Localiser

Class TDHyperboleUtils

java.lang.Object

Localiser.TDHyperboleUtils

public class TDHyperboleUtils
extends java.lang.Object

Contains functions required to calculate a hyperboloid using time delays.

Author:

Jamie Macaulay

Constructor Summary

Constructors

Constructor and Description
TDHyperboleUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static java.util.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 Detail

TDHyperboleUtils

public TDHyperboleUtils()

Method Detail

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 java.util.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.