrategy::LayoutEdgePoints ( vtkTree inputTree,
vtkDataArray areaArray,
vtkDataArray sizeArray,
vtkTree edgeLayoutTree 
)
virtual

Reimplemented in vtkStackedTreeLayoutStrategy.

◆ FindVertex()

virtual vtkIdType vtkAreaLayoutStrategy::FindVertex ( vtkTree tree,
vtkDataArray array,
float  pnt[2] 
)
pure virtual

Returns the vertex id that contains pnt (or -1 if no one contains it)

Implemented in vtkStackedTreeLayoutStrategy, and vtkTreeMapLayoutStrategy.

◆ SetShrinkPercentage()

virtual void vtkAreaLayoutStrategy::SetShrinkPercentage ( double  )
virtual

◆ GetShrinkPercentage()

virtual double vtkAreaLayoutStrategy::GetShrinkPercentage ( )
virtual

Member Data Documentation

◆ ShrinkPercentage

double vtkAreaLayoutStrategy::ShrinkPercentage
protected

Definition at line 92 of file vtkAreaLayoutStrategy.h.


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