artisynth.core.materials

Enum ElasticContactBase.DampingMethod

java.lang.Object

java.lang.Enum<ElasticContactBase.DampingMethod>

artisynth.core.materials.ElasticContactBase.DampingMethod

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ElasticContactBase.DampingMethod>

Enclosing class:

ElasticContactBase

public static enum ElasticContactBase.DampingMethod
extends java.lang.Enum<ElasticContactBase.DampingMethod>

Describes how the method ElasticContactBase.computeDamping(double, double) computes the net damping d from the damping factor df.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DIRECT Damping is set directly to the damping factor df.
FORCE Damping is set to -force * df, where force is the contact force computed by the ContactForceBehavior.computeResponse(double[], double, artisynth.core.modelbase.ContactPoint, artisynth.core.modelbase.ContactPoint, maspack.matrix.Vector3d, double, int) method and df is the damping factor.

Method Summary

Modifier and Type	Method and Description
static ElasticContactBase.DampingMethod	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ElasticContactBase.DampingMethod[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DIRECT

public static final ElasticContactBase.DampingMethod DIRECT

Damping is set directly to the damping factor df.

FORCE

public static final ElasticContactBase.DampingMethod FORCE

Damping is set to -force * df, where force is the contact force computed by the ContactForceBehavior.computeResponse(double[], double, artisynth.core.modelbase.ContactPoint, artisynth.core.modelbase.ContactPoint, maspack.matrix.Vector3d, double, int) method and df is the damping factor. This produces a Hunt and Crossley-like damping similar to that used in OpenSim (see Sherman, Seth and Delp, "Simbody: multibody dynamics for biomedical research", 2011 Symposium on Human Body Dynamics).

Method Detail

values

public static ElasticContactBase.DampingMethod[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ElasticContactBase.DampingMethod c : ElasticContactBase.DampingMethod.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ElasticContactBase.DampingMethod valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null