Package com.openinventor.inventor

Class SbVec4d

java.lang.Object

com.openinventor.inventor.SbBasic

com.openinventor.inventor.SbVec4d

public class SbVec4d
extends SbBasic

4D vector class (double precision). 4D vector class used to store homogeneous coordinates. Although Open Inventor fields still store only single precision values, for certain applications it is useful and convenient to be able to store and manipulate double precision values, for example, double precision coordinate data or values that will be used for further computation.

See Also:

• SbRotation
• SbRotationd
• SbVec2d
• SbVec2f
• SbVec2i32
• SbVec2s
• SbVec3d
• SbVec3f
• SbVec3i32
• SbVec3s
• SbVec4b
• SbVec4f
• SbVec4i32
• SbVec4s
• SbVec4ub
• SbVec4ui32
• SbVec4us

Field Summary

Fields

Modifier and Type	Field	Description
final double[]	array

Constructor Summary

Constructors

Constructor	Description
SbVec4d()
SbVec4d(double[] components)
SbVec4d(double c0, double c1, double c2, double c3)
SbVec4d(SbVec4d copyFrom)

Method Summary

Modifier and Type	Method	Description
void	add(SbVec4d u)	Component-wise vector addition operator.
void	divide(double d)	Component-wise scalar division operator.
double	dot(SbVec4d v)	Returns dot (inner) product of vector and another vector.
boolean	equals(SbVec4d v, double tolerance)	Equality comparison within given tolerance - the square of the length of the maximum distance between the two vectors.
boolean	equals(Object obj)
SbVec3d	getReal()	Returns the real portion of the vector by dividing by the fourth value.
double[]	getValue()
double	getValueAt(int index)
double	getW()
double	getX()
double	getY()
double	getZ()
double	length()	Returns geometric length of vector.
double	lengthSquared()	Returns square length of vector.
SbVec4d	minus(SbVec4d v2)	Component-wise binary vector subtraction operator.
void	multiply(double d)	Component-wise scalar multiplication operator.
void	negate()	Negates each component of vector in place.
double	normalize()	Changes vector to be unit length.
SbVec4d	over(double d)	Component-wise binary scalar division operator.
SbVec4d	plus(SbVec4d v2)	Component-wise binary vector addition operator.
SbVec4d	setValue(double[] components)
SbVec4d	setValue(double[] components, int startIndex)
SbVec4d	setValue(double c0, double c1, double c2, double c3)
void	setValue(SbVec4d copyFrom)
SbVec4d	setValue(SbVec4f vec4f)	Sets value of vector from a single precision vector.
void	setValueAt(int index, double value)
void	setW(double value)
void	setX(double value)
void	setY(double value)
void	setZ(double value)
void	substract(SbVec4d u)	Component-wise vector subtraction operator.
SbVec4d	times(double d)	Component-wise binary scalar multiplication operator.
static SbVec4d[]	toArray(long nativeArray, long length)

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

array

public final double[] array

Constructor Details

SbVec4d

public SbVec4d()

SbVec4d

public SbVec4d(SbVec4d copyFrom)

SbVec4d

public SbVec4d(double[] components)

SbVec4d

public SbVec4d(double c0,
 double c1,
 double c2,
 double c3)

Method Details

setValue

public SbVec4d setValue(double c0,
 double c1,
 double c2,
 double c3)

setY

public void setY(double value)

setX

public void setX(double value)

getValueAt

public double getValueAt(int index)

setValue

public void setValue(SbVec4d copyFrom)

setValueAt

public void setValueAt(int index,
 double value)

setValue

public SbVec4d setValue(double[] components,
 int startIndex)

getValue

public double[] getValue()

setValue

public SbVec4d setValue(double[] components)

setZ

public void setZ(double value)

getZ

public double getZ()

getX

public double getX()

getY

public double getY()

setW

public void setW(double value)

getW

public double getW()

toArray

public static SbVec4d[] toArray(long nativeArray,
 long length)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

equals

public boolean equals(SbVec4d v,
 double tolerance)

Equality comparison within given tolerance - the square of the length of the maximum distance between the two vectors.

plus

public SbVec4d plus(SbVec4d v2)

Component-wise binary vector addition operator.

minus

public SbVec4d minus(SbVec4d v2)

Component-wise binary vector subtraction operator.

over

public SbVec4d over(double d)

Component-wise binary scalar division operator.

length

public double length()

Returns geometric length of vector.

lengthSquared

public double lengthSquared()

Returns square length of vector. Faster than length().

getReal

public SbVec3d getReal()

Returns the real portion of the vector by dividing by the fourth value.

dot

public double dot(SbVec4d v)

Returns dot (inner) product of vector and another vector.

negate

public void negate()

Negates each component of vector in place.

add

public void add(SbVec4d u)

Component-wise vector addition operator.

divide

public void divide(double d)

Component-wise scalar division operator.

times

public SbVec4d times(double d)

Component-wise binary scalar multiplication operator.

substract

public void substract(SbVec4d u)

Component-wise vector subtraction operator.

multiply

public void multiply(double d)

Component-wise scalar multiplication operator.

normalize

public double normalize()

Changes vector to be unit length.

setValue

public SbVec4d setValue(SbVec4f vec4f)

Sets value of vector from a single precision vector.