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void | ShallowCopy (vtkScalarTree *stree) override |
| This method is used to copy data members when cloning an instance of the class. More...
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void | Initialize () override |
| Initialize the span space. More...
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void | BuildTree () override |
| Construct the scalar tree from the dataset provided. More...
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void | InitTraversal (double scalarValue) override |
| Begin to traverse the cells based on a scalar value. More...
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vtkCell * | GetNextCell (vtkIdType &cellId, vtkIdList *&ptIds, vtkDataArray *cellScalars) override |
| Return the next cell that may contain scalar value specified to InitTraversal(). More...
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vtkIdType | GetNumberOfCellBatches (double scalarValue) override |
| Get the number of cell batches available for processing as a function of the specified scalar value. More...
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const vtkIdType * | GetCellBatch (vtkIdType batchNum, vtkIdType &numCells) override |
| Return the array of cell ids in the specified batch. More...
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virtual void | SetScalarRange (double, double) |
| Specify the scalar range in terms of minimum and maximum values (smin,smax). More...
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void | SetScalarRange (double[2]) |
| Specify the scalar range in terms of minimum and maximum values (smin,smax). More...
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virtual double * | GetScalarRange () |
| Specify the scalar range in terms of minimum and maximum values (smin,smax). More...
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virtual void | GetScalarRange (double data[2]) |
| Specify the scalar range in terms of minimum and maximum values (smin,smax). More...
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virtual void | SetComputeScalarRange (vtkTypeBool) |
| This boolean controls whether the determination of the scalar range is computed from the input scalar data. More...
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virtual vtkTypeBool | GetComputeScalarRange () |
| This boolean controls whether the determination of the scalar range is computed from the input scalar data. More...
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virtual void | ComputeScalarRangeOn () |
| This boolean controls whether the determination of the scalar range is computed from the input scalar data. More...
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virtual void | ComputeScalarRangeOff () |
| This boolean controls whether the determination of the scalar range is computed from the input scalar data. More...
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virtual void | SetResolution (vtkIdType) |
| Set/Get the resolution N of the span space. More...
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virtual vtkIdType | GetResolution () |
| Set/Get the resolution N of the span space. More...
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virtual void | SetComputeResolution (vtkTypeBool) |
| Boolean controls whether the resolution of span space is computed automatically from the average number of cells falling in each bucket. More...
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virtual vtkTypeBool | GetComputeResolution () |
| Boolean controls whether the resolution of span space is computed automatically from the average number of cells falling in each bucket. More...
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virtual void | ComputeResolutionOn () |
| Boolean controls whether the resolution of span space is computed automatically from the average number of cells falling in each bucket. More...
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virtual void | ComputeResolutionOff () |
| Boolean controls whether the resolution of span space is computed automatically from the average number of cells falling in each bucket. More...
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virtual void | SetNumberOfCellsPerBucket (int) |
| Specify the average number of cells in each bucket. More...
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virtual int | GetNumberOfCellsPerBucket () |
| Specify the average number of cells in each bucket. More...
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virtual void | SetBatchSize (vtkIdType) |
| Set/Get the size of the cell batches when processing in parallel. More...
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virtual vtkIdType | GetBatchSize () |
| Set/Get the size of the cell batches when processing in parallel. More...
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virtual void | ShallowCopy (vtkScalarTree *stree) |
| This method is used to copy data members when cloning an instance of the class. More...
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virtual void | BuildTree ()=0 |
| Construct the scalar tree from the dataset provided. More...
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virtual void | Initialize ()=0 |
| Initialize locator. More...
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virtual void | InitTraversal (double scalarValue)=0 |
| Begin to traverse the cells based on a scalar value (serial traversal). More...
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virtual vtkCell * | GetNextCell (vtkIdType &cellId, vtkIdList *&ptIds, vtkDataArray *cellScalars)=0 |
| Return the next cell that may contain scalar value specified to InitTraversal() (serial traversal). More...
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double | GetScalarValue () |
| Return the current scalar value over which tree traversal is proceeding. More...
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virtual vtkIdType | GetNumberOfCellBatches (double scalarValue)=0 |
| Get the number of cell batches available for processing as a function of the specified scalar value. More...
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virtual const vtkIdType * | GetCellBatch (vtkIdType batchNum, vtkIdType &numCells)=0 |
| Return the array of cell ids in the specified batch. More...
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virtual void | SetDataSet (vtkDataSet *) |
| Build the tree from the points/cells and scalars defining this dataset. More...
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virtual vtkDataSet * | GetDataSet () |
| Build the tree from the points/cells and scalars defining this dataset. More...
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virtual void | SetScalars (vtkDataArray *) |
| Build the tree from the points/cells and scalars defining the dataset and scalars provided. More...
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virtual vtkDataArray * | GetScalars () |
| Build the tree from the points/cells and scalars defining the dataset and scalars provided. More...
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vtkScalarTree * | NewInstance () const |
| Standard type related macros and PrintSelf() method. More...
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on. More...
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virtual void | DebugOff () |
| Turn debugging output off. More...
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bool | GetDebug () |
| Get the value of the debug flag. More...
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
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virtual void | Modified () |
| Update the modification time for this object. More...
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time. More...
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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void | RemoveAllObservers () |
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vtkTypeBool | HasObserver (unsigned long event) |
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vtkTypeBool | HasObserver (const char *event) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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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...
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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...
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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...
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int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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int | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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const char * | GetClassName () const |
| Return the class name as a string. More...
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virtual vtkTypeBool | IsA (const char *name) |
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
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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). More...
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virtual void | Delete () |
| Delete a VTK object. More...
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virtual void | FastDelete () |
| Delete a reference to this object. More...
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream. More...
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virtual void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object). More...
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object). More...
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int | GetReferenceCount () |
| Return the current reference count of this object. More...
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void | SetReferenceCount (int) |
| Sets the reference count. More...
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bool | GetIsInMemkind () const |
| A local state flag that remembers whether this object lives in the normal or extended memory space. More...
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
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static vtkSpanSpace * | New () |
| Instantiate a scalar tree with default resolution of 100 and automatic scalar range computation. More...
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static vtkTypeBool | IsTypeOf (const char *type) |
| Standard type related macros and PrintSelf() method. More...
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static vtkScalarTree * | SafeDownCast (vtkObjectBase *o) |
| Standard type related macros and PrintSelf() method. More...
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static vtkObject * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
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static void | BreakOnError () |
| This method is called when vtkErrorMacro executes. More...
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static void | SetGlobalWarningDisplay (int val) |
| This is a global flag that controls whether any debug, warning or error messages are displayed. More...
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static void | GlobalWarningDisplayOn () |
| This is a global flag that controls whether any debug, warning or error messages are displayed. More...
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static void | GlobalWarningDisplayOff () |
| This is a global flag that controls whether any debug, warning or error messages are displayed. More...
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static int | GetGlobalWarningDisplay () |
| This is a global flag that controls whether any debug, warning or error messages are displayed. More...
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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. More...
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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). More...
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static vtkObjectBase * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
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static void | SetMemkindDirectory (const char *directoryname) |
| The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...
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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. More...
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organize data according to scalar span space
This is a helper class used to accelerate contouring operations. Given an dataset, it organizes the dataset cells into a 2D binned space, with coordinate axes (scalar_min,scalar_max). This so-called span space can then be traversed quickly to find the cells that intersect a specified contour value.
This class has an API that supports both serial and parallel operation. The parallel API enables the using class to grab arrays (or batches) of cells that lie along a particular row in the span space. These arrays can then be processed separately or in parallel.
Learn more about span space in these two publications: 1) "A Near
Optimal Isosorface Extraction Algorithm Using the Span Space." Yarden Livnat et al. and 2) Isosurfacing in Span Space with Utmost Efficiency." Han-Wei Shen et al.
- See also
- vtkScalarTree vtkSimpleScalarTree
Definition at line 48 of file vtkSpanSpace.h.