Package Localiser.algorithms

Class TDHyperboleUtils

java.lang.Object

Localiser.algorithms.TDHyperboleUtils

public class TDHyperboleUtils
extends Object

Contains functions required to calculate a hyperboloid using time delays.

Author:

Jamie Macaulay

Constructor Summary

Constructors

Constructor	Description
TDHyperboleUtils()

Method Summary

Modifier and Type	Method	Description
static ArrayList<javax.vecmath.Point3f[]>	calcTDHyperboloid(double tD, double hDistance, double soundSpeed, float zEnd, float nStrips, int nCircPoints)	Calculates a series of points for the hyperboloid defined by a time delay and between two hydrophones separated by hDistance;
static javax.vecmath.Point3f[]	hyperboloidParXTTS(float a, float c, float z, int n)	Paramteric equation for x,y co-ordinates of a TWO SHEETED SURFACE hyperboloid orientated along the z axis and defined by the Cartesian equation (x^2/a^2)+(y^2/a^2)-(z^2/c^2)=-1
static javax.vecmath.Point3f[]	hyperboloidParXYDR(float a, float c, float z, int n)	Paramteric equation for x,y co-ordinates of a DOUBLY RULED SURFACE hyperboloid orientated along the z axis and defined by the Cartesian equation (x^2/a^2)+(y^2/a^2)+(z^2/c^2)=1

Methods inherited from class java.lang.Object

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

Constructor Details

TDHyperboleUtils

public TDHyperboleUtils()

Method Details

hyperboloidParXYDR

public static javax.vecmath.Point3f[] hyperboloidParXYDR(float a,
 float c,
 float z,
 int n)

Paramteric equation for x,y co-ordinates of a DOUBLY RULED SURFACE hyperboloid orientated along the z axis and defined by the Cartesian equation (x^2/a^2)+(y^2/a^2)+(z^2/c^2)=1

Parameters:

a - -equation constant

c - equation constant

z - z axis position

n - number of x,y points;

Returns:

an array of xy points corresponding to the points of a 3D hyperboloid intersected by an xy plane at height z.

hyperboloidParXTTS

public static javax.vecmath.Point3f[] hyperboloidParXTTS(float a,
 float c,
 float z,
 int n)

Paramteric equation for x,y co-ordinates of a TWO SHEETED SURFACE hyperboloid orientated along the z axis and defined by the Cartesian equation (x^2/a^2)+(y^2/a^2)-(z^2/c^2)=-1

Parameters:

a - -equation constant

c - equation constant

z - z axis position

n - number of x,y points;

Returns:

an array of x,y points corresponding to the points of a 3D hyperboloid intersected by an x,y plane at height z.

calcTDHyperboloid

public static ArrayList<javax.vecmath.Point3f[]> calcTDHyperboloid(double tD,
 double hDistance,
 double soundSpeed,
 float zEnd,
 float nStrips,
 int nCircPoints)

Calculates a series of points for the hyperboloid defined by a time delay and between two hydrophones separated by hDistance;

Parameters:

tD - - time delay in seconds.

hDistance - - distance between hydrophones.

soundSpeed - - sound speed in m/s.

zEnd - - the distance from centre of the array to calculate hyperboloid points for.

nStrips - - the number of strips calculated for the hyperboloid.

nCircPoints - - the number of points calculated for each strip.