/*
 * Licensed Materials - Property of Rogue Wave Software, Inc. 
 * © Copyright Rogue Wave Software, Inc. 2014, 2015 
 * © Copyright IBM Corp. 2009, 2014
 * © Copyright ILOG 1996, 2009
 * All Rights Reserved.
 *
 * Note to U.S. Government Users Restricted Rights:
 * The Software and Documentation were developed at private expense and
 * are "Commercial Items" as that term is defined at 48 CFR 2.101,
 * consisting of "Commercial Computer Software" and
 * "Commercial Computer Software Documentation", as such terms are
 * used in 48 CFR 12.212 or 48 CFR 227.7202-1 through 227.7202-4,
 * as applicable.
 */

import ilog.views.maps.IlvAngularUnit;
import ilog.views.maps.IlvCoordinate;
import ilog.views.maps.IlvLinearUnit;
import ilog.views.maps.IlvUnit;
import ilog.views.maps.projection.IlvHorizontalShiftDatum;
import ilog.views.maps.srs.coordsys.IlvGeographicCoordinateSystem;
import ilog.views.maps.srs.coordsys.IlvMeridian;
import ilog.views.maps.srs.coordtrans.IlvCoordinateTransformation;
import ilog.views.maps.srs.coordtrans.IlvCoordinateTransformationException;

public class Sample3 {
  
  public void staticDef() {
  IlvLinearUnit unit = IlvLinearUnit.FT;
  double meters = 100D;
  double feet = unit.fromMeters(meters);
  System.out.println("100 m = " + feet + " ft");
//   The following is also valid, as the kernel unit for lengths
//   is the meter.
  double other_feet = unit.fromKernel(meters);
  System.out.println("100 m = " + feet + " ft");
  }
  
  public void registeredDef() {
    IlvUnit unit = IlvUnit.GetRegisteredUnit("ft");
    double meters = 100D;
    double feet = unit.fromKernel(meters);
    System.out.println("100 m = " + feet + " ft");
  }
  
  public void geoGrad() throws IlvCoordinateTransformationException {
    IlvAngularUnit unit = IlvAngularUnit.GRAD;
    IlvGeographicCoordinateSystem gcs = 
       new IlvGeographicCoordinateSystem("My coordsys",
                                          IlvHorizontalShiftDatum.WGS84,
                                          IlvMeridian.GREENWICH,
                                          unit,
                                          null); // No altitude

//     A transformation from WGS84 geographic coordinate system
//     with degrees as unit to our own coordinate system:
    IlvCoordinateTransformation ct =
       IlvCoordinateTransformation.CreateTransformation(
          IlvGeographicCoordinateSystem.WGS84,
          gcs);

//     Example of conversion.
    double lambda = IlvAngularUnit.DEGREE.toRadians(-45D);
    double phi =    IlvAngularUnit.DEGREE.toRadians(30D);
    IlvCoordinate coord = new IlvCoordinate(lambda,phi);

//     Convert coordinate, letting the transformation allocate the
//     result.
    IlvCoordinate result = ct.transform(coord,null);

    System.out.println("The expression of point 45W 30N is ");
    System.out.println("x = " + coord.x + " grad");
    System.out.println("y = " + coord.y + " grad");
  }
}