Joint (jMonkeyEngine3)

java.lang.Object
- com.jme3.anim.Joint

All Implemented Interfaces:

HasLocalTransform, Savable, JmeCloneable, java.lang.Cloneable
```
public class Joint
extends java.lang.Object
implements Savable, JmeCloneable, HasLocalTransform
```
A Joint is the basic component of an armature designed to perform skeletal animation Created by Nehon on 15/12/2017.

Constructor Summary

Constructors
Constructor and Description

Joint()
Instantiate a nameless Joint.

Joint(java.lang.String name)
Instantiate a Joint with the specified name.

Constructors
Constructor and Description
`Joint()` Instantiate a nameless Joint.
`Joint(java.lang.String name)` Instantiate a Joint with the specified name.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addChild(Joint child)` Add the specified Joint as a child.
`void`	`applyBindPose()` Sets the local transform with the bind transforms
`protected void`	`applyInitialPose()` Sets the local transform with the initial transform
`void`	`cloneFields(Cloner cloner, java.lang.Object original)` Callback from `Cloner` to convert this shallow-cloned Joint into a deep-cloned one, using the specified Cloner and original to resolve copied fields.
`protected Node`	`getAttachmentsNode(int jointIndex, SafeArrayList<Geometry> targets)` Access the attachments node of this joint.
`java.util.List<Joint>`	`getChildren()` Access the list of child joints.
`int`	`getId()` Determine this joint's index in the Armature that contains it.
`Transform`	`getInitialTransform()` Access the initial transform.
`Matrix4f`	`getInverseModelBindMatrix()` Determine the inverse model bind matrix.
`protected JointModelTransform`	`getJointModelTransform()` Access the accumulated model transform.
`Quaternion`	`getLocalRotation()` Access the local rotation.
`Vector3f`	`getLocalScale()` Access the local scale vector.
`Transform`	`getLocalTransform()` Access the local transform.
`Vector3f`	`getLocalTranslation()` Access the local translation vector.
`Transform`	`getModelTransform()` Determine the model transform.
`java.lang.String`	`getName()` Determine the name.
`protected void`	`getOffsetTransform(Matrix4f outTransform)` Stores the skinning transform in the specified Matrix4f.
`Joint`	`getParent()` Access the parent joint.
`java.lang.Object`	`jmeClone()` Create a shallow clone for the JME cloner.
`void`	`read(JmeImporter im)` De-serialize this Joint from the specified importer, for example when loading from a J3O file.
`protected void`	`saveBindPose()` Sets the current localTransform as the Bind transform.
`protected void`	`saveInitialPose()` Sets the current local transforms as the initial transform.
`void`	`setId(int id)` Alter this joint's index in the Armature that contains it.
`void`	`setInverseModelBindMatrix(Matrix4f inverseModelBindMatrix)` Replace the inverse model bind matrix.
`protected void`	`setJointModelTransform(JointModelTransform jointModelTransform)` Replace the accumulated model transform.
`void`	`setLocalRotation(Quaternion rotation)` Alter the local rotation.
`void`	`setLocalScale(Vector3f scale)` Alter the local scale vector.
`void`	`setLocalTransform(Transform localTransform)` Alter the local transform.
`void`	`setLocalTranslation(Vector3f translation)` Alter the local translation vector.
`void`	`setName(java.lang.String name)` Alter the name.
`void`	`update()` Updates world transforms for this bone and its children.
`void`	`updateModelTransforms()` Updates the model transforms for this bone, and, possibly the attach node if not null.
`void`	`write(JmeExporter ex)` Serialize this Joint to the specified exporter, for example when saving to a J3O file.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Joint
```
public Joint()
```
    Instantiate a nameless Joint.
  - Joint
```
public Joint(java.lang.String name)
```
    Instantiate a Joint with the specified name.
    
    Parameters:
    
    name - the desired name
- Method Detail
  - update
```
public final void update()
```
    Updates world transforms for this bone and its children.
  - updateModelTransforms
```
public final void updateModelTransforms()
```
    Updates the model transforms for this bone, and, possibly the attach node if not null.
    The model transform of this bone is computed by combining the parent's model transform with this bone's local transform.
  - getOffsetTransform
```
protected void getOffsetTransform(Matrix4f outTransform)
```
    Stores the skinning transform in the specified Matrix4f. The skinning transform applies the animation of the bone to a vertex.
    This assumes that the world transforms for the entire bone hierarchy have already been computed, otherwise this method will return undefined results.
    
    Parameters:
    
    outTransform - storage for the result (modified)
  - saveBindPose
```
protected void saveBindPose()
```
    Sets the current localTransform as the Bind transform.
  - saveInitialPose
```
protected void saveInitialPose()
```
    Sets the current local transforms as the initial transform.
  - applyBindPose
```
public void applyBindPose()
```
    Sets the local transform with the bind transforms
  - applyInitialPose
```
protected void applyInitialPose()
```
    Sets the local transform with the initial transform
  - getJointModelTransform
```
protected JointModelTransform getJointModelTransform()
```
    Access the accumulated model transform.
    
    Returns:
    
    the pre-existing instance
  - setJointModelTransform
```
protected void setJointModelTransform(JointModelTransform jointModelTransform)
```
    Replace the accumulated model transform.
    
    Parameters:
    
    jointModelTransform - the transform to use (alias created)
  - getLocalTranslation
```
public Vector3f getLocalTranslation()
```
    Access the local translation vector.
    
    Returns:
    
    the pre-existing vector
  - getLocalRotation
```
public Quaternion getLocalRotation()
```
    Access the local rotation.
    
    Returns:
    
    the pre-existing Quaternion
  - getLocalScale
```
public Vector3f getLocalScale()
```
    Access the local scale vector.
    
    Returns:
    
    the pre-existing vector
  - setLocalTranslation
```
public void setLocalTranslation(Vector3f translation)
```
    Alter the local translation vector.
    
    Parameters:
    
    translation - the desired offset vector (not null, unaffected)
  - setLocalRotation
```
public void setLocalRotation(Quaternion rotation)
```
    Alter the local rotation.
    
    Parameters:
    
    rotation - the desired rotation (not null, unaffected)
  - setLocalScale
```
public void setLocalScale(Vector3f scale)
```
    Alter the local scale vector.
    
    Parameters:
    
    scale - the desired scale factors (not null, unaffected)
  - addChild
```
public void addChild(Joint child)
```
    Add the specified Joint as a child.
    
    Parameters:
    
    child - the Joint to add (not null, modified)
  - setName
```
public void setName(java.lang.String name)
```
    Alter the name.
    
    Parameters:
    
    name - the desired name
  - setLocalTransform
```
public void setLocalTransform(Transform localTransform)
```
    Alter the local transform.
    
    Specified by:
    
    setLocalTransform in interface HasLocalTransform
    
    Parameters:
    
    localTransform - the desired Transform (not null, unaffected)
  - setInverseModelBindMatrix
```
public void setInverseModelBindMatrix(Matrix4f inverseModelBindMatrix)
```
    Replace the inverse model bind matrix.
    
    Parameters:
    
    inverseModelBindMatrix - the matrix to use (alias created)
  - getName
```
public java.lang.String getName()
```
    Determine the name.
    
    Returns:
    
    the name
  - getParent
```
public Joint getParent()
```
    Access the parent joint.
    
    Returns:
    
    the pre-existing instance, or null if this is a root joint
  - getChildren
```
public java.util.List<Joint> getChildren()
```
    Access the list of child joints.
    
    Returns:
    
    the pre-existing list
  - getAttachmentsNode
```
protected Node getAttachmentsNode(int jointIndex,
                                  SafeArrayList<Geometry> targets)
```
    Access the attachments node of this joint. If this joint doesn't already have an attachments node, create one. Models and effects attached to the attachments node will follow this bone's motions.
    
    Parameters:
    
    jointIndex - this bone's index in its armature (≥0)
    
    targets - a list of geometries animated by this bone's skeleton (not null, unaffected)
    
    Returns:
    
    the attachments node (not null)
  - getInitialTransform
```
public Transform getInitialTransform()
```
    Access the initial transform.
    
    Returns:
    
    the pre-existing instance
  - getLocalTransform
```
public Transform getLocalTransform()
```
    Access the local transform.
    
    Specified by:
    
    getLocalTransform in interface HasLocalTransform
    
    Returns:
    
    the pre-existing instance
  - getModelTransform
```
public Transform getModelTransform()
```
    Determine the model transform.
    
    Returns:
    
    a shared instance
  - getInverseModelBindMatrix
```
public Matrix4f getInverseModelBindMatrix()
```
    Determine the inverse model bind matrix.
    
    Returns:
    
    the pre-existing instance
  - getId
```
public int getId()
```
    Determine this joint's index in the Armature that contains it.
    
    Returns:
    
    an index (≥0)
  - setId
```
public void setId(int id)
```
    Alter this joint's index in the Armature that contains it.
    
    Parameters:
    
    id - the desired index (≥0)
  - jmeClone
```
public java.lang.Object jmeClone()
```
    Create a shallow clone for the JME cloner.
    
    Specified by:
    
    jmeClone in interface JmeCloneable
    
    Returns:
    
    a new instance
  - cloneFields
```
public void cloneFields(Cloner cloner,
                        java.lang.Object original)
```
    Callback from Cloner to convert this shallow-cloned Joint into a deep-cloned one, using the specified Cloner and original to resolve copied fields.
    
    Specified by:
    
    cloneFields in interface JmeCloneable
    
    Parameters:
    
    cloner - the Cloner that's cloning this Joint (not null)
    
    original - the instance from which this Joint was shallow-cloned (not null, unaffected)
  - read
```
public void read(JmeImporter im)
          throws java.io.IOException
```
    De-serialize this Joint from the specified importer, for example when loading from a J3O file.
    
    Specified by:
    
    read in interface Savable
    
    Parameters:
    
    im - the importer to use (not null)
    
    Throws:
    
    java.io.IOException - from the importer
  - write
```
public void write(JmeExporter ex)
           throws java.io.IOException
```
    Serialize this Joint to the specified exporter, for example when saving to a J3O file.
    
    Specified by:
    
    write in interface Savable
    
    Parameters:
    
    ex - the exporter to write to (not null)
    
    Throws:
    
    java.io.IOException - from the exporter

Class Joint

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Joint

Joint

Method Detail

update

updateModelTransforms

getOffsetTransform

saveBindPose

saveInitialPose

applyBindPose

applyInitialPose

getJointModelTransform

setJointModelTransform

getLocalTranslation

getLocalRotation

getLocalScale

setLocalTranslation

setLocalRotation

setLocalScale

addChild

setName

setLocalTransform

setInverseModelBindMatrix

getName

getParent

getChildren

getAttachmentsNode

getInitialTransform

getLocalTransform

getModelTransform

getInverseModelBindMatrix

getId

setId

jmeClone

cloneFields

read

write