VTK  9.0.20210419
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
vtkLine Class Reference

cell represents a 1D line More...

#include <vtkLine.h>

Inheritance diagram for vtkLine:
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Collaboration diagram for vtkLine:
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Public Types

enum  IntersectionType { NoIntersect = 0, Intersect = 2, OnLine = 3 }
 
enum  ToleranceType { Relative = 0, Absolute = 1 }
 
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...
 
vtkLineNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
int Inflate (double dist) override
 Inflates this line by extending both end by dist. More...
 
void Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *lines, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
 Clip this line using scalar value provided. More...
 
int GetParametricCenter (double pcoords[3]) override
 Return the center of the triangle in parametric coordinates. More...
 
int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
 Line-line intersection. More...
 
int GetCellType () override
 See the vtkCell API for descriptions of these methods. More...
 
int GetCellDimension () override
 See the vtkCell API for descriptions of these methods. More...
 
int GetNumberOfEdges () override
 See the vtkCell API for descriptions of these methods. More...
 
int GetNumberOfFaces () override
 See the vtkCell API for descriptions of these methods. More...
 
vtkCellGetEdge (int) override
 See the vtkCell API for descriptions of these methods. More...
 
vtkCellGetFace (int) override
 See the vtkCell API for descriptions of these methods. More...
 
int CellBoundary (int subId, const double pcoords[3], vtkIdList *pts) override
 See the vtkCell API for descriptions of these methods. 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
 See the vtkCell API for descriptions of these methods. More...
 
int EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
 See the vtkCell API for descriptions of these methods. More...
 
void EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights) override
 See the vtkCell API for descriptions of these methods. More...
 
int Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts) override
 See the vtkCell API for descriptions of these methods. More...
 
void Derivatives (int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
 See the vtkCell API for descriptions of these methods. More...
 
double * GetParametricCoords () override
 See the vtkCell API for descriptions of these methods. More...
 
void InterpolateFunctions (const double pcoords[3], double weights[2]) override
 Compute the interpolation functions/derivatives (aka shape functions/derivatives) More...
 
void InterpolateDerivs (const double pcoords[3], double derivs[2]) override
 Compute the interpolation functions/derivatives (aka shape functions/derivatives) More...
 
- Public Member Functions inherited from vtkCell
vtkCellNewInstance () 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 IsLinear ()
 Non-linear cells require special treatment beyond the usual cell type and connectivity list information. More...
 
virtual int RequiresInitialization ()
 Some cells require initialization prior to access. More...
 
virtual void Initialize ()
 
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 vtkIdTypeGetFaces ()
 
vtkPointsGetPoints ()
 Get the point coordinates for the cell. More...
 
vtkIdType GetNumberOfPoints ()
 Return the number of points in the cell. More...
 
vtkIdListGetPointIds ()
 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 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 double GetParametricDistance (const double pcoords[3])
 Return the distance of the parametric coordinate provided to the cell. 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)
 
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...
 
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...
 

Static Public Member Functions

static vtkLineNew ()
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkLineSafeDownCast (vtkObjectBase *o)
 
static int Intersection (const double p1[3], const double p2[3], const double x1[3], const double x2[3], double &u, double &v, const double tolerance=1e-6, int toleranceType=ToleranceType::Relative)
 Performs intersection of the projection of two finite 3D lines onto a 2D plane. More...
 
static int Intersection3D (double p1[3], double p2[3], double x1[3], double x2[3], double &u, double &v, const double tolerance=1e-6)
 Performs intersection of two finite 3D lines. More...
 
static double DistanceToLine (const double x[3], const double p1[3], const double p2[3], double &t, double closestPoint[3]=nullptr)
 Compute the distance of a point x to a finite line (p1,p2). More...
 
static double DistanceToLine (const double x[3], const double p1[3], const double p2[3])
 Determine the distance of the current vertex to the edge defined by the vertices provided. More...
 
static double DistanceBetweenLines (double l0[3], double l1[3], double m0[3], double m1[3], double closestPt1[3], double closestPt2[3], double &t1, double &t2)
 Computes the shortest distance squared between two infinite lines, each defined by a pair of points (l0,l1) and (m0,m1). More...
 
static double DistanceBetweenLineSegments (double l0[3], double l1[3], double m0[3], double m1[3], double closestPt1[3], double closestPt2[3], double &t1, double &t2)
 Computes the shortest distance squared between two finite line segments defined by their end points (l0,l1) and (m0,m1). More...
 
static void InterpolationFunctions (const double pcoords[3], double weights[2])
 
static void InterpolationDerivs (const double pcoords[3], double derivs[2])
 
- Static Public Member Functions inherited from vtkCell
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkCellSafeDownCast (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. 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...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkLine ()
 
 ~vtkLine () 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 &)
 

Additional Inherited Members

- Public Attributes inherited from vtkCell
vtkPointsPoints
 
vtkIdListPointIds
 
- Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction GetCurrentMallocFunction ()
 
static vtkReallocingFunction GetCurrentReallocFunction ()
 
static vtkFreeingFunction GetCurrentFreeFunction ()
 
static vtkFreeingFunction GetAlternateFreeFunction ()
 
- Protected Attributes inherited from vtkCell
double Bounds [6]
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

cell represents a 1D line

vtkLine is a concrete implementation of vtkCell to represent a 1D line.

Definition at line 30 of file vtkLine.h.

Member Typedef Documentation

◆ Superclass

Definition at line 34 of file vtkLine.h.

Member Enumeration Documentation

◆ IntersectionType

Enumerator
NoIntersect 
Intersect 
OnLine 

Definition at line 89 of file vtkLine.h.

◆ ToleranceType

Enumerator
Relative 
Absolute 

Definition at line 97 of file vtkLine.h.

Constructor & Destructor Documentation

◆ vtkLine()

vtkLine::vtkLine ( )
protected

◆ ~vtkLine()

vtkLine::~vtkLine ( )
overrideprotecteddefault

Member Function Documentation

◆ New()

static vtkLine* vtkLine::New ( )
static

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkLine::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 vtkCell.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkLine::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkCell.

◆ NewInstance()

vtkLine* vtkLine::NewInstance ( ) const

◆ PrintSelf()

void vtkLine::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 vtkCell.

◆ GetCellType()

int vtkLine::GetCellType ( )
inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 41 of file vtkLine.h.

◆ GetCellDimension()

int vtkLine::GetCellDimension ( )
inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 42 of file vtkLine.h.

◆ GetNumberOfEdges()

int vtkLine::GetNumberOfEdges ( )
inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 43 of file vtkLine.h.

◆ GetNumberOfFaces()

int vtkLine::GetNumberOfFaces ( )
inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 44 of file vtkLine.h.

◆ GetEdge()

vtkCell* vtkLine::GetEdge ( int  )
inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 45 of file vtkLine.h.

◆ GetFace()

vtkCell* vtkLine::GetFace ( int  )
inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 46 of file vtkLine.h.

◆ CellBoundary()

int vtkLine::CellBoundary ( int  subId,
const double  pcoords[3],
vtkIdList pts 
)
overridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

◆ Contour()

void vtkLine::Contour ( double  value,
vtkDataArray cellScalars,
vtkIncrementalPointLocator locator,
vtkCellArray verts,
vtkCellArray lines,
vtkCellArray polys,
vtkPointData inPd,
vtkPointData outPd,
vtkCellData inCd,
vtkIdType  cellId,
vtkCellData outCd 
)
overridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

◆ EvaluatePosition()

int vtkLine::EvaluatePosition ( const double  x[3],
double  closestPoint[3],
int &  subId,
double  pcoords[3],
double &  dist2,
double  weights[] 
)
overridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

◆ EvaluateLocation()

void vtkLine::EvaluateLocation ( int &  subId,
const double  pcoords[3],
double  x[3],
double *  weights 
)
overridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

◆ Triangulate()

int vtkLine::Triangulate ( int  index,
vtkIdList ptIds,
vtkPoints pts 
)
overridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

◆ Derivatives()

void vtkLine::Derivatives ( int  subId,
const double  pcoords[3],
const double *  values,
int  dim,
double *  derivs 
)
overridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

◆ GetParametricCoords()

double* vtkLine::GetParametricCoords ( )
overridevirtual

See the vtkCell API for descriptions of these methods.

Reimplemented from vtkCell.

◆ Inflate()

int vtkLine::Inflate ( double  dist)
overridevirtual

Inflates this line by extending both end by dist.

A degenerate line remains untouched.

Returns
1 if inflation was successful, 0 if no inflation was performed

Reimplemented from vtkCell.

◆ Clip()

void vtkLine::Clip ( double  value,
vtkDataArray cellScalars,
vtkIncrementalPointLocator locator,
vtkCellArray lines,
vtkPointData inPd,
vtkPointData outPd,
vtkCellData inCd,
vtkIdType  cellId,
vtkCellData outCd,
int  insideOut 
)
overridevirtual

Clip this line using scalar value provided.

Like contouring, except that it cuts the line to produce other lines.

Implements vtkCell.

◆ GetParametricCenter()

int vtkLine::GetParametricCenter ( double  pcoords[3])
inlineoverridevirtual

Return the center of the triangle in parametric coordinates.

Reimplemented from vtkCell.

Definition at line 206 of file vtkLine.h.

◆ IntersectWithLine()

int vtkLine::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
double &  t,
double  x[3],
double  pcoords[3],
int &  subId 
)
overridevirtual

Line-line intersection.

Intersection has to occur within [0,1] parametric coordinates and with specified tolerance.

Implements vtkCell.

◆ Intersection()

static int vtkLine::Intersection ( const double  p1[3],
const double  p2[3],
const double  x1[3],
const double  x2[3],
double &  u,
double &  v,
const double  tolerance = 1e-6,
int  toleranceType = ToleranceType::Relative 
)
static

Performs intersection of the projection of two finite 3D lines onto a 2D plane.

An intersection is found if the projection of the two lines onto the plane perpendicular to the cross product of the two lines intersect. The parameters (u,v) are the parametric coordinates of the lines at the position of closest approach.

The results are of type vtkLine::IntersectionType. An intersection occurs if (u,v) are in the interval [0,1] and the intersection point falls within the tolerance specified. Different types of tolerancing can be used by specifying a tolerance type with the enum provided (vtkLine::ToleranceType). The tolerance types may be: Relative) relative to the projection line lengths (this is default); or Absolute) the distance between the points at (u,v) on the two lines must be less than or equal to the tolerance specified.

◆ Intersection3D()

static int vtkLine::Intersection3D ( double  p1[3],
double  p2[3],
double  x1[3],
double  x2[3],
double &  u,
double &  v,
const double  tolerance = 1e-6 
)
static

Performs intersection of two finite 3D lines.

An intersection is found if the projection of the two lines onto the plane perpendicular to the cross product of the two lines intersect, and if the distance between the closest points of approach are within a relative tolerance. The parameters (u,v) are the parametric coordinates of the lines at the position of closest approach.

The results are of type vtkLine::IntersectionType.

NOTE: Legacy method, returns vtkLine::Intersection(...).

◆ DistanceToLine() [1/2]

static double vtkLine::DistanceToLine ( const double  x[3],
const double  p1[3],
const double  p2[3],
double &  t,
double  closestPoint[3] = nullptr 
)
static

Compute the distance of a point x to a finite line (p1,p2).

The method computes the parametric coordinate t and the point location on the line. Note that t is unconstrained (i.e., it may lie outside the range [0,1]) but the closest point will lie within the finite line [p1,p2], if it is defined. Also, the method returns the distance squared between x and the line (p1,p2).

◆ DistanceToLine() [2/2]

static double vtkLine::DistanceToLine ( const double  x[3],
const double  p1[3],
const double  p2[3] 
)
static

Determine the distance of the current vertex to the edge defined by the vertices provided.

Returns distance squared. Note: line is assumed infinite in extent.

◆ DistanceBetweenLines()

static double vtkLine::DistanceBetweenLines ( double  l0[3],
double  l1[3],
double  m0[3],
double  m1[3],
double  closestPt1[3],
double  closestPt2[3],
double &  t1,
double &  t2 
)
static

Computes the shortest distance squared between two infinite lines, each defined by a pair of points (l0,l1) and (m0,m1).

Upon return, the closest points on the two line segments will be stored in closestPt1 and closestPt2. Their parametric coords (-inf <= t0, t1 <= inf) will be stored in t0 and t1. The return value is the shortest distance squared between the two line-segments.

◆ DistanceBetweenLineSegments()

static double vtkLine::DistanceBetweenLineSegments ( double  l0[3],
double  l1[3],
double  m0[3],
double  m1[3],
double  closestPt1[3],
double  closestPt2[3],
double &  t1,
double &  t2 
)
static

Computes the shortest distance squared between two finite line segments defined by their end points (l0,l1) and (m0,m1).

Upon return, the closest points on the two line segments will be stored in closestPt1 and closestPt2. Their parametric coords (0 <= t0, t1 <= 1) will be stored in t0 and t1. The return value is the shortest distance squared between the two line-segments.

◆ InterpolationFunctions()

static void vtkLine::InterpolationFunctions ( const double  pcoords[3],
double  weights[2] 
)
static

◆ InterpolationDerivs()

static void vtkLine::InterpolationDerivs ( const double  pcoords[3],
double  derivs[2] 
)
static

◆ InterpolateFunctions()

void vtkLine::InterpolateFunctions ( const double  pcoords[3],
double  weights[2] 
)
inlineoverride

Compute the interpolation functions/derivatives (aka shape functions/derivatives)

Definition at line 186 of file vtkLine.h.

◆ InterpolateDerivs()

void vtkLine::InterpolateDerivs ( const double  pcoords[3],
double  derivs[2] 
)
inlineoverride

Compute the interpolation functions/derivatives (aka shape functions/derivatives)

Definition at line 190 of file vtkLine.h.


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