com.partnersoft.geometry.projection
Class ProjectionLib

java.lang.Object
  com.partnersoft.geometry.projection.ProjectionLib

All Implemented Interfaces:

ProjectionConstants

public class ProjectionLib
extends java.lang.Object
implements ProjectionConstants

Some standard functions, mostly duly ported from PROJ source.

Author:

Paul Reavis Copyright 2004 Partner Software, Inc.

Field Summary

static double	METERS_TO_STANDARD_FEET
static double	METERS_TO_US_SURVEY_FEET

Fields inherited from interface com.partnersoft.geometry.projection.ProjectionConstants

ATOL, DEG2RAD, EPSILON, FOURTHPI, HALFPI, INTERNATIONAL_FEET_TO_METERS, METERS_TO_INTERNATIONAL_FEET, NULL_PROJECTION, ONE_TOL, PI, RAD2DEG, TOL, TWOPI, US_SURVEY_FEET_TO_METERS

Constructor Summary

ProjectionLib()

Method Summary

static double	aacos(double v)
static double	aasin(double v)
static double	aatan2(double n, double d)
static double	asqrt(double v)
static double	hypot(double x, double y) Returns the hypotenuse of a right triangle with sides length x and y.
static double[]	pj_enfn(double inESquared)
static double	pj_msfn(double sinphi, double cosphi, double es)
static double	pj_phi2(double ts, double e)
static double	pj_qsfn(double sinphi, double e, double one_es)
static double	pj_tsfn(double phi, double sinphi, double e)
static double	toDegrees(double radians)
static double	toRadians(double degrees)

Methods inherited from class java.lang.Object

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

Field Detail

METERS_TO_US_SURVEY_FEET

public static final double METERS_TO_US_SURVEY_FEET

See Also:

Constant Field Values

METERS_TO_STANDARD_FEET

public static final double METERS_TO_STANDARD_FEET

See Also:

Constant Field Values

Constructor Detail

ProjectionLib

public ProjectionLib()

Method Detail

hypot

public static double hypot(double x,
                           double y)

Returns the hypotenuse of a right triangle with sides length x and y. Remember 4th grade geometry?

pj_enfn

public static double[] pj_enfn(double inESquared)

pj_tsfn

public static double pj_tsfn(double phi,
                             double sinphi,
                             double e)

pj_phi2

public static double pj_phi2(double ts,
                             double e)
                      throws java.lang.Exception

Throws:

java.lang.Exception

pj_msfn

public static double pj_msfn(double sinphi,
                             double cosphi,
                             double es)

pj_qsfn

public static double pj_qsfn(double sinphi,
                             double e,
                             double one_es)

aasin

public static double aasin(double v)

aacos

public static double aacos(double v)

asqrt

public static double asqrt(double v)

aatan2

public static double aatan2(double n,
                            double d)

toRadians

public static double toRadians(double degrees)

toDegrees

public static double toDegrees(double radians)