artisynth.core.mfreemodels

Class MLSShapeFunction

java.lang.Object

artisynth.core.mfreemodels.MLSShapeFunction

All Implemented Interfaces:

MFreeShapeFunction

public class MLSShapeFunction
extends java.lang.Object
implements MFreeShapeFunction

Field Summary

Fields

Modifier and Type	Field and Description
static int	CONSTANT_ORDER
static int	LINEAR_ORDER
static int	QUADRATIC_ORDER
static int	SHEPARD

Constructor Summary

Constructors

Constructor and Description
MLSShapeFunction()
MLSShapeFunction(int order)
MLSShapeFunction(MFreeNode3d[] nodes, int order)

Method Summary

Modifier and Type	Method and Description
double	eval(int nidx) Returns the value of the i'th shape function (related to node i)
void	eval(VectorNd N) Returns the values of the shape functions at the current point
void	eval(VectorNd N, Vector3d[] dNds) Evaluates both the shape function and derivatives at a given point
void	evalDerivative(int nidx, Vector3d dNds) Returns the value of the i'th shape function derivatives
void	evalDerivative(Vector3d[] dNds) Returns the value of all shape function derivatives
Point3d	getCoordinate() Current coordinate to be used for evaluation
MFreeNode3d[]	getNodes() Current nodes used for evaluation
static Diff2Function3x1[]	getPolynomialBasis(int order)
void	invalidateRestData() Invalidate any stored rest information
void	setBasisFunctions(Diff2Function3x1[] functions)
void	setCoordinate(Point3d pnt) Set the evaluation coordinate
void	setNodes(MFreeNode3d[] nodes) Set the rest nodes
void	updateRestData()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CONSTANT_ORDER

public static final int CONSTANT_ORDER

See Also:

Constant Field Values

SHEPARD

public static final int SHEPARD

See Also:

Constant Field Values

LINEAR_ORDER

public static final int LINEAR_ORDER

See Also:

Constant Field Values

QUADRATIC_ORDER

public static final int QUADRATIC_ORDER

See Also:

Constant Field Values

Constructor Detail

MLSShapeFunction

public MLSShapeFunction()

MLSShapeFunction

public MLSShapeFunction(int order)

MLSShapeFunction

public MLSShapeFunction(MFreeNode3d[] nodes,
                        int order)

Method Detail

setBasisFunctions

public void setBasisFunctions(Diff2Function3x1[] functions)

invalidateRestData

public void invalidateRestData()

Description copied from interface: MFreeShapeFunction

Invalidate any stored rest information

Specified by:

invalidateRestData in interface MFreeShapeFunction

updateRestData

public void updateRestData()

getPolynomialBasis

public static Diff2Function3x1[] getPolynomialBasis(int order)

eval

public double eval(int nidx)

Description copied from interface: MFreeShapeFunction

Returns the value of the i'th shape function (related to node i)

Specified by:

eval in interface MFreeShapeFunction

Parameters:

nidx - node index

Returns:

computed value

evalDerivative

public void evalDerivative(int nidx,
                           Vector3d dNds)

Description copied from interface: MFreeShapeFunction

Returns the value of the i'th shape function derivatives

Specified by:

evalDerivative in interface MFreeShapeFunction

Parameters:

nidx - node index

dNds - derivatives (d/dx, d/dy, d/dz)

setCoordinate

public void setCoordinate(Point3d pnt)

Description copied from interface: MFreeShapeFunction

Set the evaluation coordinate

Specified by:

setCoordinate in interface MFreeShapeFunction

getCoordinate

public Point3d getCoordinate()

Description copied from interface: MFreeShapeFunction

Current coordinate to be used for evaluation

Specified by:

getCoordinate in interface MFreeShapeFunction

Returns:

current coordinate

setNodes

public void setNodes(MFreeNode3d[] nodes)

Description copied from interface: MFreeShapeFunction

Set the rest nodes

Specified by:

setNodes in interface MFreeShapeFunction

Parameters:

nodes - nodes

getNodes

public MFreeNode3d[] getNodes()

Description copied from interface: MFreeShapeFunction

Current nodes used for evaluation

Specified by:

getNodes in interface MFreeShapeFunction

Returns:

nodes affecting shape function

eval

public void eval(VectorNd N)

Description copied from interface: MFreeShapeFunction

Returns the values of the shape functions at the current point

Specified by:

eval in interface MFreeShapeFunction

Parameters:

N - vector of shape functions

evalDerivative

public void evalDerivative(Vector3d[] dNds)

Description copied from interface: MFreeShapeFunction

Returns the value of all shape function derivatives

Specified by:

evalDerivative in interface MFreeShapeFunction

Parameters:

dNds - derivatives (d/dx, d/dy, d/dz)

eval

public void eval(VectorNd N,
                 Vector3d[] dNds)

Description copied from interface: MFreeShapeFunction

Evaluates both the shape function and derivatives at a given point

Specified by:

eval in interface MFreeShapeFunction

Parameters:

N - shape function outputs

dNds - shape function derivative outputs