/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001 by:
EXSE, Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/exse/
lat/lon GmbH
http://www.lat-lon.de
It has been implemented within SEAGIS - An OpenSource implementation of OpenGIS specification
(C) 2001, Institut de Recherche pour le D�veloppement (http://sourceforge.net/projects/seagis/)
SEAGIS Contacts: Surveillance de l'Environnement Assist�e par Satellite
Institut de Recherche pour le D�veloppement / US-Espace
mailto:seasnet@teledetection.fr
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53115 Bonn
Germany
E-Mail: poth@lat-lon.de
Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: klaus.greve@uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.model.csct.ct;
// OpenGIS (SEAS) dependencies
import java.awt.geom.Point2D;
import java.util.Locale;
import org.deegree.model.csct.cs.Projection;
import org.deegree.model.csct.resources.css.ResourceKeys;
import org.deegree.model.csct.resources.css.Resources;
/**
*
*/
final class PlateCarreeProjection extends CylindricalProjection
{
private double long0 = 0;
private double lat0 = 0;
private double e2 = 0;
private double r = 0;
/**
* Construct a new map projection from the suplied parameters.
*
* @param parameters The parameter values in standard units.
* @throws MissingParameterException if a mandatory parameter is missing.
*/
protected PlateCarreeProjection(final Projection parameters) throws MissingParameterException
{
super( parameters );
// calculate constants
e2 = (a*a - b*b)/(a*a);
r = Math.sqrt( a*a * (1 - e2) );
}
/**
* Returns a human readable name localized for the specified locale.
*/
public String getName(final Locale locale)
{return Resources.getResources(locale).getString(ResourceKeys.PLATE_CARREE_PROJECTION);}
/**
* Transforms the specified (<var>x</var>,<var>y</var>) coordinate
* and stores the result in <code>ptDst</code>.
*/
protected Point2D transform(double x, double y, final Point2D ptDst) throws TransformException
{
/*
For the forward calculation:
X = R . (Long - longO) . cos(latO)
Y = R . Lat
where R = SQRT[a^2 * (1-e^2)]
and Lat and Long are expressed in radians.
For the reverse calculation:
Lat = Y / R
Long = LongO + (X / R cos(latO))
*/
x = r * ( x - long0 ) * Math.cos( lat0 );
y = r * y;
return new Point2D.Double(x,y);
}
/**
* Transforms the specified (<var>x</var>,<var>y</var>) coordinate
* and stores the result in <code>ptDst</code>.
*/
protected Point2D inverseTransform(double x, double y, final Point2D ptDst) throws TransformException
{
x = long0 + ( x / r * Math.cos(lat0) );
y = y / r;
return new Point2D.Double(x,y);
}
/**
* Returns a hash value for this map projection.
*/
public int hashCode()
{
final long code = Double.doubleToLongBits(1234);
return ((int)code ^ (int)(code >>> 32)) + 37*super.hashCode();
}
/**
* Compares the specified object with
* this map projection for equality.
*/
public boolean equals(final Object object)
{
return false;
}
/**
* Impl�mentation de la partie entre crochets
* de la cha�ne retourn�e par {@link #toString()}.
*/
void toString(final StringBuffer buffer)
{
super.toString(buffer);
}
/**
* Informations about a {@link StereographicProjection}.
*
* @version 1.0
* @author Martin Desruisseaux
*/
static final class Provider extends MapProjection.Provider
{
/**
* Construct a new provider. The type (polar, oblique
* or equatorial) will be choosen automatically according
* the latitude or origin.
*/
public Provider()
{
super("PlateCarree", ResourceKeys.PLATE_CARREE_PROJECTION);
}
/**
* Create a new map projection.
*/
protected Object create(final Projection parameters)
{return new PlateCarreeProjection(parameters);}
}
}