Package georegression.geometry

Class UtilPoint4D_F64

java.lang.Object

georegression.geometry.UtilPoint4D_F64

public class UtilPoint4D_F64
extends Object

Constructor Summary

Constructors

Constructor	Description
UtilPoint4D_F64()

Method Summary

Modifier and Type	Method	Description
static Point3D_F64	h_to_e(Point4D_F64 p)	Converts a point from homogenous coordinates into Euclidean
static void	h_to_e(Point4D_F64 p, Point3D_F64 out)
static boolean	isInfiniteH(Point4D_F64 p, double tol)	Checks to see if the homogenous 3D point lies on the plane at infinity
static List<Point4D_F64>	random(double min, double max, int num, Random rand)
static List<Point4D_F64>	randomN(Point3D_F64 center, double w, double stdev, int num, Random rand)	Normally distributed homogenous 3D point.
static List<Point4D_F64>	randomN(Point4D_F64 center, double stdev, int num, Random rand)	Normally distributed random point with the mean (center) specified and each axis having the same standard deviation.

Methods inherited from class java.lang.Object

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

Constructor Details

UtilPoint4D_F64

public UtilPoint4D_F64()

Method Details

isInfiniteH

public static boolean isInfiniteH(Point4D_F64 p,
 double tol)

Checks to see if the homogenous 3D point lies on the plane at infinity

Parameters:

p - (Input) Homogenous point

tol - (Input) tolerance. Try EPS

Returns:

true if on plane at infinity

randomN

public static List<Point4D_F64> randomN(Point4D_F64 center,
 double stdev,
 int num,
 Random rand)

Normally distributed random point with the mean (center) specified and each axis having the same standard deviation.

Parameters:

center -

stdev -

num -

rand -

Returns:

randomN

public static List<Point4D_F64> randomN(Point3D_F64 center,
 double w,
 double stdev,
 int num,
 Random rand)

Normally distributed homogenous 3D point. w is fixed

random

public static List<Point4D_F64> random(double min,
 double max,
 int num,
 Random rand)

h_to_e

public static Point3D_F64 h_to_e(Point4D_F64 p)

Converts a point from homogenous coordinates into Euclidean

Parameters:

p - 3D point in homogenous coordinates

Returns:

3D point

h_to_e

public static void h_to_e(Point4D_F64 p,
 Point3D_F64 out)