Package org.web3d.vrml.renderer.common.nodes.geom2d

Class BasePolypoint2D

java.lang.Object

org.web3d.vrml.renderer.common.nodes.AbstractNode

org.web3d.vrml.renderer.common.nodes.geom2d.BasePolypoint2D

All Implemented Interfaces:

VRMLNode, FrameStateListener, VRMLGeometryNodeType, VRMLNodeType

Direct Known Subclasses:

NRPolypoint2D, OGLPolypoint2D

public abstract class BasePolypoint2D
extends AbstractNode
implements VRMLGeometryNodeType

An abstract implementation of the Polypoint2D.

Spec notes: Mentions solid but no solid field What to do when only 1 vertex is provided.

Version:

$Revision: 1.8 $

Author:

Justin Couch

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	FIELD_POINT	Index of the point field
protected int	numPoint	Number of valid values in the point field
protected float[]	vfPoint	The value of the point field

Fields inherited from class org.web3d.vrml.renderer.common.nodes.AbstractNode

errorReporter, FIELD_METADATA, fieldLocalData, hasChanged, inSetup, isDEF, isStatic, LAST_NODE_INDEX, layerIds, nodeName, pMetadata, refCounts, removedLayerIds, stateManager, STATIC_SCENE_GRAPH, vfMetadata, vrmlMajorVersion, vrmlMinorVersion

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BasePolypoint2D()	Construct a default instance of this class with the bind flag set to false and no time information set (effective value of zero).
protected	BasePolypoint2D(VRMLNodeType node)	Construct a new instance of this node based on the details from the given node.

Method Summary

Modifier and Type	Method	Description
void	addLocalColorsListener(LocalColorsListener l)	Add a listener for local color changes.
void	addTexCoordGenModeChanged(TexCoordGenModeListener l)	Add a listener for texture coordinate generation mode changes.
VRMLFieldDeclaration	getFieldDeclaration(int index)	Get the declaration of the field at the given index.
int	getFieldIndex(String fieldName)	Get the index of the given field name.
VRMLFieldData	getFieldValue(int index)	Get the value of a field.
int[]	getNodeFieldIndices()	Get the list of indices that correspond to fields that contain nodes ie MFNode and SFNode).
int	getNumFields()	Get the number of fields.
int	getNumSets()	Get the number of texture coordinate sets contained by this node
int	getPrimaryType()	Get the primary type of this node.
String	getTexCoordGenMode(int setNum)	Get the texture coordinate generation mode.
boolean	hasLocalColorAlpha()	Specified whether this node has alpha values in the local colour information.
boolean	hasLocalColors()	Specified whether this node has color information.
boolean	isCCW()	Get the value of the CCW field.
boolean	isLightingEnabled()	Specifies whether this node requires lighting.
boolean	isSolid()	Get the value of the solid field.
void	removeLocalColorsListener(LocalColorsListener l)	Remove a listener for local color changes.
void	removeTexCoordGenModeChanged(TexCoordGenModeListener l)	Remove a listener for texture coordinate generation mode changes.
protected void	setPoint(float[] segs, int numValid)	Set the value of the lineSegments field.
void	setTextureCount(int count)	Set the number of textures that were found on the accompanying Appearance node.
void	setValue(int index, float[] value, int numValid)	Set the value of the field at the given index as an array of floats.

Methods inherited from class org.web3d.vrml.renderer.common.nodes.AbstractNode

addNodeListener, allEventsComplete, checkNodeType, checkSecondaryType, checkSecondaryType, clearRemovedLayerIds, fireFieldChanged, getLayerIds, getMetadataObject, getRefCount, getRemovedLayerIds, getSecondaryType, getUserData, getVRMLNodeName, hasFieldChanged, isDEF, isSetupFinished, notifyExternProtoLoaded, removeNodeListener, sendRoute, setDEF, setErrorReporter, setFrameStateManager, setMetadataObject, setupFinished, setUserData, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setVersion, throwInitOnlyWriteException, throwInputOnlyWriteException, throwInvalidNodeException, throwInvalidProtoException, throwOutputOnlyWriteException, updateRefCount, updateRefs

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.web3d.vrml.nodes.FrameStateListener

allEventsComplete

Methods inherited from interface org.web3d.vrml.lang.VRMLNode

getSecondaryType, getUserData, getVRMLNodeName, isDEF, setErrorReporter, setUserData, setVersion

Methods inherited from interface org.web3d.vrml.nodes.VRMLNodeType

addNodeListener, clearRemovedLayerIds, getLayerIds, getMetadataObject, getRefCount, getRemovedLayerIds, hasFieldChanged, isSetupFinished, notifyExternProtoLoaded, removeNodeListener, sendRoute, setDEF, setFrameStateManager, setMetadataObject, setupFinished, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, updateRefCount

Field Details

FIELD_POINT

protected static final int FIELD_POINT

Index of the point field

See Also:

• Constant Field Values

vfPoint

protected float[] vfPoint

The value of the point field

numPoint

protected int numPoint

Number of valid values in the point field

Constructor Details

BasePolypoint2D

protected BasePolypoint2D()

Construct a default instance of this class with the bind flag set to false and no time information set (effective value of zero).

BasePolypoint2D

protected BasePolypoint2D(VRMLNodeType node)

Construct a new instance of this node based on the details from the given node. If the node is not the same type, an exception will be thrown.

Parameters:

node - The node to copy

Throws:

IllegalArgumentException - Incorrect Node Type

Method Details

hasLocalColors

public boolean hasLocalColors()

Specified whether this node has color information. If so, then it will be used for diffuse terms instead of materials.

Specified by:

hasLocalColors in interface VRMLGeometryNodeType

Returns:

true Use local color information for diffuse lighting.

hasLocalColorAlpha

public boolean hasLocalColorAlpha()

Specified whether this node has alpha values in the local colour information. If so, then it will be used for to override the material's transparency value.

Specified by:

hasLocalColorAlpha in interface VRMLGeometryNodeType

Returns:

true when the local color value has inbuilt alpha

addLocalColorsListener

public void addLocalColorsListener(LocalColorsListener l)

Add a listener for local color changes. Nulls and duplicates will be ignored.

Specified by:

addLocalColorsListener in interface VRMLGeometryNodeType

Parameters:

l - The listener.

removeLocalColorsListener

public void removeLocalColorsListener(LocalColorsListener l)

Remove a listener for local color changes. Nulls will be ignored.

Specified by:

removeLocalColorsListener in interface VRMLGeometryNodeType

Parameters:

l - The listener.

addTexCoordGenModeChanged

public void addTexCoordGenModeChanged(TexCoordGenModeListener l)

Add a listener for texture coordinate generation mode changes. Nulls and duplicates will be ignored.

Specified by:

addTexCoordGenModeChanged in interface VRMLGeometryNodeType

Parameters:

l - The listener.

removeTexCoordGenModeChanged

public void removeTexCoordGenModeChanged(TexCoordGenModeListener l)

Remove a listener for texture coordinate generation mode changes. Nulls will be ignored.

Specified by:

removeTexCoordGenModeChanged in interface VRMLGeometryNodeType

Parameters:

l - The listener.

getTexCoordGenMode

public String getTexCoordGenMode(int setNum)

Get the texture coordinate generation mode. NULL is returned if the texture coordinates are not generated.

Specified by:

getTexCoordGenMode in interface VRMLGeometryNodeType

Parameters:

setNum - The set which this tex gen mode refers

Returns:

The mode or NULL

setTextureCount

public void setTextureCount(int count)

Set the number of textures that were found on the accompanying Appearance node. Used to set the number of texture coordinates that need to be passed in to the renderer when no explicit texture coordinates were given.

Specified by:

setTextureCount in interface VRMLGeometryNodeType

Parameters:

count - The number of texture coordinate sets to add

getNumSets

public int getNumSets()

Get the number of texture coordinate sets contained by this node

Specified by:

getNumSets in interface VRMLGeometryNodeType

Returns:

the number of texture coordinate sets

isSolid

public boolean isSolid()

Get the value of the solid field.

Specified by:

isSolid in interface VRMLGeometryNodeType

Returns:

true This object is solid (ie single sided)

isCCW

public boolean isCCW()

Get the value of the CCW field. If the node does not have one, this will return true.

Specified by:

isCCW in interface VRMLGeometryNodeType

Returns:

true if the vertices are CCW ordered

isLightingEnabled

public boolean isLightingEnabled()

Specifies whether this node requires lighting.

Specified by:

isLightingEnabled in interface VRMLGeometryNodeType

Returns:

Should lighting be enabled

getPrimaryType

public int getPrimaryType()

Get the primary type of this node. Replaces the instanceof mechanism for use in switch statements.

Specified by:

getPrimaryType in interface VRMLNode

Returns:

The primary type

getFieldValue

public VRMLFieldData getFieldValue(int index)
                            throws InvalidFieldException

Get the value of a field. If the field is a primitive type, it will return a class representing the value. For arrays or nodes it will return the instance directly.

Specified by:

getFieldValue in interface VRMLNodeType

Overrides:

getFieldValue in class AbstractNode

Parameters:

index - The index of the field to change.

Returns:

The class representing the field value

Throws:

InvalidFieldException - The field index is not known

getFieldIndex

public int getFieldIndex(String fieldName)

Get the index of the given field name. If the name does not exist for this node then return a value of -1.

Specified by:

getFieldIndex in interface VRMLNode

Parameters:

fieldName - The name of the field we want the index from

Returns:

The index of the field name or -1

getNodeFieldIndices

public int[] getNodeFieldIndices()

Get the list of indices that correspond to fields that contain nodes ie MFNode and SFNode). Used for blind scene graph traversal without needing to spend time querying for all fields etc. If a node does not have any fields that contain nodes, this shall return null. The field list covers all field types, regardless of whether they are readable or not at the VRML-level.

Specified by:

getNodeFieldIndices in interface VRMLNode

Returns:

The list of field indices that correspond to SF/MFnode fields or null if none

getFieldDeclaration

public VRMLFieldDeclaration getFieldDeclaration(int index)

Get the declaration of the field at the given index. This allows for reverse lookup if needed. If the field does not exist, this will give a value of null.

Specified by:

getFieldDeclaration in interface VRMLNode

Parameters:

index - The index of the field to get information

Returns:

A representation of this field's information

getNumFields

public int getNumFields()

Get the number of fields.

Specified by:

getNumFields in interface VRMLNode

Returns:

The number of fields.

setValue

public void setValue(int index,
 float[] value,
 int numValid)
              throws InvalidFieldException,
InvalidFieldValueException

Set the value of the field at the given index as an array of floats. This would be used to set MFVec2f field types.

Specified by:

setValue in interface VRMLNodeType

Overrides:

setValue in class AbstractNode

Parameters:

index - The index of destination field to set

value - The new value to use for the node

numValid - The number of valid values to copy from the array

Throws:

InvalidFieldException - The index does not match a known field

InvalidFieldValueException - The value provided is out of range for the field type.

setPoint

protected void setPoint(float[] segs,
 int numValid)
                 throws InvalidFieldValueException

Set the value of the lineSegments field.

Parameters:

segs - The list of line segments provided

numValid - The number of valid values to copy from the array

Throws:

InvalidFieldValueException - One or more values were < 2