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

Class BaseGeoTransform

java.lang.Object

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

org.web3d.vrml.renderer.common.nodes.BaseGroupingNode

org.web3d.vrml.renderer.common.nodes.geospatial.BaseGeoTransform

All Implemented Interfaces:

VRMLNode, FrameStateListener, VRMLBoundedNodeType, VRMLChildNodeType, VRMLGroupingNodeType, VRMLNodeType, VRMLWorldRootChildNodeType, OriginListener

Direct Known Subclasses:

NRGeoTransform, OGLGeoTransform

public class BaseGeoTransform
extends BaseGroupingNode
implements OriginListener

Common implementation of the GeoTransform node.

This base class does not automatically update the underlying transform with each set() call. These calls only update the local field values, but not the transform that would be used in the rendering code. To make sure this is updated, call the updateMatrix() method and then use the updated matrix in your rendering code.

Version:

$Revision: 1.4 $

Author:

Rex Melton

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	FIELD_GEO_CENTER	Index of the geoCenter field
protected static final int	FIELD_GEO_ORIGIN	Index of the geoOrigin field
protected static final int	FIELD_GEO_SYSTEM	Index of the geoSystem field
protected static final int	FIELD_ROTATION	Index of the rotation field
protected static final int	FIELD_SCALE	Index of the scale field
protected static final int	FIELD_SCALE_ORIENTATION	Index of the scale orientation field
protected static final int	FIELD_TRANSLATION	Index of the translation field
protected static final int	LAST_GEOTRANSFORM_INDEX	The last field index used by this class
protected double[]	local_origin	The origin in use
protected double[]	localCenter	The calculated local version of the geoCenter taking into account both the projection information and the GeoOrigin setting.
protected static final int	NUM_FIELDS	Number of fields constant
protected OriginManager	originManager	Manager for precision control
protected VRMLProtoInstance	pGeoOrigin	Proto version of the geoOrigin
protected javax.vecmath.Matrix4f	tmatrix	THE transform matrix
protected boolean	useOriginManager	Flag indicating that the OriginManager is enabled
protected double[]	vfGeoCenter	field SFVec3d geoCenter
protected VRMLNodeType	vfGeoOrigin	field SFNode geoOrigin
protected String[]	vfGeoSystem	field MFString geoSystem ["GD","WE"]
protected float[]	vfRotation	SFRotation rotation
protected float[]	vfScale	SFVec3f scale
protected float[]	vfScaleOrientation	SFRotation scaleOrientation
protected float[]	vfTranslation	SFVec3f translation

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

childCount, FIELD_ADDCHILDREN, FIELD_BBOX_CENTER, FIELD_BBOX_DISPLAY, FIELD_BBOX_SIZE, FIELD_CHILDREN, FIELD_REMOVECHILDREN, FIELD_VISIBLE, hasBindables, LAST_GROUP_INDEX, shareCount, USE_BIND_MSG, vfBboxCenter, vfBboxDisplay, vfBboxSize, vfChildren, vfVisible

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

Constructor	Description
BaseGeoTransform()	Construct a default instance of this node.
BaseGeoTransform(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	allEventsComplete()	Notification that the rendering of the event model is complete and that rendering is about to begin.
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.
protected float[]	getRotation()	Get the current rotation component of the transform.
protected float[]	getScale()	Get the current scale component of the transform.
protected float[]	getScaleOrientation()	Get the current scale orientation component of the transform.
int[]	getSecondaryType()	Get the secondary type of this node.
protected float[]	getTranslation()	Get the current translation component of the transform.
void	originChanged()	Notification that the origin has changed.
void	sendRoute(double time, int srcIndex, VRMLNodeType destNode, int destIndex)	Send a routed value from this node to the given destination node.
protected void	setGeoCenter(double[] coords)	Set the geo center coordinate.
protected void	setRotation(float[] rot)	Set the rotation component of the of transform.
protected void	setScale(float[] scale)	Set the scale component of the of transform.
protected void	setScaleOrientation(float[] so)	Set the scale orientation component of the of transform.
protected void	setTranslation(float[] tx)	Set the translation component of the transform.
void	setupFinished()	Notification that the construction phase of this node has finished.
void	setValue(int index, double[] value, int numValid)	Set the value of the field at the given index as an array of doubles.
void	setValue(int index, float[] value, int numValid)	Set the value of the field at the given index as an array of floats.
void	setValue(int index, String[] value, int numValid)	Set the value of the field at the given index as an array of strings.
void	setValue(int index, VRMLNodeType child)	Set the value of the field at the given index as a node.
protected void	updateMatrix()	Calculate transforms needed to handle VRML semantics and place the results in the matrix variable of this class.

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

addChild, addChildNode, clearChildren, containsBindableNodes, copy, getBboxCenter, getBboxDisplay, getBboxSize, getChildren, getChildrenSize, getPrimaryType, getVisible, isShared, removeChildNode, setBboxCenter, setBboxDisplay, setBboxSize, setChildren, setChildren, setDEF, setShared, setValue, setValue, setVisible, updateRefCount

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

addNodeListener, checkNodeType, checkSecondaryType, checkSecondaryType, clearRemovedLayerIds, fireFieldChanged, getLayerIds, getMetadataObject, getRefCount, getRemovedLayerIds, getUserData, getVRMLNodeName, hasFieldChanged, isDEF, isSetupFinished, notifyExternProtoLoaded, removeNodeListener, setErrorReporter, setFrameStateManager, setMetadataObject, setUserData, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setVersion, throwInitOnlyWriteException, throwInputOnlyWriteException, throwInvalidNodeException, throwInvalidProtoException, throwOutputOnlyWriteException, 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.lang.VRMLNode

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, setFrameStateManager, setMetadataObject, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue

Field Details

FIELD_GEO_CENTER

protected static final int FIELD_GEO_CENTER

Index of the geoCenter field

See Also:

• Constant Field Values

FIELD_ROTATION

protected static final int FIELD_ROTATION

Index of the rotation field

See Also:

• Constant Field Values

FIELD_SCALE

protected static final int FIELD_SCALE

Index of the scale field

See Also:

• Constant Field Values

FIELD_SCALE_ORIENTATION

protected static final int FIELD_SCALE_ORIENTATION

Index of the scale orientation field

See Also:

• Constant Field Values

FIELD_TRANSLATION

protected static final int FIELD_TRANSLATION

Index of the translation field

See Also:

• Constant Field Values

FIELD_GEO_ORIGIN

protected static final int FIELD_GEO_ORIGIN

Index of the geoOrigin field

See Also:

• Constant Field Values

FIELD_GEO_SYSTEM

protected static final int FIELD_GEO_SYSTEM

Index of the geoSystem field

See Also:

• Constant Field Values

LAST_GEOTRANSFORM_INDEX

protected static final int LAST_GEOTRANSFORM_INDEX

The last field index used by this class

See Also:

• Constant Field Values

NUM_FIELDS

protected static final int NUM_FIELDS

Number of fields constant

See Also:

• Constant Field Values

vfGeoCenter

protected double[] vfGeoCenter

field SFVec3d geoCenter

vfRotation

protected float[] vfRotation

SFRotation rotation

vfScale

protected float[] vfScale

SFVec3f scale

vfScaleOrientation

protected float[] vfScaleOrientation

SFRotation scaleOrientation

vfTranslation

protected float[] vfTranslation

SFVec3f translation

vfGeoSystem

protected String[] vfGeoSystem

field MFString geoSystem ["GD","WE"]

pGeoOrigin

protected VRMLProtoInstance pGeoOrigin

Proto version of the geoOrigin

vfGeoOrigin

protected VRMLNodeType vfGeoOrigin

field SFNode geoOrigin

localCenter

protected double[] localCenter

The calculated local version of the geoCenter taking into account both the projection information and the GeoOrigin setting.

tmatrix

protected javax.vecmath.Matrix4f tmatrix

THE transform matrix

originManager

protected OriginManager originManager

Manager for precision control

useOriginManager

protected boolean useOriginManager

Flag indicating that the OriginManager is enabled

local_origin

protected double[] local_origin

The origin in use

Constructor Details

BaseGeoTransform

public BaseGeoTransform()

Construct a default instance of this node. The defaults are set by the VRML specification.

BaseGeoTransform

public BaseGeoTransform(VRMLNodeType node)

Construct a new instance of this node based on the details from the given node. If the node is not a group node, an exception will be thrown. It does not copy the children nodes, just this node.

Parameters:

node - The node to copy

Throws:

IllegalArgumentException - The node is not a Group node

Method Details

allEventsComplete

public void allEventsComplete()

Notification that the rendering of the event model is complete and that rendering is about to begin. Used to update the transformation matrix only once per frame. If the derived class needs to propagate the changes then it should override the updateMatrix() method or this and make sure this method is called first.

Specified by:

allEventsComplete in interface FrameStateListener

Overrides:

allEventsComplete in class AbstractNode

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.

getSecondaryType

public int[] getSecondaryType()

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

Specified by:

getSecondaryType in interface VRMLNode

Overrides:

getSecondaryType in class AbstractNode

Returns:

The secondary 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 BaseGroupingNode

Parameters:

index - The index of the field to change.

Returns:

The class representing the field value

Throws:

InvalidFieldException - The field index is not known

setupFinished

public void setupFinished()

Notification that the construction phase of this node has finished. If the node would like to do any internal processing, such as setting up geometry, then go for it now.

Specified by:

setupFinished in interface VRMLNodeType

Overrides:

setupFinished in class BaseGroupingNode

sendRoute

public void sendRoute(double time,
 int srcIndex,
 VRMLNodeType destNode,
 int destIndex)

Send a routed value from this node to the given destination node. The route should use the appropriate setValue() method of the destination node. It should not attempt to cast the node up to a higher level. Routing should also follow the standard rules for the loop breaking and other appropriate rules for the specification.

Specified by:

sendRoute in interface VRMLNodeType

Overrides:

sendRoute in class BaseGroupingNode

Parameters:

time - The time that this route occurred (not necessarily epoch time. Should be treated as a relative value only)

srcIndex - The index of the field in this node that the value should be sent from

destNode - The node reference that we will be sending the value to

destIndex - The index of the field in the destination node that the value should be sent to.

setValue

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

Set the value of the field at the given index as an array of doubles. This would be used to set MFDouble, SFVec2d, SFVec3d, SFVec4d and SFTime 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 field index is not known

InvalidFieldValueException - The value provided is not in range or not appropriate for this field

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 MFFloat, SFVec2f, SFVec3f and SFRotation field types.

Specified by:

setValue in interface VRMLNodeType

Overrides:

setValue in class BaseGroupingNode

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 field index is not known

InvalidFieldValueException - The value provided is not in range or not appropriate for this field

setValue

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

Set the value of the field at the given index as an array of strings. This would be used to set the MFString field type "type".

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 field index is not know

InvalidFieldValueException - The value provided is not in range or not appropriate for this field

InvalidFieldAccessException - The call is attempting to write to a field that does not permit writing now

setValue

public void setValue(int index,
 VRMLNodeType child)
              throws InvalidFieldException,
InvalidFieldValueException

Set the value of the field at the given index as a node. This would be used to set SFNode field types.

Specified by:

setValue in interface VRMLNodeType

Overrides:

setValue in class BaseGroupingNode

Parameters:

index - The index of destination field to set

child - The new value to use for the node

Throws:

InvalidFieldException - The field index is not known

InvalidFieldValueException - The node does not match the required type.

originChanged

public void originChanged()

Notification that the origin has changed.

Specified by:

originChanged in interface OriginListener

setGeoCenter

protected void setGeoCenter(double[] coords)
                     throws InvalidFieldValueException

Set the geo center coordinate. If we're not in the setup, also do some coordinate conversion to the local center.

Parameters:

coords - The new coordinate values to use

Throws:

InvalidFieldValueException

setRotation

protected void setRotation(float[] rot)
                    throws InvalidFieldValueException

Set the rotation component of the of transform. Setting a value of null is an error

Parameters:

rot - The new rotation component

Throws:

InvalidFieldValueException - The rotation was null

getRotation

protected float[] getRotation()

Get the current rotation component of the transform.

Returns:

The current rotation

setTranslation

protected void setTranslation(float[] tx)
                       throws InvalidFieldValueException

Set the translation component of the transform. Setting a value of null is an error

Parameters:

tx - The new translation component

Throws:

InvalidFieldValueException - The translation was null

getTranslation

protected float[] getTranslation()

Get the current translation component of the transform.

Returns:

The current translation

setScale

protected void setScale(float[] scale)
                 throws InvalidFieldValueException

Set the scale component of the of transform. Setting a value of null is an error

Parameters:

scale - The new scale component

Throws:

InvalidFieldValueException - The scale was null

getScale

protected float[] getScale()

Get the current scale component of the transform.

Returns:

The current scale

setScaleOrientation

protected void setScaleOrientation(float[] so)
                            throws InvalidFieldValueException

Set the scale orientation component of the of transform. Setting a value of null is an error

Parameters:

so - The new scale orientation component

Throws:

InvalidFieldValueException - The scale orientation was null

getScaleOrientation

protected float[] getScaleOrientation()

Get the current scale orientation component of the transform.

Returns:

The current scale orientation

updateMatrix

protected void updateMatrix()

Calculate transforms needed to handle VRML semantics and place the results in the matrix variable of this class. formula: T x C x R x SR x S x -SR x -C