ucar.unidata.geoloc.projection.proj4

Class PolyconicProjection

java.lang.Object

ucar.unidata.geoloc.projection.AbstractProjection

ucar.unidata.geoloc.projection.proj4.PolyconicProjection

All Implemented Interfaces:

Projection

@Immutable
public class PolyconicProjection
extends AbstractProjection

Polyconic Projection. This file was semi-automatically converted from the public-domain USGS PROJ source. Bernhard Jenny, 19 September 2010: fixed spherical inverse.

Field Summary

Fields inherited from class ucar.unidata.geoloc.projection.AbstractProjection

atts, EARTH_RADIUS, INDEX_LAT, INDEX_LON, INDEX_X, INDEX_Y, isLatLon, name, PI, PI_OVER_2, PI_OVER_4, TOLERANCE

Constructor Summary

Constructors

Constructor and Description
PolyconicProjection()
PolyconicProjection(double lat0, double lon0)
PolyconicProjection(double lat0, double lon0, double falseEasting, double falseNorthing, Earth ellipsoid)
PolyconicProjection(double lat0, double lon0, Earth ellipsoid)

Method Summary

Modifier and Type	Method and Description
Projection	constructCopy() copy constructor - avoid clone !!
boolean	crossSeam(ProjectionPoint pt1, ProjectionPoint pt2) This returns true when the line between pt1 and pt2 crosses the seam.
boolean	equals(Object o)
Earth	getEarth()
double	getFalseEasting() Get the false easting, in km.
double	getFalseNorthing() Get the false northing, in km.
double	getOriginLatitude() Get the origin longitude.
double	getOriginLongitude() Get the origin longitude.
String	getProjectionTypeLabel() Get the label to be used in the gui for this type of projection
int	hashCode()
ProjectionPoint	latLonToProj(LatLonPoint latlon) Convert a LatLonPoint to projection coordinates.
String	paramsToString() Create a String of the parameters.
LatLonPoint	projToLatLon(ProjectionPoint world) Convert projection coordinates to a LatLonPoint.

Methods inherited from class ucar.unidata.geoloc.projection.AbstractProjection

addParameter, addParameter, addParameter, addParameter, findProjectionParameter, getClassName, getHeader, getMinOrMaxLon, getName, getProjectionAttributes, getProjectionParameters, isLatLon, latLonToProjBB, projToLatLonBB, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ucar.unidata.geoloc.Projection

latLonToProj, projToLatLon

Constructor Detail

PolyconicProjection

public PolyconicProjection()

PolyconicProjection

public PolyconicProjection(double lat0,
                           double lon0)

PolyconicProjection

public PolyconicProjection(double lat0,
                           double lon0,
                           Earth ellipsoid)

PolyconicProjection

public PolyconicProjection(double lat0,
                           double lon0,
                           double falseEasting,
                           double falseNorthing,
                           Earth ellipsoid)

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getEarth

public Earth getEarth()

getOriginLatitude

public double getOriginLatitude()

Get the origin longitude.

Returns:

the origin longitude in degrees

getOriginLongitude

public double getOriginLongitude()

Get the origin longitude.

Returns:

the origin longitude in degrees

getFalseEasting

public double getFalseEasting()

Get the false easting, in km.

Returns:

the false easting in km

getFalseNorthing

public double getFalseNorthing()

Get the false northing, in km.

Returns:

the false northing in km

getProjectionTypeLabel

public String getProjectionTypeLabel()

Get the label to be used in the gui for this type of projection

Overrides:

getProjectionTypeLabel in class AbstractProjection

Returns:

Type label

paramsToString

public String paramsToString()

Create a String of the parameters.

Specified by:

paramsToString in interface Projection

Specified by:

paramsToString in class AbstractProjection

Returns:

a String of the parameters

crossSeam

public boolean crossSeam(ProjectionPoint pt1,
                         ProjectionPoint pt2)

This returns true when the line between pt1 and pt2 crosses the seam. When the cone is flattened, the "seam" is lon0 +- 180.

Parameters:

pt1 - point 1

pt2 - point 2

Returns:

true when the line between pt1 and pt2 crosses the seam.

latLonToProj

public ProjectionPoint latLonToProj(LatLonPoint latlon)

Description copied from interface: Projection

Convert a LatLonPoint to projection coordinates.

projToLatLon

public LatLonPoint projToLatLon(ProjectionPoint world)

Description copied from interface: Projection

Convert projection coordinates to a LatLonPoint.

constructCopy

public Projection constructCopy()

Description copied from class: AbstractProjection

copy constructor - avoid clone !!

Specified by:

constructCopy in class AbstractProjection

Returns:

a copy of this Projection.