artisynth.core.materials

Class LinearAxialMuscle

java.lang.Object

artisynth.core.materials.MaterialBase

artisynth.core.materials.AxialMaterial

artisynth.core.materials.AxialMuscleMaterial

artisynth.core.materials.LinearAxialMuscle

All Implemented Interfaces:

ScalableUnits, java.lang.Cloneable, CompositeProperty, HasProperties, Clonable, Scannable

public class LinearAxialMuscle
extends AxialMuscleMaterial

Field Summary

Fields inherited from class artisynth.core.materials.AxialMuscleMaterial

DEFAULT_DAMPING, DEFAULT_MAX_FORCE, DEFAULT_MAX_LENGTH, DEFAULT_OPT_LENGTH, DEFAULT_PASSIVE_FRACTION, DEFAULT_SCALING, DEFAULT_TENDON_RATIO, maxStretch, minStretch, myProps

Constructor Summary

Constructors

Constructor and Description
LinearAxialMuscle()
LinearAxialMuscle(double fmax, double lrest)

Method Summary

Modifier and Type	Method and Description
double	computeDFdl(double l, double ldot, double l0, double ex)
double	computeDFdldot(double l, double ldot, double l0, double excitation)
double	computeF(double l, double ldot, double l0, double ex)
boolean	isDFdldotZero() Returns true if computeDFdldot() always returns zero.

Methods inherited from class artisynth.core.materials.AxialMuscleMaterial

clone, equals, getAllPropertyInfo, getDamping, getDampingMode, getForceScaling, getForceScalingMode, getMaxForce, getMaxForceMode, getMaxLength, getMaxLengthMode, getOptLength, getOptLengthMode, getPassiveFraction, getPassiveFractionMode, getSubClasses, getTendonRatio, getTendonRatioMode, scaleDistance, scaleMass, setAxialMuscleMaterialProps, setDamping, setDampingMode, setForceScaling, setForceScalingMode, setMaxForce, setMaxForceMode, setMaxLength, setMaxLengthMode, setOptLength, setOptLengthMode, setPassiveFraction, setPassiveFractionMode, setTendonRatio, setTendonRatioMode

Methods inherited from class artisynth.core.materials.AxialMaterial

equals

Methods inherited from class artisynth.core.materials.MaterialBase

getProperty, getPropertyHost, getPropertyInfo, hasProperty, hasSymmetricTangent, isWritable, scan, setPropertyHost, setPropertyInfo, tangentSymmetryChanged, updateMaterial, write

Methods inherited from class java.lang.Object

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

Constructor Detail

LinearAxialMuscle

public LinearAxialMuscle()

LinearAxialMuscle

public LinearAxialMuscle(double fmax,
                         double lrest)

Method Detail

computeF

public double computeF(double l,
                       double ldot,
                       double l0,
                       double ex)

Specified by:

computeF in class AxialMaterial

computeDFdl

public double computeDFdl(double l,
                          double ldot,
                          double l0,
                          double ex)

Specified by:

computeDFdl in class AxialMaterial

computeDFdldot

public double computeDFdldot(double l,
                             double ldot,
                             double l0,
                             double excitation)

Specified by:

computeDFdldot in class AxialMaterial

isDFdldotZero

public boolean isDFdldotZero()

Description copied from class: AxialMaterial

Returns true if computeDFdldot() always returns zero. For a linear spring, this simply means the damping is zero. When dFdldot is always 0, then stiffness matrix will be symmetric.

Specified by:

isDFdldotZero in class AxialMaterial