Package jmri.jmrix.rps

Class InitialAlgorithm

java.lang.Object

jmri.jmrix.rps.InitialAlgorithm

All Implemented Interfaces:

Calculator

public class InitialAlgorithm
extends java.lang.Object
implements Calculator

Implementation of 1st algorithm for reducing Readings.

This algorithm was provided by Robert Ashenfelter based in part on the work of Ralph Bucher in his paper "Exact Solution for Three Dimensional Hyperbolic Positioning Algorithm and Synthesizable VHDL Model for Hardware Implementation".

Neither Ashenfelter nor Bucher provide any guarantee as to the intellectual property status of this algorithm. Use it at your own risk.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	ngps
(package private) double	r0
(package private) double	ri
(package private) double	rj
(package private) double	rk
(package private) double	rl
(package private) Point3d	sensor1
(package private) Point3d	sensor2
(package private) Point3d	sensor3
(package private) Point3d	sensor4
(package private) double	vsound
(package private) double	x	The following is the original algorithm, as provided by Ash as a C routine
(package private) double	x0
(package private) double	xi
(package private) double	xj
(package private) double	xk
(package private) double	xl
(package private) double	y	The following is the original algorithm, as provided by Ash as a C routine
(package private) double	y0
(package private) double	yi
(package private) double	yj
(package private) double	yk
(package private) double	yl
(package private) double	z	The following is the original algorithm, as provided by Ash as a C routine
(package private) double	z0
(package private) double	zi
(package private) double	zj
(package private) double	zk
(package private) double	zl

Constructor Summary

Constructors

Constructor	Description
InitialAlgorithm(Point3d[] sensors, double vsound)
InitialAlgorithm(Point3d sensor1, Point3d sensor2, Point3d sensor3, double vsound)
InitialAlgorithm(Point3d sensor1, Point3d sensor2, Point3d sensor3, Point3d sensor4, double vsound)

Method Summary

Modifier and Type	Method	Description
Measurement	convert(Reading r)
Measurement	convert(Reading r, Point3d guess)	Seed the conversion using an estimated position
Measurement	convert(Reading r, Measurement last)	Seed the conversion using a last measurement
(package private) boolean	gps()

Methods inherited from class java.lang.Object

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

Field Detail

vsound

double vsound

sensor1

Point3d sensor1

sensor2

Point3d sensor2

sensor3

Point3d sensor3

sensor4

Point3d sensor4

x

double x

The following is the original algorithm, as provided by Ash as a C routine

y

double y

The following is the original algorithm, as provided by Ash as a C routine

z

double z

The following is the original algorithm, as provided by Ash as a C routine

x0

double x0

y0

double y0

z0

double z0

r0

double r0

ngps

int ngps

xi

double xi

yi

double yi

zi

double zi

xj

double xj

yj

double yj

zj

double zj

xk

double xk

yk

double yk

zk

double zk

xl

double xl

yl

double yl

zl

double zl

ri

double ri

rj

double rj

rk

double rk

rl

double rl

Constructor Detail

InitialAlgorithm

public InitialAlgorithm(Point3d[] sensors,
                        double vsound)

InitialAlgorithm

public InitialAlgorithm(Point3d sensor1,
                        Point3d sensor2,
                        Point3d sensor3,
                        double vsound)

InitialAlgorithm

public InitialAlgorithm(Point3d sensor1,
                        Point3d sensor2,
                        Point3d sensor3,
                        Point3d sensor4,
                        double vsound)

Method Detail

convert

public Measurement convert(Reading r)

Specified by:

convert in interface Calculator

convert

public Measurement convert(Reading r,
                           Point3d guess)

Seed the conversion using an estimated position

Specified by:

convert in interface Calculator

convert

public Measurement convert(Reading r,
                           Measurement last)

Seed the conversion using a last measurement

Specified by:

convert in interface Calculator

gps

boolean gps()