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vtkPlane Class Reference

perform various plane computations More...

#include <vtkPlane.h>

Inheritance diagram for vtkPlane:
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Collaboration diagram for vtkPlane:
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Public Types

typedef vtkImplicitFunction Superclass
 
- Public Types inherited from vtkImplicitFunction
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.
 
vtkPlaneNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
void EvaluateGradient (double x[3], double g[3]) override
 Evaluate function gradient at point x[3].
 
void Push (double distance)
 Translate the plane in the direction of the normal by the distance specified.
 
void EvaluateFunction (vtkDataArray *input, vtkDataArray *output) override
 Evaluate plane equation for point x[3].
 
double EvaluateFunction (double x[3]) override
 Evaluate plane equation for point x[3].
 
virtual double EvaluateFunction (double x[3])=0
 Evaluate plane equation for point x[3].
 
virtual void EvaluateFunction (vtkDataArray *input, vtkDataArray *output)
 Evaluate plane equation for point x[3].
 
virtual double EvaluateFunction (double x, double y, double z)
 Evaluate plane equation for point x[3].
 
virtual void SetNormal (double x, double y, double z)
 Set/get plane normal.
 
virtual void SetNormal (const double normal[3])
 Set/get plane normal.
 
virtual double * GetNormal ()
 Set/get plane normal.
 
virtual void GetNormal (double data[3])
 Set/get plane normal.
 
virtual void SetOrigin (double x, double y, double z)
 Set/get point through which plane passes.
 
virtual void SetOrigin (const double origin[3])
 Set/get point through which plane passes.
 
virtual double * GetOrigin ()
 Set/get point through which plane passes.
 
virtual void GetOrigin (double data[3])
 Set/get point through which plane passes.
 
virtual void SetOffset (double _arg)
 The origin is shifted in the direction of the normal by the offset.
 
virtual double GetOffset ()
 The origin is shifted in the direction of the normal by the offset.
 
virtual void SetAxisAligned (bool _arg)
 Accessors for AxisAligned, which locks normal to plane to be aligned with x, y, or z axis.
 
virtual bool GetAxisAligned ()
 Accessors for AxisAligned, which locks normal to plane to be aligned with x, y, or z axis.
 
void DeepCopy (vtkPlane *plane)
 Perform a deep copy of the given plane.
 
- Public Member Functions inherited from vtkImplicitFunction
virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
vtkImplicitFunctionNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
vtkMTimeType GetMTime () override
 Overload standard modified time function.
 
virtual void EvaluateGradient (double x[3], double g[3])=0
 Evaluate function gradient at position x-y-z and pass back vector.
 
virtual void FunctionValue (vtkDataArray *input, vtkDataArray *output)
 Evaluate function at position x-y-z and return value.
 
double FunctionValue (const double x[3])
 Evaluate function at position x-y-z and return value.
 
double FunctionValue (double x, double y, double z)
 Evaluate function at position x-y-z and return value.
 
void FunctionGradient (const double x[3], double g[3])
 Evaluate function gradient at position x-y-z and pass back vector.
 
double * FunctionGradient (const double x[3])
 Evaluate function gradient at position x-y-z and pass back vector.
 
double * FunctionGradient (double x, double y, double z)
 Evaluate function gradient at position x-y-z and pass back vector.
 
virtual void SetTransform (vtkAbstractTransform *)
 Set/Get a transformation to apply to input points before executing the implicit function.
 
virtual void SetTransform (const double elements[16])
 Set/Get a transformation to apply to input points before executing the implicit function.
 
virtual vtkAbstractTransformGetTransform ()
 Set/Get a transformation to apply to input points before executing the implicit function.
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on.
 
virtual void DebugOff ()
 Turn debugging output off.
 
bool GetDebug ()
 Get the value of the debug flag.
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag.
 
virtual void Modified ()
 Update the modification time for this object.
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time.
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
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.
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
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.
 
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.
 
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.
 
vtkTypeBool InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
vtkTypeBool InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
virtual void SetObjectName (const std::string &objectName)
 Set/get the name of this object for reporting purposes.
 
virtual std::string GetObjectName () const
 Set/get the name of this object for reporting purposes.
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string.
 
virtual std::string GetObjectDescription () const
 The object description printed in messages and PrintSelf output.
 
virtual vtkTypeBool IsA (const char *name)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
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).
 
virtual void Delete ()
 Delete a VTK object.
 
virtual void FastDelete ()
 Delete a reference to this object.
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream.
 
void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object).
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object).
 
int GetReferenceCount ()
 Return the current reference count of this object.
 
void SetReferenceCount (int)
 Sets the reference count.
 
bool GetIsInMemkind () const
 A local state flag that remembers whether this object lives in the normal or extended memory space.
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual bool UsesGarbageCollector () const
 Indicate whether the class uses vtkGarbageCollector or not.
 

Static Public Member Functions

static vtkPlaneNew ()
 Construct plane passing through origin and normal to z-axis.
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkPlaneSafeDownCast (vtkObjectBase *o)
 
static double Evaluate (double normal[3], double origin[3], double x[3])
 Quick evaluation of plane equation n(x-origin)=0.
 
static bool ComputeBestFittingPlane (vtkPoints *pts, double *origin, double *normal)
 Given a set of points calculate the best-fitting origin and normal for the plane.
 
- Static Public Member Functions inherited from vtkImplicitFunction
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkImplicitFunctionSafeDownCast (vtkObjectBase *o)
 
- 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.
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes.
 
static void SetGlobalWarningDisplay (vtkTypeBool val)
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOn ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static vtkTypeBool GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
- 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.
 
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).
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
 
static void SetMemkindDirectory (const char *directoryname)
 The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
 
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.
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkPlane ()=default
 
 ~vtkPlane () override=default
 
- Protected Member Functions inherited from vtkImplicitFunction
virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkImplicitFunction ()
 
 ~vtkImplicitFunction () 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.
 
void InternalReleaseFocus ()
 These methods allow a command to exclusively grab all events.
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void RegisterInternal (vtkObjectBase *, vtkTypeBool check)
 
virtual void UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
virtual void ObjectFinalize ()
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

double Normal [3] = { 0.0, 0.0, 1.0 }
 
double Origin [3] = { 0.0, 0.0, 0.0 }
 
- Protected Attributes inherited from vtkImplicitFunction
vtkAbstractTransformTransform
 
double ReturnValue [3]
 
- 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
 
static void ProjectPoint (const double x[3], const double origin[3], const double normal[3], double xproj[3])
 Project a point x onto plane defined by origin and normal.
 
void ProjectPoint (const double x[3], double xproj[3])
 Project a point x onto plane defined by origin and normal.
 
static void ProjectVector (const double v[3], const double origin[3], const double normal[3], double vproj[3])
 Project a vector v onto plane defined by origin and normal.
 
void ProjectVector (const double v[3], double vproj[3])
 Project a vector v onto plane defined by origin and normal.
 
static void GeneralizedProjectPoint (const double x[3], const double origin[3], const double normal[3], double xproj[3])
 Project a point x onto plane defined by origin and normal.
 
void GeneralizedProjectPoint (const double x[3], double xproj[3])
 Project a point x onto plane defined by origin and normal.
 
static double DistanceToPlane (double x[3], double n[3], double p0[3])
 Return the distance of a point x to a plane defined by n(x-p0) = 0.
 
double DistanceToPlane (double x[3])
 Return the distance of a point x to a plane defined by n(x-p0) = 0.
 
static int IntersectWithLine (const double p1[3], const double p2[3], double n[3], double p0[3], double &t, double x[3])
 Given a line defined by the two points p1,p2; and a plane defined by the normal n and point p0, compute an intersection.
 
int IntersectWithLine (const double p1[3], const double p2[3], double &t, double x[3])
 Given a line defined by the two points p1,p2; and a plane defined by the normal n and point p0, compute an intersection.
 
static int IntersectWithFinitePlane (double n[3], double o[3], double pOrigin[3], double px[3], double py[3], double x0[3], double x1[3])
 Given two planes, one infinite and one finite, defined by the normal n and point o (infinite plane), and the second finite plane1 defined by the three points (pOrigin,px,py), compute a line of intersection (if any).
 
int IntersectWithFinitePlane (double pOrigin[3], double px[3], double py[3], double x0[3], double x1[3])
 Given two planes, one infinite and one finite, defined by the normal n and point o (infinite plane), and the second finite plane1 defined by the three points (pOrigin,px,py), compute a line of intersection (if any).
 

Additional Inherited Members

- Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction GetCurrentMallocFunction ()
 
static vtkReallocingFunction GetCurrentReallocFunction ()
 
static vtkFreeingFunction GetCurrentFreeFunction ()
 
static vtkFreeingFunction GetAlternateFreeFunction ()
 

Detailed Description

perform various plane computations

vtkPlane provides methods for various plane computations. These include projecting points onto a plane, evaluating the plane equation, and returning plane normal. vtkPlane is a concrete implementation of the abstract class vtkImplicitFunction.

Examples:
vtkPlane (Examples)
Online Examples:

Tests:
vtkPlane (Tests)

Definition at line 137 of file vtkPlane.h.

Member Typedef Documentation

◆ Superclass

Definition at line 145 of file vtkPlane.h.

Constructor & Destructor Documentation

◆ vtkPlane()

vtkPlane::vtkPlane ( )
protecteddefault

◆ ~vtkPlane()

vtkPlane::~vtkPlane ( )
overrideprotecteddefault

Member Function Documentation

◆ New()

static vtkPlane * vtkPlane::New ( )
static

Construct plane passing through origin and normal to z-axis.

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkPlane::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 vtkImplicitFunction.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkPlane::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkImplicitFunction.

◆ NewInstance()

vtkPlane * vtkPlane::NewInstance ( ) const

◆ PrintSelf()

void vtkPlane::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 vtkImplicitFunction.

◆ EvaluateFunction() [1/5]

void vtkPlane::EvaluateFunction ( vtkDataArray input,
vtkDataArray output 
)
overridevirtual

Evaluate plane equation for point x[3].

Reimplemented from vtkImplicitFunction.

◆ EvaluateFunction() [2/5]

double vtkPlane::EvaluateFunction ( double  x[3])
overridevirtual

Evaluate plane equation for point x[3].

Implements vtkImplicitFunction.

◆ EvaluateGradient()

void vtkPlane::EvaluateGradient ( double  x[3],
double  g[3] 
)
overridevirtual

Evaluate function gradient at point x[3].

Implements vtkImplicitFunction.

◆ SetNormal() [1/2]

virtual void vtkPlane::SetNormal ( double  x,
double  y,
double  z 
)
virtual

Set/get plane normal.

Plane is defined by point and normal.

◆ SetNormal() [2/2]

virtual void vtkPlane::SetNormal ( const double  normal[3])
virtual

Set/get plane normal.

Plane is defined by point and normal.

◆ GetNormal() [1/2]

virtual double * vtkPlane::GetNormal ( )
virtual

Set/get plane normal.

Plane is defined by point and normal.

◆ GetNormal() [2/2]

virtual void vtkPlane::GetNormal ( double  data[3])
virtual

Set/get plane normal.

Plane is defined by point and normal.

◆ SetOrigin() [1/2]

virtual void vtkPlane::SetOrigin ( double  x,
double  y,
double  z 
)
virtual

Set/get point through which plane passes.

Plane is defined by point and normal.

◆ SetOrigin() [2/2]

virtual void vtkPlane::SetOrigin ( const double  origin[3])
virtual

Set/get point through which plane passes.

Plane is defined by point and normal.

◆ GetOrigin() [1/2]

virtual double * vtkPlane::GetOrigin ( )
virtual

Set/get point through which plane passes.

Plane is defined by point and normal.

◆ GetOrigin() [2/2]

virtual void vtkPlane::GetOrigin ( double  data[3])
virtual

Set/get point through which plane passes.

Plane is defined by point and normal.

◆ SetOffset()

virtual void vtkPlane::SetOffset ( double  _arg)
virtual

The origin is shifted in the direction of the normal by the offset.

◆ GetOffset()

virtual double vtkPlane::GetOffset ( )
virtual

The origin is shifted in the direction of the normal by the offset.

◆ SetAxisAligned()

virtual void vtkPlane::SetAxisAligned ( bool  _arg)
virtual

Accessors for AxisAligned, which locks normal to plane to be aligned with x, y, or z axis.

◆ GetAxisAligned()

virtual bool vtkPlane::GetAxisAligned ( )
virtual

Accessors for AxisAligned, which locks normal to plane to be aligned with x, y, or z axis.

◆ Push()

void vtkPlane::Push ( double  distance)

Translate the plane in the direction of the normal by the distance specified.

Negative values move the plane in the opposite direction.

◆ ProjectPoint() [1/2]

static void vtkPlane::ProjectPoint ( const double  x[3],
const double  origin[3],
const double  normal[3],
double  xproj[3] 
)
static

Project a point x onto plane defined by origin and normal.

The projected point is returned in xproj. NOTE : normal assumed to have magnitude 1.

◆ ProjectPoint() [2/2]

void vtkPlane::ProjectPoint ( const double  x[3],
double  xproj[3] 
)

Project a point x onto plane defined by origin and normal.

The projected point is returned in xproj. NOTE : normal assumed to have magnitude 1.

◆ ProjectVector() [1/2]

static void vtkPlane::ProjectVector ( const double  v[3],
const double  origin[3],
const double  normal[3],
double  vproj[3] 
)
static

Project a vector v onto plane defined by origin and normal.

The projected vector is returned in vproj.

◆ ProjectVector() [2/2]

void vtkPlane::ProjectVector ( const double  v[3],
double  vproj[3] 
)

Project a vector v onto plane defined by origin and normal.

The projected vector is returned in vproj.

◆ GeneralizedProjectPoint() [1/2]

static void vtkPlane::GeneralizedProjectPoint ( const double  x[3],
const double  origin[3],
const double  normal[3],
double  xproj[3] 
)
static

Project a point x onto plane defined by origin and normal.

The projected point is returned in xproj. NOTE : normal does NOT have to have magnitude 1.

◆ GeneralizedProjectPoint() [2/2]

void vtkPlane::GeneralizedProjectPoint ( const double  x[3],
double  xproj[3] 
)

Project a point x onto plane defined by origin and normal.

The projected point is returned in xproj. NOTE : normal does NOT have to have magnitude 1.

◆ Evaluate()

double vtkPlane::Evaluate ( double  normal[3],
double  origin[3],
double  x[3] 
)
inlinestatic

Quick evaluation of plane equation n(x-origin)=0.

Definition at line 335 of file vtkPlane.h.

◆ DistanceToPlane() [1/2]

double vtkPlane::DistanceToPlane ( double  x[3],
double  n[3],
double  p0[3] 
)
inlinestatic

Return the distance of a point x to a plane defined by n(x-p0) = 0.

The normal n[3] must be magnitude=1.

Definition at line 342 of file vtkPlane.h.

◆ DistanceToPlane() [2/2]

double vtkPlane::DistanceToPlane ( double  x[3])

Return the distance of a point x to a plane defined by n(x-p0) = 0.

The normal n[3] must be magnitude=1.

◆ IntersectWithLine() [1/2]

static int vtkPlane::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  n[3],
double  p0[3],
double &  t,
double  x[3] 
)
static

Given a line defined by the two points p1,p2; and a plane defined by the normal n and point p0, compute an intersection.

The parametric coordinate along the line is returned in t, and the coordinates of intersection are returned in x. A zero is returned if the plane and line do not intersect between (0<=t<=1). If the plane and line are parallel, zero is returned and t is set to VTK_LARGE_DOUBLE.

◆ IntersectWithLine() [2/2]

int vtkPlane::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double &  t,
double  x[3] 
)

Given a line defined by the two points p1,p2; and a plane defined by the normal n and point p0, compute an intersection.

The parametric coordinate along the line is returned in t, and the coordinates of intersection are returned in x. A zero is returned if the plane and line do not intersect between (0<=t<=1). If the plane and line are parallel, zero is returned and t is set to VTK_LARGE_DOUBLE.

◆ IntersectWithFinitePlane() [1/2]

static int vtkPlane::IntersectWithFinitePlane ( double  n[3],
double  o[3],
double  pOrigin[3],
double  px[3],
double  py[3],
double  x0[3],
double  x1[3] 
)
static

Given two planes, one infinite and one finite, defined by the normal n and point o (infinite plane), and the second finite plane1 defined by the three points (pOrigin,px,py), compute a line of intersection (if any).

The line of intersection is defined by the return values (x0,x1). If there is no intersection, then zero is returned; otherwise non-zero. There are two variants of this method. The static function operates on the supplied function parameters; the non-static operates on this instance of vtkPlane (and its associated origin and normal).

◆ IntersectWithFinitePlane() [2/2]

int vtkPlane::IntersectWithFinitePlane ( double  pOrigin[3],
double  px[3],
double  py[3],
double  x0[3],
double  x1[3] 
)

Given two planes, one infinite and one finite, defined by the normal n and point o (infinite plane), and the second finite plane1 defined by the three points (pOrigin,px,py), compute a line of intersection (if any).

The line of intersection is defined by the return values (x0,x1). If there is no intersection, then zero is returned; otherwise non-zero. There are two variants of this method. The static function operates on the supplied function parameters; the non-static operates on this instance of vtkPlane (and its associated origin and normal).

◆ ComputeBestFittingPlane()

static bool vtkPlane::ComputeBestFittingPlane ( vtkPoints pts,
double *  origin,
double *  normal 
)
static

Given a set of points calculate the best-fitting origin and normal for the plane.

The origin will be the centroid of the points. The normal is determined by using the covariance matrix of the points relative to the centroid. Returns true if successful. If not successful the origin will still contain the centroid and the normal will point into z-direction.

◆ DeepCopy()

void vtkPlane::DeepCopy ( vtkPlane plane)

Perform a deep copy of the given plane.

◆ EvaluateFunction() [3/5]

virtual double vtkImplicitFunction::EvaluateFunction ( double  x[3])
virtual

Evaluate plane equation for point x[3].

Implements vtkImplicitFunction.

◆ EvaluateFunction() [4/5]

virtual void vtkImplicitFunction::EvaluateFunction ( vtkDataArray input,
vtkDataArray output 
)
virtual

Evaluate plane equation for point x[3].

Reimplemented from vtkImplicitFunction.

◆ EvaluateFunction() [5/5]

virtual double vtkImplicitFunction::EvaluateFunction ( double  x,
double  y,
double  z 
)
inlinevirtual

Evaluate plane equation for point x[3].

Reimplemented from vtkImplicitFunction.

Definition at line 131 of file vtkImplicitFunction.h.

Member Data Documentation

◆ Normal

double vtkPlane::Normal[3] = { 0.0, 0.0, 1.0 }
protected

Definition at line 305 of file vtkPlane.h.

◆ Origin

double vtkPlane::Origin[3] = { 0.0, 0.0, 0.0 }
protected

Definition at line 306 of file vtkPlane.h.


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