Class TwoSidedMaterialObject

java.lang.Object
org.web3d.x3d.jsail.X3DConcreteElement
org.web3d.x3d.jsail.X3DConcreteNode
org.web3d.x3d.jsail.Shape.TwoSidedMaterialObject
All Implemented Interfaces:
X3DNode, TwoSidedMaterial, X3DAppearanceChildNode, X3DMaterialNode

public class TwoSidedMaterialObject
extends X3DConcreteNode
implements TwoSidedMaterial
TwoSidedMaterial specifies surface rendering properties for associated geometry nodes, for outer (front) and inner (back) sides of polygons.

X3D node tooltip: (X3D version 3.2 or later) [X3DMaterialNode] TwoSidedMaterial specifies surface rendering properties for associated geometry nodes, for outer (front) and inner (back) sides of polygons. Material attributes are used by the X3D lighting equations during rendering.
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: TwoSidedMaterial, X3D Tooltips: TwoSidedMaterial, X3D Scene Authoring Hints
  • Field Details

  • Constructor Details

    • TwoSidedMaterialObject

      public TwoSidedMaterialObject()
      Constructor for TwoSidedMaterialObject to initialize member variables with default values.
    • TwoSidedMaterialObject

      public TwoSidedMaterialObject​(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 Details

    • getElementName

      public final java.lang.String getElementName()
      Provides name of this element: TwoSidedMaterial
      Specified by:
      getElementName in class X3DConcreteElement
      Returns:
      name of this element
    • getComponent

      public final java.lang.String getComponent()
      Defines X3D component for the TwoSidedMaterial element: Shape
      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: 4
      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
    • getContainerFieldDefault

      public final java.lang.String getContainerFieldDefault()
      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.
      Specified by:
      getContainerFieldDefault in class X3DConcreteNode
      Returns:
      default containerField value
      See Also:
      X3D Scene Authoring Hints: containerField, X3D Unified Object Model (X3DUOM)
    • initialize

      public final void initialize()
      Initialize all member variables to default values.
      Overrides:
      initialize in class X3DConcreteNode
    • getAmbientIntensity

      public float getAmbientIntensity()
      Provide float value within allowed range of [0,1] from inputOutput SFFloat field named ambientIntensity.

      Tooltip: [0,1] how much ambient omnidirectional light is reflected from all light sources. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      getAmbientIntensity in interface TwoSidedMaterial
      Returns:
      value of ambientIntensity field
    • setAmbientIntensity

      public TwoSidedMaterialObject setAmbientIntensity​(float newValue)
      Accessor method to assign float value to inputOutput SFFloat field named ambientIntensity.

      Tooltip: [0,1] how much ambient omnidirectional light is reflected from all light sources. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      setAmbientIntensity in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the ambientIntensity field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setAmbientIntensity

      public TwoSidedMaterialObject setAmbientIntensity​(SFFloatObject newValue)
      Assign typed object value to SFFloat ambientIntensity field, similar to setAmbientIntensity(float).
      Parameters:
      newValue - is new value for the ambientIntensity field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setAmbientIntensity

      public TwoSidedMaterialObject setAmbientIntensity​(double newValue)
      Utility method: double-precision set-parameter accessor for X3D floating-point type, similar to setAmbientIntensity(float).
      Parameters:
      newValue - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getBackAmbientIntensity

      public float getBackAmbientIntensity()
      Provide float value within allowed range of [0,1] from inputOutput SFFloat field named backAmbientIntensity.

      Tooltip: [0,1] how much ambient omnidirectional light is reflected from all light sources. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      getBackAmbientIntensity in interface TwoSidedMaterial
      Returns:
      value of backAmbientIntensity field
    • setBackAmbientIntensity

      public TwoSidedMaterialObject setBackAmbientIntensity​(float newValue)
      Accessor method to assign float value to inputOutput SFFloat field named backAmbientIntensity.

      Tooltip: [0,1] how much ambient omnidirectional light is reflected from all light sources. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      setBackAmbientIntensity in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the backAmbientIntensity field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackAmbientIntensity

      public TwoSidedMaterialObject setBackAmbientIntensity​(SFFloatObject newValue)
      Assign typed object value to SFFloat backAmbientIntensity field, similar to setBackAmbientIntensity(float).
      Parameters:
      newValue - is new value for the backAmbientIntensity field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackAmbientIntensity

      public TwoSidedMaterialObject setBackAmbientIntensity​(double newValue)
      Utility method: double-precision set-parameter accessor for X3D floating-point type, similar to setBackAmbientIntensity(float).
      Parameters:
      newValue - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getBackDiffuseColor

      public float[] getBackDiffuseColor()
      Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput SFColor field named backDiffuseColor.

      Tooltip: [0,1] how much direct, angle-dependent light is reflected from all light sources.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      Specified by:
      getBackDiffuseColor in interface TwoSidedMaterial
      Returns:
      value of backDiffuseColor field
    • setBackDiffuseColor

      public TwoSidedMaterialObject setBackDiffuseColor​(float[] newValue)
      Accessor method to assign 3-tuple float array using RGB values [0..1] to inputOutput SFColor field named backDiffuseColor.

      Tooltip: [0,1] how much direct, angle-dependent light is reflected from all light sources.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      Specified by:
      setBackDiffuseColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the backDiffuseColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackDiffuseColor

      public TwoSidedMaterialObject setBackDiffuseColor​(SFColorObject newValue)
      Assign typed object value to SFColor backDiffuseColor field, similar to setBackDiffuseColor(float[]).
      Parameters:
      newValue - is new value for the backDiffuseColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackDiffuseColor

      public TwoSidedMaterialObject setBackDiffuseColor​(float red, float green, float blue)
      Assign values to SFColor backDiffuseColor field, similar to setBackDiffuseColor(float[]).
      Parameters:
      red - first component
      green - second component
      blue - third component
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackDiffuseColor

      public TwoSidedMaterialObject setBackDiffuseColor​(double red, double green, double blue)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setBackDiffuseColor(float[]).
      Parameters:
      red - first component [0..1]
      green - second component [0..1]
      blue - third component [0..1]
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackDiffuseColor

      public TwoSidedMaterialObject setBackDiffuseColor​(double[] newArray)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setBackDiffuseColor(float[]).
      Parameters:
      newArray - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getBackEmissiveColor

      public float[] getBackEmissiveColor()
      Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput SFColor field named backEmissiveColor.

      Tooltip: [0,1] how much glowing light is emitted from this object.
      • Hint: emissiveColors glow even when all lights are off.
      • Hint: reset diffuseColor from default (.8 .8 .8) to (0 0 0) to avoid washout.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      • Warning: bright emissiveColor values can wash out other colors and some textures.
      Specified by:
      getBackEmissiveColor in interface TwoSidedMaterial
      Returns:
      value of backEmissiveColor field
    • setBackEmissiveColor

      public TwoSidedMaterialObject setBackEmissiveColor​(float[] newValue)
      Accessor method to assign 3-tuple float array using RGB values [0..1] to inputOutput SFColor field named backEmissiveColor.

      Tooltip: [0,1] how much glowing light is emitted from this object.
      • Hint: emissiveColors glow even when all lights are off.
      • Hint: reset diffuseColor from default (.8 .8 .8) to (0 0 0) to avoid washout.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      • Warning: bright emissiveColor values can wash out other colors and some textures.
      Specified by:
      setBackEmissiveColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the backEmissiveColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackEmissiveColor

      public TwoSidedMaterialObject setBackEmissiveColor​(SFColorObject newValue)
      Assign typed object value to SFColor backEmissiveColor field, similar to setBackEmissiveColor(float[]).
      Parameters:
      newValue - is new value for the backEmissiveColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackEmissiveColor

      public TwoSidedMaterialObject setBackEmissiveColor​(float red, float green, float blue)
      Assign values to SFColor backEmissiveColor field, similar to setBackEmissiveColor(float[]).
      Parameters:
      red - first component
      green - second component
      blue - third component
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackEmissiveColor

      public TwoSidedMaterialObject setBackEmissiveColor​(double red, double green, double blue)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setBackEmissiveColor(float[]).
      Parameters:
      red - first component [0..1]
      green - second component [0..1]
      blue - third component [0..1]
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackEmissiveColor

      public TwoSidedMaterialObject setBackEmissiveColor​(double[] newArray)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setBackEmissiveColor(float[]).
      Parameters:
      newArray - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getBackShininess

      public float getBackShininess()
      Provide float value within allowed range of [0,1] from inputOutput SFFloat field named backShininess.

      Tooltip: [0,1] Lower shininess values provide soft specular glows, while higher values result in sharper, smaller highlights. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      getBackShininess in interface TwoSidedMaterial
      Returns:
      value of backShininess field
    • setBackShininess

      public TwoSidedMaterialObject setBackShininess​(float newValue)
      Accessor method to assign float value to inputOutput SFFloat field named backShininess.

      Tooltip: [0,1] Lower shininess values provide soft specular glows, while higher values result in sharper, smaller highlights. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      setBackShininess in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the backShininess field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackShininess

      public TwoSidedMaterialObject setBackShininess​(SFFloatObject newValue)
      Assign typed object value to SFFloat backShininess field, similar to setBackShininess(float).
      Parameters:
      newValue - is new value for the backShininess field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackShininess

      public TwoSidedMaterialObject setBackShininess​(double newValue)
      Utility method: double-precision set-parameter accessor for X3D floating-point type, similar to setBackShininess(float).
      Parameters:
      newValue - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getBackSpecularColor

      public float[] getBackSpecularColor()
      Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput SFColor field named backSpecularColor.

      Tooltip: [0,1] specular highlights are brightness reflections (example: shiny spots on an apple). Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      getBackSpecularColor in interface TwoSidedMaterial
      Returns:
      value of backSpecularColor field
    • setBackSpecularColor

      public TwoSidedMaterialObject setBackSpecularColor​(float[] newValue)
      Accessor method to assign 3-tuple float array using RGB values [0..1] to inputOutput SFColor field named backSpecularColor.

      Tooltip: [0,1] specular highlights are brightness reflections (example: shiny spots on an apple). Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      setBackSpecularColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the backSpecularColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackSpecularColor

      public TwoSidedMaterialObject setBackSpecularColor​(SFColorObject newValue)
      Assign typed object value to SFColor backSpecularColor field, similar to setBackSpecularColor(float[]).
      Parameters:
      newValue - is new value for the backSpecularColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackSpecularColor

      public TwoSidedMaterialObject setBackSpecularColor​(float red, float green, float blue)
      Assign values to SFColor backSpecularColor field, similar to setBackSpecularColor(float[]).
      Parameters:
      red - first component
      green - second component
      blue - third component
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackSpecularColor

      public TwoSidedMaterialObject setBackSpecularColor​(double red, double green, double blue)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setBackSpecularColor(float[]).
      Parameters:
      red - first component [0..1]
      green - second component [0..1]
      blue - third component [0..1]
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackSpecularColor

      public TwoSidedMaterialObject setBackSpecularColor​(double[] newArray)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setBackSpecularColor(float[]).
      Parameters:
      newArray - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getBackTransparency

      public float getBackTransparency()
      Provide float value within allowed range of [0,1] from inputOutput SFFloat field named backTransparency.

      Tooltip: [0,1] how "clear" an object is: 1.0 is completely transparent, 0.0 is completely opaque. Interchange profile hint: transparency < .5 opaque, transparency > .5 transparent. *
      Specified by:
      getBackTransparency in interface TwoSidedMaterial
      Returns:
      value of backTransparency field
    • setBackTransparency

      public TwoSidedMaterialObject setBackTransparency​(float newValue)
      Accessor method to assign float value to inputOutput SFFloat field named backTransparency.

      Tooltip: [0,1] how "clear" an object is: 1.0 is completely transparent, 0.0 is completely opaque. Interchange profile hint: transparency < .5 opaque, transparency > .5 transparent. *
      Specified by:
      setBackTransparency in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the backTransparency field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackTransparency

      public TwoSidedMaterialObject setBackTransparency​(SFFloatObject newValue)
      Assign typed object value to SFFloat backTransparency field, similar to setBackTransparency(float).
      Parameters:
      newValue - is new value for the backTransparency field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setBackTransparency

      public TwoSidedMaterialObject setBackTransparency​(double newValue)
      Utility method: double-precision set-parameter accessor for X3D floating-point type, similar to setBackTransparency(float).
      Parameters:
      newValue - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getDiffuseColor

      public float[] getDiffuseColor()
      Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput SFColor field named diffuseColor.

      Tooltip: [0,1] how much direct, angle-dependent light is reflected from all light sources.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      Specified by:
      getDiffuseColor in interface TwoSidedMaterial
      Returns:
      value of diffuseColor field
    • setDiffuseColor

      public TwoSidedMaterialObject setDiffuseColor​(float[] newValue)
      Accessor method to assign 3-tuple float array using RGB values [0..1] to inputOutput SFColor field named diffuseColor.

      Tooltip: [0,1] how much direct, angle-dependent light is reflected from all light sources.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      Specified by:
      setDiffuseColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the diffuseColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setDiffuseColor

      public TwoSidedMaterialObject setDiffuseColor​(SFColorObject newValue)
      Assign typed object value to SFColor diffuseColor field, similar to setDiffuseColor(float[]).
      Parameters:
      newValue - is new value for the diffuseColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setDiffuseColor

      public TwoSidedMaterialObject setDiffuseColor​(float red, float green, float blue)
      Assign values to SFColor diffuseColor field, similar to setDiffuseColor(float[]).
      Parameters:
      red - first component
      green - second component
      blue - third component
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setDiffuseColor

      public TwoSidedMaterialObject setDiffuseColor​(double red, double green, double blue)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setDiffuseColor(float[]).
      Parameters:
      red - first component [0..1]
      green - second component [0..1]
      blue - third component [0..1]
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setDiffuseColor

      public TwoSidedMaterialObject setDiffuseColor​(double[] newArray)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setDiffuseColor(float[]).
      Parameters:
      newArray - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getEmissiveColor

      public float[] getEmissiveColor()
      Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput SFColor field named emissiveColor.

      Tooltip: [0,1] how much glowing light is emitted from this object.
      • Hint: emissiveColors glow even when all lights are off.
      • Hint: reset diffuseColor from default (.8 .8 .8) to (0 0 0) to avoid washout.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      • Warning: bright emissiveColor values can wash out other colors and some textures.
      Specified by:
      getEmissiveColor in interface TwoSidedMaterial
      Returns:
      value of emissiveColor field
    • setEmissiveColor

      public TwoSidedMaterialObject setEmissiveColor​(float[] newValue)
      Accessor method to assign 3-tuple float array using RGB values [0..1] to inputOutput SFColor field named emissiveColor.

      Tooltip: [0,1] how much glowing light is emitted from this object.
      • Hint: emissiveColors glow even when all lights are off.
      • Hint: reset diffuseColor from default (.8 .8 .8) to (0 0 0) to avoid washout.
      • Hint: only emissiveColor affects IndexedLineSet, LineSet and PointSet.
      • Warning: bright emissiveColor values can wash out other colors and some textures.
      Specified by:
      setEmissiveColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the emissiveColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setEmissiveColor

      public TwoSidedMaterialObject setEmissiveColor​(SFColorObject newValue)
      Assign typed object value to SFColor emissiveColor field, similar to setEmissiveColor(float[]).
      Parameters:
      newValue - is new value for the emissiveColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setEmissiveColor

      public TwoSidedMaterialObject setEmissiveColor​(float red, float green, float blue)
      Assign values to SFColor emissiveColor field, similar to setEmissiveColor(float[]).
      Parameters:
      red - first component
      green - second component
      blue - third component
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setEmissiveColor

      public TwoSidedMaterialObject setEmissiveColor​(double red, double green, double blue)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setEmissiveColor(float[]).
      Parameters:
      red - first component [0..1]
      green - second component [0..1]
      blue - third component [0..1]
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setEmissiveColor

      public TwoSidedMaterialObject setEmissiveColor​(double[] newArray)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setEmissiveColor(float[]).
      Parameters:
      newArray - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getIS

      public ISObject getIS()
      Provide ISObject instance (using a properly typed node) from inputOutput SFNode field IS.
      Specified by:
      getIS in class X3DConcreteNode
      Returns:
      value of IS field
      See Also:
      X3D Tooltips: IS, X3D Tooltips: connect
    • setIS

      public TwoSidedMaterialObject setIS​(ISObject newValue)
      Accessor method to assign ISObject instance (using a properly typed node) to inputOutput SFNode field IS.
      Specified by:
      setIS in class X3DConcreteNode
      Parameters:
      newValue - is new value for the IS field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
      See Also:
      X3D Tooltips: IS, X3D Tooltips: connect
    • clearIS

      public TwoSidedMaterialObject clearIS()
      Utility method to clear SFNode value of IS field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
    • hasIS

      public boolean hasIS()
      Indicate whether an object is available for inputOutput SFNode field IS.
      Returns:
      whether a concrete statement or CommentsBlock is available.
      See Also:
      getIS()
    • getMetadata

      public X3DMetadataObject getMetadata()
      Provide X3DMetadataObject instance (using a properly typed node) from inputOutput SFNode field metadata.
      Specified by:
      getMetadata in interface TwoSidedMaterial
      Specified by:
      getMetadata in interface X3DAppearanceChildNode
      Specified by:
      getMetadata in interface X3DMaterialNode
      Specified by:
      getMetadata in interface X3DNode
      Returns:
      value of metadata field
      See Also:
      getMetadataProtoInstance(), X3D Scene Authoring Hints: Metadata Nodes
    • setMetadata

      public TwoSidedMaterialObject setMetadata​(X3DMetadataObject newValue)
      Accessor method to assign X3DMetadataObject instance (using a properly typed node) to inputOutput SFNode field metadata.
      Specified by:
      setMetadata in interface TwoSidedMaterial
      Specified by:
      setMetadata in interface X3DAppearanceChildNode
      Specified by:
      setMetadata in interface X3DMaterialNode
      Specified by:
      setMetadata in interface X3DNode
      Specified by:
      setMetadata in class X3DConcreteNode
      Parameters:
      newValue - is new value for the metadata field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
      See Also:
      setMetadata(ProtoInstanceObject), X3D Scene Authoring Hints: Metadata Nodes
    • clearMetadata

      public TwoSidedMaterialObject clearMetadata()
      Utility method to clear SFNode value of metadata field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
    • setMetadata

      public TwoSidedMaterialObject setMetadata​(ProtoInstanceObject newValue)
      Assign ProtoInstance (using a properly typed node) to inputOutput SFNode field metadata.
      Specified by:
      setMetadata in class X3DConcreteNode
      Parameters:
      newValue - is new value for the metadata field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
      See Also:
      setMetadata(X3DMetadataObject)
    • 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
    • getSeparateBackColor

      public boolean getSeparateBackColor()
      Provide boolean value from inputOutput SFBool field named separateBackColor.

      Tooltip: separateBackColor determines whether separate Material values are used for back faces.
      • Warning: backface Material values are ignored unless you set separateBackColor='true'.
      Specified by:
      getSeparateBackColor in interface TwoSidedMaterial
      Returns:
      value of separateBackColor field
    • setSeparateBackColor

      public TwoSidedMaterialObject setSeparateBackColor​(boolean newValue)
      Accessor method to assign boolean value to inputOutput SFBool field named separateBackColor.

      Tooltip: separateBackColor determines whether separate Material values are used for back faces.
      • Warning: backface Material values are ignored unless you set separateBackColor='true'.
      Specified by:
      setSeparateBackColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the separateBackColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setSeparateBackColor

      public TwoSidedMaterialObject setSeparateBackColor​(SFBoolObject newValue)
      Assign typed object value to SFBool separateBackColor field, similar to setSeparateBackColor(boolean).
      Parameters:
      newValue - is new value for the separateBackColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getShininess

      public float getShininess()
      Provide float value within allowed range of [0,1] from inputOutput SFFloat field named shininess.

      Tooltip: [0,1] Lower shininess values provide soft specular glows, while higher values result in sharper, smaller highlights. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      getShininess in interface TwoSidedMaterial
      Returns:
      value of shininess field
    • setShininess

      public TwoSidedMaterialObject setShininess​(float newValue)
      Accessor method to assign float value to inputOutput SFFloat field named shininess.

      Tooltip: [0,1] Lower shininess values provide soft specular glows, while higher values result in sharper, smaller highlights. Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      setShininess in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the shininess field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setShininess

      public TwoSidedMaterialObject setShininess​(SFFloatObject newValue)
      Assign typed object value to SFFloat shininess field, similar to setShininess(float).
      Parameters:
      newValue - is new value for the shininess field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setShininess

      public TwoSidedMaterialObject setShininess​(double newValue)
      Utility method: double-precision set-parameter accessor for X3D floating-point type, similar to setShininess(float).
      Parameters:
      newValue - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getSpecularColor

      public float[] getSpecularColor()
      Provide array of 3-tuple float results using RGB values [0..1] using RGB values [0..1] from inputOutput SFColor field named specularColor.

      Tooltip: [0,1] specular highlights are brightness reflections (example: shiny spots on an apple). Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      getSpecularColor in interface TwoSidedMaterial
      Returns:
      value of specularColor field
    • setSpecularColor

      public TwoSidedMaterialObject setSpecularColor​(float[] newValue)
      Accessor method to assign 3-tuple float array using RGB values [0..1] to inputOutput SFColor field named specularColor.

      Tooltip: [0,1] specular highlights are brightness reflections (example: shiny spots on an apple). Interchange profile hint: this field may be ignored, applying the default value regardless. *
      Specified by:
      setSpecularColor in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the specularColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setSpecularColor

      public TwoSidedMaterialObject setSpecularColor​(SFColorObject newValue)
      Assign typed object value to SFColor specularColor field, similar to setSpecularColor(float[]).
      Parameters:
      newValue - is new value for the specularColor field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setSpecularColor

      public TwoSidedMaterialObject setSpecularColor​(float red, float green, float blue)
      Assign values to SFColor specularColor field, similar to setSpecularColor(float[]).
      Parameters:
      red - first component
      green - second component
      blue - third component
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setSpecularColor

      public TwoSidedMaterialObject setSpecularColor​(double red, double green, double blue)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setSpecularColor(float[]).
      Parameters:
      red - first component [0..1]
      green - second component [0..1]
      blue - third component [0..1]
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setSpecularColor

      public TwoSidedMaterialObject setSpecularColor​(double[] newArray)
      Utility method: double-precision set-parameters accessor for X3D floating-point type, similar to setSpecularColor(float[]).
      Parameters:
      newArray - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getTransparency

      public float getTransparency()
      Provide float value within allowed range of [0,1] from inputOutput SFFloat field named transparency.

      Tooltip: [0,1] how "clear" an object is: 1.0 is completely transparent, 0.0 is completely opaque. Interchange profile hint: transparency < .5 opaque, transparency > .5 transparent. *
      Specified by:
      getTransparency in interface TwoSidedMaterial
      Returns:
      value of transparency field
    • setTransparency

      public TwoSidedMaterialObject setTransparency​(float newValue)
      Accessor method to assign float value to inputOutput SFFloat field named transparency.

      Tooltip: [0,1] how "clear" an object is: 1.0 is completely transparent, 0.0 is completely opaque. Interchange profile hint: transparency < .5 opaque, transparency > .5 transparent. *
      Specified by:
      setTransparency in interface TwoSidedMaterial
      Parameters:
      newValue - is new value for the transparency field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setTransparency

      public TwoSidedMaterialObject 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:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setTransparency

      public TwoSidedMaterialObject setTransparency​(double newValue)
      Utility method: double-precision set-parameter accessor for X3D floating-point type, similar to setTransparency(float).
      Parameters:
      newValue - is new value for field
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getDEF

      public java.lang.String getDEF()
      Provide String value from inputOutput SFString field named DEF.

      Tooltip: DEF defines a unique ID name for this node, referenceable by other nodes.
      Overrides:
      getDEF in class X3DConcreteNode
      Returns:
      value of DEF field
      See Also:
      X3D Scene Authoring Hints: Naming Conventions
    • setDEF

      public final TwoSidedMaterialObject setDEF​(java.lang.String newValue)
      Accessor method to assign String value to inputOutput SFString field named DEF.

      Tooltip: DEF defines a unique ID name for this node, referenceable by other nodes.

      Note that setting the DEF value clears the USE value.
      Specified by:
      setDEF in class X3DConcreteNode
      Parameters:
      newValue - is new value for the DEF field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setDEF

      public TwoSidedMaterialObject 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:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getUSE

      public java.lang.String getUSE()
      Provide String value from 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.
      Overrides:
      getUSE in class X3DConcreteNode
      Returns:
      value of USE field
      See Also:
      X3D Scene Authoring Hints: Naming Conventions
    • setUSE

      public final TwoSidedMaterialObject setUSE​(java.lang.String newValue)
      Accessor method to 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 class X3DConcreteNode
      Parameters:
      newValue - is new value for the USE field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setUSE

      public TwoSidedMaterialObject 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:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • getCssClass

      public java.lang.String getCssClass()
      Provide String value from 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
      Overrides:
      getCssClass in class X3DConcreteNode
      Returns:
      value of class field
      See Also:
      W3C Cascading Style Sheets
    • setCssClass

      public final TwoSidedMaterialObject setCssClass​(java.lang.String newValue)
      Accessor method to 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 class X3DConcreteNode
      Parameters:
      newValue - is new value for the class field.
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
      See Also:
      W3C Cascading Style Sheets
    • setCssClass

      public TwoSidedMaterialObject 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:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setUSE

      public TwoSidedMaterialObject setUSE​(TwoSidedMaterialObject 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:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • addComments

      public TwoSidedMaterialObject addComments​(java.lang.String newComment)
      Add comment as String to contained commentsList.
      Specified by:
      addComments in class X3DConcreteElement
      Parameters:
      newComment - initial value
      Returns:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
    • addComments

      public TwoSidedMaterialObject 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:
      TwoSidedMaterialObject - namely this same object to allow sequential method pipelining (i.e. consecutive setAttribute method invocations).
    • addComments

      public TwoSidedMaterialObject addComments​(CommentsBlock newCommentsBlock)
      Add CommentsBlock to contained commentsList.
      Specified by:
      addComments in class X3DConcreteElement
      Parameters:
      newCommentsBlock - block of comments to add
      Returns:
      TwoSidedMaterialObject - 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, X3D Canonicalization (C14N) Tool
    • 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, CAD and 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, CAD and 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, using both datatype-specification value checks and regular expression (regex) checking of corresponding string values.
      Specified by:
      validate in class X3DConcreteElement
      Returns:
      validation results (if any)