org.ode4j.math
Class DVector6

java.lang.Object
  org.ode4j.math.DVector6

public class DVector6
extends java.lang.Object

Constructor Summary

DVector6()

DVector6(double d0, double d1, double d2, double d3, double d4, double d5)

DVector6(DVector6 v2)

Method Summary

void	add(int i, double d)
int	dim()
boolean	equals(DVector6 v2)
double	get(int i)
double	get0()
double	get1()
double	get2()
double	get3()
double	get4()
double	get5()
double	length()
double	lengthSquared()
void	normalize() this may be called for vectors `a' with extremely small magnitude, for example the result of a cross product on two nearly perpendicular vectors.
boolean	safeNormalize6() this may be called for vectors `a' with extremely small magnitude, for example the result of a cross product on two nearly perpendicular vectors.
DVector6	set(double[] a)
DVector6	set(double d0, double d1, double d2, double d3, double d4, double d5)
void	set(DVector6 v2)
void	set(int i, double d) Set a vector/matrix at position i to a specific value.
void	set0(double d)
void	set1(double d)
void	set2(double d)
void	set3(double d)
void	set4(double d)
void	set5(double d)
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DVector6

public DVector6()

DVector6

public DVector6(DVector6 v2)

DVector6

public DVector6(double d0,
                double d1,
                double d2,
                double d3,
                double d4,
                double d5)

Method Detail

set

public DVector6 set(double d0,
                    double d1,
                    double d2,
                    double d3,
                    double d4,
                    double d5)

set

public DVector6 set(double[] a)

set

public void set(DVector6 v2)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

dim

public int dim()

get0

public double get0()

get1

public double get1()

get2

public double get2()

get3

public double get3()

get4

public double get4()

get5

public double get5()

get

public final double get(int i)

equals

public boolean equals(DVector6 v2)

set0

public void set0(double d)

set1

public void set1(double d)

set2

public void set2(double d)

set3

public void set3(double d)

set4

public void set4(double d)

set5

public void set5(double d)

set

public final void set(int i,
                      double d)

Set a vector/matrix at position i to a specific value.

add

public void add(int i,
                double d)

length

public final double length()

Returns:

The geometric length of this vector.

lengthSquared

public final double lengthSquared()

safeNormalize6

public final boolean safeNormalize6()

this may be called for vectors `a' with extremely small magnitude, for example the result of a cross product on two nearly perpendicular vectors. we must be robust to these small vectors. to prevent numerical error, first find the component a[i] with the largest magnitude and then scale all the components by 1/a[i]. then we can compute the length of `a' and scale the components by 1/l. this has been verified to work with vectors containing the smallest representable numbers.

normalize

public void normalize()

this may be called for vectors `a' with extremely small magnitude, for example the result of a cross product on two nearly perpendicular vectors. we must be robust to these small vectors. to prevent numerical error, first find the component a[i] with the largest magnitude and then scale all the components by 1/a[i]. then we can compute the length of `a' and scale the components by 1/l. this has been verified to work with vectors containing the smallest representable numbers.