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Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
vtkSmoothErrorMetric Class Reference

Objects that compute geometry-based error during cell tessellation according to some max angle. More...

#include <vtkSmoothErrorMetric.h>

Inheritance diagram for vtkSmoothErrorMetric:
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Collaboration diagram for vtkSmoothErrorMetric:
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Public Member Functions

double GetAngleTolerance ()
 
void SetAngleTolerance (double value)
 
int RequiresEdgeSubdivision (double *leftPoint, double *midPoint, double *rightPoint, double alpha)
 
double GetError (double *leftPoint, double *midPoint, double *rightPoint, double alpha)
 
- Public Member Functions inherited from vtkGenericSubdivisionErrorMetric
void SetGenericCell (vtkGenericAdaptorCell *cell)
 
virtual vtkGenericAdaptorCell * GetGenericCell ()
 
void SetDataSet (vtkGenericDataSet *ds)
 
virtual vtkGenericDataSet * GetDataSet ()
 
vtkGenericSubdivisionErrorMetric * NewInstance () const
 
- 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 vtkSmoothErrorMetric * New ()
 
- Static Public Member Functions inherited from vtkGenericSubdivisionErrorMetric
static int IsTypeOf (const char *type)
 
static vtkGenericSubdivisionErrorMetric * SafeDownCast (vtkObjectBase *o)
 
- 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

 vtkSmoothErrorMetric ()
 
virtual ~vtkSmoothErrorMetric ()
 
- Protected Member Functions inherited from vtkGenericSubdivisionErrorMetric
 vtkGenericSubdivisionErrorMetric ()
 
 ~vtkGenericSubdivisionErrorMetric ()
 
- 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 &)
 

Protected Attributes

double AngleTolerance
 
double CosTolerance
 
- Protected Attributes inherited from vtkGenericSubdivisionErrorMetric
vtkGenericAdaptorCell * GenericCell
 
vtkGenericDataSet * DataSet
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 
typedef vtkGenericSubdivisionErrorMetric Superclass
 
static int IsTypeOf (const char *type)
 
static vtkSmoothErrorMetric * SafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkSmoothErrorMetric * NewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual vtkObjectBase * NewInstanceInternal () const
 

Additional Inherited Members

- Public Types inherited from vtkGenericSubdivisionErrorMetric
typedef vtkObject Superclass
 
- Public Types inherited from vtkObject
typedef vtkObjectBase Superclass
 

Detailed Description

Objects that compute geometry-based error during cell tessellation according to some max angle.

It is a concrete error metric, based on a geometric criterium: a max angle between the chord passing through the midpoint and one of the endpoints and the other chord passing through the midpoint and the other endpoint of the edge. It is related to the flatness of an edge.

See also
vtkGenericCellTessellator vtkGenericSubdivisionErrorMetric
Tests:
vtkSmoothErrorMetric (Tests)

Definition at line 41 of file vtkSmoothErrorMetric.h.

Member Typedef Documentation

typedef vtkGenericSubdivisionErrorMetric vtkSmoothErrorMetric::Superclass

Standard VTK type and error macros.

Definition at line 50 of file vtkSmoothErrorMetric.h.

Constructor & Destructor Documentation

vtkSmoothErrorMetric::vtkSmoothErrorMetric ( )
protected
virtual vtkSmoothErrorMetric::~vtkSmoothErrorMetric ( )
protectedvirtual

Member Function Documentation

static vtkSmoothErrorMetric* vtkSmoothErrorMetric::New ( )
static

Construct the error metric with a default flatness threshold of 90.1 degrees.

static int vtkSmoothErrorMetric::IsTypeOf ( const char *  type)
static

Standard VTK type and error macros.

virtual int vtkSmoothErrorMetric::IsA ( const char *  type)
virtual

Standard VTK type and error macros.

Reimplemented from vtkGenericSubdivisionErrorMetric.

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

Standard VTK type and error macros.

virtual vtkObjectBase* vtkSmoothErrorMetric::NewInstanceInternal ( ) const
protectedvirtual

Standard VTK type and error macros.

Reimplemented from vtkGenericSubdivisionErrorMetric.

vtkSmoothErrorMetric* vtkSmoothErrorMetric::NewInstance ( ) const

Standard VTK type and error macros.

void vtkSmoothErrorMetric::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
virtual

Standard VTK type and error macros.

Reimplemented from vtkGenericSubdivisionErrorMetric.

double vtkSmoothErrorMetric::GetAngleTolerance ( )

Return the flatness threshold.

Postcondition
positive_result: result>90 && result<180
void vtkSmoothErrorMetric::SetAngleTolerance ( double  value)

Set the flatness threshold with an angle in degrees. Internally compute the cosine. value is supposed to be in ]90,180[, if not it is clamped in [90.1,179.9]. For instance 178 will give better result than 150.

int vtkSmoothErrorMetric::RequiresEdgeSubdivision ( double *  leftPoint,
double *  midPoint,
double *  rightPoint,
double  alpha 
)
virtual

Does the edge need to be subdivided according to the cosine between the two chords passing through the mid-point and the endpoints? The edge is defined by its `leftPoint' and its `rightPoint'. `leftPoint', `midPoint' and `rightPoint' have to be initialized before calling RequiresEdgeSubdivision(). Their format is global coordinates, parametric coordinates and point centered attributes: xyx rst abc de... `alpha' is the normalized abscissa of the midpoint along the edge. (close to 0 means close to the left point, close to 1 means close to the right point)

Precondition
leftPoint_exists: leftPoint!=0
midPoint_exists: midPoint!=0
rightPoint_exists: rightPoint!=0
clamped_alpha: alpha>0 && alpha<1
valid_size: sizeof(leftPoint)=sizeof(midPoint)=sizeof(rightPoint) =GetAttributeCollection()->GetNumberOfPointCenteredComponents()+6

Implements vtkGenericSubdivisionErrorMetric.

double vtkSmoothErrorMetric::GetError ( double *  leftPoint,
double *  midPoint,
double *  rightPoint,
double  alpha 
)
virtual

Return the error at the mid-point. It will return an error relative to the bounding box size if GetRelative() is true, a square absolute error otherwise. See RequiresEdgeSubdivision() for a description of the arguments.

Precondition
leftPoint_exists: leftPoint!=0
midPoint_exists: midPoint!=0
rightPoint_exists: rightPoint!=0
clamped_alpha: alpha>0 && alpha<1
valid_size: sizeof(leftPoint)=sizeof(midPoint)=sizeof(rightPoint) =GetAttributeCollection()->GetNumberOfPointCenteredComponents()+6
Postcondition
positive_result: result>=0

Implements vtkGenericSubdivisionErrorMetric.

Member Data Documentation

double vtkSmoothErrorMetric::AngleTolerance
protected

Definition at line 100 of file vtkSmoothErrorMetric.h.

double vtkSmoothErrorMetric::CosTolerance
protected

Definition at line 101 of file vtkSmoothErrorMetric.h.

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