Module com.github.stephengold.joltjni

Package com.github.stephengold.joltjni

Class Edge

java.lang.Object

com.github.stephengold.joltjni.JoltPhysicsObject

com.github.stephengold.joltjni.Edge

All Implemented Interfaces:

ConstJoltPhysicsObject, AutoCloseable, Comparable<JoltPhysicsObject>

public class Edge
extends JoltPhysicsObject

Join 2 soft-body vertices with a spring. (native type: SoftBodySharedSettings::Edge)

Constructor Summary

Constructors

Constructor	Description
Edge()	Instantiate a default edge constraint.

Method Summary

Modifier and Type	Method	Description
float	getCompliance()	Return the inverse of the spring's stiffness.
float	getRestLength()	Return the rest length of the spring.
int	getVertex(int indexInEdge)	Return the mesh vertex at the specified end.
void	setCompliance(float compliance)	Alter the stiffness of the spring.
void	setRestLength(float length)	Alter the rest length of the spring.
void	setVertex(int indexInEdge, int indexInMesh)	Assign the specified mesh vertex to the edge.

Methods inherited from class com.github.stephengold.joltjni.JoltPhysicsObject

close, compareTo, equals, getContainingObject, hasAssignedNativeObject, hashCode, ownsNativeObject, setVirtualAddress, setVirtualAddress, startCleaner, targetVa, toString, va

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Edge

public Edge()

Instantiate a default edge constraint.

Method Details

getCompliance

public float getCompliance()

Return the inverse of the spring's stiffness. The edge is unaffected. (native attribute: mCompliance)

Returns:

the compliance value

getRestLength

public float getRestLength()

Return the rest length of the spring. The edge is unaffected. (native attribute: mRestLength)

Returns:

the length (in meters)

getVertex

public int getVertex(int indexInEdge)

Return the mesh vertex at the specified end. (native attribute: mVertex)

Parameters:

indexInEdge - which end of the edge (0 or 1)

Returns:

the mesh index of the vertex (≥0)

setCompliance

public void setCompliance(float compliance)

Alter the stiffness of the spring. (native attribute: mCompliance)

Parameters:

compliance - the inverse of the desired stiffness (default=0)

setRestLength

public void setRestLength(float length)

Alter the rest length of the spring. (native attribute: mRestLength)

Parameters:

length - the desired length (in meters, default=1)

setVertex

public void setVertex(int indexInEdge,
 int indexInMesh)

Assign the specified mesh vertex to the edge. (native attribute: mVertex)

Parameters:

indexInEdge - which end of the edge (0 or 1)

indexInMesh - the index of the vertex to assign (≥0)