Package org.web3d.x3d.sai.Followers

Interface PositionChaser2D

All Superinterfaces:

X3DChaserNode, X3DChildNode, X3DFollowerNode, X3DNode

All Known Implementing Classes:

PositionChaser2D

public interface PositionChaser2D
extends X3DChaserNode

PositionChaser2D generates a series of 2D position values that progressively change from initial value to destination value.

Warning: this is an abstract interface that cannot be instantiated as a concrete object. Java programmers typically only need to use concrete objects provided by the org.web3d.x3d.jsail classes. PositionChaser2D node tooltip: (X3D version 3.2 or later) [X3DChaserNode] PositionChaser2D generates a series of 2D position values that progressively change from initial value to destination value.

• Hint: ROUTE value_changed output events to a <TextureTransform> node's translation field, for example.

Package hint: This interface is defined by the X3D Java Language Binding Specification for the Scene Authoring Interface (SAI).

See Also:

• SAI Java Specification
• X3D Abstract Specification: PositionChaser2D
• X3D Tooltips: PositionChaser2D
• X3D Scene Authoring Hints

Method Summary

Modifier and Type	Method	Description
double	getDuration()	Provide double value in seconds within allowed range of [0,infinity) from initializeOnly SFTime field named duration.
float[]	getInitialDestination()	Provide array of 2-tuple float results from initializeOnly SFVec2f field named initialDestination.
float[]	getInitialValue()	Provide array of 2-tuple float results from initializeOnly SFVec2f field named initialValue.
boolean	getIsActive()	Provide boolean value from outputOnly SFBool field named isActive.
X3DMetadataObject	getMetadata()	Provide org.web3d.x3d.sai.Core.X3DMetadataObject instance (using a properly typed node) from inputOutput SFNode field metadata.
float[]	getValue()	Provide array of 2-tuple float results from outputOnly SFVec2f field named value_changed.
PositionChaser2D	setDuration(double newValue)	Accessor method to assign double value in seconds to initializeOnly SFTime field named duration.
PositionChaser2D	setInitialDestination(float[] newValue)	Accessor method to assign 2-tuple float array to initializeOnly SFVec2f field named initialDestination.
PositionChaser2D	setInitialValue(float[] newValue)	Accessor method to assign 2-tuple float array to initializeOnly SFVec2f field named initialValue.
PositionChaser2D	setMetadata(X3DMetadataObject newValue)	Accessor method to assign org.web3d.x3d.sai.Core.X3DMetadataObject instance (using a properly typed node) to inputOutput SFNode field metadata.

Method Details

getDuration

double getDuration()

Provide double value in seconds within allowed range of [0,infinity) from initializeOnly SFTime field named duration.

Tooltip: [0,+infinity) duration is the time interval for filter response in seconds.

• Hint: duration is a nonnegative SFTime duration interval, not an absolute clock time.

Specified by:

getDuration in interface X3DChaserNode

Returns:

value of duration field

setDuration

PositionChaser2D setDuration(double newValue)

Accessor method to assign double value in seconds to initializeOnly SFTime field named duration.

Tooltip: [0,+infinity) duration is the time interval for filter response in seconds.

• Hint: duration is a nonnegative SFTime duration interval, not an absolute clock time.

Specified by:

setDuration in interface X3DChaserNode

Parameters:

newValue - is new value for the duration field.

Returns:

PositionChaser2D - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

getInitialDestination

float[] getInitialDestination()

Provide array of 2-tuple float results from initializeOnly SFVec2f field named initialDestination.

Tooltip: Initial destination value for this node. *

Returns:

value of initialDestination field

setInitialDestination

PositionChaser2D setInitialDestination(float[] newValue)

Accessor method to assign 2-tuple float array to initializeOnly SFVec2f field named initialDestination.

Tooltip: Initial destination value for this node. *

Parameters:

newValue - is new value for the initialDestination field.

Returns:

PositionChaser2D - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

getInitialValue

float[] getInitialValue()

Provide array of 2-tuple float results from initializeOnly SFVec2f field named initialValue.

Tooltip: Initial starting value for this node. *

Returns:

value of initialValue field

setInitialValue

PositionChaser2D setInitialValue(float[] newValue)

Accessor method to assign 2-tuple float array to initializeOnly SFVec2f field named initialValue.

Tooltip: Initial starting value for this node. *

Parameters:

newValue - is new value for the initialValue field.

Returns:

PositionChaser2D - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

getIsActive

boolean getIsActive()

Provide boolean value from outputOnly SFBool field named isActive.

Tooltip: isActive true/false events are sent when follower-node computation starts/stops.

• Warning: it is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

Specified by:

getIsActive in interface X3DChaserNode

Specified by:

getIsActive in interface X3DFollowerNode

Returns:

value of isActive field

getMetadata

X3DMetadataObject getMetadata()

Provide org.web3d.x3d.sai.Core.X3DMetadataObject instance (using a properly typed node) from inputOutput SFNode field metadata.

Tooltip: [X3DMetadataObject] Information about this node can be contained in a MetadataBoolean, MetadataDouble, MetadataFloat, MetadataInteger, MetadataString or MetadataSet node.

• Hint: X3D Architecture 7.2.4 Metadata https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS /Part01/components/core.html#Metadata

Specified by:

getMetadata in interface X3DChaserNode

Specified by:

getMetadata in interface X3DChildNode

Specified by:

getMetadata in interface X3DFollowerNode

Specified by:

getMetadata in interface X3DNode

Returns:

value of metadata field

See Also:

• X3D Scene Authoring Hints: Metadata Nodes

setMetadata

PositionChaser2D setMetadata(X3DMetadataObject newValue)

Accessor method to assign org.web3d.x3d.sai.Core.X3DMetadataObject instance (using a properly typed node) to inputOutput SFNode field metadata.

Tooltip: [X3DMetadataObject] Information about this node can be contained in a MetadataBoolean, MetadataDouble, MetadataFloat, MetadataInteger, MetadataString or MetadataSet node.

• Hint: X3D Architecture 7.2.4 Metadata https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS /Part01/components/core.html#Metadata

Specified by:

setMetadata in interface X3DChaserNode

Specified by:

setMetadata in interface X3DChildNode

Specified by:

setMetadata in interface X3DFollowerNode

Specified by:

setMetadata in interface X3DNode

Parameters:

newValue - is new value for the metadata field.

Returns:

PositionChaser2D - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

See Also:

• X3D Scene Authoring Hints: Metadata Nodes

getValue

float[] getValue()

Provide array of 2-tuple float results from outputOnly SFVec2f field named value_changed.

Tooltip: Computed output value that approaches within tolerance of destination value, as determined by elapsed time, order and tau.

• Warning: it is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

Returns:

value of value_changed field