ucar.unidata.geoloc.projection
Class ProjectionAdapter

java.lang.Object
  ucar.unidata.geoloc.ProjectionImpl
      ucar.unidata.geoloc.projection.ProjectionAdapter

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Projection

public class ProjectionAdapter
extends ProjectionImpl

Adapts a Projection interface into a subclass of ProjectionImpl, so we can assume a Projection is a ProjectionImpl without loss of generality.

Author:

John Caron

See Also:

Projection, ProjectionImpl, Serialized Form

Field Summary

Fields inherited from class ucar.unidata.geoloc.ProjectionImpl

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

Constructor Summary

ProjectionAdapter(Projection proj)
Create a new ProjectionImpl from a Projection

Method Summary

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 p) Check for equality with the object in question
static ProjectionImpl	factory(Projection proj) Create a ProjectionImpl from the projection
java.lang.String	getClassName() Get the class name
ProjectionRect	getDefaultMapArea() Get a reasonable bounding box for this projection.
ProjectionPoint	latLonToProj(LatLonPoint latlon, ProjectionPointImpl result) Convert a LatLonPoint to projection coordinates
java.lang.String	paramsToString() Get the parameters as a String
LatLonPoint	projToLatLon(ProjectionPoint world, LatLonPointImpl result) 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, clone, getDefaultMapAreaLL, getHeader, getLatLonBoundingBox, getName, getProjectionParameters, getProjectionTypeLabel, isLatLon, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProjBB, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLonBB, setDefaultMapArea, setName, toString

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ProjectionAdapter

public ProjectionAdapter(Projection proj)

Create a new ProjectionImpl from a Projection

Parameters:

proj - projection to use

Method Detail

factory

public static ProjectionImpl factory(Projection proj)

Create a ProjectionImpl from the projection

Parameters:

proj - projection

Returns:

a ProjectionImpl representing the projection

constructCopy

public ProjectionImpl constructCopy()

copy constructor - avoid clone !!

Specified by:

constructCopy in class ProjectionImpl

Returns:

a copy of this Projection

getClassName

public java.lang.String getClassName()

Get the class name

Specified by:

getClassName in interface Projection

Overrides:

getClassName in class ProjectionImpl

Returns:

the class name

paramsToString

public java.lang.String paramsToString()

Get the parameters as a String

Specified by:

paramsToString in interface Projection

Specified by:

paramsToString in class ProjectionImpl

Returns:

the parameters as a String

equals

public boolean equals(java.lang.Object p)

Check for equality with the object in question

Specified by:

equals in interface Projection

Specified by:

equals in class ProjectionImpl

Parameters:

p - object in question

Returns:

true if the represent the same projection

latLonToProj

public ProjectionPoint latLonToProj(LatLonPoint latlon,
                                    ProjectionPointImpl result)

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

result - the object to write to

Returns:

the given result

projToLatLon

public LatLonPoint projToLatLon(ProjectionPoint world,
                                LatLonPointImpl result)

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:

world - convert from these projection coordinates

result - the object to write to

Returns:

LatLonPoint convert to these lat/lon coordinates

crossSeam

public boolean crossSeam(ProjectionPoint pt1,
                         ProjectionPoint pt2)

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

getDefaultMapArea

public ProjectionRect getDefaultMapArea()

Get a reasonable bounding box for this projection.

Specified by:

getDefaultMapArea in interface Projection

Overrides:

getDefaultMapArea in class ProjectionImpl

Returns:

reasonable bounding box