Module com.marginallyclever.ro3

Package com.marginallyclever.ro3.node.nodes

Class HingeJoint

java.lang.Object

com.marginallyclever.ro3.node.Node

com.marginallyclever.ro3.node.nodes.MechanicalJoint

com.marginallyclever.ro3.node.nodes.HingeJoint

public class HingeJoint
extends MechanicalJoint

a HingeJoint is a joint that can rotate around the local Z axis.

a HingeJoint should be attached to a child Pose referenced as the axle. In this way the axle's parent Pose can be thought of as the initial pose. This helps prevent drift over time.

Field Summary

Fields inherited from class com.marginallyclever.ro3.node.Node

ICON

Constructor Summary

Constructors

Constructor	Description
HingeJoint()
HingeJoint(String name)

Method Summary

Modifier and Type	Method	Description
void	fromJSON(org.json.JSONObject from)	Deserialize this node and its children from a JSON object and its children.
double	getAcceleration()
double	getAngle()
Pose	getAxle()
void	getComponents(List<JPanel> list)	Build a Swing Component that represents this Node.
Icon	getIcon()	Set a custom icon for this node.
double	getMaxAngle()
double	getMinAngle()
double	getVelocity()
void	setAcceleration(double acceleration)
void	setAngle(double degrees)	Set the angle in degrees, clamped to minAngle and maxAngle if they are set.
void	setAngleUnsafe(double degrees)	Set the angle in degrees without clamping to minAngle and maxAngle.
void	setAxle(Pose subject)
void	setMaxAngle(double v)
void	setMinAngle(double v)
void	setVelocity(double velocity)
org.json.JSONObject	toJSON()	Serialize this node and its children to a JSON object and its children.
void	update(double dt)	Called every frame.
void	updateAxleLocationInSpace()	Set the axle's location in space based on the current angle.

Methods inherited from class com.marginallyclever.ro3.node.Node

addAttachListener, addChild, addChild, addDetachListener, addReadyListener, addRenameListener, findByPath, findChild, findChild, findFirstChild, findFirstSibling, findNodeByID, findParent, findParent, getAbsolutePath, getChildren, getName, getParent, getRootNode, getUniqueID, hasChild, hasParent, isNameUsedBySibling, removeAttachListener, removeChild, removeDetachListener, removeReadyListener, removeRenameListener, setName, witnessProtection

Methods inherited from class java.lang.Object

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

Constructor Details

HingeJoint

public HingeJoint()

HingeJoint

public HingeJoint(String name)

Method Details

getComponents

public void getComponents(List<JPanel> list)

Description copied from class: Node

Build a Swing Component that represents this Node.

Overrides:

getComponents in class Node

Parameters:

list - the list to add components to.

update

public void update(double dt)

Description copied from class: Node

Called every frame.

Overrides:

update in class Node

Parameters:

dt - the time since the last frame.

updateAxleLocationInSpace

public void updateAxleLocationInSpace()

Set the axle's location in space based on the current angle.

toJSON

public org.json.JSONObject toJSON()

Description copied from class: Node

Serialize this node and its children to a JSON object and its children. Classes that override this method should call super.toJSON() first, then add to the object returned.

Overrides:

toJSON in class Node

Returns:

the JSON object.

fromJSON

public void fromJSON(org.json.JSONObject from)

Description copied from class: Node

Deserialize this node and its children from a JSON object and its children. Classes that override this method should call super.fromJSON(). When they do it will trigger the creation of child nodes. The child nodes will then call their own fromJSON() methods.

Overrides:

fromJSON in class Node

Parameters:

from - the JSON object to read from.

getAngle

public double getAngle()

setAngle

public void setAngle(double degrees)

Set the angle in degrees, clamped to minAngle and maxAngle if they are set.

Parameters:

degrees - the angle in degrees

setAngleUnsafe

public void setAngleUnsafe(double degrees)

Set the angle in degrees without clamping to minAngle and maxAngle.

Parameters:

degrees - the angle in degrees

getMinAngle

public double getMinAngle()

setMinAngle

public void setMinAngle(double v)

getMaxAngle

public double getMaxAngle()

setMaxAngle

public void setMaxAngle(double v)

getVelocity

public double getVelocity()

setVelocity

public void setVelocity(double velocity)

getAcceleration

public double getAcceleration()

setAcceleration

public void setAcceleration(double acceleration)

getAxle

public Pose getAxle()

setAxle

public void setAxle(Pose subject)

getIcon

public Icon getIcon()

Description copied from class: Node

Set a custom icon for this node.

Overrides:

getIcon in class Node

Returns:

the icon, or null if none.