vtkLine Class Reference

cell represents a 1D line More...

#include <vtkLine.h>

Inheritance diagram for vtkLine:

Collaboration diagram for vtkLine:

List of all members.

Public Types
typedef vtkCell	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
int	GetParametricCenter (double pcoords[3])
int	GetCellType ()
int	GetCellDimension ()
int	GetNumberOfEdges ()
int	GetNumberOfFaces ()
vtkCell *	GetEdge (int)
vtkCell *	GetFace (int)
int	CellBoundary (int subId, double pcoords[3], vtkIdList *pts)
void	Contour (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd)
int	EvaluatePosition (double x[3], double *closestPoint, int &subId, double pcoords[3], double &dist2, double *weights)
void	EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights)
int	Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts)
void	Derivatives (int subId, double pcoords[3], double *values, int dim, double *derivs)
virtual double *	GetParametricCoords ()
void	Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *lines, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)
int	IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)
virtual void	InterpolateFunctions (double pcoords[3], double weights[2])
virtual void	InterpolateDerivs (double pcoords[3], double derivs[2])
Static Public Member Functions
static vtkLine *	New ()
static int	IsTypeOf (const char *type)
static vtkLine *	SafeDownCast (vtkObject *o)
static double	DistanceToLine (double x[3], double p1[3], double p2[3])
static void	InterpolationFunctions (double pcoords[3], double weights[2])
static void	InterpolationDerivs (double pcoords[3], double derivs[2])
static int	Intersection (double p1[3], double p2[3], double x1[3], double x2[3], double &u, double &v)
static double	DistanceToLine (double x[3], double p1[3], double p2[3], double &t, double closestPoint[3])
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)
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)
Protected Member Functions
	vtkLine ()
	~vtkLine ()

---

Detailed Description

cell represents a 1D line

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

Examples:

vtkLine (Examples)

Tests:

vtkLine (Tests)

Definition at line 33 of file vtkLine.h.

---

Member Typedef Documentation

typedef vtkCell vtkLine::Superclass

Reimplemented from vtkCell.

Definition at line 37 of file vtkLine.h.

---

Constructor & Destructor Documentation

vtkLine::vtkLine

(

)

[protected]

vtkLine::~vtkLine

(

)

[inline, protected]

Definition at line 162 of file vtkLine.h.

---

Member Function Documentation

static vtkLine* vtkLine::New

(

)

[static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkObject.

virtual const char* vtkLine::GetClassName

(

)

[virtual]

Reimplemented from vtkCell.

static int vtkLine::IsTypeOf

(

const char *

name

)

[static]

Return 1 if this class type 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.

virtual int 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.

static vtkLine* vtkLine::SafeDownCast

(

vtkObject *

o

)

[static]

Reimplemented from vtkCell.

void vtkLine::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		[virtual]

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.

int vtkLine::GetCellType

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 42 of file vtkLine.h.

int vtkLine::GetCellDimension

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 43 of file vtkLine.h.

int vtkLine::GetNumberOfEdges

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 44 of file vtkLine.h.

int vtkLine::GetNumberOfFaces

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 45 of file vtkLine.h.

vtkCell* vtkLine::GetEdge

(

int

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 46 of file vtkLine.h.

vtkCell* vtkLine::GetFace

(

int

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 47 of file vtkLine.h.

int vtkLine::CellBoundary	(	int	subId,
		double	pcoords[3],
		vtkIdList *	pts
	)		[virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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
	)		[virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

int vtkLine::Triangulate	(	int	index,
		vtkIdList *	ptIds,
		vtkPoints *	pts
	)		[virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

virtual double* vtkLine::GetParametricCoords

(

)

[virtual]

See the vtkCell API for descriptions of these methods.

Reimplemented from vtkCell.

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

Clip this line using scalar value provided. Like contouring, except that it cuts the line to produce other lines.

Implements vtkCell.

int vtkLine::GetParametricCenter

(

double

pcoords[3]

)

[inline, virtual]

Return the center of the triangle in parametric coordinates.

Reimplemented from vtkCell.

Definition at line 170 of file vtkLine.h.

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

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

Implements vtkCell.

static int vtkLine::Intersection	(	double	p1[3],
		double	p2[3],
		double	x1[3],
		double	x2[3],
		double &	u,
		double &	v
	)		[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. The parameters (u,v) are the parametric coordinates of the lines at the position of closest approach.

static double vtkLine::DistanceToLine	(	double	x[3],
		double	p1[3],
		double	p2[3],
		double &	t,
		double	closestPoint[3]
	)		[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]. Also, the method returns the distance squared between x and the line (p1,p2).

static double vtkLine::DistanceToLine	(	double	x[3],
		double	p1[3],
		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.

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.

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.

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

Deprecated:

Replaced by vtkLine::InterpolateFunctions as of VTK 5.2

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

Deprecated:

Replaced by vtkLine::InterpolateDerivs as of VTK 5.2

virtual void vtkLine::InterpolateFunctions	(	double	pcoords[3],
		double	weights[2]
	)		[inline, virtual]

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

Definition at line 150 of file vtkLine.h.

virtual void vtkLine::InterpolateDerivs	(	double	pcoords[3],
		double	derivs[2]
	)		[inline, virtual]

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

Definition at line 154 of file vtkLine.h.

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

• dox/Filtering/vtkLine.h