001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.data.imagery;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005
006import java.text.MessageFormat;
007import java.util.ArrayList;
008import java.util.List;
009
010import org.openstreetmap.gui.jmapviewer.Coordinate;
011import org.openstreetmap.josm.data.coor.LatLon;
012import org.openstreetmap.josm.data.osm.Node;
013import org.openstreetmap.josm.tools.CheckParameterUtil;
014import org.openstreetmap.josm.tools.Geometry;
015
016/**
017 * @author Vincent
018 *
019 */
020public class Shape {
021
022    private List<Coordinate> coords = new ArrayList<Coordinate>();
023
024    public Shape(String asString, String separator) throws IllegalArgumentException {
025        CheckParameterUtil.ensureParameterNotNull(asString, "asString");
026        String[] components = asString.split(separator);
027        if (components.length % 2 != 0)
028            throw new IllegalArgumentException(MessageFormat.format("Even number of doubles expected in string, got {0}: {1}", components.length, asString));
029        for (int i=0; i<components.length; i+=2) {
030            addPoint(components[i], components[i+1]);
031        }
032    }
033
034    public Shape() {
035    }
036
037    public String encodeAsString(String separator) {
038        StringBuffer sb = new StringBuffer();
039        for (Coordinate c : coords) {
040            if (sb.length() != 0) {
041                sb.append(separator);
042            }
043            sb.append(c.getLat()).append(separator).append(c.getLon());
044        }
045        return sb.toString();
046    }
047
048    public List<Coordinate> getPoints() {
049        return coords;
050    }
051
052    public boolean contains(LatLon latlon) {
053        if (latlon == null)
054            return false;
055        List<Node> nodes = new ArrayList<Node>(coords.size());
056        for (Coordinate c : coords) {
057            nodes.add(new Node(new LatLon(c.getLat(), c.getLon())));
058        }
059        return Geometry.nodeInsidePolygon(new Node(latlon), nodes);
060    }
061
062    public void addPoint(String sLat, String sLon) throws IllegalArgumentException {
063        CheckParameterUtil.ensureParameterNotNull(sLat, "sLat");
064        CheckParameterUtil.ensureParameterNotNull(sLon, "sLon");
065
066        double lat, lon;
067
068        try {
069            lat = Double.parseDouble(sLat);
070            if (!LatLon.isValidLat(lat))
071                throw new IllegalArgumentException(tr("Illegal latitude value ''{0}''", lat));
072        } catch (NumberFormatException e) {
073            throw new IllegalArgumentException(MessageFormat.format("Illegal double value ''{0}''", sLat));
074        }
075
076        try {
077            lon = Double.parseDouble(sLon);
078            if (!LatLon.isValidLon(lon))
079                throw new IllegalArgumentException(tr("Illegal longitude value ''{0}''", lon));
080        } catch (NumberFormatException e) {
081            throw new IllegalArgumentException(MessageFormat.format("Illegal double value ''{0}''", sLon));
082        }
083
084        coords.add(new Coordinate(LatLon.roundToOsmPrecision(lat), LatLon.roundToOsmPrecision(lon)));
085    }
086}