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

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

All Methods Static Methods Instance Methods Concrete Methods
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(java.lang.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 Detail
- array
```
public final double[] array
```

Constructor Detail

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 Detail

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(java.lang.Object obj)

Overrides:: equals in class java.lang.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.

Class SbVec4d

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

array

Constructor Detail

SbVec4d

SbVec4d

SbVec4d

SbVec4d

Method Detail

setValue

setY

setX

getValueAt

setValue

setValueAt

setValue

getValue

setValue

setZ

getZ

getX

getY

setW

getW

toArray

equals

equals

plus

minus

over

length

lengthSquared

getReal

dot

negate

add

divide

times

substract

multiply

normalize

setValue