ucar.unidata.geoloc.projection.proj4

Class EquidistantAzimuthalProjection

java.lang.Object

ucar.unidata.geoloc.ProjectionImpl

ucar.unidata.geoloc.projection.proj4.EquidistantAzimuthalProjection

All Implemented Interfaces:

java.io.Serializable, Projection

public class EquidistantAzimuthalProjection
extends ProjectionImpl

AzimuthalEquidistant Projection. Port from proj4.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	EQUATOR
static int	NORTH_POLE
static int	OBLIQUE
static int	SOUTH_POLE

Fields inherited from class ucar.unidata.geoloc.ProjectionImpl

atts, defaultMapArea, 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
EquidistantAzimuthalProjection()
EquidistantAzimuthalProjection(double lat0, double lon0, double falseEasting, double falseNorthing, Earth earth)

Method Summary

Modifier and Type	Method and Description
ProjectionImpl	constructCopy() copy constructor - avoid clone !!
boolean	crossSeam(ProjectionPoint pt1, ProjectionPoint pt2) Does the line between these two points cross the projection "seam".
boolean	equals(java.lang.Object o) Returns true if this represents the same Projection as proj.
int	hashCode()
ProjectionPoint	latLonToProj(LatLonPoint latlon, ProjectionPointImpl xy) Convert a LatLonPoint to projection coordinates
java.lang.String	paramsToString() Get a string representation of the projection parameters
LatLonPoint	projToLatLon(ProjectionPoint ppt, LatLonPointImpl lp) Convert projection coordinates to a LatLonPoint Note: a new object is not created on each call for the return value.

Methods inherited from class ucar.unidata.geoloc.ProjectionImpl

addParameter, addParameter, addParameter, findProjectionParameter, getClassName, getDefaultMapArea, getDefaultMapAreaLL, getHeader, getName, getProjectionParameters, getProjectionTypeLabel, isLatLon, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProjBB, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLonBB, projToLatLonBBold, setDefaultMapArea, setName, 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

Field Detail

NORTH_POLE

public static final int NORTH_POLE

See Also:

Constant Field Values

SOUTH_POLE

public static final int SOUTH_POLE

See Also:

Constant Field Values

EQUATOR

public static final int EQUATOR

See Also:

Constant Field Values

OBLIQUE

public static final int OBLIQUE

See Also:

Constant Field Values

Constructor Detail

EquidistantAzimuthalProjection

public EquidistantAzimuthalProjection()

EquidistantAzimuthalProjection

public EquidistantAzimuthalProjection(double lat0,
                                      double lon0,
                                      double falseEasting,
                                      double falseNorthing,
                                      Earth earth)

Method Detail

constructCopy

public ProjectionImpl constructCopy()

Description copied from class: ProjectionImpl

copy constructor - avoid clone !!

Specified by:

constructCopy in class ProjectionImpl

Returns:

a copy of this Projection. TODO return Projection in ver6

latLonToProj

public ProjectionPoint latLonToProj(LatLonPoint latlon,
                                    ProjectionPointImpl xy)

Description copied from class: ProjectionImpl

Convert a LatLonPoint to projection coordinates

Specified by:

latLonToProj in interface Projection

Specified by:

latLonToProj in class ProjectionImpl

Parameters:

latlon - convert from these lat, lon coordinates

xy - the object to write to

Returns:

the given destPoint

projToLatLon

public LatLonPoint projToLatLon(ProjectionPoint ppt,
                                LatLonPointImpl lp)

Description copied from class: ProjectionImpl

Convert projection coordinates to a LatLonPoint Note: a new object is not created on each call for the return value.

Specified by:

projToLatLon in interface Projection

Specified by:

projToLatLon in class ProjectionImpl

Parameters:

ppt - convert from these projection coordinates

lp - the object to write to

Returns:

LatLonPoint convert to these lat/lon coordinates

paramsToString

public java.lang.String paramsToString()

Description copied from class: ProjectionImpl

Get a string representation of the projection parameters

Specified by:

paramsToString in interface Projection

Specified by:

paramsToString in class ProjectionImpl

Returns:

string representation of the projection parameters

crossSeam

public boolean crossSeam(ProjectionPoint pt1,
                         ProjectionPoint pt2)

Description copied from class: ProjectionImpl

Does the line between these two points cross the projection "seam".

Specified by:

crossSeam in interface Projection

Specified by:

crossSeam in class ProjectionImpl

Parameters:

pt1 - the line goes between these two points

pt2 - the line goes between these two points

Returns:

false if there is no seam

equals

public boolean equals(java.lang.Object o)

Description copied from class: ProjectionImpl

Returns true if this represents the same Projection as proj.

Specified by:

equals in interface Projection

Specified by:

equals in class ProjectionImpl

Parameters:

o - projection in question

Returns:

true if this represents the same Projection as proj.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object