georegression.geometry

Class UtilVector3D_F64

java.lang.Object

georegression.geometry.UtilVector3D_F64

public class UtilVector3D_F64
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
UtilVector3D_F64()

Method Summary

Modifier and Type	Method and Description
static double	acute(Vector3D_F64 a, Vector3D_F64 b) Returns the acute angle between the two vectors.
static Vector3D_F64	convert(org.ejml.data.DenseMatrix64F m) Converts matrices into vectors.
static org.ejml.data.DenseMatrix64F	createMatrix(org.ejml.data.DenseMatrix64F R, Vector3D_F64... v) Creates a matrix from the set of column vectors.
static Vector3D_F64	createRandom(double min, double max, java.util.Random rand) Creates a random vector where each axis is selected from a uniform distribution.
static boolean	isIdentical(Vector3D_F64 a, Vector3D_F64 b, double tol) Checks to see if the two vectors are identical to within tolerance.
static void	normalize(Vector3D_F64 v) Rescales the vector such that its normal is equal to one.

Methods inherited from class java.lang.Object

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

Constructor Detail

UtilVector3D_F64

public UtilVector3D_F64()

Method Detail

createRandom

public static Vector3D_F64 createRandom(double min,
                                        double max,
                                        java.util.Random rand)

Creates a random vector where each axis is selected from a uniform distribution.

Parameters:

min - minimum value

max - maximum value

rand - random number generator

Returns:

the new random vector

isIdentical

public static boolean isIdentical(Vector3D_F64 a,
                                  Vector3D_F64 b,
                                  double tol)

Checks to see if the two vectors are identical to within tolerance. Each axis is checked individually.

Parameters:

a - First vector.

b - Second vector.

tol - Tolerance for equality.

Returns:

true if identical and false if not.

normalize

public static void normalize(Vector3D_F64 v)

Rescales the vector such that its normal is equal to one.

Parameters:

v - Vector being normalized.

createMatrix

public static org.ejml.data.DenseMatrix64F createMatrix(org.ejml.data.DenseMatrix64F R,
                                                        Vector3D_F64... v)

Creates a matrix from the set of column vectors. Each vector is a column in the new matrix.

Parameters:

v - Set of vectors. Not modified.

R - If not null the vectors are stored here.

Returns:

Matrix.

convert

public static Vector3D_F64 convert(org.ejml.data.DenseMatrix64F m)

Converts matrices into vectors. All matrices must be vectors with 3 elements.

Parameters:

m - A 3x1 or 1x3 matrix

Returns:

Equivalent 3D vector

acute

public static double acute(Vector3D_F64 a,
                           Vector3D_F64 b)

Returns the acute angle between the two vectors. Computed using the dot product.

Parameters:

a - vector

b - vector

Returns:

acute angle