All Implemented Interfaces:

DataContainer
```
public class BodyFixture
extends Fixture
implements DataContainer
```
Represents a piece of a PhysicsBody.
BodyFixture extends the Fixture class, adding physical features like density and friction.

Since:

2.0.0

Version:

5.0.0

Author:

William Bittle

See Also:

Fixture

Field Summary

Fields
Modifier and Type	Field	Description
`static double`	`DEFAULT_DENSITY`	The default density in kg/m²; value = `DEFAULT_DENSITY`
`static double`	`DEFAULT_FRICTION`	The default coefficient of friction; value = `DEFAULT_FRICTION`
`static double`	`DEFAULT_RESTITUTION`	The default coefficient of restitution; value = `DEFAULT_RESTITUTION`
`static double`	`DEFAULT_RESTITUTION_VELOCITY`	The default restitution velocity; in meters/second
`protected double`	`density`	The density in kg/m²
`protected double`	`friction`	The coefficient of friction
`protected double`	`restitution`	The coefficient of restitution
`protected double`	`restitutionVelocity`	The minimum velocity to apply restitution

Fields inherited from class Fixture
filter, sensor, shape, userData

Constructor Summary

Constructors
Constructor Description

BodyFixture(Convex shape)
Minimal constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Mass`	`createMass()`	Creates a new `Mass` object using the set density and shape.
`double`	`getDensity()`	Returns the density of this shape in kg/m².
`double`	`getFriction()`	Returns the coefficient of friction.
`double`	`getRestitution()`	Returns the coefficient of restitution.
`double`	`getRestitutionVelocity()`	Returns the minimum velocity required to apply restitution.
`void`	`setDensity(double density)`	Sets the density of this shape in kg/m².
`void`	`setFriction(double friction)`	Sets the coefficient of friction.
`void`	`setRestitution(double restitution)`	Sets the coefficient of restitution.
`void`	`setRestitutionVelocity(double restitutionVelocity)`	Sets the minimum velocity required to apply restitution.
`String`	`toString()`

Methods inherited from class Fixture
getFilter, getShape, getUserData, isSensor, setFilter, setSensor, setUserData

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface DataContainer
getUserData, setUserData

- Field Detail
  - DEFAULT_FRICTION
```
public static final double DEFAULT_FRICTION
```
    The default coefficient of friction; value = DEFAULT_FRICTION
    
    See Also:
    
    Constant Field Values
  - DEFAULT_RESTITUTION
```
public static final double DEFAULT_RESTITUTION
```
    The default coefficient of restitution; value = DEFAULT_RESTITUTION
    
    See Also:
    
    Constant Field Values
  - DEFAULT_DENSITY
```
public static final double DEFAULT_DENSITY
```
    The default density in kg/m²; value = DEFAULT_DENSITY
    
    See Also:
    
    Constant Field Values
  - DEFAULT_RESTITUTION_VELOCITY
```
public static final double DEFAULT_RESTITUTION_VELOCITY
```
    The default restitution velocity; in meters/second
    
    Since:
    
    4.2.0
    
    See Also:
    
    Constant Field Values
  - density
```
protected double density
```
    The density in kg/m²
  - friction
```
protected double friction
```
    The coefficient of friction
  - restitution
```
protected double restitution
```
    The coefficient of restitution
  - restitutionVelocity
```
protected double restitutionVelocity
```
    The minimum velocity to apply restitution
    
    Since:
    
    4.2.0
- Constructor Detail
  - BodyFixture
```
public BodyFixture(Convex shape)
```
    Minimal constructor.
    
    Parameters:
    
    shape - the Convex Shape for this fixture
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Fixture
  - setDensity
```
public void setDensity(double density)
```
    Sets the density of this shape in kg/m².
    The density of an object is a number that represent how much matter is contained in a given space. Larger density values indicate a more massive object. Larger density objects resist changes in motion more than smaller objects.
    A density equal to zero will make this shape participate in collision detection and resolution, but will it will not contribute to the total mass of the body.
    
    Parameters:
    
    density - the density in kg/m²
    
    Throws:
    
    IllegalArgumentException - if density is less than zero
  - getDensity
```
public double getDensity()
```
    Returns the density of this shape in kg/m².
    
    Returns:
    
    double the density in kg/m²
    
    See Also:
    
    setDensity(double)
  - getFriction
```
public double getFriction()
```
    Returns the coefficient of friction.
    
    Returns:
    
    double
    
    See Also:
    
    setFriction(double)
  - setFriction
```
public void setFriction(double friction)
```
    Sets the coefficient of friction.
    The coefficient of friction is a number that represents how rough a material is. Friction between surfaces converts the kinetic (motion) energy into heat, thereby slowing the objects in contact down.
    A higher value of friction will slow the object down faster. A friction value of zero represents no friction.
    
    Parameters:
    
    friction - the coefficient of friction; must be greater than zero
    
    Throws:
    
    IllegalArgumentException - if friction is less than zero
  - getRestitution
```
public double getRestitution()
```
    Returns the coefficient of restitution.
    
    Returns:
    
    double
    
    See Also:
    
    setRestitution(double)
  - setRestitution
```
public void setRestitution(double restitution)
```
    Sets the coefficient of restitution.
    The coefficient of restitution is a number that represents the bounciness of a material. Larger values produce more bounce and smaller values produce less bounce. A value of 1.0 indicates that an object would retain all of its velocity after bouncing. The value can be higher than 1 to increase the velocity after bouncing.
    Due to floating point precision and accuracy, a value of 1.0 may not produce a fully ellastic bounce (all the velocity is retained).
    
    Parameters:
    
    restitution - the coefficient of restitution; must be greater than zero
    
    Throws:
    
    IllegalArgumentException - if restitution is less than zero
  - getRestitutionVelocity
```
public double getRestitutionVelocity()
```
    Returns the minimum velocity required to apply restitution.
    
    Returns:
    
    double
    
    Since:
    
    4.2.0
  - setRestitutionVelocity
```
public void setRestitutionVelocity(double restitutionVelocity)
```
    Sets the minimum velocity required to apply restitution.
    
    Parameters:
    
    restitutionVelocity - the velocity
    
    Since:
    
    4.2.0
  - createMass
```
public Mass createMass()
```
    Creates a new Mass object using the set density and shape.
    
    Returns:
    
    Mass

Class BodyFixture

Field Summary

Fields inherited from class Fixture

Constructor Summary

Method Summary

Methods inherited from class Fixture

Methods inherited from class Object

Methods inherited from interface DataContainer

Field Detail

DEFAULT_FRICTION

DEFAULT_RESTITUTION

DEFAULT_DENSITY

DEFAULT_RESTITUTION_VELOCITY

density

friction

restitution

restitutionVelocity

Constructor Detail

BodyFixture

Method Detail

toString

setDensity

getDensity

getFriction

setFriction

getRestitution

setRestitution

getRestitutionVelocity

setRestitutionVelocity

createMass