GeoConverter.java
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package com.bsth.util;
import org.geolatte.geom.LineString;
import org.geolatte.geom.Point;
import org.geolatte.geom.Polygon;
import org.geolatte.geom.codec.Wkt;
/**
* @author Hill
*/
public class GeoConverter {
public static Point pointBd2wgs(String wkt) {
if (wkt.indexOf("POINT") != 0) {
throw new IllegalArgumentException("异常的Point wkt数据");
}
CoordinateConverter.Location location = CoordinateConverter.LocationMake(wkt);
location = CoordinateConverter.transformFromBDToWGS(location);
return (Point) Wkt.fromWkt(String.format("POINT(%s)", location.toString()));
}
public static Point pointWgs2bd(String wkt) {
if (wkt.indexOf("POINT") != 0) {
throw new IllegalArgumentException("异常的Point wkt数据");
}
CoordinateConverter.Location location = CoordinateConverter.LocationMake(wkt);
location = CoordinateConverter.transformFromBDToWGS(location);
return (Point) Wkt.fromWkt(String.format("POINT(%s)", location.toString()));
}
public static Polygon polygonBd2wgs(String wkt) {
if (wkt.indexOf("POLYGON") != 0) {
throw new IllegalArgumentException("异常的Polygon wkt数据");
}
StringBuilder sb = new StringBuilder("POLYGON((");
wkt = wkt.substring(9, wkt.length() - 2);
for (String point : wkt.split(",")) {
CoordinateConverter.Location location = CoordinateConverter.LocationMake(point.trim());
location = CoordinateConverter.transformFromBDToWGS(location);
sb.append(location.toString()).append(",");
}
sb.deleteCharAt(sb.length() - 1).append("))");
return (Polygon) Wkt.fromWkt(sb.toString());
}
public static LineString lineStringBd2wgs(String wkt) {
if (wkt.indexOf("LINESTRING") != 0) {
throw new IllegalArgumentException("异常的LineString wkt数据");
}
StringBuilder sb = new StringBuilder("LINESTRING(");
wkt = wkt.substring(11, wkt.length() - 1);
for (String coordinate : wkt.split(",")) {
CoordinateConverter.Location location = CoordinateConverter.LocationMake(coordinate.trim());
location = CoordinateConverter.transformFromBDToWGS(location);
sb.append(location.toString()).append(",");
}
sb.deleteCharAt(sb.length() - 1).append(")");
return (LineString) Wkt.fromWkt(sb.toString());
}
public static LineString lineStringWgs2bd(String wkt) {
if (wkt.indexOf("LINESTRING") != 0) {
throw new IllegalArgumentException("异常的LineString wkt数据");
}
StringBuilder sb = new StringBuilder("LINESTRING(");
wkt = wkt.substring(11, wkt.length() - 1);
for (String coordinate : wkt.split(",")) {
CoordinateConverter.Location location = CoordinateConverter.LocationMake(coordinate.trim());
location = CoordinateConverter.transformFromWGSToBD(location);
sb.append(location.toString()).append(",");
}
sb.deleteCharAt(sb.length() - 1).append(")");
return (LineString) Wkt.fromWkt(sb.toString());
}
}