/**
* Copyright (c) 2009-2011, chunquedong(YangJiandong)
*
* This file is part of ChunMap project
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE(Version >=3)
*
* History:
* 2010-05-05 Jed Young Creation
*/
package chunmap.model.crs.transf;
import static java.lang.Math.*;
import chunmap.model.coord.Coordinate2D;
import chunmap.model.coord.CPoint;
public class PlanTransform extends SphericalPolar{
public PlanTransform(double f0, double l0) {
super(f0, l0);
}
@Override
public CPoint convert(CPoint p) {
double f=toRadians( p.getY());
double l=toRadians( p.getX());
double cosz=cosz(f,l);
double cota=sinzcosa(f,l)/sinzsina(f,l);
double x=atan(cota/cosz);
double cosx=cos(x);
double y=atan(cosx/cosz);
return new Coordinate2D(y,x);
}
}