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Utilities for Tokyo Datum, WGS84 and Japan Plane Rectangular

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package org.nkjmlab.gis.datum.jprect;

import java.awt.Point;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.nkjmlab.gis.datum.LatLon.Detum;
import org.nkjmlab.gis.datum.LatLon.Unit;
import org.nkjmlab.gis.datum.jprect.util.XYUtils;

/***
 * Japan Plane Rectangular 平面直角座標系（平成十四年国土交通省告示第九号）の系番号付きのXY座標．原則として，単位はメートル．
 * 平面座標系における，XY座標を表すクラス．上方向がX軸正方向，右方向がY軸正方向である．
 *
 * @author Yuu NAKAJIMA
 *
 */

public class XYWithZone extends XY {

  private final BasisWithZone basis;

  public XYWithZone(double x, double y, BasisWithZone basis) {
    super(x, y);
    this.basis = basis;
  }

  public XYWithZone(XY xy, BasisWithZone basis) {
    this(xy.getX(), xy.getY(), basis);
  }

  @Override
  public int hashCode() {
    return HashCodeBuilder.reflectionHashCode(this);
  }

  @Override
  public boolean equals(Object obj) {
    return EqualsBuilder.reflectionEquals(this, obj);
  }

  public BasisWithZone getBasis() {
    return basis;
  }

  public LatLonWithZone toLatLonWithZone() {
    return XYUtils.toLatLonWithZone(this);
  }

  public ZoneId getZoneId() {
    return basis.getZoneId();
  }

  public Unit getUnit() {
    return basis.getUnit();
  }

  public Detum getDetum() {
    return basis.getDetum();
  }

  public Point toRelativeScreenCoord(XYWithZone origin, ScreenSizeBasis screenSizeBasis) {
    return toPoint(toRelativeCoord(origin), screenSizeBasis);
  }

  private static Point toPoint(XY relativeCoord, ScreenSizeBasis screenSizeBasis) {
    int x = (int) screenSizeBasis.toPixel(relativeCoord.getY());
    int y = (int) screenSizeBasis.toPixel(relativeCoord.getX()) * -1;
    Point p = new Point(x, y);
    return p;
  }

  private XY toRelativeCoord(XYWithZone origin) {
    return new XY(getX() - origin.getX(), getY() - origin.getY());
  }

}