BackgroundObject (X3DJSAIL, X3D Java Scene Access Interface Library)

java.lang.Object
- org.web3d.x3d.jsail.X3DConcreteElement
- - org.web3d.x3d.jsail.X3DConcreteNode
  - - org.web3d.x3d.jsail.EnvironmentalEffects.BackgroundObject

All Implemented Interfaces:

X3DBindableNode, X3DChildNode, X3DNode, Background, X3DBackgroundNode
```
public class BackgroundObject
extends X3DConcreteNode
implements Background
```
X3D node tooltip: Background simulates ground and sky, using vertical arrays of wraparound color values. Background can also provide url addresses for backdrop textures on all six sides.
- Hint: NavigationInfo, Background, TextureBackground, Fog, GeoViewpoint, OrthoViewpoint and Viewpoint are bindable nodes, meaning that no more than one of each node type can be active at a given time.
- Warning: results are undefined if a bindable node (Viewpoint, OrthoViewpoint, NavigationInfo, Fog, Background, TextureBackground) is a contained child of LOD or Switch.
- Hint: X3D Example Archives, Basic, Universal Media Panoramas
  http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas
Note that SFColorObject provides a variety of color constants.

Package hint: This org.web3d.x3d.jsail concrete class is used for implementing a standalone X3D object as a Plain Old Java Object (POJO). If you are writing Java code for use inside an X3D Script node, compile separate code using only the org.web3d.x3d.sai package instead.
See Also:

X3D Abstract Specification: Background, X3D Tooltips: Background, X3D Scene Authoring Hints

Field Summary

Fields
Modifier and Type	Field and Description
`static java.util.ArrayList<java.lang.String>`	`BACKURL_DEFAULT_VALUE` MFString field named backUrl has default value equal to an empty list.
`static java.util.ArrayList<java.lang.String>`	`BOTTOMURL_DEFAULT_VALUE` MFString field named bottomUrl has default value equal to an empty list.
`static java.lang.String`	`COMPONENT` String constant COMPONENT defines X3D component for the Background element: EnvironmentalEffects
`java.lang.String`	`containerField_DEFAULT_VALUE` containerField describes typical field relationship of a node to its parent.
`static java.lang.String`	`fromField_BACKURL` fromField ROUTE name for MFString field named backUrl.
`static java.lang.String`	`fromField_BINDTIME` fromField ROUTE name for SFTime field named bindTime.
`static java.lang.String`	`fromField_BOTTOMURL` fromField ROUTE name for MFString field named bottomUrl.
`static java.lang.String`	`fromField_FRONTURL` fromField ROUTE name for MFString field named frontUrl.
`static java.lang.String`	`fromField_GROUNDANGLE` fromField ROUTE name for MFFloat field named groundAngle.
`static java.lang.String`	`fromField_GROUNDCOLOR` fromField ROUTE name for MFColor field named groundColor.
`static java.lang.String`	`fromField_ISBOUND` fromField ROUTE name for SFBool field named isBound.
`static java.lang.String`	`fromField_LEFTURL` fromField ROUTE name for MFString field named leftUrl.
`static java.lang.String`	`fromField_METADATA` fromField ROUTE name for SFNode field named metadata.
`static java.lang.String`	`fromField_RIGHTURL` fromField ROUTE name for MFString field named rightUrl.
`static java.lang.String`	`fromField_SKYANGLE` fromField ROUTE name for MFFloat field named skyAngle.
`static java.lang.String`	`fromField_SKYCOLOR` fromField ROUTE name for MFColor field named skyColor.
`static java.lang.String`	`fromField_TOPURL` fromField ROUTE name for MFString field named topUrl.
`static java.lang.String`	`fromField_TRANSPARENCY` fromField ROUTE name for SFFloat field named transparency.
`static java.util.ArrayList<java.lang.String>`	`FRONTURL_DEFAULT_VALUE` MFString field named frontUrl has default value equal to an empty list.
`static java.util.ArrayList<java.lang.String>`	`LEFTURL_DEFAULT_VALUE` MFString field named leftUrl has default value equal to an empty list.
`static int`	`LEVEL` Integer constant LEVEL provides default X3D EnvironmentalEffects component level for this element: 1
`static java.lang.String`	`NAME` String constant NAME provides name of this element: Background.
`static java.util.ArrayList<java.lang.String>`	`RIGHTURL_DEFAULT_VALUE` MFString field named rightUrl has default value equal to an empty list.
`static float[]`	`SKYCOLOR_DEFAULT_VALUE` MFColor field named skyColor has default value {0f,0f,0f} (Java syntax) or 0 0 0 (XML syntax).
`static java.lang.String`	`toField_BACKURL` toField ROUTE name for MFString field named backUrl.
`static java.lang.String`	`toField_BOTTOMURL` toField ROUTE name for MFString field named bottomUrl.
`static java.lang.String`	`toField_FRONTURL` toField ROUTE name for MFString field named frontUrl.
`static java.lang.String`	`toField_GROUNDANGLE` toField ROUTE name for MFFloat field named groundAngle.
`static java.lang.String`	`toField_GROUNDCOLOR` toField ROUTE name for MFColor field named groundColor.
`static java.lang.String`	`toField_LEFTURL` toField ROUTE name for MFString field named leftUrl.
`static java.lang.String`	`toField_METADATA` toField ROUTE name for SFNode field named metadata.
`static java.lang.String`	`toField_RIGHTURL` toField ROUTE name for MFString field named rightUrl.
`static java.lang.String`	`toField_SET_BIND` toField ROUTE name for SFBool field named set_bind.
`static java.lang.String`	`toField_SKYANGLE` toField ROUTE name for MFFloat field named skyAngle.
`static java.lang.String`	`toField_SKYCOLOR` toField ROUTE name for MFColor field named skyColor.
`static java.lang.String`	`toField_TOPURL` toField ROUTE name for MFString field named topUrl.
`static java.lang.String`	`toField_TRANSPARENCY` toField ROUTE name for SFFloat field named transparency.
`static java.util.ArrayList<java.lang.String>`	`TOPURL_DEFAULT_VALUE` MFString field named topUrl has default value equal to an empty list.
`static float`	`TRANSPARENCY_DEFAULT_VALUE` SFFloat field named transparency has default value 0f (Java syntax) or 0 (XML syntax).

Fields inherited from class org.web3d.x3d.jsail.X3DConcreteNode
CLASS_DEFAULT_VALUE, containerField_ALTERNATE_VALUES, DEF_DEFAULT_VALUE, USE_DEFAULT_VALUE

Fields inherited from class org.web3d.x3d.jsail.X3DConcreteElement
validationResult

Constructor Summary

Constructors
Constructor and Description
`BackgroundObject()` Constructor for BackgroundObject to initialize member variables with default values.
`BackgroundObject(java.lang.String DEFlabel)` Utility constructor that assigns DEF label after initializing member variables with default values.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`BackgroundObject`	`addComments(CommentsBlock newCommentsBlock)` Add CommentsBlock to contained commentsList.
`BackgroundObject`	`addComments(java.lang.String newComment)` Add comment as String to contained commentsList.
`BackgroundObject`	`addComments(java.lang.String[] newComments)` Add comments as String[] array to contained commentsList.
`BackgroundObject`	`clearBackUrl()` Utility method to clear MFString value of backUrl field.
`BackgroundObject`	`clearBottomUrl()` Utility method to clear MFString value of bottomUrl field.
`BackgroundObject`	`clearFrontUrl()` Utility method to clear MFString value of frontUrl field.
`BackgroundObject`	`clearGroundAngle()` Utility method to clear MFFloat value of groundAngle field.
`BackgroundObject`	`clearLeftUrl()` Utility method to clear MFString value of leftUrl field.
`BackgroundObject`	`clearMetadata()` Utility method to clear SFNode value of metadata field.
`BackgroundObject`	`clearRightUrl()` Utility method to clear MFString value of rightUrl field.
`BackgroundObject`	`clearSkyAngle()` Utility method to clear MFFloat value of skyAngle field.
`BackgroundObject`	`clearTopUrl()` Utility method to clear MFString value of topUrl field.
`X3DConcreteElement`	`findElementByNameValue(java.lang.String nameValue)` Recursive method to provide object reference to node or statement by name attribute, if found as part of this element or in a contained element.
`X3DConcreteElement`	`findElementByNameValue(java.lang.String nameValue, java.lang.String elementName)` Recursive method to provide object reference to node or statement by name attribute, if found as part of this element or in a contained element.
`X3DConcreteNode`	`findNodeByDEF(java.lang.String DEFvalue)` Recursive method to provide object reference to node by DEF, if found as this node or in a contained node.
`java.lang.String`	`getAccessType(java.lang.String fieldName)` Indicate accessType corresponding to given fieldName.
`java.lang.String[]`	`getBackUrl()` Provide array of String results from inputOutput MFString field named backUrl.
`java.util.ArrayList<java.lang.String>`	`getBackUrlList()` Utility method to get ArrayList value of MFString backUrl field, similar to `getBackUrl()`.
`double`	`getBindTime()` Provide double value in seconds from outputOnly SFTime field named bindTime.
`java.lang.String[]`	`getBottomUrl()` Provide array of String results from inputOutput MFString field named bottomUrl.
`java.util.ArrayList<java.lang.String>`	`getBottomUrlList()` Utility method to get ArrayList value of MFString bottomUrl field, similar to `getBottomUrl()`.
`java.lang.String`	`getComponent()` Defines X3D component for the Background element: EnvironmentalEffects
`int`	`getComponentLevel()` Provides default X3D component level for this element: 1
`java.lang.String`	`getElementName()` Provides name of this element: Background
`java.lang.String`	`getFieldType(java.lang.String fieldName)` Indicate type corresponding to given fieldName.
`java.lang.String[]`	`getFrontUrl()` Provide array of String results from inputOutput MFString field named frontUrl.
`java.util.ArrayList<java.lang.String>`	`getFrontUrlList()` Utility method to get ArrayList value of MFString frontUrl field, similar to `getFrontUrl()`.
`float[]`	`getGroundAngle()` Provide array of Float results unit axis, angle (in radians) within allowed range of [0,1.5708] from inputOutput MFFloat field named groundAngle.
`java.util.ArrayList<java.lang.Float>`	`getGroundAngleList()` Utility method to get ArrayList value of MFFloat groundAngle field, similar to `getGroundAngle()`.
`float[]`	`getGroundColor()` Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput MFColor field named groundColor.
`ISObject`	`getIS()` Provide field named IS for establishing IS/connect field connections between ProtoInterface fields and internal ProtoBody nodes.
`boolean`	`getIsBound()` Provide boolean value from outputOnly SFBool field named isBound.
`java.lang.String[]`	`getLeftUrl()` Provide array of String results from inputOutput MFString field named leftUrl.
`java.util.ArrayList<java.lang.String>`	`getLeftUrlList()` Utility method to get ArrayList value of MFString leftUrl field, similar to `getLeftUrl()`.
`X3DMetadataObject`	`getMetadata()` Provide X3DMetadataObject instance (using a properly typed node) from inputOutput SFNode field metadata.
`ProtoInstanceObject`	`getMetadataProtoInstance()` Provide properly typed ProtoInstance for inputOutput SFNode field metadata, if available.
`java.lang.String[]`	`getRightUrl()` Provide array of String results from inputOutput MFString field named rightUrl.
`java.util.ArrayList<java.lang.String>`	`getRightUrlList()` Utility method to get ArrayList value of MFString rightUrl field, similar to `getRightUrl()`.
`float[]`	`getSkyAngle()` Provide array of Float results unit axis, angle (in radians) within allowed range of [0,3.1416] from inputOutput MFFloat field named skyAngle.
`java.util.ArrayList<java.lang.Float>`	`getSkyAngleList()` Utility method to get ArrayList value of MFFloat skyAngle field, similar to `getSkyAngle()`.
`float[]`	`getSkyColor()` Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput MFColor field named skyColor.
`java.lang.String[]`	`getTopUrl()` Provide array of String results from inputOutput MFString field named topUrl.
`java.util.ArrayList<java.lang.String>`	`getTopUrlList()` Utility method to get ArrayList value of MFString topUrl field, similar to `getTopUrl()`.
`float`	`getTransparency()` Provide float value within allowed range of [0,1] from inputOutput SFFloat field named transparency.
`boolean`	`hasElementByNameValue(java.lang.String nameValue, java.lang.String elementName)` Recursive method to determine whether node or statement with given name attribute is found, meaning both objects are attached to same scene graph.
`boolean`	`hasMetadata()` Indicate whether an object is available for inputOutput SFNode field metadata.
`boolean`	`hasNodeByDEF(java.lang.String DEFvalue)` Recursive method to determine whether node with DEFvalue is found, meaning both objects are attached to same scene graph.
`void`	`initialize()` Initialize all member variables to default values.
`BackgroundObject`	`setBackUrl(java.util.ArrayList<java.lang.String> newValue)` Assign ArrayList value of MFString backUrl field, similar to `setBackUrl(String[])`.
`BackgroundObject`	`setBackUrl(MFStringObject newValue)` Assign typed object value to MFString backUrl field, similar to `setBackUrl(String[])`.
`BackgroundObject`	`setBackUrl(SFStringObject newValue)` Assign single SFString object value to MFString backUrl field, similar to `setBackUrl(String[])`.
`BackgroundObject`	`setBackUrl(java.lang.String newValue)` Assign singleton String value to MFString backUrl field, similar to `setBackUrl(String[])`.
`BackgroundObject`	`setBackUrl(java.lang.String[] newValue)` Assign String array to inputOutput MFString field named backUrl.
`BackgroundObject`	`setBottomUrl(java.util.ArrayList<java.lang.String> newValue)` Assign ArrayList value of MFString bottomUrl field, similar to `setBottomUrl(String[])`.
`BackgroundObject`	`setBottomUrl(MFStringObject newValue)` Assign typed object value to MFString bottomUrl field, similar to `setBottomUrl(String[])`.
`BackgroundObject`	`setBottomUrl(SFStringObject newValue)` Assign single SFString object value to MFString bottomUrl field, similar to `setBottomUrl(String[])`.
`BackgroundObject`	`setBottomUrl(java.lang.String newValue)` Assign singleton String value to MFString bottomUrl field, similar to `setBottomUrl(String[])`.
`BackgroundObject`	`setBottomUrl(java.lang.String[] newValue)` Assign String array to inputOutput MFString field named bottomUrl.
`BackgroundObject`	`setCssClass(SFStringObject newValue)` Assign typed object value to SFString cssClass field, similar to `setCssClass(String)`.
`BackgroundObject`	`setCssClass(java.lang.String newValue)` Assign String value to inputOutput SFString field named class.
`BackgroundObject`	`setDEF(SFStringObject newValue)` Assign typed object value to SFString DEF field, similar to `setDEF(String)`.
`BackgroundObject`	`setDEF(java.lang.String newValue)` Assign String value to inputOutput SFString field named DEF.
`BackgroundObject`	`setFrontUrl(java.util.ArrayList<java.lang.String> newValue)` Assign ArrayList value of MFString frontUrl field, similar to `setFrontUrl(String[])`.
`BackgroundObject`	`setFrontUrl(MFStringObject newValue)` Assign typed object value to MFString frontUrl field, similar to `setFrontUrl(String[])`.
`BackgroundObject`	`setFrontUrl(SFStringObject newValue)` Assign single SFString object value to MFString frontUrl field, similar to `setFrontUrl(String[])`.
`BackgroundObject`	`setFrontUrl(java.lang.String newValue)` Assign singleton String value to MFString frontUrl field, similar to `setFrontUrl(String[])`.
`BackgroundObject`	`setFrontUrl(java.lang.String[] newValue)` Assign String array to inputOutput MFString field named frontUrl.
`BackgroundObject`	`setGroundAngle(java.util.ArrayList<java.lang.Float> newValue)` Assign ArrayList value of MFFloat groundAngle field, similar to `setGroundAngle(float[])`.
`BackgroundObject`	`setGroundAngle(float[] newValue)` Assign Float array unit axis, angle (in radians) within allowed range of [0,1.5708] to inputOutput MFFloat field named groundAngle.
`BackgroundObject`	`setGroundAngle(int[] newValue)` Assign floating-point array value of MFFloat groundAngle field, similar to `setGroundAngle(float[])`.
`BackgroundObject`	`setGroundAngle(MFFloatObject newValue)` Assign typed object value to MFFloat groundAngle field, similar to `setGroundAngle(float[])`.
`BackgroundObject`	`setGroundColor(float[] newValue)` Assign 3-tuple float array using RGB values [0..1] using RGB values [0..1] to inputOutput MFColor field named groundColor.
`BackgroundObject`	`setGroundColor(MFColorObject newValue)` Assign typed object value to MFColor groundColor field, similar to `setGroundColor(float[])`.
`BackgroundObject`	`setIS(ISObject newValue)` Assign field named IS for establishing IS/connect field connections between ProtoInterface fields and internal ProtoBody nodes.
`BackgroundObject`	`setLeftUrl(java.util.ArrayList<java.lang.String> newValue)` Assign ArrayList value of MFString leftUrl field, similar to `setLeftUrl(String[])`.
`BackgroundObject`	`setLeftUrl(MFStringObject newValue)` Assign typed object value to MFString leftUrl field, similar to `setLeftUrl(String[])`.
`BackgroundObject`	`setLeftUrl(SFStringObject newValue)` Assign single SFString object value to MFString leftUrl field, similar to `setLeftUrl(String[])`.
`BackgroundObject`	`setLeftUrl(java.lang.String newValue)` Assign singleton String value to MFString leftUrl field, similar to `setLeftUrl(String[])`.
`BackgroundObject`	`setLeftUrl(java.lang.String[] newValue)` Assign String array to inputOutput MFString field named leftUrl.
`BackgroundObject`	`setMetadata(ProtoInstanceObject newProtoInstanceNode)` Assign ProtoInstance to metadata field.
`BackgroundObject`	`setMetadata(X3DMetadataObject newValue)` Assign X3DMetadataObject instance (using a properly typed node) to inputOutput SFNode field metadata.
`BackgroundObject`	`setRightUrl(java.util.ArrayList<java.lang.String> newValue)` Assign ArrayList value of MFString rightUrl field, similar to `setRightUrl(String[])`.
`BackgroundObject`	`setRightUrl(MFStringObject newValue)` Assign typed object value to MFString rightUrl field, similar to `setRightUrl(String[])`.
`BackgroundObject`	`setRightUrl(SFStringObject newValue)` Assign single SFString object value to MFString rightUrl field, similar to `setRightUrl(String[])`.
`BackgroundObject`	`setRightUrl(java.lang.String newValue)` Assign singleton String value to MFString rightUrl field, similar to `setRightUrl(String[])`.
`BackgroundObject`	`setRightUrl(java.lang.String[] newValue)` Assign String array to inputOutput MFString field named rightUrl.
`BackgroundObject`	`setSkyAngle(java.util.ArrayList<java.lang.Float> newValue)` Assign ArrayList value of MFFloat skyAngle field, similar to `setSkyAngle(float[])`.
`BackgroundObject`	`setSkyAngle(float[] newValue)` Assign Float array unit axis, angle (in radians) within allowed range of [0,3.1416] to inputOutput MFFloat field named skyAngle.
`BackgroundObject`	`setSkyAngle(int[] newValue)` Assign floating-point array value of MFFloat skyAngle field, similar to `setSkyAngle(float[])`.
`BackgroundObject`	`setSkyAngle(MFFloatObject newValue)` Assign typed object value to MFFloat skyAngle field, similar to `setSkyAngle(float[])`.
`BackgroundObject`	`setSkyColor(float[] newValue)` Assign 3-tuple float array using RGB values [0..1] using RGB values [0..1] to inputOutput MFColor field named skyColor.
`BackgroundObject`	`setSkyColor(MFColorObject newValue)` Assign typed object value to MFColor skyColor field, similar to `setSkyColor(float[])`.
`BackgroundObject`	`setTopUrl(java.util.ArrayList<java.lang.String> newValue)` Assign ArrayList value of MFString topUrl field, similar to `setTopUrl(String[])`.
`BackgroundObject`	`setTopUrl(MFStringObject newValue)` Assign typed object value to MFString topUrl field, similar to `setTopUrl(String[])`.
`BackgroundObject`	`setTopUrl(SFStringObject newValue)` Assign single SFString object value to MFString topUrl field, similar to `setTopUrl(String[])`.
`BackgroundObject`	`setTopUrl(java.lang.String newValue)` Assign singleton String value to MFString topUrl field, similar to `setTopUrl(String[])`.
`BackgroundObject`	`setTopUrl(java.lang.String[] newValue)` Assign String array to inputOutput MFString field named topUrl.
`BackgroundObject`	`setTransparency(float newValue)` Assign float value within allowed range of [0,1] to inputOutput SFFloat field named transparency.
`BackgroundObject`	`setTransparency(SFFloatObject newValue)` Assign typed object value to SFFloat transparency field, similar to `setTransparency(float)`.
`BackgroundObject`	`setUSE(BackgroundObject DEFnode)` Assign a USE reference to another DEF node of same node type, similar to `setUSE(String)`.
`BackgroundObject`	`setUSE(SFStringObject newValue)` Assign typed object value to SFString USE field, similar to `setUSE(String)`.
`BackgroundObject`	`setUSE(java.lang.String newValue)` Assign String value to inputOutput SFString field named USE.
`java.lang.String`	`toStringClassicVRML(int indentLevel)` Recursive method to provide ClassicVRML string serialization.
`java.lang.String`	`toStringVRML97(int indentLevel)` Recursive method to provide VRML97 string serialization.
`java.lang.String`	`toStringX3D(int indentLevel)` Recursive method to provide X3D string serialization of this model subgraph, utilizing XML encoding and conforming to X3D Canonical Form.
`java.lang.String`	`validate()` Recursive method to validate this element plus all contained nodes and statements.

Methods inherited from class org.web3d.x3d.jsail.X3DConcreteNode
getContainerFieldAlternateValues, getContainerFieldOverride, getCssClass, getDEF, getUSE, isNode, isStatement, isUSE, resetContainerFieldOverride, setConcreteCssClass, setConcreteDEF, setConcreteUSE, setContainerFieldOverride

Methods inherited from class org.web3d.x3d.jsail.X3DConcreteElement
clearParentObject, findAncestorElementByName, findAncestorProtoBody, findAncestorSceneObject, findAncestorX3DObject, getPackageName, getParentObject, getValidationResult, hasAncestorElementByName, hasAncestorProtoBody, hasAncestorSceneObject, hasAncestorX3DObject, setParentObject, toStringClassicVRML, toStringVRML97, toStringX3D

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

- Field Detail
  - NAME
```
public static final java.lang.String NAME
```
    String constant NAME provides name of this element: Background.
    
    See Also:
    
    Constant Field Values
  - COMPONENT
```
public static final java.lang.String COMPONENT
```
    String constant COMPONENT defines X3D component for the Background element: EnvironmentalEffects
    
    See Also:
    
    Constant Field Values
  - LEVEL
```
public static final int LEVEL
```
    Integer constant LEVEL provides default X3D EnvironmentalEffects component level for this element: 1
    
    See Also:
    
    Constant Field Values
  - BACKURL_DEFAULT_VALUE
```
public static final java.util.ArrayList<java.lang.String> BACKURL_DEFAULT_VALUE
```
    MFString field named backUrl has default value equal to an empty list.
  - BOTTOMURL_DEFAULT_VALUE
```
public static final java.util.ArrayList<java.lang.String> BOTTOMURL_DEFAULT_VALUE
```
    MFString field named bottomUrl has default value equal to an empty list.
  - FRONTURL_DEFAULT_VALUE
```
public static final java.util.ArrayList<java.lang.String> FRONTURL_DEFAULT_VALUE
```
    MFString field named frontUrl has default value equal to an empty list.
  - LEFTURL_DEFAULT_VALUE
```
public static final java.util.ArrayList<java.lang.String> LEFTURL_DEFAULT_VALUE
```
    MFString field named leftUrl has default value equal to an empty list.
  - RIGHTURL_DEFAULT_VALUE
```
public static final java.util.ArrayList<java.lang.String> RIGHTURL_DEFAULT_VALUE
```
    MFString field named rightUrl has default value equal to an empty list.
  - SKYCOLOR_DEFAULT_VALUE
```
public static final float[] SKYCOLOR_DEFAULT_VALUE
```
    MFColor field named skyColor has default value {0f,0f,0f} (Java syntax) or 0 0 0 (XML syntax).
  - TOPURL_DEFAULT_VALUE
```
public static final java.util.ArrayList<java.lang.String> TOPURL_DEFAULT_VALUE
```
    MFString field named topUrl has default value equal to an empty list.
  - TRANSPARENCY_DEFAULT_VALUE
```
public static final float TRANSPARENCY_DEFAULT_VALUE
```
    SFFloat field named transparency has default value 0f (Java syntax) or 0 (XML syntax).
    
    See Also:
    
    Constant Field Values
  - containerField_DEFAULT_VALUE
```
public java.lang.String containerField_DEFAULT_VALUE
```
    containerField describes typical field relationship of a node to its parent. Usage is not ordinarily needed when using this API, default value is provided for informational purposes.
  - fromField_BACKURL
```
public static final java.lang.String fromField_BACKURL
```
    fromField ROUTE name for MFString field named backUrl.
    
    See Also:
    
    Constant Field Values
  - toField_BACKURL
```
public static final java.lang.String toField_BACKURL
```
    toField ROUTE name for MFString field named backUrl.
    
    See Also:
    
    Constant Field Values
  - fromField_BINDTIME
```
public static final java.lang.String fromField_BINDTIME
```
    fromField ROUTE name for SFTime field named bindTime.
    
    See Also:
    
    Constant Field Values
  - fromField_BOTTOMURL
```
public static final java.lang.String fromField_BOTTOMURL
```
    fromField ROUTE name for MFString field named bottomUrl.
    
    See Also:
    
    Constant Field Values
  - toField_BOTTOMURL
```
public static final java.lang.String toField_BOTTOMURL
```
    toField ROUTE name for MFString field named bottomUrl.
    
    See Also:
    
    Constant Field Values
  - fromField_FRONTURL
```
public static final java.lang.String fromField_FRONTURL
```
    fromField ROUTE name for MFString field named frontUrl.
    
    See Also:
    
    Constant Field Values
  - toField_FRONTURL
```
public static final java.lang.String toField_FRONTURL
```
    toField ROUTE name for MFString field named frontUrl.
    
    See Also:
    
    Constant Field Values
  - fromField_GROUNDANGLE
```
public static final java.lang.String fromField_GROUNDANGLE
```
    fromField ROUTE name for MFFloat field named groundAngle.
    
    See Also:
    
    Constant Field Values
  - toField_GROUNDANGLE
```
public static final java.lang.String toField_GROUNDANGLE
```
    toField ROUTE name for MFFloat field named groundAngle.
    
    See Also:
    
    Constant Field Values
  - fromField_GROUNDCOLOR
```
public static final java.lang.String fromField_GROUNDCOLOR
```
    fromField ROUTE name for MFColor field named groundColor.
    
    See Also:
    
    Constant Field Values
  - toField_GROUNDCOLOR
```
public static final java.lang.String toField_GROUNDCOLOR
```
    toField ROUTE name for MFColor field named groundColor.
    
    See Also:
    
    Constant Field Values
  - fromField_ISBOUND
```
public static final java.lang.String fromField_ISBOUND
```
    fromField ROUTE name for SFBool field named isBound.
    
    See Also:
    
    Constant Field Values
  - fromField_LEFTURL
```
public static final java.lang.String fromField_LEFTURL
```
    fromField ROUTE name for MFString field named leftUrl.
    
    See Also:
    
    Constant Field Values
  - toField_LEFTURL
```
public static final java.lang.String toField_LEFTURL
```
    toField ROUTE name for MFString field named leftUrl.
    
    See Also:
    
    Constant Field Values
  - fromField_METADATA
```
public static final java.lang.String fromField_METADATA
```
    fromField ROUTE name for SFNode field named metadata.
    
    See Also:
    
    Constant Field Values
  - toField_METADATA
```
public static final java.lang.String toField_METADATA
```
    toField ROUTE name for SFNode field named metadata.
    
    See Also:
    
    Constant Field Values
  - fromField_RIGHTURL
```
public static final java.lang.String fromField_RIGHTURL
```
    fromField ROUTE name for MFString field named rightUrl.
    
    See Also:
    
    Constant Field Values
  - toField_RIGHTURL
```
public static final java.lang.String toField_RIGHTURL
```
    toField ROUTE name for MFString field named rightUrl.
    
    See Also:
    
    Constant Field Values
  - toField_SET_BIND
```
public static final java.lang.String toField_SET_BIND
```
    toField ROUTE name for SFBool field named set_bind.
    
    See Also:
    
    Constant Field Values
  - fromField_SKYANGLE
```
public static final java.lang.String fromField_SKYANGLE
```
    fromField ROUTE name for MFFloat field named skyAngle.
    
    See Also:
    
    Constant Field Values
  - toField_SKYANGLE
```
public static final java.lang.String toField_SKYANGLE
```
    toField ROUTE name for MFFloat field named skyAngle.
    
    See Also:
    
    Constant Field Values
  - fromField_SKYCOLOR
```
public static final java.lang.String fromField_SKYCOLOR
```
    fromField ROUTE name for MFColor field named skyColor.
    
    See Also:
    
    Constant Field Values
  - toField_SKYCOLOR
```
public static final java.lang.String toField_SKYCOLOR
```
    toField ROUTE name for MFColor field named skyColor.
    
    See Also:
    
    Constant Field Values
  - fromField_TOPURL
```
public static final java.lang.String fromField_TOPURL
```
    fromField ROUTE name for MFString field named topUrl.
    
    See Also:
    
    Constant Field Values
  - toField_TOPURL
```
public static final java.lang.String toField_TOPURL
```
    toField ROUTE name for MFString field named topUrl.
    
    See Also:
    
    Constant Field Values
  - fromField_TRANSPARENCY
```
public static final java.lang.String fromField_TRANSPARENCY
```
    fromField ROUTE name for SFFloat field named transparency.
    
    See Also:
    
    Constant Field Values
  - toField_TRANSPARENCY
```
public static final java.lang.String toField_TRANSPARENCY
```
    toField ROUTE name for SFFloat field named transparency.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - BackgroundObject
```
public BackgroundObject()
```
    Constructor for BackgroundObject to initialize member variables with default values.
  - BackgroundObject
```
public BackgroundObject(java.lang.String DEFlabel)
```
    Utility constructor that assigns DEF label after initializing member variables with default values.
    
    Parameters:
    
    DEFlabel - unique DEF name for this X3D node
- Method Detail
  - getElementName
```
public final java.lang.String getElementName()
```
    Provides name of this element: Background
    
    Specified by:
    
    getElementName in class X3DConcreteElement
    
    Returns:
    
    name of this element
  - getComponent
```
public final java.lang.String getComponent()
```
    Defines X3D component for the Background element: EnvironmentalEffects
    
    Specified by:
    
    getComponent in class X3DConcreteElement
    
    Returns:
    
    X3D component for this element
  - getComponentLevel
```
public final int getComponentLevel()
```
    Provides default X3D component level for this element: 1
    
    Specified by:
    
    getComponentLevel in class X3DConcreteElement
    
    Returns:
    
    default X3D component level for this element
  - getFieldType
```
public java.lang.String getFieldType(java.lang.String fieldName)
```
    Indicate type corresponding to given fieldName.
    
    Specified by:
    
    getFieldType in class X3DConcreteElement
    
    Parameters:
    
    fieldName - name of field in this X3D node
    
    Returns:
    
    X3D type (SFvec3f etc.), otherwise ConfigurationProperties.ERROR_UNKNOWN_FIELD_TYPE if not recognized
    
    See Also:
    
    ConfigurationProperties.ERROR_UNKNOWN_FIELD_TYPE
  - getAccessType
```
public java.lang.String getAccessType(java.lang.String fieldName)
```
    Indicate accessType corresponding to given fieldName.
    
    Specified by:
    
    getAccessType in class X3DConcreteElement
    
    Parameters:
    
    fieldName - name of field in this X3D node
    
    Returns:
    
    X3D accessType (inputOnly etc.), otherwise ConfigurationProperties.ERROR_UNKNOWN_FIELD_ACCESSTYPE if not recognized
    
    See Also:
    
    ConfigurationProperties.ERROR_UNKNOWN_FIELD_ACCESSTYPE
  - initialize
```
public final void initialize()
```
    Initialize all member variables to default values.
    
    Overrides:
    
    initialize in class X3DConcreteNode
  - getBackUrl
```
public java.lang.String[] getBackUrl()
```
    Provide array of String results from inputOutput MFString field named backUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry.
    - Hint: MFString arrays can have multiple values, so separate each individual string by quote marks
      "http://www.web3d.org"
      "http://www.web3d.org/about" "etc."
    - Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity).
    - Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches.
    - Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getBackUrl in interface Background
    
    Returns:
    
    value of backUrl field
  - getBackUrlList
```
public java.util.ArrayList<java.lang.String> getBackUrlList()
```
    Utility method to get ArrayList value of MFString backUrl field, similar to getBackUrl().
    
    Returns:
    
    value of backUrl field
  - setBackUrl
```
public BackgroundObject setBackUrl(java.lang.String[] newValue)
```
    Assign String array to inputOutput MFString field named backUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry. Hint: MFString arrays can have multiple values, so separate each individual string by quote marks "http://www.web3d.org" "http://www.web3d.org/about" "etc." Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity). Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches. Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setBackUrl in interface Background
    
    Parameters:
    
    newValue - is new value for the backUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBackUrl
```
public BackgroundObject setBackUrl(MFStringObject newValue)
```
    Assign typed object value to MFString backUrl field, similar to setBackUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the backUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBackUrl
```
public BackgroundObject setBackUrl(SFStringObject newValue)
```
    Assign single SFString object value to MFString backUrl field, similar to setBackUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the backUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBackUrl
```
public BackgroundObject setBackUrl(java.lang.String newValue)
```
    Assign singleton String value to MFString backUrl field, similar to setBackUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the backUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBackUrl
```
public BackgroundObject setBackUrl(java.util.ArrayList<java.lang.String> newValue)
```
    Assign ArrayList value of MFString backUrl field, similar to setBackUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the backUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearBackUrl
```
public BackgroundObject clearBackUrl()
```
    Utility method to clear MFString value of backUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - getBindTime
```
public double getBindTime()
```
    Provide double value in seconds from outputOnly SFTime field named bindTime.
    
    Tooltip: event sent when node becomes active/inactive.
    - Warning: it is an error to define this transient outputOnly field in an X3D file.
    Specified by:
    
    getBindTime in interface X3DBindableNode
    
    Specified by:
    
    getBindTime in interface Background
    
    Specified by:
    
    getBindTime in interface X3DBackgroundNode
    
    Returns:
    
    value of bindTime field
  - getBottomUrl
```
public java.lang.String[] getBottomUrl()
```
    Provide array of String results from inputOutput MFString field named bottomUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry.
    - Hint: MFString arrays can have multiple values, so separate each individual string by quote marks
      "http://www.web3d.org"
      "http://www.web3d.org/about" "etc."
    - Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity).
    - Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches.
    - Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getBottomUrl in interface Background
    
    Returns:
    
    value of bottomUrl field
  - getBottomUrlList
```
public java.util.ArrayList<java.lang.String> getBottomUrlList()
```
    Utility method to get ArrayList value of MFString bottomUrl field, similar to getBottomUrl().
    
    Returns:
    
    value of bottomUrl field
  - setBottomUrl
```
public BackgroundObject setBottomUrl(java.lang.String[] newValue)
```
    Assign String array to inputOutput MFString field named bottomUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry. Hint: MFString arrays can have multiple values, so separate each individual string by quote marks "http://www.web3d.org" "http://www.web3d.org/about" "etc." Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity). Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches. Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setBottomUrl in interface Background
    
    Parameters:
    
    newValue - is new value for the bottomUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBottomUrl
```
public BackgroundObject setBottomUrl(MFStringObject newValue)
```
    Assign typed object value to MFString bottomUrl field, similar to setBottomUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the bottomUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBottomUrl
```
public BackgroundObject setBottomUrl(SFStringObject newValue)
```
    Assign single SFString object value to MFString bottomUrl field, similar to setBottomUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the bottomUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBottomUrl
```
public BackgroundObject setBottomUrl(java.lang.String newValue)
```
    Assign singleton String value to MFString bottomUrl field, similar to setBottomUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the bottomUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setBottomUrl
```
public BackgroundObject setBottomUrl(java.util.ArrayList<java.lang.String> newValue)
```
    Assign ArrayList value of MFString bottomUrl field, similar to setBottomUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the bottomUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearBottomUrl
```
public BackgroundObject clearBottomUrl()
```
    Utility method to clear MFString value of bottomUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - getFrontUrl
```
public java.lang.String[] getFrontUrl()
```
    Provide array of String results from inputOutput MFString field named frontUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry.
    - Hint: MFString arrays can have multiple values, so separate each individual string by quote marks
      "http://www.web3d.org"
      "http://www.web3d.org/about" "etc."
    - Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity).
    - Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches.
    - Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getFrontUrl in interface Background
    
    Returns:
    
    value of frontUrl field
  - getFrontUrlList
```
public java.util.ArrayList<java.lang.String> getFrontUrlList()
```
    Utility method to get ArrayList value of MFString frontUrl field, similar to getFrontUrl().
    
    Returns:
    
    value of frontUrl field
  - setFrontUrl
```
public BackgroundObject setFrontUrl(java.lang.String[] newValue)
```
    Assign String array to inputOutput MFString field named frontUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry. Hint: MFString arrays can have multiple values, so separate each individual string by quote marks "http://www.web3d.org" "http://www.web3d.org/about" "etc." Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity). Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches. Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setFrontUrl in interface Background
    
    Parameters:
    
    newValue - is new value for the frontUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setFrontUrl
```
public BackgroundObject setFrontUrl(MFStringObject newValue)
```
    Assign typed object value to MFString frontUrl field, similar to setFrontUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the frontUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setFrontUrl
```
public BackgroundObject setFrontUrl(SFStringObject newValue)
```
    Assign single SFString object value to MFString frontUrl field, similar to setFrontUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the frontUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setFrontUrl
```
public BackgroundObject setFrontUrl(java.lang.String newValue)
```
    Assign singleton String value to MFString frontUrl field, similar to setFrontUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the frontUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setFrontUrl
```
public BackgroundObject setFrontUrl(java.util.ArrayList<java.lang.String> newValue)
```
    Assign ArrayList value of MFString frontUrl field, similar to setFrontUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the frontUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearFrontUrl
```
public BackgroundObject clearFrontUrl()
```
    Utility method to clear MFString value of frontUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - getGroundAngle
```
public float[] getGroundAngle()
```
    Provide array of Float results unit axis, angle (in radians) within allowed range of [0,1.5708] from inputOutput MFFloat field named groundAngle.
    
    Tooltip: [0,pi/2] The angle array values increase from 0.0 nadir (straight down) to pi/2=1.570796 (horizon).
    - Warning: you must have one more groundColor value than groundAngle values.
    - Warning: colors at groundAngle=0 are ignored. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getGroundAngle in interface Background
    
    Specified by:
    
    getGroundAngle in interface X3DBackgroundNode
    
    Returns:
    
    value of groundAngle field
  - getGroundAngleList
```
public java.util.ArrayList<java.lang.Float> getGroundAngleList()
```
    Utility method to get ArrayList value of MFFloat groundAngle field, similar to getGroundAngle().
    
    Returns:
    
    value of groundAngle field
  - setGroundAngle
```
public BackgroundObject setGroundAngle(float[] newValue)
```
    Assign Float array unit axis, angle (in radians) within allowed range of [0,1.5708] to inputOutput MFFloat field named groundAngle.
    
    Tooltip: [0,pi/2] The angle array values increase from 0.0 nadir (straight down) to pi/2=1.570796 (horizon). Warning: you must have one more groundColor value than groundAngle values. Warning: colors at groundAngle=0 are ignored. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setGroundAngle in interface Background
    
    Specified by:
    
    setGroundAngle in interface X3DBackgroundNode
    
    Parameters:
    
    newValue - is new value for the groundAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setGroundAngle
```
public BackgroundObject setGroundAngle(MFFloatObject newValue)
```
    Assign typed object value to MFFloat groundAngle field, similar to setGroundAngle(float[]).
    
    Parameters:
    
    newValue - is new value for the groundAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setGroundAngle
```
public BackgroundObject setGroundAngle(java.util.ArrayList<java.lang.Float> newValue)
```
    Assign ArrayList value of MFFloat groundAngle field, similar to setGroundAngle(float[]).
    
    Parameters:
    
    newValue - is new value for the groundAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearGroundAngle
```
public BackgroundObject clearGroundAngle()
```
    Utility method to clear MFFloat value of groundAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - setGroundAngle
```
public BackgroundObject setGroundAngle(int[] newValue)
```
    Assign floating-point array value of MFFloat groundAngle field, similar to setGroundAngle(float[]).
    
    Parameters:
    
    newValue - is new value for the groundAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - getGroundColor
```
public float[] getGroundColor()
```
    Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput MFColor field named groundColor.
    
    Tooltip: Color of the ground at the various angles on the ground partial sphere. First value is color of ground at 0.0 radians representing the nadir (straight down).
    - Hint: setting the same color at two consecutive angles produces a solid color band.
    - Warning: you must have one more groundColor value than groundAngle values. Interchange profile hint: this field may be ignored, applying the default value regardless.
    - Hint: X3D Scene Authoring Hints, Color
      http://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#Color
    Specified by:
    
    getGroundColor in interface Background
    
    Specified by:
    
    getGroundColor in interface X3DBackgroundNode
    
    Returns:
    
    value of groundColor field
  - setGroundColor
```
public BackgroundObject setGroundColor(float[] newValue)
```
    Assign 3-tuple float array using RGB values [0..1] using RGB values [0..1] to inputOutput MFColor field named groundColor.
    
    Tooltip: Color of the ground at the various angles on the ground partial sphere. First value is color of ground at 0.0 radians representing the nadir (straight down). Hint: setting the same color at two consecutive angles produces a solid color band. Warning: you must have one more groundColor value than groundAngle values. Interchange profile hint: this field may be ignored, applying the default value regardless. Hint: X3D Scene Authoring Hints, Color http://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#Color
    
    Specified by:
    
    setGroundColor in interface Background
    
    Specified by:
    
    setGroundColor in interface X3DBackgroundNode
    
    Parameters:
    
    newValue - is new value for the groundColor field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setGroundColor
```
public BackgroundObject setGroundColor(MFColorObject newValue)
```
    Assign typed object value to MFColor groundColor field, similar to setGroundColor(float[]).
    
    Parameters:
    
    newValue - is new value for the groundColor field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - getIsBound
```
public boolean getIsBound()
```
    Provide boolean value from outputOnly SFBool field named isBound.
    
    Tooltip: event true sent when node becomes active, event false sent when unbound by another node.
    - Hint: paired node operations can be established by connecting set_bind and isBound fields of corresponding bindable nodes.
    - Warning: it is an error to define this transient outputOnly field in an X3D file.
    Specified by:
    
    getIsBound in interface X3DBindableNode
    
    Specified by:
    
    getIsBound in interface Background
    
    Specified by:
    
    getIsBound in interface X3DBackgroundNode
    
    Returns:
    
    value of isBound field
  - getLeftUrl
```
public java.lang.String[] getLeftUrl()
```
    Provide array of String results from inputOutput MFString field named leftUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry.
    - Hint: MFString arrays can have multiple values, so separate each individual string by quote marks
      "http://www.web3d.org"
      "http://www.web3d.org/about" "etc."
    - Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity).
    - Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches.
    - Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getLeftUrl in interface Background
    
    Returns:
    
    value of leftUrl field
  - getLeftUrlList
```
public java.util.ArrayList<java.lang.String> getLeftUrlList()
```
    Utility method to get ArrayList value of MFString leftUrl field, similar to getLeftUrl().
    
    Returns:
    
    value of leftUrl field
  - setLeftUrl
```
public BackgroundObject setLeftUrl(java.lang.String[] newValue)
```
    Assign String array to inputOutput MFString field named leftUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry. Hint: MFString arrays can have multiple values, so separate each individual string by quote marks "http://www.web3d.org" "http://www.web3d.org/about" "etc." Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity). Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches. Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setLeftUrl in interface Background
    
    Parameters:
    
    newValue - is new value for the leftUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setLeftUrl
```
public BackgroundObject setLeftUrl(MFStringObject newValue)
```
    Assign typed object value to MFString leftUrl field, similar to setLeftUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the leftUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setLeftUrl
```
public BackgroundObject setLeftUrl(SFStringObject newValue)
```
    Assign single SFString object value to MFString leftUrl field, similar to setLeftUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the leftUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setLeftUrl
```
public BackgroundObject setLeftUrl(java.lang.String newValue)
```
    Assign singleton String value to MFString leftUrl field, similar to setLeftUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the leftUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setLeftUrl
```
public BackgroundObject setLeftUrl(java.util.ArrayList<java.lang.String> newValue)
```
    Assign ArrayList value of MFString leftUrl field, similar to setLeftUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the leftUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearLeftUrl
```
public BackgroundObject clearLeftUrl()
```
    Utility method to clear MFString value of leftUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - getMetadata
```
public X3DMetadataObject getMetadata()
```
    Provide X3DMetadataObject instance (using a properly typed node) from inputOutput SFNode field metadata.
    
    Specified by:
    
    getMetadata in interface X3DBindableNode
    
    Specified by:
    
    getMetadata in interface X3DChildNode
    
    Specified by:
    
    getMetadata in interface X3DNode
    
    Specified by:
    
    getMetadata in interface Background
    
    Specified by:
    
    getMetadata in interface X3DBackgroundNode
    
    Returns:
    
    value of metadata field
    
    See Also:
    
    getMetadataProtoInstance(), X3D Scene Authoring Hints: Metadata Nodes
  - setMetadata
```
public BackgroundObject setMetadata(X3DMetadataObject newValue)
```
    Assign X3DMetadataObject instance (using a properly typed node) to inputOutput SFNode field metadata.
    
    Specified by:
    
    setMetadata in interface X3DBindableNode
    
    Specified by:
    
    setMetadata in interface X3DChildNode
    
    Specified by:
    
    setMetadata in interface X3DNode
    
    Specified by:
    
    setMetadata in interface Background
    
    Specified by:
    
    setMetadata in interface X3DBackgroundNode
    
    Specified by:
    
    setMetadata in class X3DConcreteNode
    
    Parameters:
    
    newValue - is new value for the metadata field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
    
    See Also:
    
    setMetadata(ProtoInstanceObject), X3D Scene Authoring Hints: Metadata Nodes
  - clearMetadata
```
public BackgroundObject clearMetadata()
```
    Utility method to clear SFNode value of metadata field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - setMetadata
```
public BackgroundObject setMetadata(ProtoInstanceObject newProtoInstanceNode)
```
    Assign ProtoInstance to metadata field. Warning: ProtoInstance must match acceptable node type X3DMetadataObject.
    
    Specified by:
    
    setMetadata in class X3DConcreteNode
    
    Parameters:
    
    newProtoInstanceNode - is the new ProtoInstance node for the metadata field
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
    
    See Also:
    
    setMetadata(X3DMetadataObject), X3D Scene Authoring Hints: Metadata Nodes
  - getMetadataProtoInstance
```
public ProtoInstanceObject getMetadataProtoInstance()
```
    Provide properly typed ProtoInstance for inputOutput SFNode field metadata, if available.
    
    Returns:
    
    ProtoInstance value of geometry field
    
    See Also:
    
    getMetadata(), X3D Scene Authoring Hints: Metadata Nodes
  - hasMetadata
```
public boolean hasMetadata()
```
    Indicate whether an object is available for inputOutput SFNode field metadata.
    
    Returns:
    
    whether a properly typed node or ProtoInstance or CommentsBlock is available.
    
    See Also:
    
    getMetadata(), getMetadataProtoInstance(), X3D Scene Authoring Hints: Metadata Nodes
  - getRightUrl
```
public java.lang.String[] getRightUrl()
```
    Provide array of String results from inputOutput MFString field named rightUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry.
    - Hint: MFString arrays can have multiple values, so separate each individual string by quote marks
      "http://www.web3d.org"
      "http://www.web3d.org/about" "etc."
    - Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity).
    - Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches.
    - Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getRightUrl in interface Background
    
    Returns:
    
    value of rightUrl field
  - getRightUrlList
```
public java.util.ArrayList<java.lang.String> getRightUrlList()
```
    Utility method to get ArrayList value of MFString rightUrl field, similar to getRightUrl().
    
    Returns:
    
    value of rightUrl field
  - setRightUrl
```
public BackgroundObject setRightUrl(java.lang.String[] newValue)
```
    Assign String array to inputOutput MFString field named rightUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry. Hint: MFString arrays can have multiple values, so separate each individual string by quote marks "http://www.web3d.org" "http://www.web3d.org/about" "etc." Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity). Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches. Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setRightUrl in interface Background
    
    Parameters:
    
    newValue - is new value for the rightUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setRightUrl
```
public BackgroundObject setRightUrl(MFStringObject newValue)
```
    Assign typed object value to MFString rightUrl field, similar to setRightUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the rightUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setRightUrl
```
public BackgroundObject setRightUrl(SFStringObject newValue)
```
    Assign single SFString object value to MFString rightUrl field, similar to setRightUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the rightUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setRightUrl
```
public BackgroundObject setRightUrl(java.lang.String newValue)
```
    Assign singleton String value to MFString rightUrl field, similar to setRightUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the rightUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setRightUrl
```
public BackgroundObject setRightUrl(java.util.ArrayList<java.lang.String> newValue)
```
    Assign ArrayList value of MFString rightUrl field, similar to setRightUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the rightUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearRightUrl
```
public BackgroundObject clearRightUrl()
```
    Utility method to clear MFString value of rightUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - getSkyAngle
```
public float[] getSkyAngle()
```
    Provide array of Float results unit axis, angle (in radians) within allowed range of [0,3.1416] from inputOutput MFFloat field named skyAngle.
    
    Tooltip: [0,pi] The angle array values increase from 0.0 zenith (straight up) to pi/2=1.570796 (horizon) to pi=3.14159 (nadir).
    - Warning: you must have one more skyColor value than skyAngle values.
    - Warning: colors at skyAngle=0 are ignored. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getSkyAngle in interface Background
    
    Specified by:
    
    getSkyAngle in interface X3DBackgroundNode
    
    Returns:
    
    value of skyAngle field
  - getSkyAngleList
```
public java.util.ArrayList<java.lang.Float> getSkyAngleList()
```
    Utility method to get ArrayList value of MFFloat skyAngle field, similar to getSkyAngle().
    
    Returns:
    
    value of skyAngle field
  - setSkyAngle
```
public BackgroundObject setSkyAngle(float[] newValue)
```
    Assign Float array unit axis, angle (in radians) within allowed range of [0,3.1416] to inputOutput MFFloat field named skyAngle.
    
    Tooltip: [0,pi] The angle array values increase from 0.0 zenith (straight up) to pi/2=1.570796 (horizon) to pi=3.14159 (nadir). Warning: you must have one more skyColor value than skyAngle values. Warning: colors at skyAngle=0 are ignored. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setSkyAngle in interface Background
    
    Specified by:
    
    setSkyAngle in interface X3DBackgroundNode
    
    Parameters:
    
    newValue - is new value for the skyAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setSkyAngle
```
public BackgroundObject setSkyAngle(MFFloatObject newValue)
```
    Assign typed object value to MFFloat skyAngle field, similar to setSkyAngle(float[]).
    
    Parameters:
    
    newValue - is new value for the skyAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setSkyAngle
```
public BackgroundObject setSkyAngle(java.util.ArrayList<java.lang.Float> newValue)
```
    Assign ArrayList value of MFFloat skyAngle field, similar to setSkyAngle(float[]).
    
    Parameters:
    
    newValue - is new value for the skyAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearSkyAngle
```
public BackgroundObject clearSkyAngle()
```
    Utility method to clear MFFloat value of skyAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - setSkyAngle
```
public BackgroundObject setSkyAngle(int[] newValue)
```
    Assign floating-point array value of MFFloat skyAngle field, similar to setSkyAngle(float[]).
    
    Parameters:
    
    newValue - is new value for the skyAngle field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - getSkyColor
```
public float[] getSkyColor()
```
    Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput MFColor field named skyColor.
    
    Tooltip: Color of the sky at various angles on the sky sphere. First value is color of sky at 0.0 radians representing the zenith (straight up).
    - Hint: setting the same color at two consecutive angles produces a solid color band.
    - Warning: you must have one more skyColor value than skyAngle values. Interchange profile hint: only one color might be rendered, others can be ignored.
    - Hint: X3D Scene Authoring Hints, Color
      http://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#Color
    Specified by:
    
    getSkyColor in interface Background
    
    Specified by:
    
    getSkyColor in interface X3DBackgroundNode
    
    Returns:
    
    value of skyColor field
  - setSkyColor
```
public BackgroundObject setSkyColor(float[] newValue)
```
    Assign 3-tuple float array using RGB values [0..1] using RGB values [0..1] to inputOutput MFColor field named skyColor.
    
    Tooltip: Color of the sky at various angles on the sky sphere. First value is color of sky at 0.0 radians representing the zenith (straight up). Hint: setting the same color at two consecutive angles produces a solid color band. Warning: you must have one more skyColor value than skyAngle values. Interchange profile hint: only one color might be rendered, others can be ignored. Hint: X3D Scene Authoring Hints, Color http://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#Color
    
    Specified by:
    
    setSkyColor in interface Background
    
    Specified by:
    
    setSkyColor in interface X3DBackgroundNode
    
    Parameters:
    
    newValue - is new value for the skyColor field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setSkyColor
```
public BackgroundObject setSkyColor(MFColorObject newValue)
```
    Assign typed object value to MFColor skyColor field, similar to setSkyColor(float[]).
    
    Parameters:
    
    newValue - is new value for the skyColor field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - getTopUrl
```
public java.lang.String[] getTopUrl()
```
    Provide array of String results from inputOutput MFString field named topUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry.
    - Hint: MFString arrays can have multiple values, so separate each individual string by quote marks
      "http://www.web3d.org"
      "http://www.web3d.org/about" "etc."
    - Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity).
    - Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches.
    - Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    Specified by:
    
    getTopUrl in interface Background
    
    Returns:
    
    value of topUrl field
  - getTopUrlList
```
public java.util.ArrayList<java.lang.String> getTopUrlList()
```
    Utility method to get ArrayList value of MFString topUrl field, similar to getTopUrl().
    
    Returns:
    
    value of topUrl field
  - setTopUrl
```
public BackgroundObject setTopUrl(java.lang.String[] newValue)
```
    Assign String array to inputOutput MFString field named topUrl.
    
    Tooltip: Image background panorama between ground/sky backdrop and scene's geometry. Hint: MFString arrays can have multiple values, so separate each individual string by quote marks "http://www.web3d.org" "http://www.web3d.org/about" "etc." Hint: alternative XML encoding for quotation mark " is " (which is an example of a character entity). Warning: strictly match directory and filename capitalization for http links! This is important for portability. Some operating systems are forgiving of capitalization mismatches, but http/https url addresses and paths in Unix-based operating systems are all case sensitive and intolerant of uppercase/lowercase mismatches. Hint: can replace embedded blank(s) in url queries with %20 for each blank character. Interchange profile hint: this field may be ignored, applying the default value regardless.
    
    Specified by:
    
    setTopUrl in interface Background
    
    Parameters:
    
    newValue - is new value for the topUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setTopUrl
```
public BackgroundObject setTopUrl(MFStringObject newValue)
```
    Assign typed object value to MFString topUrl field, similar to setTopUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the topUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setTopUrl
```
public BackgroundObject setTopUrl(SFStringObject newValue)
```
    Assign single SFString object value to MFString topUrl field, similar to setTopUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the topUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setTopUrl
```
public BackgroundObject setTopUrl(java.lang.String newValue)
```
    Assign singleton String value to MFString topUrl field, similar to setTopUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the topUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setTopUrl
```
public BackgroundObject setTopUrl(java.util.ArrayList<java.lang.String> newValue)
```
    Assign ArrayList value of MFString topUrl field, similar to setTopUrl(String[]).
    
    Parameters:
    
    newValue - is new value for the topUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - clearTopUrl
```
public BackgroundObject clearTopUrl()
```
    Utility method to clear MFString value of topUrl field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - getTransparency
```
public float getTransparency()
```
    Provide float value within allowed range of [0,1] from inputOutput SFFloat field named transparency.
    
    Tooltip: [0,1] (X3D version 3.2 or later) how "clear" the background is, allows underlying page to show through: 1.0 is completely transparent, 0.0 is completely opaque. Interchange profile hint: transparency < .5 opaque, transparency > .5 transparent. *
    
    Specified by:
    
    getTransparency in interface Background
    
    Specified by:
    
    getTransparency in interface X3DBackgroundNode
    
    Returns:
    
    value of transparency field
  - setTransparency
```
public BackgroundObject setTransparency(float newValue)
```
    Assign float value within allowed range of [0,1] to inputOutput SFFloat field named transparency.
    
    Tooltip: [0,1] (X3D version 3.2 or later) how "clear" the background is, allows underlying page to show through: 1.0 is completely transparent, 0.0 is completely opaque. Interchange profile hint: transparency < .5 opaque, transparency > .5 transparent.
    
    Specified by:
    
    setTransparency in interface Background
    
    Specified by:
    
    setTransparency in interface X3DBackgroundNode
    
    Parameters:
    
    newValue - is new value for the transparency field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setTransparency
```
public BackgroundObject setTransparency(SFFloatObject newValue)
```
    Assign typed object value to SFFloat transparency field, similar to setTransparency(float).
    
    Parameters:
    
    newValue - is new value for the transparency field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setDEF
```
public final BackgroundObject setDEF(java.lang.String newValue)
```
    Assign String value to inputOutput SFString field named DEF.
    
    Tooltip: DEF defines a unique ID name for this node, referenceable by other nodes. Hint: descriptive DEF names improve clarity and help document a model. Hint: well-defined names can simplify design and debugging through improved author understanding. Hint: X3D Scene Authoring Hints, Naming Conventions http://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#NamingConventions
    
    Note that setting the DEF value clears the USE value.
    
    Specified by:
    
    setDEF in interface X3DBindableNode
    
    Specified by:
    
    setDEF in interface X3DChildNode
    
    Specified by:
    
    setDEF in interface X3DNode
    
    Specified by:
    
    setDEF in interface Background
    
    Specified by:
    
    setDEF in interface X3DBackgroundNode
    
    Specified by:
    
    setDEF in class X3DConcreteNode
    
    Parameters:
    
    newValue - is new value for the DEF field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setDEF
```
public BackgroundObject setDEF(SFStringObject newValue)
```
    Assign typed object value to SFString DEF field, similar to setDEF(String).
    
    Parameters:
    
    newValue - is new value for the DEF field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setUSE
```
public final BackgroundObject setUSE(java.lang.String newValue)
```
    Assign String value to inputOutput SFString field named USE.
    
    Tooltip: USE means reuse an already DEF-ed node ID, excluding all child nodes and all other attributes (except for containerField, which can have a different value). Hint: USE references to previously defined DEF geometry (instead of duplicating nodes) can improve performance. Warning: do NOT include any child nodes, a DEF attribute, or any other attribute values (except for containerField) when defining a USE attribute. Warning: each USE value must match a corresponding DEF value that is defined earlier in the scene.
    
    Note: each USE node is still an independent object, with the USE value matching the DEF value in the preceding object.
    
    Warning: invoking the setUSE() method on this node resets all other fields to their default values (except for containerField) and also releases all child nodes.
    
    Warning: no other operations can be performed to modify a USE node other than setting an alternate containerField value.
    
    Specified by:
    
    setUSE in interface X3DBindableNode
    
    Specified by:
    
    setUSE in interface X3DChildNode
    
    Specified by:
    
    setUSE in interface X3DNode
    
    Specified by:
    
    setUSE in interface Background
    
    Specified by:
    
    setUSE in interface X3DBackgroundNode
    
    Specified by:
    
    setUSE in class X3DConcreteNode
    
    Parameters:
    
    newValue - is new value for the USE field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setUSE
```
public BackgroundObject setUSE(SFStringObject newValue)
```
    Assign typed object value to SFString USE field, similar to setUSE(String).
    
    Parameters:
    
    newValue - is new value for the USE field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setCssClass
```
public final BackgroundObject setCssClass(java.lang.String newValue)
```
    Assign String value to inputOutput SFString field named class.
    
    Tooltip: The class attribute is a space-separated list of classes, reserved for use by CSS cascading stylesheets. Warning: currently the class attribute is only supported in XML encoding of X3D scenes. Hint: W3C Cascading Style Sheets https://www.w3.org/Style/CSS
    
    Specified by:
    
    setCssClass in interface X3DBindableNode
    
    Specified by:
    
    setCssClass in interface X3DChildNode
    
    Specified by:
    
    setCssClass in interface X3DNode
    
    Specified by:
    
    setCssClass in interface Background
    
    Specified by:
    
    setCssClass in interface X3DBackgroundNode
    
    Specified by:
    
    setCssClass in class X3DConcreteNode
    
    Parameters:
    
    newValue - is new value for the class field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
    
    See Also:
    
    W3C Cascading Style Sheets
  - setCssClass
```
public BackgroundObject setCssClass(SFStringObject newValue)
```
    Assign typed object value to SFString cssClass field, similar to setCssClass(String).
    
    Parameters:
    
    newValue - is new value for the class field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - setIS
```
public BackgroundObject setIS(ISObject newValue)
```
    Assign field named IS for establishing IS/connect field connections between ProtoInterface fields and internal ProtoBody nodes. The IS statement connects node fields defined inside a ProtoBody declaration back to corresponding ProtoInterface fields.
    
    Specified by:
    
    setIS in class X3DConcreteNode
    
    Parameters:
    
    newValue - is new value for the description field.
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
    
    See Also:
    
    X3D Tooltips: IS, X3D Tooltips: connect
  - getIS
```
public ISObject getIS()
```
    Provide field named IS for establishing IS/connect field connections between ProtoInterface fields and internal ProtoBody nodes. The IS statement connects node fields defined inside a ProtoBody declaration back to corresponding ProtoInterface fields.
    
    Specified by:
    
    getIS in class X3DConcreteNode
    
    Returns:
    
    current ISObject, if any.
    
    See Also:
    
    X3D Tooltips: IS, X3D Tooltips: connect
  - setUSE
```
public BackgroundObject setUSE(BackgroundObject DEFnode)
```
    Assign a USE reference to another DEF node of same node type, similar to setUSE(String).
    
    Warning: note that the setUSE() method on this node resets all other fields to their default values (except for containerField) and also releases all child nodes.
    
    Warning: no other operations can be performed to modify a USE node other than setting an alternate containerField value.
    
    Parameters:
    
    DEFnode - must have a DEF value defined
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
  - addComments
```
public BackgroundObject addComments(java.lang.String newComment)
```
    Add comment as String to contained commentsList.
    
    Specified by:
    
    addComments in class X3DConcreteElement
    
    Parameters:
    
    newComment - initial value
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - addComments
```
public BackgroundObject addComments(java.lang.String[] newComments)
```
    Add comments as String[] array to contained commentsList.
    
    Specified by:
    
    addComments in class X3DConcreteElement
    
    Parameters:
    
    newComments - array of comments
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - addComments
```
public BackgroundObject addComments(CommentsBlock newCommentsBlock)
```
    Add CommentsBlock to contained commentsList.
    
    Specified by:
    
    addComments in class X3DConcreteElement
    
    Parameters:
    
    newCommentsBlock - block of comments to add
    
    Returns:
    
    BackgroundObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
  - toStringX3D
```
public java.lang.String toStringX3D(int indentLevel)
```
    Recursive method to provide X3D string serialization of this model subgraph, utilizing XML encoding and conforming to X3D Canonical Form.
    
    Specified by:
    
    toStringX3D in class X3DConcreteElement
    
    Parameters:
    
    indentLevel - number of levels of indentation for this element
    
    Returns:
    
    X3D string
    
    See Also:
    
    X3DObject.FILE_EXTENSION_X3D, X3DObject.FILE_EXTENSION_XML, X3DObject.toStringXML(), X3DObject.toFileXML(String), X3DObject.toFileX3D(String), X3D XML Encoding, X3D Compressed Binary Encoding: X3D Canonical Form
  - toStringClassicVRML
```
public java.lang.String toStringClassicVRML(int indentLevel)
```
    Recursive method to provide ClassicVRML string serialization.
    
    Specified by:
    
    toStringClassicVRML in class X3DConcreteElement
    
    Parameters:
    
    indentLevel - number of levels of indentation for this element
    
    Returns:
    
    ClassicVRML string
    
    See Also:
    
    X3DObject.FILE_EXTENSION_CLASSICVRML, X3D Resources: Virtual Reality Modeling Language (VRML) 97, Extensible 3D (X3D) encodings Part 2: Classic VRML encoding, Extensible 3D (X3D) encodings Part 2: Classic VRML encoding, Annex A: Grammar
  - toStringVRML97
```
public java.lang.String toStringVRML97(int indentLevel)
```
    Recursive method to provide VRML97 string serialization.
    
    Specified by:
    
    toStringVRML97 in class X3DConcreteElement
    
    Parameters:
    
    indentLevel - number of levels of indentation for this element
    
    Returns:
    
    VRML97 string
    
    See Also:
    
    X3DObject.FILE_EXTENSION_VRML97, X3D Resources: Virtual Reality Modeling Language (VRML) 97, Virtual Reality Modeling Language (VRML) 97 specification, VRML 97 v2.1 Amendment
  - findElementByNameValue
```
public X3DConcreteElement findElementByNameValue(java.lang.String nameValue)
```
    Recursive method to provide object reference to node or statement by name attribute, if found as part of this element or in a contained element. Elements with name fields include meta, Metadata* nodes, field/fieldValue, ProtoDeclare/ExternProtoDeclare/ProtoInstance, HAnim nodes.
    
    Warning: first start with findAncestorSceneObject() to check entire scene graph, or findAncestorX3DObject() to check entire model document.
    
    Warning: more than one element may be found that has the same name, this method does not handle that case.
    
    Specified by:
    
    findElementByNameValue in class X3DConcreteElement
    
    Parameters:
    
    nameValue - is value of the name field being searched for in this element and child elements(if any)
    
    Returns:
    
    object reference to found element, null otherwise
    
    See Also:
    
    findNodeByDEF(String), X3DConcreteElement.hasAncestorSceneObject(), X3DConcreteElement.findAncestorX3DObject()
  - findElementByNameValue
```
public X3DConcreteElement findElementByNameValue(java.lang.String nameValue,
                                                 java.lang.String elementName)
```
    Recursive method to provide object reference to node or statement by name attribute, if found as part of this element or in a contained element. Elements with name fields include meta, Metadata* nodes, field/fieldValue, ProtoDeclare/ExternProtoDeclare/ProtoInstance, HAnim nodes.
    
    Warning: first start with findAncestorSceneObject() to check entire scene graph, or findAncestorX3DObject() to check entire model document.
    
    Warning: more than one element may be found that has the same name, this method does not handle that case.
    
    Specified by:
    
    findElementByNameValue in class X3DConcreteElement
    
    Parameters:
    
    nameValue - is value of the name field being searched for in this element and child elements(if any)
    
    elementName - identifies the element of interest (meta MetadataString ProtoDeclare CADassembly ProtoInstance HAnimHumanoid etc.)
    
    Returns:
    
    object reference to found element, null otherwise
    
    See Also:
    
    findNodeByDEF(String), X3DConcreteElement.hasAncestorSceneObject(), X3DConcreteElement.findAncestorX3DObject()
  - hasElementByNameValue
```
public boolean hasElementByNameValue(java.lang.String nameValue,
                                     java.lang.String elementName)
```
    Recursive method to determine whether node or statement with given name attribute is found, meaning both objects are attached to same scene graph.
    
    Parameters:
    
    nameValue - is value of the name field being searched for in this element and child elements(if any)
    
    elementName - identifies the element of interest (meta MetadataString ProtoDeclare CADassembly ProtoInstance HAnimHumanoid etc.)
    
    Returns:
    
    whether node is found
    
    See Also:
    
    findElementByNameValue(String, String)
  - findNodeByDEF
```
public X3DConcreteNode findNodeByDEF(java.lang.String DEFvalue)
```
    Recursive method to provide object reference to node by DEF, if found as this node or in a contained node.
    
    Warning: first start with findAncestorSceneObject() to check entire scene graph, or findAncestorX3DObject() to check entire model document.
    
    Warning: more than one element may be found that has the same DEF, this method does not handle that case.
    
    Specified by:
    
    findNodeByDEF in class X3DConcreteElement
    
    Parameters:
    
    DEFvalue - is value of the name field being searched for in this element and child elements(if any)
    
    Returns:
    
    object reference to found node, null otherwise
    
    See Also:
    
    findElementByNameValue(String), X3DConcreteElement.hasAncestorSceneObject(), X3DConcreteElement.findAncestorX3DObject()
  - hasNodeByDEF
```
public boolean hasNodeByDEF(java.lang.String DEFvalue)
```
    Recursive method to determine whether node with DEFvalue is found, meaning both objects are attached to same scene graph.
    
    Parameters:
    
    DEFvalue - is value of the name field being searched for in this element and child elements(if any)
    
    Returns:
    
    whether node is found
    
    See Also:
    
    findNodeByDEF(String)
  - validate
```
public java.lang.String validate()
```
    Recursive method to validate this element plus all contained nodes and statements.
    
    Specified by:
    
    validate in class X3DConcreteElement
    
    Returns:
    
    validation results (if any)

Class BackgroundObject

Field Summary

Fields inherited from class org.web3d.x3d.jsail.X3DConcreteNode

Fields inherited from class org.web3d.x3d.jsail.X3DConcreteElement

Constructor Summary

Method Summary

Methods inherited from class org.web3d.x3d.jsail.X3DConcreteNode

Methods inherited from class org.web3d.x3d.jsail.X3DConcreteElement

Methods inherited from class java.lang.Object

Field Detail

NAME

COMPONENT

LEVEL

BACKURL_DEFAULT_VALUE

BOTTOMURL_DEFAULT_VALUE

FRONTURL_DEFAULT_VALUE

LEFTURL_DEFAULT_VALUE

RIGHTURL_DEFAULT_VALUE

SKYCOLOR_DEFAULT_VALUE

TOPURL_DEFAULT_VALUE

TRANSPARENCY_DEFAULT_VALUE

containerField_DEFAULT_VALUE

fromField_BACKURL

toField_BACKURL

fromField_BINDTIME

fromField_BOTTOMURL

toField_BOTTOMURL

fromField_FRONTURL

toField_FRONTURL

fromField_GROUNDANGLE

toField_GROUNDANGLE

fromField_GROUNDCOLOR

toField_GROUNDCOLOR

fromField_ISBOUND

fromField_LEFTURL

toField_LEFTURL

fromField_METADATA

toField_METADATA

fromField_RIGHTURL

toField_RIGHTURL

toField_SET_BIND

fromField_SKYANGLE

toField_SKYANGLE

fromField_SKYCOLOR

toField_SKYCOLOR

fromField_TOPURL

toField_TOPURL

fromField_TRANSPARENCY

toField_TRANSPARENCY

Constructor Detail

BackgroundObject

BackgroundObject

Method Detail

getElementName

getComponent

getComponentLevel

getFieldType

getAccessType

initialize

getBackUrl

getBackUrlList

setBackUrl

setBackUrl

setBackUrl

setBackUrl

setBackUrl

clearBackUrl

getBindTime

getBottomUrl

getBottomUrlList

setBottomUrl

setBottomUrl

setBottomUrl

setBottomUrl

setBottomUrl

clearBottomUrl

getFrontUrl

getFrontUrlList

setFrontUrl

setFrontUrl