merges any number of vtkDataSets back into a single vtkUnstructuredGrid More...
#include <vtkMergeCells.h>
Public Types | |
| typedef vtkObject | Superclass |
 Public Types inherited from vtkObject | |
| typedef vtkObjectBase | Superclass |
Public Member Functions | |
| virtual int | IsA (const char *type) |
| vtkMergeCells * | NewInstance () const |
| virtual void | PrintSelf (ostream &os, vtkIndent indent) |
| virtual void | SetUnstructuredGrid (vtkUnstructuredGrid *) |
| virtual vtkUnstructuredGrid * | GetUnstructuredGrid () |
| virtual void | SetTotalNumberOfCells (vtkIdType) |
| virtual vtkIdType | GetTotalNumberOfCells () |
| virtual void | SetTotalNumberOfPoints (vtkIdType) |
| virtual vtkIdType | GetTotalNumberOfPoints () |
| virtual void | SetUseGlobalIds (int) |
| virtual int | GetUseGlobalIds () |
| virtual void | SetPointMergeTolerance (float) |
| virtual float | GetPointMergeTolerance () |
| virtual void | SetUseGlobalCellIds (int) |
| virtual int | GetUseGlobalCellIds () |
| virtual void | SetMergeDuplicatePoints (int) |
| virtual int | GetMergeDuplicatePoints () |
| virtual void | MergeDuplicatePointsOn () |
| virtual void | MergeDuplicatePointsOff () |
| virtual void | SetTotalNumberOfDataSets (int) |
| virtual int | GetTotalNumberOfDataSets () |
| int | MergeDataSet (vtkDataSet *set) |
| void | Finish () |
| Public Member Functions inherited from vtkObject | |
| vtkObject * | NewInstance () const |
| virtual void | DebugOn () |
| virtual void | DebugOff () |
| bool | GetDebug () |
| void | SetDebug (bool debugFlag) |
| virtual void | Modified () |
| virtual unsigned long | GetMTime () |
| unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| vtkCommand * | GetCommand (unsigned long tag) |
| void | RemoveObserver (vtkCommand *) |
| void | RemoveObservers (unsigned long event, vtkCommand *) |
| void | RemoveObservers (const char *event, vtkCommand *) |
| int | HasObserver (unsigned long event, vtkCommand *) |
| int | HasObserver (const char *event, vtkCommand *) |
| void | RemoveObserver (unsigned long tag) |
| void | RemoveObservers (unsigned long event) |
| void | RemoveObservers (const char *event) |
| void | RemoveAllObservers () |
| int | HasObserver (unsigned long event) |
| int | HasObserver (const char *event) |
| template<class U , class T > | |
| unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
| 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) |
| int | InvokeEvent (unsigned long event, void *callData) |
| 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 |
| virtual void | Delete () |
| virtual void | FastDelete () |
| void | Print (ostream &os) |
| virtual void | Register (vtkObjectBase *o) |
| virtual void | UnRegister (vtkObjectBase *o) |
| void | SetReferenceCount (int) |
| void | PrintRevisions (ostream &) |
| virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| int | GetReferenceCount () |
Static Public Member Functions | |
| static int | IsTypeOf (const char *type) |
| static vtkMergeCells * | SafeDownCast (vtkObjectBase *o) |
| static vtkMergeCells * | New () |
| Static Public Member Functions inherited from vtkObject | |
| static int | IsTypeOf (const char *type) |
| static vtkObject * | SafeDownCast (vtkObjectBase *o) |
| static vtkObject * | New () |
| static void | BreakOnError () |
| static void | SetGlobalWarningDisplay (int val) |
| static void | GlobalWarningDisplayOn () |
| static void | GlobalWarningDisplayOff () |
| static int | GetGlobalWarningDisplay () |
| Static Public Member Functions inherited from vtkObjectBase | |
| static int | IsTypeOf (const char *name) |
| static vtkObjectBase * | New () |
Protected Member Functions | |
| virtual vtkObjectBase * | NewInstanceInternal () const |
| vtkMergeCells () | |
| ~vtkMergeCells () | |
| Protected Member Functions inherited from vtkObject | |
| vtkObject () | |
| virtual | ~vtkObject () |
| virtual void | RegisterInternal (vtkObjectBase *, int check) |
| virtual void | UnRegisterInternal (vtkObjectBase *, int check) |
| void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL) |
| 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 &) |
Additional Inherited Members | |
| Protected Attributes inherited from vtkObject | |
| bool | Debug |
| vtkTimeStamp | MTime |
| vtkSubjectHelper * | SubjectHelper |
| Protected Attributes inherited from vtkObjectBase | |
| vtkAtomicInt32 | ReferenceCount |
| vtkWeakPointerBase ** | WeakPointers |
Detailed Description
merges any number of vtkDataSets back into a single vtkUnstructuredGrid
Designed to work with distributed vtkDataSets, this class will take vtkDataSets and merge them back into a single vtkUnstructuredGrid.
The vtkPoints object of the unstructured grid will have data type VTK_FLOAT, regardless of the data type of the points of the input vtkDataSets. If this is a problem, someone must let me know.
It is assumed the different DataSets have the same field arrays. If the name of a global point ID array is provided, this class will refrain from including duplicate points in the merged Ugrid. This class differs from vtkAppendFilter in these ways: (1) it uses less memory than that class (which uses memory equal to twice the size of the final Ugrid) but requires that you know the size of the final Ugrid in advance (2) this class assumes the individual DataSets have the same field arrays, while vtkAppendFilter intersects the field arrays (3) this class knows duplicate points may be appearing in the DataSets and can filter those out, (4) this class is not a filter.
Definition at line 57 of file vtkMergeCells.h.
Member Typedef Documentation
| typedef vtkObject vtkMergeCells::Superclass |
Definition at line 60 of file vtkMergeCells.h.
Constructor & Destructor Documentation
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Member Function Documentation
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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 vtkObject.
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Reimplemented from vtkObject.
| vtkMergeCells* vtkMergeCells::NewInstance | ( | ) | const |
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Set the vtkUnstructuredGrid object that will become the union of the DataSets specified in MergeDataSet calls. vtkMergeCells assumes this grid is empty at first.
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Specify the total number of cells in the final vtkUnstructuredGrid. Make this call before any call to MergeDataSet().
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Specify the total number of points in the final vtkUnstructuredGrid Make this call before any call to MergeDataSet(). This is an upper bound, since some points may be duplicates.
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vtkMergeCells attempts eliminate duplicate points when merging data sets. This is done most efficiently if a global point ID field array is available. Set the name of the point array if you have one.
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vtkMergeCells attempts eliminate duplicate points when merging data sets. If no global point ID field array name is provided, it will use a point locator to find duplicate points. You can set a tolerance for that locator here. The default tolerance is 10e-4.
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vtkMergeCells will detect and filter out duplicate cells if you provide it the name of a global cell ID array.
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vtkMergeCells attempts eliminate duplicate points when merging data sets. If for some reason you don't want it to do this, than MergeDuplicatePointsOff().
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We need to know the number of different data sets that will be merged into one so we can pre-allocate some arrays. This can be an upper bound, not necessarily exact.
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| int vtkMergeCells::MergeDataSet | ( | vtkDataSet * | set | ) |
Provide a DataSet to be merged in to the final UnstructuredGrid. This call returns after the merge has completed. Be sure to call SetTotalNumberOfCells, SetTotalNumberOfPoints, and SetTotalNumberOfDataSets before making this call. Return 0 if OK, -1 if error.
| void vtkMergeCells::Finish | ( | ) |
Call Finish() after merging last DataSet to free unneeded memory and to make sure the ugrid's GetNumberOfPoints() reflects the actual number of points set, not the number allocated.
The documentation for this class was generated from the following file:
- dox/Filters/General/vtkMergeCells.h
