Class SFVec2f

java.lang.Object

org.web3d.x3d.jsail.fields.X3DConcreteField

org.web3d.x3d.jsail.fields.SFVec2f

All Implemented Interfaces:

SFVec2f, X3DField

public class SFVec2f
extends X3DConcreteField
implements SFVec2f

This utility class provides a concrete implementation corresponding to SFVec2f X3D field type.

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.
Package hint: This specification class is defined by the X3D Java Language Binding Specification for the Scene Authoring Interface (SAI). SFVec2f is a 2-tuple pair of SFFloat values. Hint: SFVec2f can be used to specify a 2D single-precision coordinate. Warning: comma characters within singleton values do not pass strict XML validation.

Related field object: MFVec2f

See Also:

• X3D Tooltips: type SFVec2f
• SAI Java Specification: B.4.11 X3DFieldTypes
• SAI Abstract Specification: 5.2.15 SAIFieldType
• X3D Abstract Specification: SFVec2fAndMFVec2f
• X3D Tooltips
• X3D Tooltips: field
• X3D Tooltips: fieldValue
• X3D Scene Authoring Hints

Field Summary

Fields

Modifier and Type	Field	Description
static final float[]	DEFAULT_VALUE	Default value for this field type contains values of 0 0.
static final String	DEFAULT_VALUE_STRING	Default string value for this field type is "0.0 0.0".
static final String	NAME	String constant NAME provides name of this element: SFVec2f
static final Pattern	PATTERN	Precompiled regular expression (regex) pattern for this field type using default REGEX value.
static final String	REGEX	Default regular expression (regex) pattern for this field type is \s*(([+-]?
static final int	TUPLE_SIZE	Default tuple size for this field type is 2 (i.e. number of component values making up a single-field SF object).

Fields inherited from class org.web3d.x3d.jsail.fields.X3DConcreteField

validationResult

Constructor Summary

Constructors

Constructor	Description
SFVec2f()	Constructor for SFVec2f performs value initialization.
SFVec2f(double[] newValue)	Utility constructor for SFVec2f using an alternatively typed Java double[] array as new initial value.
SFVec2f(double x, double y)	Utility constructor for SFVec2f using double values.
SFVec2f(float[] newValue)	Constructor for SFVec2f using a corresponding Java primitive float[] array as new initial value.
SFVec2f(float x, float y)	Utility constructor for SFVec2f using individual primitive values.
SFVec2f(SFVec2f newValue)	Constructor to copy an SFVec2f value as initial value for this new field object.

Method Summary

Modifier and Type	Method	Description
boolean	equals(SFVec2f comparisonSFVec2f)	Determine whether two objects contain equal values.
float[]	getPrimitiveValue()	Provides current value of the field as a Java primitive type.
void	getValue(float[] valueDestination)	Get the current value of this SFVec2f by copying it into the valueDestination array, leaving the current object unchanged.
final void	initialize()	Initialization for SFVec2f applies default initial value.
static final boolean	isArray()	Whether or not this field type is an array (false)
boolean	isDefaultValue()	Determine whether current value matches DEFAULT_VALUE
final boolean	matches()	Test PATTERN match via regular expression (regex) check of current object's toString() value.
static final boolean	matches(String value)	Test PATTERN match with regular expression (regex) of provided value.
SFVec2f	multiply(float scaleFactor)	Multiply scaleFactor times all values in this field type.
SFVec2f	normalize()	Utility method to normalize this vector value to unit length, ignore if zero length.
SFVec2f	setValue(double[] newValue)	Constructor for SFVec2f using a corresponding Java primitive double[] array as new initial value.
SFVec2f	setValue(double x, double y)	Assign a new value to this field.
void	setValue(float[] newValue)	Assign a new value to this field.
SFVec2f	setValue(float x, float y)	Assign a new value to this field.
SFVec2f	setValue(SFVec2f newValue)	Apply an SFVec2f value to this field.
SFVec2f	setValueArray(float[] newValue)	Assign a new array value to this field, pipelined.
SFVec2f	setValueByString(String newValue)	Utility accessor for SFVec2f using String value (which must pass parsing validation checks).
float[]	toFloatArray()	Provide float array for this field type.
String	toString()	Provides current value as a String.
static String	toString(float[] value)	Static utility method to provide String representation of a correctly typed input value.
final String	validate()	Validate current value via get/set comparison tests
final String	validateRegex()	Validate current value via regular expression (regex) check of current object's toString() value, reporting errors only if found.

Methods inherited from class org.web3d.x3d.jsail.fields.X3DConcreteField

addX3DEventListener, getDefinition, getTupleSize, getValidationResult, isReadable, isWritable, removeX3DEventListener, setReadable, setWritable

Methods inherited from class java.lang.Object

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

Field Details

NAME

public static final String NAME

String constant NAME provides name of this element: SFVec2f

See Also:

• Constant Field Values

DEFAULT_VALUE

public static final float[] DEFAULT_VALUE

Default value for this field type contains values of 0 0.

See Also:

• Java Tutorials: Primitive Data Types

DEFAULT_VALUE_STRING

public static final String DEFAULT_VALUE_STRING

Default string value for this field type is "0.0 0.0".

See Also:

• Constant Field Values

TUPLE_SIZE

public static final int TUPLE_SIZE

Default tuple size for this field type is 2 (i.e. number of component values making up a single-field SF object).

See Also:

• Constant Field Values

REGEX

public static final String REGEX

Default regular expression (regex) pattern for this field type is \s*(([+-]?((0|[1-9][0-9]*)(\.[0-9]*)?|\.[0-9]+)([Ee][+-]?[0-9]+)?)\s+){1}([+-]?((0|[1-9][0-9]*)(\.[0-9]*)?|\.[0-9]+)([Ee][+-]?[0-9]+)?)\s*

See Also:

• PATTERN
• matches()
• matches(String)
• validate()
• X3D Regular Expressions: SFVec2f
• Constant Field Values

PATTERN

public static final Pattern PATTERN

Precompiled regular expression (regex) pattern for this field type using default REGEX value.

See Also:

• REGEX
• matches()
• matches(String)
• validate()
• java.util.regex.Pattern

Constructor Details

SFVec2f

public SFVec2f()

Constructor for SFVec2f performs value initialization.

SFVec2f

public SFVec2f(SFVec2f newValue)

Constructor to copy an SFVec2f value as initial value for this new field object.

Parameters:

newValue - The newValue to apply

SFVec2f

public SFVec2f(float[] newValue)

Constructor for SFVec2f using a corresponding Java primitive float[] array as new initial value.

Parameters:

newValue - is new value to assign Warning: newValue array length must correspond to tuple size for base type SFVec2f tuple size of 2. setContainerFieldOverride(containerFieldName); // apply checksConcreteField#getTupleSize(String)

SFVec2f

public SFVec2f(float x,
 float y)

Utility constructor for SFVec2f using individual primitive values.

Parameters:

x - first component of axis

y - second component of axis

See Also:

• X3D Tooltips: type

SFVec2f

public SFVec2f(double x,
 double y)

Utility constructor for SFVec2f using double values.

Parameters:

x - first component

y - second component

See Also:

• X3D Tooltips: type

SFVec2f

public SFVec2f(double[] newValue)

Utility constructor for SFVec2f using an alternatively typed Java double[] array as new initial value.

Parameters:

newValue - is new value to assign

Method Details

isArray

public static final boolean isArray()

Whether or not this field type is an array (false)

Returns:

true if array type

initialize

public final void initialize()

Initialization for SFVec2f applies default initial value. Static initializer also provided to verify that the regex pattern compiles and matches that default value.

Specified by:

initialize in class X3DConcreteField

See Also:

• Stack Overflow: How to check if a given Regex is valid?
• DEFAULT_VALUE

equals

public boolean equals(SFVec2f comparisonSFVec2f)

Determine whether two objects contain equal values.

Parameters:

comparisonSFVec2f - field type to compare

Returns:

true if equivalent, false otherwise

validate

public final String validate()

Validate current value via get/set comparison tests

Returns:

empty string if get/set testing passes, warning otherwise

See Also:

• validate()
• validateRegex()

validateRegex

public final String validateRegex()

Validate current value via regular expression (regex) check of current object's toString() value, reporting errors only if found.

Returns:

empty string if PATTERN matches, warning otherwise

See Also:

• REGEX
• PATTERN
• matches()
• matches(String)
• validate()
• validate()
• java.util.regex.Pattern

matches

public final boolean matches()

Test PATTERN match via regular expression (regex) check of current object's toString() value.

Returns:

true if PATTERN matches, false otherwise

See Also:

• REGEX
• PATTERN
• matches()
• matches(String)
• validate()
• java.util.regex.Pattern

matches

public static final boolean matches(String value)

Test PATTERN match with regular expression (regex) of provided value.

Parameters:

value - String to check against regex pattern for successful match

Returns:

true if PATTERN matches, false otherwise

See Also:

• REGEX
• PATTERN
• matches()
• matches(String)
• validate()
• java.util.regex.Pattern

setValueByString

public SFVec2f setValueByString(String newValue)
                         throws InvalidFieldValueException

Utility accessor for SFVec2f using String value (which must pass parsing validation checks).

Warning: this method is not type safe at compile time! Best practice for X3DJSAIL programmers is to use strongly typed methods instead, in order to avoid potential for run-time errors.

Parameters:

newValue - is new value to assign, if empty then assign DEFAULT_VALUE

Returns:

MFMatrix4d - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).

Throws:

InvalidFieldValueException

See Also:

• X3DLoaderDOM.toX3dModelInstance(org.w3c.dom.Node)

normalize

public SFVec2f normalize()

Utility method to normalize this vector value to unit length, ignore if zero length.

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

toString

public static String toString(float[] value)

Static utility method to provide String representation of a correctly typed input value.

Parameters:

value - The value to convert to a String

Returns:

String version of the provided value, with trailing zeroes and decimal points omitted.

See Also:

• X3D Tooltips: type
• SFFloat.stripTrailingZeroes(float)

getValue

public void getValue(float[] valueDestination)

Get the current value of this SFVec2f by copying it into the valueDestination array, leaving the current object unchanged.

Specified by:

getValue in interface SFVec2f

Parameters:

valueDestination - The array to be filled in with current field values.

getPrimitiveValue

public float[] getPrimitiveValue()

Provides current value of the field as a Java primitive type.

Returns:

current value

toString

public String toString()

Provides current value as a String.

Overrides:

toString in class Object

Returns:

String version of the provided value, with trailing zeroes and decimal points omitted.

See Also:

• X3D Tooltips: type SFVec2f
• SFFloat.stripTrailingZeroes(float)

setValue

public void setValue(float[] newValue)

Assign a new value to this field. Warning: newValue array length must correspond to tuple size for base type SFVec2f tuple size of 2.

Specified by:

setValue in interface SFVec2f

Parameters:

newValue - The replacement value to assign.

See Also:

• X3DConcreteField.getTupleSize(String)

setValueArray

public SFVec2f setValueArray(float[] newValue)

Assign a new array value to this field, pipelined. This is an alternate utility method since primary method returns void and cannot be overridden. Warning: newValue array length must correspond to tuple size for base type SFVec2f tuple size of 2.

Parameters:

newValue - The replacement value to assign.

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

See Also:

• X3DConcreteField.getTupleSize(String)

setValue

public SFVec2f setValue(double[] newValue)

Constructor for SFVec2f using a corresponding Java primitive double[] array as new initial value.

Parameters:

newValue - is new value to assign Warning: newValue array length must correspond to tuple size for base type SFVec2f tuple size of 2.

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

setValue

public SFVec2f setValue(float x,
 float y)

Assign a new value to this field.

Parameters:

x - first component

y - second component

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

setValue

public SFVec2f setValue(double x,
 double y)

Assign a new value to this field.

Parameters:

x - first component

y - second component

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

toFloatArray

public float[] toFloatArray()

Provide float array for this field type.

Returns:

Array of floats in this field array.

setValue

public SFVec2f setValue(SFVec2f newValue)

Apply an SFVec2f value to this field.

Parameters:

newValue - The newValue to apply

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

multiply

public SFVec2f multiply(float scaleFactor)

Multiply scaleFactor times all values in this field type.

Parameters:

scaleFactor - scalar value for vector multiplication

Returns:

SFVec2f - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).

isDefaultValue

public boolean isDefaultValue()

Determine whether current value matches DEFAULT_VALUE

Returns:

whether current value matches DEFAULT_VALUE

See Also:

• DEFAULT_VALUE