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Utilities for Tokyo Datum, WGS84 and Japan Plane Rectangular

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package org.nkjmlab.gis.datum;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.nkjmlab.gis.datum.jprect.LatLonWithZone;
import org.nkjmlab.gis.datum.jprect.ZoneId;

public class LatLonBox {

  public static final double PIXEL = 256;

  private LatLon northWest;
  private LatLon southEast;

  private LatLon southWest;
  private LatLon northEast;

  public LatLonBox(LatLon northWest, LatLon southEast) {
    this.northWest = northWest;
    this.southEast = southEast;
    this.southWest = new LatLon(southEast.getLat(), northWest.getLon(), northWest.basis);
    this.northEast = new LatLon(northWest.getLat(), southEast.getLon(), northWest.basis);
  }

  public LatLon getNorthWest() {
    return northWest;
  }

  public LatLon getSouthEast() {
    return southEast;
  }

  public LatLon getSouthWest() {
    return southWest;
  }

  public LatLon getNorthEast() {
    return northEast;
  }

  public double getNorthEdgeLat(Basis basis) {
    return northWest.getLat(basis);
  }

  public double getSouthEdgeLat(Basis basis) {
    return southEast.getLat(basis);
  }

  public double getWestEdgeLon(Basis basis) {
    return northWest.getLon(basis);
  }

  public double getEastEdgeLon(Basis basis) {
    return southEast.getLon(basis);
  }

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

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

  @Override
  public String toString() {
    return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
  }

  public double getLatDistance(Basis basis) {
    return Math.abs(getNorthEdgeLat(basis) - getSouthEdgeLat(basis));
  }

  public double getLatDistanceByPixel(Basis basis) {
    return getLatDistance(basis) / PIXEL;
  }

  public double getLonDistance(Basis basis) {
    return Math.abs(getEastEdgeLon(basis) - getWestEdgeLon(basis));
  }

  public double getLonDistanceByPixel(Basis basis) {
    return getLonDistance(basis) / PIXEL;
  }

  public double getXDistance(ZoneId zoneId, DistanceUnit distanceUnit) {
    return new LatLonWithZone(getNorthWest(), zoneId)
        .distance(new LatLonWithZone(getSouthWest(), zoneId), distanceUnit);
  }

  public double getYDistance(ZoneId zoneId, DistanceUnit distanceUnit) {
    return new LatLonWithZone(getNorthWest(), zoneId)
        .distance(new LatLonWithZone(getNorthEast(), zoneId), distanceUnit);

  }

}