SceneNode

```
public interface SceneNode
```
Provides scene nodes representing entities in a scene.
A scene node object can represent an entity that belongs to a node hierarchy.

从以下版本开始:

3

方法概要

所有方法实例方法抽象方法
限定符和类型	方法	说明
`Optional<SceneNode>`	`getChild(String name)`	Obtains a child node based on the name.
`List<SceneNode>`	`getChildren()`	Obtains the list of child nodes of a node.
`Entity`	`getEntity()`	Obtains the entity reference of a node.
`String`	`getName()`	Obtains the name of a node.
`Optional<SceneNode>`	`getParent()`	Obtains the parent node of a specified node.
`Vector3`	`getPosition()`	Obtains the position of the transformation component in a node.
`Quaternion`	`getRotation()`	Obtains the rotation part of the transformation component in a node.
`Vector3`	`getScale()`	Obtains the scaling part of the transformation component in a node.
`Scene`	`getScene()`	Obtains the scene to which a node belongs.
`boolean`	`isAncestorOf(SceneNode node)`	Checks whether a node is the ancestor (parent or grandparent node) of another node.
`boolean`	`isEnabled()`	Obtains the state of a node.
`boolean`	`isExported()`	Obtains whether a node is exported.
`Optional<SceneNode>`	`lookupNodeByComponent(Class<? extends Component> componentType)`	Recursively searches for a node based on the component type.
`Optional<SceneNode>`	`lookupNodeByName(String name)`	Recursively searches for a node based on the name.
`Optional<SceneNode>`	`lookupNodeByPath(String path)`	Searches for a node based on the path name consisting of node names.
`List<SceneNode>`	`lookupNodesByComponent(Class<? extends Component> componentType)`	Recursively searches for multiple nodes in each hierarchy based on the component type.
`void`	`setEnabled(boolean isEnabled)`	Sets whether to enable a node.
`void`	`setExported(boolean isExported)`	Sets whether to export a node.
`void`	`setName(String name)`	Sets the name of a node.
`void`	`setParent(SceneNode parentNode)`	Sets the parent node for a node.
`void`	`setPosition(Vector3 position)`	Sets the position of the transformation component in a node.
`void`	`setRotation(Quaternion rotation)`	Sets the rotation part of the transformation component in a node.
`void`	`setScale(Vector3 scale)`	Sets the scaling part of the transformation component in a node.

- 方法详细资料
  - getName
```
String getName()
```
    Obtains the name of a node.
    
    返回:
    
    Returns the name of the node. The value cannot be null.
  - setName
```
void setName(String name)
```
    Sets the name of a node.
    
    参数:
    
    name - Indicates the name of the node.
    
    抛出:
    
    NullPointerException - Throws this exception if the name of the node is null.
  - getScene
```
Scene getScene()
```
    Obtains the scene to which a node belongs.
    
    返回:
    
    Returns the scene to which the node belongs.
  - getParent
```
Optional<SceneNode> getParent()
```
    Obtains the parent node of a specified node.
    
    返回:
    
    Returns the parent node of the specified node except the root node.
  - setParent
```
void setParent(SceneNode parentNode)
```
    Sets the parent node for a node.
    
    参数:
    
    parentNode - Indicates the parent node to set.
    
    抛出:
    
    NullPointerException - Throws this exception if the parameter is null.
  - getPosition
```
Vector3 getPosition()
```
    Obtains the position of the transformation component in a node.
    
    返回:
    
    Returns the position of the transformation component in the local coordinate system.
  - setPosition
```
void setPosition(Vector3 position)
```
    Sets the position of the transformation component in a node.
    
    参数:
    
    position - Indicates the position of the transformation component in the local coordinate system.
  - getRotation
```
Quaternion getRotation()
```
    Obtains the rotation part of the transformation component in a node.
    
    返回:
    
    Returns the rotation part of the transformation component in the local coordinate system.
  - setRotation
```
void setRotation(Quaternion rotation)
```
    Sets the rotation part of the transformation component in a node.
    
    参数:
    
    rotation - Indicates the rotation part of the transformation component in the local coordinate system.
  - getScale
```
Vector3 getScale()
```
    Obtains the scaling part of the transformation component in a node.
    
    返回:
    
    Returns the scaling part of the transformation component in the local coordinate system.
  - setScale
```
void setScale(Vector3 scale)
```
    Sets the scaling part of the transformation component in a node.
    
    参数:
    
    scale - Indicates the scaling part of the transformation component in the local coordinate system.
  - setEnabled
```
void setEnabled(boolean isEnabled)
```
    Sets whether to enable a node. When a node is disabled, the rendering of this node and all its child nodes will stop.
    
    参数:
    
    isEnabled - Indicates whether the node is enabled.
  - isEnabled
```
boolean isEnabled()
```
    Obtains the state of a node.
    
    返回:
    
    Returns true if the node is enabled; returns false otherwise.
  - setExported
```
void setExported(boolean isExported)
```
    Sets whether to export a node.
    
    参数:
    
    isExported - Indicates whether to export the node.
  - isExported
```
boolean isExported()
```
    Obtains whether a node is exported.
    
    返回:
    
    Returns true if the node is exported; returns false otherwise.
  - getChildren
```
List<SceneNode> getChildren()
```
    Obtains the list of child nodes of a node.
    
    返回:
    
    Returns the list of child nodes if any; returns null otherwise.
  - isAncestorOf
```
boolean isAncestorOf(SceneNode node)
```
    Checks whether a node is the ancestor (parent or grandparent node) of another node.
    
    参数:
    
    node - Indicates the node to check.
    
    返回:
    
    Returns true if the checked node is the ancestor of the specified node; returns false otherwise.
  - getChild
```
Optional<SceneNode> getChild(String name)
```
    Obtains a child node based on the name.
    
    参数:
    
    name - Indicates the name of the child node to query.
    
    返回:
    
    Returns the found node if any; returns null otherwise.
  - lookupNodeByPath
```
Optional<SceneNode> lookupNodeByPath(String path)
```
    Searches for a node based on the path name consisting of node names.
    
    参数:
    
    path - Indicates the complete path for accessing the node. For example, parentNode/childNode/grandChild.
    
    返回:
    
    Returns the found node if any; returns null otherwise.
  - lookupNodeByName
```
Optional<SceneNode> lookupNodeByName(String name)
```
    Recursively searches for a node based on the name. The first node assigned with the specified name is returned.
    
    参数:
    
    name - Indicates the name of the node.
    
    返回:
    
    Returns the found node if any; returns null otherwise.
  - lookupNodeByComponent
```
Optional<SceneNode> lookupNodeByComponent(Class<? extends Component> componentType)
```
    Recursively searches for a node based on the component type. The first node assigned with the specified component is returned.
    
    参数:
    
    componentType - Indicates the component type.
    
    返回:
    
    Returns the found node if any; returns null otherwise.
  - lookupNodesByComponent
```
List<SceneNode> lookupNodesByComponent(Class<? extends Component> componentType)
```
    Recursively searches for multiple nodes in each hierarchy based on the component type. All nodes assigned with the specified component are returned.
    
    参数:
    
    componentType - Indicates the component type.
    
    返回:
    
    Returns the found nodes if any; returns null otherwise.
  - getEntity
```
Entity getEntity()
```
    Obtains the entity reference of a node.
    
    返回:
    
    Returns the entity reference of the node.

接口 SceneNode

方法概要

方法详细资料

getName

setName

getScene

getParent

setParent

getPosition

setPosition

getRotation

setRotation

getScale

setScale

setEnabled

isEnabled

setExported

isExported

getChildren

isAncestorOf

getChild

lookupNodeByPath

lookupNodeByName

lookupNodeByComponent

lookupNodesByComponent

getEntity