VTK  9.1.20211115
Classes | Protected Member Functions | Protected Attributes | List of all members
vtkQuadricClustering Class Reference

reduce the number of triangles in a mesh More...

#include <vtkQuadricClustering.h>

Inheritance diagram for vtkQuadricClustering:
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Collaboration diagram for vtkQuadricClustering:
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Classes

struct  PointQuadric
 

Public Member Functions

void SetNumberOfXDivisions (int num)
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
void SetNumberOfYDivisions (int num)
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
void SetNumberOfZDivisions (int num)
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
virtual int GetNumberOfXDivisions ()
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
virtual int GetNumberOfYDivisions ()
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
virtual int GetNumberOfZDivisions ()
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
void SetNumberOfDivisions (int div[3])
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
void SetNumberOfDivisions (int div0, int div1, int div2)
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
int * GetNumberOfDivisions ()
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
void GetNumberOfDivisions (int div[3])
 Set/Get the number of divisions along each axis for the spatial bins. More...
 
virtual void SetAutoAdjustNumberOfDivisions (vtkTypeBool)
 Enable automatic adjustment of number of divisions. More...
 
virtual vtkTypeBool GetAutoAdjustNumberOfDivisions ()
 Enable automatic adjustment of number of divisions. More...
 
virtual void AutoAdjustNumberOfDivisionsOn ()
 Enable automatic adjustment of number of divisions. More...
 
virtual void AutoAdjustNumberOfDivisionsOff ()
 Enable automatic adjustment of number of divisions. More...
 
void SetDivisionOrigin (double x, double y, double z)
 This is an alternative way to set up the bins. More...
 
void SetDivisionOrigin (double o[3])
 This is an alternative way to set up the bins. More...
 
virtual double * GetDivisionOrigin ()
 This is an alternative way to set up the bins. More...
 
virtual void GetDivisionOrigin (double &, double &, double &)
 This is an alternative way to set up the bins. More...
 
virtual void GetDivisionOrigin (double[3])
 This is an alternative way to set up the bins. More...
 
void SetDivisionSpacing (double x, double y, double z)
 This is an alternative way to set up the bins. More...
 
void SetDivisionSpacing (double s[3])
 This is an alternative way to set up the bins. More...
 
virtual double * GetDivisionSpacing ()
 This is an alternative way to set up the bins. More...
 
virtual void GetDivisionSpacing (double &, double &, double &)
 This is an alternative way to set up the bins. More...
 
virtual void GetDivisionSpacing (double[3])
 This is an alternative way to set up the bins. More...
 
virtual void SetUseInputPoints (vtkTypeBool)
 Normally the point that minimizes the quadric error function is used as the output of the bin. More...
 
virtual vtkTypeBool GetUseInputPoints ()
 Normally the point that minimizes the quadric error function is used as the output of the bin. More...
 
virtual void UseInputPointsOn ()
 Normally the point that minimizes the quadric error function is used as the output of the bin. More...
 
virtual void UseInputPointsOff ()
 Normally the point that minimizes the quadric error function is used as the output of the bin. More...
 
virtual void SetUseFeatureEdges (vtkTypeBool)
 By default, this flag is off. More...
 
virtual vtkTypeBool GetUseFeatureEdges ()
 By default, this flag is off. More...
 
virtual void UseFeatureEdgesOn ()
 By default, this flag is off. More...
 
virtual void UseFeatureEdgesOff ()
 By default, this flag is off. More...
 
vtkFeatureEdgesGetFeatureEdges ()
 By default, this flag is off. More...
 
virtual void SetUseFeaturePoints (vtkTypeBool)
 By default, this flag is off. More...
 
virtual vtkTypeBool GetUseFeaturePoints ()
 By default, this flag is off. More...
 
virtual void UseFeaturePointsOn ()
 By default, this flag is off. More...
 
virtual void UseFeaturePointsOff ()
 By default, this flag is off. More...
 
virtual void SetFeaturePointsAngle (double)
 Set/Get the angle to use in determining whether a point on a boundary / feature edge is a feature point. More...
 
virtual double GetFeaturePointsAngle ()
 Set/Get the angle to use in determining whether a point on a boundary / feature edge is a feature point. More...
 
virtual void SetUseInternalTriangles (vtkTypeBool)
 When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics. More...
 
virtual vtkTypeBool GetUseInternalTriangles ()
 When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics. More...
 
virtual void UseInternalTrianglesOn ()
 When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics. More...
 
virtual void UseInternalTrianglesOff ()
 When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics. More...
 
void StartAppend (double *bounds)
 These methods provide an alternative way of executing the filter. More...
 
void StartAppend (double x0, double x1, double y0, double y1, double z0, double z1)
 These methods provide an alternative way of executing the filter. More...
 
void Append (vtkPolyData *piece)
 These methods provide an alternative way of executing the filter. More...
 
void EndAppend ()
 These methods provide an alternative way of executing the filter. More...
 
virtual void SetCopyCellData (vtkTypeBool)
 This flag makes the filter copy cell data from input to output (the best it can). More...
 
virtual vtkTypeBool GetCopyCellData ()
 This flag makes the filter copy cell data from input to output (the best it can). More...
 
virtual void CopyCellDataOn ()
 This flag makes the filter copy cell data from input to output (the best it can). More...
 
virtual void CopyCellDataOff ()
 This flag makes the filter copy cell data from input to output (the best it can). More...
 
virtual void SetPreventDuplicateCells (vtkTypeBool)
 Specify a boolean indicating whether to remove duplicate cells (i.e. More...
 
virtual vtkTypeBool GetPreventDuplicateCells ()
 Specify a boolean indicating whether to remove duplicate cells (i.e. More...
 
virtual void PreventDuplicateCellsOn ()
 Specify a boolean indicating whether to remove duplicate cells (i.e. More...
 
virtual void PreventDuplicateCellsOff ()
 Specify a boolean indicating whether to remove duplicate cells (i.e. More...
 
- Public Member Functions inherited from vtkPolyDataAlgorithm
vtkPolyDataAlgorithmNewInstance () const
 
vtkTypeBool ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
 see vtkAlgorithm for details More...
 
vtkDataObjectGetInput ()
 
vtkDataObjectGetInput (int port)
 
vtkPolyDataGetPolyDataInput (int port)
 
vtkPolyDataGetOutput ()
 Get the output data object for a port on this algorithm. More...
 
vtkPolyDataGetOutput (int)
 Get the output data object for a port on this algorithm. More...
 
virtual void SetOutput (vtkDataObject *d)
 Get the output data object for a port on this algorithm. More...
 
void SetInputData (vtkDataObject *)
 Assign a data object as input. More...
 
void SetInputData (int, vtkDataObject *)
 Assign a data object as input. More...
 
void AddInputData (vtkDataObject *)
 Assign a data object as input. More...
 
void AddInputData (int, vtkDataObject *)
 Assign a data object as input. More...
 
- Public Member Functions inherited from vtkAlgorithm
vtkAlgorithmNewInstance () const
 
int HasExecutive ()
 Check whether this algorithm has an assigned executive. More...
 
vtkExecutiveGetExecutive ()
 Get this algorithm's executive. More...
 
virtual void SetExecutive (vtkExecutive *executive)
 Set this algorithm's executive. More...
 
vtkTypeBool ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo)
 Version of ProcessRequest() that is wrapped. More...
 
virtual int ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime)
 A special version of ProcessRequest meant specifically for the pipeline modified time request. More...
 
virtual int ModifyRequest (vtkInformation *request, int when)
 This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded. More...
 
vtkInformationGetInputPortInformation (int port)
 Get the information object associated with an input port. More...
 
vtkInformationGetOutputPortInformation (int port)
 Get the information object associated with an output port. More...
 
int GetNumberOfInputPorts ()
 Get the number of input ports used by the algorithm. More...
 
int GetNumberOfOutputPorts ()
 Get the number of output ports provided by the algorithm. More...
 
void UpdateProgress (double amount)
 Update the progress of the process object. More...
 
virtual void SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName)
 String based versions of SetInputArrayToProcess(). More...
 
vtkInformationGetInputArrayInformation (int idx)
 Get the info object for the specified input array to this algorithm. More...
 
void RemoveAllInputs ()
 Remove all the input data. More...
 
vtkDataObjectGetOutputDataObject (int port)
 Get the data object that will contain the algorithm output for the given port. More...
 
vtkDataObjectGetInputDataObject (int port, int connection)
 Get the data object that will contain the algorithm input for the given port and given connection. More...
 
virtual void RemoveInputConnection (int port, vtkAlgorithmOutput *input)
 Remove a connection from the given input port index. More...
 
virtual void RemoveInputConnection (int port, int idx)
 Remove a connection given by index idx. More...
 
virtual void RemoveAllInputConnections (int port)
 Removes all input connections. More...
 
virtual void SetInputDataObject (int port, vtkDataObject *data)
 Sets the data-object as an input on the given port index. More...
 
virtual void SetInputDataObject (vtkDataObject *data)
 
virtual void AddInputDataObject (int port, vtkDataObject *data)
 Add the data-object as an input to this given port. More...
 
virtual void AddInputDataObject (vtkDataObject *data)
 
vtkAlgorithmOutputGetOutputPort (int index)
 Get a proxy object corresponding to the given output port of this algorithm. More...
 
vtkAlgorithmOutputGetOutputPort ()
 
int GetNumberOfInputConnections (int port)
 Get the number of inputs currently connected to a port. More...
 
int GetTotalNumberOfInputConnections ()
 Get the total number of inputs for this algorithm. More...
 
vtkAlgorithmOutputGetInputConnection (int port, int index)
 Get the algorithm output port connected to an input port. More...
 
vtkAlgorithmGetInputAlgorithm (int port, int index, int &algPort)
 Returns the algorithm and the output port index of that algorithm connected to a port-index pair. More...
 
vtkAlgorithmGetInputAlgorithm (int port, int index)
 Returns the algorithm connected to a port-index pair. More...
 
vtkAlgorithmGetInputAlgorithm ()
 Equivalent to GetInputAlgorithm(0, 0). More...
 
vtkExecutiveGetInputExecutive (int port, int index)
 Returns the executive associated with a particular input connection. More...
 
vtkExecutiveGetInputExecutive ()
 Equivalent to GetInputExecutive(0, 0) More...
 
vtkInformationGetInputInformation (int port, int index)
 Return the information object that is associated with a particular input connection. More...
 
vtkInformationGetInputInformation ()
 Equivalent to GetInputInformation(0, 0) More...
 
vtkInformationGetOutputInformation (int port)
 Return the information object that is associated with a particular output port. More...
 
virtual vtkTypeBool Update (int port, vtkInformationVector *requests)
 This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date). More...
 
virtual vtkTypeBool Update (vtkInformation *requests)
 Convenience method to update an algorithm after passing requests to its first output port. More...
 
virtual int UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=nullptr)
 Convenience method to update an algorithm after passing requests to its first output port. More...
 
virtual int UpdateExtent (const int extents[6])
 Convenience method to update an algorithm after passing requests to its first output port. More...
 
virtual int UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr)
 Convenience method to update an algorithm after passing requests to its first output port. More...
 
virtual void UpdateInformation ()
 Bring the algorithm's information up-to-date. More...
 
virtual void UpdateDataObject ()
 Create output object(s). More...
 
virtual void PropagateUpdateExtent ()
 Propagate meta-data upstream. More...
 
virtual void UpdateWholeExtent ()
 Bring this algorithm's outputs up-to-date. More...
 
void ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
 Convenience routine to convert from a linear ordering of input connections to a port/connection pair. More...
 
virtual vtkInformationGetInformation ()
 Set/Get the information object associated with this algorithm. More...
 
virtual void SetInformation (vtkInformation *)
 Set/Get the information object associated with this algorithm. More...
 
void Register (vtkObjectBase *o) override
 Participate in garbage collection. More...
 
void UnRegister (vtkObjectBase *o) override
 Participate in garbage collection. More...
 
virtual void SetAbortExecute (vtkTypeBool)
 Set/Get the AbortExecute flag for the process object. More...
 
virtual vtkTypeBool GetAbortExecute ()
 Set/Get the AbortExecute flag for the process object. More...
 
virtual void AbortExecuteOn ()
 Set/Get the AbortExecute flag for the process object. More...
 
virtual void AbortExecuteOff ()
 Set/Get the AbortExecute flag for the process object. More...
 
virtual double GetProgress ()
 Get the execution progress of a process object. More...
 
void SetProgressShiftScale (double shift, double scale)
 Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called. More...
 
virtual double GetProgressShift ()
 Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called. More...
 
virtual double GetProgressScale ()
 Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called. More...
 
void SetProgressText (const char *ptext)
 Set the current text message associated with the progress state. More...
 
virtual char * GetProgressText ()
 Set the current text message associated with the progress state. More...
 
virtual unsigned long GetErrorCode ()
 The error code contains a possible error that occurred while reading or writing the file. More...
 
virtual void SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
 Set the input data arrays that this algorithm will process. More...
 
virtual void SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
 Set the input data arrays that this algorithm will process. More...
 
virtual void SetInputArrayToProcess (int idx, vtkInformation *info)
 Set the input data arrays that this algorithm will process. More...
 
virtual void SetInputConnection (int port, vtkAlgorithmOutput *input)
 Set the connection for the given input port index. More...
 
virtual void SetInputConnection (vtkAlgorithmOutput *input)
 Set the connection for the given input port index. More...
 
virtual void AddInputConnection (int port, vtkAlgorithmOutput *input)
 Add a connection to the given input port index. More...
 
virtual void AddInputConnection (vtkAlgorithmOutput *input)
 Add a connection to the given input port index. More...
 
virtual void Update (int port)
 Bring this algorithm's outputs up-to-date. More...
 
virtual void Update ()
 Bring this algorithm's outputs up-to-date. More...
 
virtual void SetReleaseDataFlag (int)
 Turn release data flag on or off for all output ports. More...
 
virtual int GetReleaseDataFlag ()
 Turn release data flag on or off for all output ports. More...
 
void ReleaseDataFlagOn ()
 Turn release data flag on or off for all output ports. More...
 
void ReleaseDataFlagOff ()
 Turn release data flag on or off for all output ports. More...
 
int UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output)
 This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0. More...
 
int UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
 This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0. More...
 
int * GetUpdateExtent ()
 These functions return the update extent for output ports that use 3D extents. More...
 
int * GetUpdateExtent (int port)
 These functions return the update extent for output ports that use 3D extents. More...
 
void GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
 These functions return the update extent for output ports that use 3D extents. More...
 
void GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
 These functions return the update extent for output ports that use 3D extents. More...
 
void GetUpdateExtent (int extent[6])
 These functions return the update extent for output ports that use 3D extents. More...
 
void GetUpdateExtent (int port, int extent[6])
 These functions return the update extent for output ports that use 3D extents. More...
 
int GetUpdatePiece ()
 These functions return the update extent for output ports that use piece extents. More...
 
int GetUpdatePiece (int port)
 These functions return the update extent for output ports that use piece extents. More...
 
int GetUpdateNumberOfPieces ()
 These functions return the update extent for output ports that use piece extents. More...
 
int GetUpdateNumberOfPieces (int port)
 These functions return the update extent for output ports that use piece extents. More...
 
int GetUpdateGhostLevel ()
 These functions return the update extent for output ports that use piece extents. More...
 
int GetUpdateGhostLevel (int port)
 These functions return the update extent for output ports that use piece extents. More...
 
void SetProgressObserver (vtkProgressObserver *)
 If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
 
virtual vtkProgressObserverGetProgressObserver ()
 If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
 
- 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...
 
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)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
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)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
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)
 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, 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)
 This method invokes an event and return whether the event was aborted or not. More...
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. More...
 
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...
 
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...
 
int GetReferenceCount ()
 Return the current reference count of this object. More...
 
void SetReferenceCount (int)
 Sets the reference count. More...
 
bool GetIsInMemkind () const
 A local state flag that remembers whether this object lives in the normal or extended memory space. More...
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses. More...
 

Protected Member Functions

 vtkQuadricClustering ()
 
 ~vtkQuadricClustering () override
 
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
 This is called by the superclass. More...
 
int FillInputPortInformation (int, vtkInformation *) override
 Fill the input port information objects for this algorithm. More...
 
vtkIdType HashPoint (double point[3])
 Given a point, determine what bin it falls into. More...
 
void ComputeRepresentativePoint (double quadric[9], vtkIdType binId, double point[3])
 Determine the representative point for this bin. More...
 
void InitializeQuadric (double quadric[9])
 Initialize the quadric matrix to 0's. More...
 
void AddQuadric (vtkIdType binId, double quadric[9])
 Add this quadric to the quadric already associated with this bin. More...
 
void FindFeaturePoints (vtkCellArray *edges, vtkPoints *edgePts, double angle)
 Find the feature points of a given set of edges. More...
 
void EndAppendVertexGeometry (vtkPolyData *input, vtkPolyData *output)
 This method sets the vertices of the output. More...
 
void AppendFeatureQuadrics (vtkPolyData *pd, vtkPolyData *output)
 
void AddPolygons (vtkCellArray *polys, vtkPoints *points, int geometryFlag, vtkPolyData *input, vtkPolyData *output)
 Add triangles to the quadric array. More...
 
void AddStrips (vtkCellArray *strips, vtkPoints *points, int geometryFlag, vtkPolyData *input, vtkPolyData *output)
 Add triangles to the quadric array. More...
 
void AddTriangle (vtkIdType *binIds, double *pt0, double *pt1, double *pt2, int geometeryFlag, vtkPolyData *input, vtkPolyData *output)
 Add triangles to the quadric array. More...
 
void AddEdges (vtkCellArray *edges, vtkPoints *points, int geometryFlag, vtkPolyData *input, vtkPolyData *output)
 Add edges to the quadric array. More...
 
void AddEdge (vtkIdType *binIds, double *pt0, double *pt1, int geometeryFlag, vtkPolyData *input, vtkPolyData *output)
 Add edges to the quadric array. More...
 
void AddVertices (vtkCellArray *verts, vtkPoints *points, int geometryFlag, vtkPolyData *input, vtkPolyData *output)
 Add vertices to the quadric array. More...
 
void AddVertex (vtkIdType binId, double *pt, int geometryFlag, vtkPolyData *input, vtkPolyData *output)
 Add vertices to the quadric array. More...
 
- Protected Member Functions inherited from vtkPolyDataAlgorithm
 vtkPolyDataAlgorithm ()
 
 ~vtkPolyDataAlgorithm () override
 
virtual int RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
 
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 This is called by the superclass. More...
 
int FillOutputPortInformation (int port, vtkInformation *info) override
 Fill the output port information objects for this algorithm. More...
 
- Protected Member Functions inherited from vtkAlgorithm
 vtkAlgorithm ()
 
 ~vtkAlgorithm () override
 
virtual void SetNumberOfInputPorts (int n)
 Set the number of input ports used by the algorithm. More...
 
virtual void SetNumberOfOutputPorts (int n)
 Set the number of output ports provided by the algorithm. More...
 
int InputPortIndexInRange (int index, const char *action)
 
int OutputPortIndexInRange (int index, const char *action)
 
int GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
 Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
 
vtkInformationGetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
 This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector. More...
 
virtual vtkExecutiveCreateDefaultExecutive ()
 Create a default executive. More...
 
void ReportReferences (vtkGarbageCollector *) override
 
virtual void SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
 Replace the Nth connection on the given input port. More...
 
virtual void SetNumberOfInputConnections (int port, int n)
 Set the number of input connections on the given input port. More...
 
void SetInputDataInternal (int port, vtkDataObject *input)
 These methods are used by subclasses to implement methods to set data objects directly as input. More...
 
void AddInputDataInternal (int port, vtkDataObject *input)
 
int GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
 Filters that have multiple connections on one port can use this signature. More...
 
int GetInputArrayAssociation (int idx, vtkDataObject *input)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkDataArrayGetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
 Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
 
vtkDataArrayGetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
 Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
 
vtkDataArrayGetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkDataArrayGetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkDataArrayGetInputArrayToProcess (int idx, vtkDataObject *input)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkDataArrayGetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
 Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
 
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
 Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
 
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
 Filters that have multiple connections on one port can use this signature. More...
 
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
 Filters that have multiple connections on one port can use this signature. More...
 
virtual void SetErrorCode (unsigned long)
 The error code contains a possible error that occurred while reading or writing the file. More...
 
- 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 ()
 These methods allow a command to exclusively grab all events. More...
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

vtkTypeBool UseFeatureEdges
 
vtkTypeBool UseFeaturePoints
 
vtkTypeBool UseInternalTriangles
 
int NumberOfXDivisions
 
int NumberOfYDivisions
 
int NumberOfZDivisions
 
vtkTypeBool PreventDuplicateCells
 
vtkQuadricClusteringCellSet * CellSet
 
vtkIdType NumberOfBins
 
int NumberOfDivisions [3]
 
int ComputeNumberOfDivisions
 
double DivisionOrigin [3]
 
double DivisionSpacing [3]
 
vtkTypeBool AutoAdjustNumberOfDivisions
 
double Bounds [6]
 
double XBinSize
 
double YBinSize
 
double ZBinSize
 
double XBinStep
 
double YBinStep
 
double ZBinStep
 
vtkIdType SliceSize
 
PointQuadricQuadricArray
 
vtkIdType NumberOfBinsUsed
 
vtkCellArrayOutputTriangleArray
 
vtkCellArrayOutputLines
 
vtkFeatureEdgesFeatureEdges
 
vtkPointsFeaturePoints
 
double FeaturePointsAngle
 
vtkTypeBool CopyCellData
 
int InCellCount
 
int OutCellCount
 
- Protected Attributes inherited from vtkAlgorithm
vtkInformationInformation
 
double Progress
 
char * ProgressText
 
vtkProgressObserverProgressObserver
 
unsigned long ErrorCode
 The error code contains a possible error that occurred while reading or writing the file. More...
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 
typedef vtkPolyDataAlgorithm Superclass
 Standard instantiation, type and print methods. More...
 
static vtkQuadricClusteringNew ()
 Standard instantiation, type and print methods. More...
 
static vtkTypeBool IsTypeOf (const char *type)
 Standard instantiation, type and print methods. More...
 
static vtkQuadricClusteringSafeDownCast (vtkObjectBase *o)
 Standard instantiation, type and print methods. More...
 
virtual vtkTypeBool IsA (const char *type)
 Standard instantiation, type and print methods. More...
 
vtkQuadricClusteringNewInstance () const
 Standard instantiation, type and print methods. More...
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Standard instantiation, type and print methods. More...
 
virtual vtkObjectBaseNewInstanceInternal () const
 Standard instantiation, type and print methods. More...
 
vtkTypeBool UseInputPoints
 This method will rep[lace the quadric generated points with the input points with the lowest error. More...
 
void EndAppendUsingPoints (vtkPolyData *input, vtkPolyData *output)
 This method will rep[lace the quadric generated points with the input points with the lowest error. More...
 

Additional Inherited Members

- Public Types inherited from vtkPolyDataAlgorithm
typedef vtkAlgorithm Superclass
 
- Public Types inherited from vtkAlgorithm
enum  DesiredOutputPrecision { SINGLE_PRECISION , DOUBLE_PRECISION , DEFAULT_PRECISION }
 Values used for setting the desired output precision for various algorithms. More...
 
typedef vtkObject Superclass
 
- Static Public Member Functions inherited from vtkPolyDataAlgorithm
static vtkPolyDataAlgorithmNew ()
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkPolyDataAlgorithmSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithmNew ()
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkAlgorithmSafeDownCast (vtkObjectBase *o)
 
static vtkInformationIntegerKeyINPUT_IS_OPTIONAL ()
 Keys used to specify input port requirements. More...
 
static vtkInformationIntegerKeyINPUT_IS_REPEATABLE ()
 
static vtkInformationInformationVectorKeyINPUT_REQUIRED_FIELDS ()
 
static vtkInformationStringVectorKeyINPUT_REQUIRED_DATA_TYPE ()
 
static vtkInformationInformationVectorKeyINPUT_ARRAYS_TO_PROCESS ()
 
static vtkInformationIntegerKeyINPUT_PORT ()
 
static vtkInformationIntegerKeyINPUT_CONNECTION ()
 
static vtkInformationIntegerKeyCAN_PRODUCE_SUB_EXTENT ()
 This key tells the executive that a particular output port is capable of producing an arbitrary subextent of the whole extent. More...
 
static vtkInformationIntegerKeyCAN_HANDLE_PIECE_REQUEST ()
 Key that tells the pipeline that a particular algorithm can or cannot handle piece request. More...
 
static void SetDefaultExecutivePrototype (vtkExecutive *proto)
 If the DefaultExecutivePrototype is set, a copy of it is created in CreateDefaultExecutive() using NewInstance(). More...
 
- 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 ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static int GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
- 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 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...
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 
static void SetMemkindDirectory (const char *directoryname)
 The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...
 
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...
 
- Public Attributes inherited from vtkAlgorithm
vtkTypeBool AbortExecute
 
- Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKeyPORT_REQUIREMENTS_FILLED ()
 
- Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction GetCurrentMallocFunction ()
 
static vtkReallocingFunction GetCurrentReallocFunction ()
 
static vtkFreeingFunction GetCurrentFreeFunction ()
 
static vtkFreeingFunction GetAlternateFreeFunction ()
 
- Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutiveDefaultExecutivePrototype
 

Detailed Description

reduce the number of triangles in a mesh

vtkQuadricClustering is a filter to reduce the number of triangles in a triangle mesh, forming a good approximation to the original geometry. The input to vtkQuadricClustering is a vtkPolyData object, and all types of polygonal data are handled.

The algorithm used is the one described by Peter Lindstrom in his Siggraph 2000 paper, "Out-of-Core Simplification of Large Polygonal Models." The general approach of the algorithm is to cluster vertices in a uniform binning of space, accumulating the quadric of each triangle (pushed out to the triangles vertices) within each bin, and then determining an optimal position for a single vertex in a bin by using the accumulated quadric. In more detail, the algorithm first gets the bounds of the input poly data. It then breaks this bounding volume into a user-specified number of spatial bins. It then reads each triangle from the input and hashes its vertices into these bins. (If this is the first time a bin has been visited, initialize its quadric to the 0 matrix.) The algorithm computes the error quadric for this triangle and adds it to the existing quadric of the bin in which each vertex is contained. Then, if 2 or more vertices of the triangle fall in the same bin, the triangle is dicarded. If the triangle is not discarded, it adds the triangle to the list of output triangles as a list of vertex identifiers. (There is one vertex id per bin.) After all the triangles have been read, the representative vertex for each bin is computed (an optimal location is found) using the quadric for that bin. This determines the spatial location of the vertices of each of the triangles in the output.

To use this filter, specify the divisions defining the spatial subdivision in the x, y, and z directions. You must also specify an input vtkPolyData. Then choose to either 1) use the original points that minimize the quadric error to produce the output triangles or 2) compute an optimal position in each bin to produce the output triangles (recommended and default behavior).

This filter can take multiple inputs. To do this, the user must explicitly call StartAppend, Append (once for each input), and EndAppend. StartAppend sets up the data structure to hold the quadric matrices. Append processes each triangle in the input poly data it was called on, hashes its vertices to the appropriate bins, determines whether to keep this triangle, and updates the appropriate quadric matrices. EndAppend determines the spatial location of each of the representative vertices for the visited bins. While this approach does not fit into the visualization architecture and requires manual control, it has the advantage that extremely large data can be processed in pieces and appended to the filter piece-by-piece.

Warning
This filter can drastically affect topology, i.e., topology is not preserved.
The filter handles input triangle strips and arbitrary polygons. Arbitrary polygons are assumed convex: during insertion they are triangulated using a fan of triangles from the first point in the polygons. If the polygon is concave, this can produce bad results. In this case, use vtkTriangleFilter to triangulate the polygons first.
The filter also treats polylines and vertices.
Note that for certain types of geometry (e.g., a mostly 2D plane with jitter in the normal direction), the decimator can perform badly. In this situation, set the number of bins in the normal direction to one.
vtkBinnedDecimation produces similar results with significant speedup and reduced memory consumption.
See also
vtkQuadricDecimation vtkDecimatePro vtkDecimate vtkQuadricLODActor vtkBinnedDecimation
Online Examples:

Definition at line 120 of file vtkQuadricClustering.h.

Member Typedef Documentation

◆ Superclass

Standard instantiation, type and print methods.

Definition at line 128 of file vtkQuadricClustering.h.

Constructor & Destructor Documentation

◆ vtkQuadricClustering()

vtkQuadricClustering::vtkQuadricClustering ( )
protected

◆ ~vtkQuadricClustering()

vtkQuadricClustering::~vtkQuadricClustering ( )
overrideprotected

Member Function Documentation

◆ New()

static vtkQuadricClustering* vtkQuadricClustering::New ( )
static

Standard instantiation, type and print methods.

◆ IsTypeOf()

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

Standard instantiation, type and print methods.

◆ IsA()

virtual vtkTypeBool vtkQuadricClustering::IsA ( const char *  type)
virtual

Standard instantiation, type and print methods.

Reimplemented from vtkPolyDataAlgorithm.

◆ SafeDownCast()

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

Standard instantiation, type and print methods.

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkQuadricClustering::NewInstanceInternal ( ) const
protectedvirtual

Standard instantiation, type and print methods.

Reimplemented from vtkPolyDataAlgorithm.

◆ NewInstance()

vtkQuadricClustering* vtkQuadricClustering::NewInstance ( ) const

Standard instantiation, type and print methods.

◆ PrintSelf()

void vtkQuadricClustering::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

Standard instantiation, type and print methods.

Reimplemented from vtkPolyDataAlgorithm.

◆ SetNumberOfXDivisions()

void vtkQuadricClustering::SetNumberOfXDivisions ( int  num)

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ SetNumberOfYDivisions()

void vtkQuadricClustering::SetNumberOfYDivisions ( int  num)

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ SetNumberOfZDivisions()

void vtkQuadricClustering::SetNumberOfZDivisions ( int  num)

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ GetNumberOfXDivisions()

virtual int vtkQuadricClustering::GetNumberOfXDivisions ( )
virtual

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ GetNumberOfYDivisions()

virtual int vtkQuadricClustering::GetNumberOfYDivisions ( )
virtual

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ GetNumberOfZDivisions()

virtual int vtkQuadricClustering::GetNumberOfZDivisions ( )
virtual

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ SetNumberOfDivisions() [1/2]

void vtkQuadricClustering::SetNumberOfDivisions ( int  div[3])
inline

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

Definition at line 146 of file vtkQuadricClustering.h.

◆ SetNumberOfDivisions() [2/2]

void vtkQuadricClustering::SetNumberOfDivisions ( int  div0,
int  div1,
int  div2 
)

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ GetNumberOfDivisions() [1/2]

int* vtkQuadricClustering::GetNumberOfDivisions ( )

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ GetNumberOfDivisions() [2/2]

void vtkQuadricClustering::GetNumberOfDivisions ( int  div[3])

Set/Get the number of divisions along each axis for the spatial bins.

The number of spatial bins is NumberOfXDivisions*NumberOfYDivisions* NumberOfZDivisions. The filter may choose to ignore large numbers of divisions if the input has few points and AutoAdjustNumberOfDivisions is enabled.

◆ SetAutoAdjustNumberOfDivisions()

virtual void vtkQuadricClustering::SetAutoAdjustNumberOfDivisions ( vtkTypeBool  )
virtual

Enable automatic adjustment of number of divisions.

If off, the number of divisions specified by the user is always used (as long as it is valid). The default is On

◆ GetAutoAdjustNumberOfDivisions()

virtual vtkTypeBool vtkQuadricClustering::GetAutoAdjustNumberOfDivisions ( )
virtual

Enable automatic adjustment of number of divisions.

If off, the number of divisions specified by the user is always used (as long as it is valid). The default is On

◆ AutoAdjustNumberOfDivisionsOn()

virtual void vtkQuadricClustering::AutoAdjustNumberOfDivisionsOn ( )
virtual

Enable automatic adjustment of number of divisions.

If off, the number of divisions specified by the user is always used (as long as it is valid). The default is On

◆ AutoAdjustNumberOfDivisionsOff()

virtual void vtkQuadricClustering::AutoAdjustNumberOfDivisionsOff ( )
virtual

Enable automatic adjustment of number of divisions.

If off, the number of divisions specified by the user is always used (as long as it is valid). The default is On

◆ SetDivisionOrigin() [1/2]

void vtkQuadricClustering::SetDivisionOrigin ( double  x,
double  y,
double  z 
)

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ SetDivisionOrigin() [2/2]

void vtkQuadricClustering::SetDivisionOrigin ( double  o[3])
inline

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

Definition at line 171 of file vtkQuadricClustering.h.

◆ GetDivisionOrigin() [1/3]

virtual double* vtkQuadricClustering::GetDivisionOrigin ( )
virtual

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ GetDivisionOrigin() [2/3]

virtual void vtkQuadricClustering::GetDivisionOrigin ( double &  ,
double &  ,
double &   
)
virtual

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ GetDivisionOrigin() [3/3]

virtual void vtkQuadricClustering::GetDivisionOrigin ( double  [3])
virtual

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ SetDivisionSpacing() [1/2]

void vtkQuadricClustering::SetDivisionSpacing ( double  x,
double  y,
double  z 
)

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ SetDivisionSpacing() [2/2]

void vtkQuadricClustering::SetDivisionSpacing ( double  s[3])
inline

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

Definition at line 174 of file vtkQuadricClustering.h.

◆ GetDivisionSpacing() [1/3]

virtual double* vtkQuadricClustering::GetDivisionSpacing ( )
virtual

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ GetDivisionSpacing() [2/3]

virtual void vtkQuadricClustering::GetDivisionSpacing ( double &  ,
double &  ,
double &   
)
virtual

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ GetDivisionSpacing() [3/3]

virtual void vtkQuadricClustering::GetDivisionSpacing ( double  [3])
virtual

This is an alternative way to set up the bins.

If you are trying to match boundaries between pieces, then you should use these methods rather than SetNumberOfDivisions. To use these methods, specify the origin and spacing of the spatial binning.

◆ SetUseInputPoints()

virtual void vtkQuadricClustering::SetUseInputPoints ( vtkTypeBool  )
virtual

Normally the point that minimizes the quadric error function is used as the output of the bin.

When this flag is on, the bin point is forced to be one of the points from the input (the one with the smallest error). This option does not work (i.e., input points cannot be used) when the append methods (StartAppend(), Append(), EndAppend()) are being called directly.

◆ GetUseInputPoints()

virtual vtkTypeBool vtkQuadricClustering::GetUseInputPoints ( )
virtual

Normally the point that minimizes the quadric error function is used as the output of the bin.

When this flag is on, the bin point is forced to be one of the points from the input (the one with the smallest error). This option does not work (i.e., input points cannot be used) when the append methods (StartAppend(), Append(), EndAppend()) are being called directly.

◆ UseInputPointsOn()

virtual void vtkQuadricClustering::UseInputPointsOn ( )
virtual

Normally the point that minimizes the quadric error function is used as the output of the bin.

When this flag is on, the bin point is forced to be one of the points from the input (the one with the smallest error). This option does not work (i.e., input points cannot be used) when the append methods (StartAppend(), Append(), EndAppend()) are being called directly.

◆ UseInputPointsOff()

virtual void vtkQuadricClustering::UseInputPointsOff ( )
virtual

Normally the point that minimizes the quadric error function is used as the output of the bin.

When this flag is on, the bin point is forced to be one of the points from the input (the one with the smallest error). This option does not work (i.e., input points cannot be used) when the append methods (StartAppend(), Append(), EndAppend()) are being called directly.

◆ SetUseFeatureEdges()

virtual void vtkQuadricClustering::SetUseFeatureEdges ( vtkTypeBool  )
virtual

By default, this flag is off.

When "UseFeatureEdges" is on, then quadrics are computed for boundary edges/feature edges. They influence the quadrics (position of points), but not the mesh. Which features to use can be controlled by the filter "FeatureEdges".

◆ GetUseFeatureEdges()

virtual vtkTypeBool vtkQuadricClustering::GetUseFeatureEdges ( )
virtual

By default, this flag is off.

When "UseFeatureEdges" is on, then quadrics are computed for boundary edges/feature edges. They influence the quadrics (position of points), but not the mesh. Which features to use can be controlled by the filter "FeatureEdges".

◆ UseFeatureEdgesOn()

virtual void vtkQuadricClustering::UseFeatureEdgesOn ( )
virtual

By default, this flag is off.

When "UseFeatureEdges" is on, then quadrics are computed for boundary edges/feature edges. They influence the quadrics (position of points), but not the mesh. Which features to use can be controlled by the filter "FeatureEdges".

◆ UseFeatureEdgesOff()

virtual void vtkQuadricClustering::UseFeatureEdgesOff ( )
virtual

By default, this flag is off.

When "UseFeatureEdges" is on, then quadrics are computed for boundary edges/feature edges. They influence the quadrics (position of points), but not the mesh. Which features to use can be controlled by the filter "FeatureEdges".

◆ GetFeatureEdges()

vtkFeatureEdges* vtkQuadricClustering::GetFeatureEdges ( )
inline

By default, this flag is off.

When "UseFeatureEdges" is on, then quadrics are computed for boundary edges/feature edges. They influence the quadrics (position of points), but not the mesh. Which features to use can be controlled by the filter "FeatureEdges".

Definition at line 202 of file vtkQuadricClustering.h.

◆ SetUseFeaturePoints()

virtual void vtkQuadricClustering::SetUseFeaturePoints ( vtkTypeBool  )
virtual

By default, this flag is off.

It only has an effect when "UseFeatureEdges" is also on. When "UseFeaturePoints" is on, then quadrics are computed for boundary / feature points used in the boundary / feature edges. They influence the quadrics (position of points), but not the mesh.

◆ GetUseFeaturePoints()

virtual vtkTypeBool vtkQuadricClustering::GetUseFeaturePoints ( )
virtual

By default, this flag is off.

It only has an effect when "UseFeatureEdges" is also on. When "UseFeaturePoints" is on, then quadrics are computed for boundary / feature points used in the boundary / feature edges. They influence the quadrics (position of points), but not the mesh.

◆ UseFeaturePointsOn()

virtual void vtkQuadricClustering::UseFeaturePointsOn ( )
virtual

By default, this flag is off.

It only has an effect when "UseFeatureEdges" is also on. When "UseFeaturePoints" is on, then quadrics are computed for boundary / feature points used in the boundary / feature edges. They influence the quadrics (position of points), but not the mesh.

◆ UseFeaturePointsOff()

virtual void vtkQuadricClustering::UseFeaturePointsOff ( )
virtual

By default, this flag is off.

It only has an effect when "UseFeatureEdges" is also on. When "UseFeaturePoints" is on, then quadrics are computed for boundary / feature points used in the boundary / feature edges. They influence the quadrics (position of points), but not the mesh.

◆ SetFeaturePointsAngle()

virtual void vtkQuadricClustering::SetFeaturePointsAngle ( double  )
virtual

Set/Get the angle to use in determining whether a point on a boundary / feature edge is a feature point.

◆ GetFeaturePointsAngle()

virtual double vtkQuadricClustering::GetFeaturePointsAngle ( )
virtual

Set/Get the angle to use in determining whether a point on a boundary / feature edge is a feature point.

◆ SetUseInternalTriangles()

virtual void vtkQuadricClustering::SetUseInternalTriangles ( vtkTypeBool  )
virtual

When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics.

When the the flag is off the filter operates faster, but the surface may not be as well behaved.

◆ GetUseInternalTriangles()

virtual vtkTypeBool vtkQuadricClustering::GetUseInternalTriangles ( )
virtual

When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics.

When the the flag is off the filter operates faster, but the surface may not be as well behaved.

◆ UseInternalTrianglesOn()

virtual void vtkQuadricClustering::UseInternalTrianglesOn ( )
virtual

When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics.

When the the flag is off the filter operates faster, but the surface may not be as well behaved.

◆ UseInternalTrianglesOff()

virtual void vtkQuadricClustering::UseInternalTrianglesOff ( )
virtual

When this flag is on (and it is on by default), then triangles that are completely contained in a bin are added to the bin quadrics.

When the the flag is off the filter operates faster, but the surface may not be as well behaved.

◆ StartAppend() [1/2]

void vtkQuadricClustering::StartAppend ( double *  bounds)

These methods provide an alternative way of executing the filter.

PolyData can be added to the result in pieces (append). In this mode, the user must specify the bounds of the entire model as an argument to the "StartAppend" method.

◆ StartAppend() [2/2]

void vtkQuadricClustering::StartAppend ( double  x0,
double  x1,
double  y0,
double  y1,
double  z0,
double  z1 
)
inline

These methods provide an alternative way of executing the filter.

PolyData can be added to the result in pieces (append). In this mode, the user must specify the bounds of the entire model as an argument to the "StartAppend" method.

Definition at line 247 of file vtkQuadricClustering.h.

◆ Append()

void vtkQuadricClustering::Append ( vtkPolyData piece)

These methods provide an alternative way of executing the filter.

PolyData can be added to the result in pieces (append). In this mode, the user must specify the bounds of the entire model as an argument to the "StartAppend" method.

◆ EndAppend()

void vtkQuadricClustering::EndAppend ( )

These methods provide an alternative way of executing the filter.

PolyData can be added to the result in pieces (append). In this mode, the user must specify the bounds of the entire model as an argument to the "StartAppend" method.

◆ SetCopyCellData()

virtual void vtkQuadricClustering::SetCopyCellData ( vtkTypeBool  )
virtual

This flag makes the filter copy cell data from input to output (the best it can).

It uses input cells that trigger the addition of output cells (no averaging). This is off by default, and does not work when append is being called explicitly (non-pipeline usage).

◆ GetCopyCellData()

virtual vtkTypeBool vtkQuadricClustering::GetCopyCellData ( )
virtual

This flag makes the filter copy cell data from input to output (the best it can).

It uses input cells that trigger the addition of output cells (no averaging). This is off by default, and does not work when append is being called explicitly (non-pipeline usage).

◆ CopyCellDataOn()

virtual void vtkQuadricClustering::CopyCellDataOn ( )
virtual

This flag makes the filter copy cell data from input to output (the best it can).

It uses input cells that trigger the addition of output cells (no averaging). This is off by default, and does not work when append is being called explicitly (non-pipeline usage).

◆ CopyCellDataOff()

virtual void vtkQuadricClustering::CopyCellDataOff ( )
virtual

This flag makes the filter copy cell data from input to output (the best it can).

It uses input cells that trigger the addition of output cells (no averaging). This is off by default, and does not work when append is being called explicitly (non-pipeline usage).

◆ SetPreventDuplicateCells()

virtual void vtkQuadricClustering::SetPreventDuplicateCells ( vtkTypeBool  )
virtual

Specify a boolean indicating whether to remove duplicate cells (i.e.

triangles). This is a little slower, and takes more memory, but in some cases can reduce the number of cells produced by an order of magnitude. By default, this flag is true.

◆ GetPreventDuplicateCells()

virtual vtkTypeBool vtkQuadricClustering::GetPreventDuplicateCells ( )
virtual

Specify a boolean indicating whether to remove duplicate cells (i.e.

triangles). This is a little slower, and takes more memory, but in some cases can reduce the number of cells produced by an order of magnitude. By default, this flag is true.

◆ PreventDuplicateCellsOn()

virtual void vtkQuadricClustering::PreventDuplicateCellsOn ( )
virtual

Specify a boolean indicating whether to remove duplicate cells (i.e.

triangles). This is a little slower, and takes more memory, but in some cases can reduce the number of cells produced by an order of magnitude. By default, this flag is true.

◆ PreventDuplicateCellsOff()

virtual void vtkQuadricClustering::PreventDuplicateCellsOff ( )
virtual

Specify a boolean indicating whether to remove duplicate cells (i.e.

triangles). This is a little slower, and takes more memory, but in some cases can reduce the number of cells produced by an order of magnitude. By default, this flag is true.

◆ RequestData()

int vtkQuadricClustering::RequestData ( vtkInformation request,
vtkInformationVector **  inputVector,
vtkInformationVector outputVector 
)
overrideprotectedvirtual

This is called by the superclass.

This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

◆ FillInputPortInformation()

int vtkQuadricClustering::FillInputPortInformation ( int  port,
vtkInformation info 
)
overrideprotectedvirtual

Fill the input port information objects for this algorithm.

This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkPolyDataAlgorithm.

◆ HashPoint()

vtkIdType vtkQuadricClustering::HashPoint ( double  point[3])
protected

Given a point, determine what bin it falls into.

◆ ComputeRepresentativePoint()

void vtkQuadricClustering::ComputeRepresentativePoint ( double  quadric[9],
vtkIdType  binId,
double  point[3] 
)
protected

Determine the representative point for this bin.

◆ AddPolygons()

void vtkQuadricClustering::AddPolygons ( vtkCellArray polys,
vtkPoints points,
int  geometryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add triangles to the quadric array.

If geometry flag is on then triangles are added to the output.

◆ AddStrips()

void vtkQuadricClustering::AddStrips ( vtkCellArray strips,
vtkPoints points,
int  geometryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add triangles to the quadric array.

If geometry flag is on then triangles are added to the output.

◆ AddTriangle()

void vtkQuadricClustering::AddTriangle ( vtkIdType binIds,
double *  pt0,
double *  pt1,
double *  pt2,
int  geometeryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add triangles to the quadric array.

If geometry flag is on then triangles are added to the output.

◆ AddEdges()

void vtkQuadricClustering::AddEdges ( vtkCellArray edges,
vtkPoints points,
int  geometryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add edges to the quadric array.

If geometry flag is on then edges are added to the output.

◆ AddEdge()

void vtkQuadricClustering::AddEdge ( vtkIdType binIds,
double *  pt0,
double *  pt1,
int  geometeryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add edges to the quadric array.

If geometry flag is on then edges are added to the output.

◆ AddVertices()

void vtkQuadricClustering::AddVertices ( vtkCellArray verts,
vtkPoints points,
int  geometryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add vertices to the quadric array.

If geometry flag is on then vertices are added to the output.

◆ AddVertex()

void vtkQuadricClustering::AddVertex ( vtkIdType  binId,
double *  pt,
int  geometryFlag,
vtkPolyData input,
vtkPolyData output 
)
protected

Add vertices to the quadric array.

If geometry flag is on then vertices are added to the output.

◆ InitializeQuadric()

void vtkQuadricClustering::InitializeQuadric ( double  quadric[9])
protected

Initialize the quadric matrix to 0's.

◆ AddQuadric()

void vtkQuadricClustering::AddQuadric ( vtkIdType  binId,
double  quadric[9] 
)
protected

Add this quadric to the quadric already associated with this bin.

◆ FindFeaturePoints()

void vtkQuadricClustering::FindFeaturePoints ( vtkCellArray edges,
vtkPoints edgePts,
double  angle 
)
protected

Find the feature points of a given set of edges.

The points returned are (1) those used by only one edge, (2) those used by > 2 edges, and (3) those where the angle between 2 edges using this point is < angle.

◆ EndAppendUsingPoints()

void vtkQuadricClustering::EndAppendUsingPoints ( vtkPolyData input,
vtkPolyData output 
)
protected

This method will rep[lace the quadric generated points with the input points with the lowest error.

◆ EndAppendVertexGeometry()

void vtkQuadricClustering::EndAppendVertexGeometry ( vtkPolyData input,
vtkPolyData output 
)
protected

This method sets the vertices of the output.

It duplicates the structure of the input cells (but decimiated).

◆ AppendFeatureQuadrics()

void vtkQuadricClustering::AppendFeatureQuadrics ( vtkPolyData pd,
vtkPolyData output 
)
protected

Member Data Documentation

◆ UseInputPoints

vtkTypeBool vtkQuadricClustering::UseInputPoints
protected

This method will rep[lace the quadric generated points with the input points with the lowest error.

Definition at line 362 of file vtkQuadricClustering.h.

◆ UseFeatureEdges

vtkTypeBool vtkQuadricClustering::UseFeatureEdges
protected

Definition at line 373 of file vtkQuadricClustering.h.

◆ UseFeaturePoints

vtkTypeBool vtkQuadricClustering::UseFeaturePoints
protected

Definition at line 374 of file vtkQuadricClustering.h.

◆ UseInternalTriangles

vtkTypeBool vtkQuadricClustering::UseInternalTriangles
protected

Definition at line 375 of file vtkQuadricClustering.h.

◆ NumberOfXDivisions

int vtkQuadricClustering::NumberOfXDivisions
protected

Definition at line 377 of file vtkQuadricClustering.h.

◆ NumberOfYDivisions

int vtkQuadricClustering::NumberOfYDivisions
protected

Definition at line 378 of file vtkQuadricClustering.h.

◆ NumberOfZDivisions

int vtkQuadricClustering::NumberOfZDivisions
protected

Definition at line 379 of file vtkQuadricClustering.h.

◆ PreventDuplicateCells

vtkTypeBool vtkQuadricClustering::PreventDuplicateCells
protected

Definition at line 382 of file vtkQuadricClustering.h.

◆ CellSet

vtkQuadricClusteringCellSet* vtkQuadricClustering::CellSet
protected

Definition at line 383 of file vtkQuadricClustering.h.

◆ NumberOfBins

vtkIdType vtkQuadricClustering::NumberOfBins
protected

Definition at line 384 of file vtkQuadricClustering.h.

◆ NumberOfDivisions

int vtkQuadricClustering::NumberOfDivisions[3]
protected

Definition at line 388 of file vtkQuadricClustering.h.

◆ ComputeNumberOfDivisions

int vtkQuadricClustering::ComputeNumberOfDivisions
protected

Definition at line 393 of file vtkQuadricClustering.h.

◆ DivisionOrigin

double vtkQuadricClustering::DivisionOrigin[3]
protected

Definition at line 395 of file vtkQuadricClustering.h.

◆ DivisionSpacing

double vtkQuadricClustering::DivisionSpacing[3]
protected

Definition at line 396 of file vtkQuadricClustering.h.

◆ AutoAdjustNumberOfDivisions

vtkTypeBool vtkQuadricClustering::AutoAdjustNumberOfDivisions
protected

Definition at line 397 of file vtkQuadricClustering.h.

◆ Bounds

double vtkQuadricClustering::Bounds[6]
protected

Definition at line 399 of file vtkQuadricClustering.h.

◆ XBinSize

double vtkQuadricClustering::XBinSize
protected

Definition at line 400 of file vtkQuadricClustering.h.

◆ YBinSize

double vtkQuadricClustering::YBinSize
protected

Definition at line 401 of file vtkQuadricClustering.h.

◆ ZBinSize

double vtkQuadricClustering::ZBinSize
protected

Definition at line 402 of file vtkQuadricClustering.h.

◆ XBinStep

double vtkQuadricClustering::XBinStep
protected

Definition at line 403 of file vtkQuadricClustering.h.

◆ YBinStep

double vtkQuadricClustering::YBinStep
protected

Definition at line 404 of file vtkQuadricClustering.h.

◆ ZBinStep

double vtkQuadricClustering::ZBinStep
protected

Definition at line 405 of file vtkQuadricClustering.h.

◆ SliceSize

vtkIdType vtkQuadricClustering::SliceSize
protected

Definition at line 406 of file vtkQuadricClustering.h.

◆ QuadricArray

PointQuadric* vtkQuadricClustering::QuadricArray
protected

Definition at line 424 of file vtkQuadricClustering.h.

◆ NumberOfBinsUsed

vtkIdType vtkQuadricClustering::NumberOfBinsUsed
protected

Definition at line 425 of file vtkQuadricClustering.h.

◆ OutputTriangleArray

vtkCellArray* vtkQuadricClustering::OutputTriangleArray
protected

Definition at line 429 of file vtkQuadricClustering.h.

◆ OutputLines

vtkCellArray* vtkQuadricClustering::OutputLines
protected

Definition at line 430 of file vtkQuadricClustering.h.

◆ FeatureEdges

vtkFeatureEdges* vtkQuadricClustering::FeatureEdges
protected

Definition at line 432 of file vtkQuadricClustering.h.

◆ FeaturePoints

vtkPoints* vtkQuadricClustering::FeaturePoints
protected

Definition at line 433 of file vtkQuadricClustering.h.

◆ FeaturePointsAngle

double vtkQuadricClustering::FeaturePointsAngle
protected

Definition at line 434 of file vtkQuadricClustering.h.

◆ CopyCellData

vtkTypeBool vtkQuadricClustering::CopyCellData
protected

Definition at line 436 of file vtkQuadricClustering.h.

◆ InCellCount

int vtkQuadricClustering::InCellCount
protected

Definition at line 437 of file vtkQuadricClustering.h.

◆ OutCellCount

int vtkQuadricClustering::OutCellCount
protected

Definition at line 438 of file vtkQuadricClustering.h.


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