VTK: vtkBezierCurve Class Reference

| VTK 9.3.1

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

`#include <vtkBezierCurve.h>`

Inheritance diagram for vtkBezierCurve:
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Collaboration diagram for vtkBezierCurve:
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## Public Types
typedef vtkHigherOrderCurve | Superclass
Public Types inherited from vtkHigherOrderCurve
typedef vtkNonLinearCell | Superclass
Public Types inherited from vtkNonLinearCell
typedef vtkCell | Superclass
Public Types inherited from vtkCell
typedef vtkObject | Superclass

## Public Member Functions
virtual vtkTypeBool | IsA (const char *type)
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
vtkBezierCurve * | NewInstance () const
void | PrintSelf (ostream &os, vtkIndent indent) override
| Methods invoked by print to print information about the object including superclasses. More...
int | GetCellType () override
| Return the type of cell. More...
void | SetRationalWeightsFromPointData (vtkPointData *point_data, vtkIdType numPts)
void | InterpolateFunctions (const double pcoords[3], double *weights) override
void | InterpolateDerivs (const double pcoords[3], double *derivs) override
vtkDoubleArray * | GetRationalWeights ()
Public Member Functions inherited from vtkHigherOrderCurve
vtkHigherOrderCurve * | NewInstance () const
void | PrintSelf (ostream &os, vtkIndent indent) override
| Methods invoked by print to print information about the object including superclasses. More...
int | GetCellDimension () override
| Return the topological dimensional of the cell (0,1,2, or 3). More...
int | RequiresInitialization () override
| Some cells require initialization prior to access. More...
int | GetNumberOfEdges () override
| Return the number of edges in the cell. More...
int | GetNumberOfFaces () override
| Return the number of faces in the cell. More...
vtkCell * | GetEdge (int) override
| Return the edge cell from the edgeId of the cell. More...
vtkCell * | GetFace (int) override
| Return the face cell from the faceId of the cell. More...
void | Initialize () override
int | CellBoundary (int subId, const double pcoords[3], vtkIdList *pts) override
| Given parametric coordinates of a point, return the closest cell boundary, and whether the point is inside or outside of the cell. More...
int | EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
| Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; evaluate parametric coordinates, sub-cell id (!=0 only if cell is composite), distance squared of point x[3] to cell (in particular, the sub-cell indicated), closest point on cell to x[3] (unless closestPoint is null, in which case, the closest point and dist2 are not found), and interpolation weights in cell. More...
void | EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights) override
| Determine global coordinate (x[3]) from subId and parametric coordinates. More...
void | Contour (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) override
| Generate contouring primitives. More...
void | Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
| Cut (or clip) the cell based on the input cellScalars and the specified value. More...
int | IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
| Intersect with a ray. More...
int | Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts) override
| Generate simplices of proper dimension. More...
void | Derivatives (int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
| Compute derivatives given cell subId and parametric coordinates. More...
void | SetParametricCoords ()
double * | GetParametricCoords () override
| Return a contiguous array of parametric coordinates of the points defining this cell. More...
int | GetParametricCenter (double center[3]) override
| Return center of the cell in parametric coordinates. More...
double | GetParametricDistance (const double pcoords[3]) override
| Return the distance of the parametric coordinate provided to the cell. More...
const int * | GetOrder ()
int | GetOrder (int i)
bool | SubCellCoordinatesFromId (vtkVector3i &ijk, int subId)
bool | SubCellCoordinatesFromId (int &i, int subId)
int | PointIndexFromIJK (int i, int, int)
bool | TransformApproxToCellParams (int subCell, double *pcoords)
Public Member Functions inherited from vtkNonLinearCell
vtkNonLinearCell * | NewInstance () const
void | PrintSelf (ostream &os, vtkIndent indent) override
| Methods invoked by print to print information about the object including superclasses. More...
int | IsLinear () override
| Non-linear cells require special treatment (tessellation) when converting to graphics primitives (during mapping). More...
virtual bool | StableClip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)
| Clip the cell based on the input cellScalars and the specified value. More...
Public Member Functions inherited from vtkCell
vtkCell * | NewInstance () const
void | Initialize (int npts, const vtkIdType *pts, vtkPoints *p)
| Initialize cell from outside with point ids and point coordinates specified. More...
void | Initialize (int npts, vtkPoints *p)
| Initialize the cell with point coordinates specified. More...
virtual void | ShallowCopy (vtkCell *c)
| Copy this cell by reference counting the internal data structures. More...
virtual void | DeepCopy (vtkCell *c)
| Copy this cell by completely copying internal data structures. More...
virtual int | IsExplicitCell ()
| Explicit cells require additional representational information beyond the usual cell type and connectivity list information. More...
virtual int | RequiresExplicitFaceRepresentation ()
| Determine whether the cell requires explicit face representation, and methods for setting and getting the faces (see vtkPolyhedron for example usage of these methods). More...
virtual void | SetFaces (vtkIdType *vtkNotUsed(faces))
virtual vtkIdType * | GetFaces ()
vtkPoints * | GetPoints ()
| Get the point coordinates for the cell. More...
vtkIdType | GetNumberOfPoints () const
| Return the number of points in the cell. More...
vtkIdList * | GetPointIds ()
| Return the list of point ids defining the cell. More...
vtkIdType | GetPointId (int ptId)
| For cell point i, return the actual point id. More...
virtual int | Inflate (double dist)
| Inflates the cell. More...
virtual double | ComputeBoundingSphere (double center[3]) const
| Computes the bounding sphere of the cell. More...
void | GetBounds (double bounds[6])
| Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). More...
double * | GetBounds ()
| Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). More...
double | GetLength2 ()
| Compute Length squared of cell (i.e., bounding box diagonal squared). More...
virtual int | IsPrimaryCell ()
| Return whether this cell type has a fixed topology or whether the topology varies depending on the data (e.g., vtkConvexPointSet). More...
virtual void | InterpolateFunctions (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(weight))
| Compute the interpolation functions/derivatives (aka shape functions/derivatives) No-ops at this level. More...
virtual void | InterpolateDerivs (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs))
virtual int | IntersectWithCell (vtkCell *other, double tol=0.0)
| Intersects with an other cell. More...
virtual int | IntersectWithCell (vtkCell *other, const vtkBoundingBox &boudingBox, const vtkBoundingBox &otherBoundingBox, double tol=0.0)
| Intersects with an other cell. 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)
vtkTypeBool | InvokeEvent (unsigned long event)
vtkTypeBool | InvokeEvent (const char *event)
std::string | GetObjectDescription () const override
| The object description printed in messages and PrintSelf output. More...
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f)
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
vtkCommand * | GetCommand (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...
vtkTypeBool | InvokeEvent (unsigned long event, void *callData)
| This method invokes an event and return whether the event was aborted or not. More...
vtkTypeBool | InvokeEvent (const char *event, void *callData)
| This method invokes an event and return whether the event was aborted or not. More...
virtual void | SetObjectName (const std::string &objectName)
| Set/get the name of this object for reporting purposes. More...
virtual std::string | GetObjectName () const
| Set/get the name of this object for reporting purposes. 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...
virtual void | Register (vtkObjectBase *o)
| Increase the reference count (mark as used by another object). More...
virtual void | UnRegister (vtkObjectBase *o)
| Decrease the reference count (release by another object). More...
int | GetReferenceCount ()
| Return the current reference count of this object. More...
void | SetReferenceCount (int)
| Sets the reference count. More...
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...
virtual bool | UsesGarbageCollector () const
| Indicate whether the class uses `vtkGarbageCollector` or not. More...

## Static Public Member Functions
static vtkBezierCurve * | New ()
static vtkTypeBool | IsTypeOf (const char *type)
static vtkBezierCurve * | SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkHigherOrderCurve
static vtkTypeBool | IsTypeOf (const char *type)
static vtkHigherOrderCurve * | SafeDownCast (vtkObjectBase *o)
static bool | PointCountSupportsUniformOrder (vtkIdType pointsPerCell)
| Return true if the number of points supports a cell of uniform degree along each axis. More...
Static Public Member Functions inherited from vtkNonLinearCell
static vtkTypeBool | IsTypeOf (const char *type)
static vtkNonLinearCell * | SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkCell
static vtkTypeBool | IsTypeOf (const char *type)
static vtkCell * | SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkObject
static vtkObject * | New ()
| 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 (vtkTypeBool 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 vtkTypeBool | 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 vtkObjectBase * | New ()
| 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...

## Protected Member Functions
virtual vtkObjectBase * | NewInstanceInternal () const
vtkLine * | GetApproximateLine (int subId, vtkDataArray *scalarsIn=nullptr, vtkDataArray *scalarsOut=nullptr) override
| vtkBezierCurve ()
| ~vtkBezierCurve () override
Protected Member Functions inherited from vtkHigherOrderCurve
| vtkHigherOrderCurve ()
| ~vtkHigherOrderCurve () override
vtkLine * | GetApprox ()
void | PrepareApproxData (vtkPointData *pd, vtkCellData *cd, vtkIdType cellId, vtkDataArray *cellScalars)
Protected Member Functions inherited from vtkNonLinearCell
| vtkNonLinearCell ()
| ~vtkNonLinearCell () override=default
Protected Member Functions inherited from vtkCell
| vtkCell ()
| ~vtkCell () override
Protected Member Functions inherited from vtkObject
| vtkObject ()
| ~vtkObject () override
void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
| These methods allow a command to exclusively grab all events. More...
void | InternalReleaseFocus ()
| These methods allow a command to exclusively grab all events. More...
Protected Member Functions inherited from vtkObjectBase
| vtkObjectBase ()
virtual | ~vtkObjectBase ()
virtual void | ReportReferences (vtkGarbageCollector *)
| vtkObjectBase (const vtkObjectBase &)
void | operator= (const vtkObjectBase &)

## Protected Attributes
vtkNew< vtkDoubleArray > | RationalWeights
Protected Attributes inherited from vtkHigherOrderCurve
int | Order [2]
vtkSmartPointer< vtkPoints > | PointParametricCoordinates
vtkSmartPointer< vtkLine > | Approx
vtkSmartPointer< vtkPointData > | ApproxPD
vtkSmartPointer< vtkCellData > | ApproxCD
vtkNew< vtkDoubleArray > | CellScalars
vtkNew< vtkDoubleArray > | Scalars
vtkNew< vtkPoints > | TmpPts
vtkNew< vtkIdList > | TmpIds
Protected Attributes inherited from vtkCell
double | Bounds [6]
Protected Attributes inherited from vtkObject
bool | Debug
vtkTimeStamp | MTime
vtkSubjectHelper * | SubjectHelper
std::string | ObjectName
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > | ReferenceCount
vtkWeakPointerBase ** | WeakPointers

## Additional Inherited Members
Public Attributes inherited from vtkCell
vtkPoints * | Points
vtkIdList * | PointIds
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction | GetCurrentMallocFunction ()
static vtkReallocingFunction | GetCurrentReallocFunction ()
static vtkFreeingFunction | GetCurrentFreeFunction ()
static vtkFreeingFunction | GetAlternateFreeFunction ()

## Detailed Description

Definition at line 28 of file vtkBezierCurve.h.

## Member Typedef Documentation

## ◆ Superclass

typedef vtkHigherOrderCurve vtkBezierCurve::Superclass

Definition at line 32 of file vtkBezierCurve.h.

## Constructor & Destructor Documentation

## ◆ vtkBezierCurve()

vtkBezierCurve::vtkBezierCurve | ( |  | ) |
| protected

## ◆ ~vtkBezierCurve()

vtkBezierCurve::~vtkBezierCurve | ( |  | ) |
| overrideprotected

## Member Function Documentation

## ◆ New()

static vtkBezierCurve* vtkBezierCurve::New | ( |  | ) |
| static

## ◆ IsTypeOf()

static vtkTypeBool vtkBezierCurve::IsTypeOf | ( | const char * | type | ) |
| static

## ◆ IsA()

virtual vtkTypeBool vtkBezierCurve::IsA | ( | const char * | name | ) |
| virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkHigherOrderCurve.

## ◆ SafeDownCast()

static vtkBezierCurve* vtkBezierCurve::SafeDownCast | ( | vtkObjectBase * | o | ) |
| static

## ◆ NewInstanceInternal()

virtual vtkObjectBase* vtkBezierCurve::NewInstanceInternal | ( |  | ) | const
| protectedvirtual

Reimplemented from vtkHigherOrderCurve.

## ◆ NewInstance()

vtkBezierCurve* vtkBezierCurve::NewInstance | ( |  | ) | const

## ◆ PrintSelf()

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

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObject.

## ◆ GetCellType()

int vtkBezierCurve::GetCellType | ( |  | ) |
| inlineoverridevirtual

Return the type of cell.

Implements vtkHigherOrderCurve.

Definition at line 35 of file vtkBezierCurve.h.

## ◆ SetRationalWeightsFromPointData()

void vtkBezierCurve::SetRationalWeightsFromPointData | ( | vtkPointData * | point_data,
|  | vtkIdType | numPts
| ) |  |

## ◆ InterpolateFunctions()

void vtkBezierCurve::InterpolateFunctions | ( | const double | pcoords[3],
|  | double * | weights
| ) |  |
| overridevirtual

Implements vtkHigherOrderCurve.

## ◆ InterpolateDerivs()

void vtkBezierCurve::InterpolateDerivs | ( | const double | pcoords[3],
|  | double * | derivs
| ) |  |
| overridevirtual

Implements vtkHigherOrderCurve.

## ◆ GetRationalWeights()

vtkDoubleArray* vtkBezierCurve::GetRationalWeights | ( |  | ) |

## ◆ GetApproximateLine()

vtkLine* vtkBezierCurve::GetApproximateLine | ( | int | subId,
|  | vtkDataArray * | scalarsIn = `nullptr`,
|  | vtkDataArray * | scalarsOut = `nullptr`
| ) |  |
| overrideprotectedvirtual

Implements vtkHigherOrderCurve.

## Member Data Documentation

## ◆ RationalWeights

vtkNew<vtkDoubleArray> vtkBezierCurve::RationalWeights
| protected

Definition at line 48 of file vtkBezierCurve.h.

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

- Common/DataModel/vtkBezierCurve.h