source: josm/src/org/openstreetmap/josm/data/Bounds.java@ 78

package org.openstreetmap.josm.data;

import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.data.projection.Projection;

/**
 * This is a simple data class for "rectangular" areas of the world, given in 
 * lat/lon min/max values.
 * 
 * Do not confuse this with "Area", which is an OSM-primitive for a vector of nodes, 
 * describing some area (like a sea).
 * 
 * @author imi
 */
public class Bounds {
        /**
         * The minimum and maximum coordinates.
         */
        public LatLon min, max;

        /**
         * Construct bounds out of two points
         */
        public Bounds(LatLon min, LatLon max) {
                this.min = min;
                this.max = max;
        }

        /**
         * Construct bounds that span the whole world.
         */
        public Bounds() {
                min = new LatLon(-Projection.MAX_LAT, -Projection.MAX_LON);
                max = new LatLon(Projection.MAX_LAT, Projection.MAX_LON);
        }
        
        @Override
        public String toString() {
                return "Bounds["+min.lat()+","+min.lon()+","+max.lat()+","+max.lon()+"]";
        }

        /**
         * Extend the bounds if necessary to include the given point.
         */
        public void extend(LatLon ll) {
                if (ll.lat() < min.lat() || ll.lon() < min.lon())
                        min = new LatLon(Math.min(ll.lat(), min.lat()), Math.min(ll.lon(), min.lon()));
                if (ll.lat() > max.lat() || ll.lon() > max.lon())
                        max = new LatLon(Math.max(ll.lat(), max.lat()), Math.max(ll.lon(), max.lon()));
        }
}