汉景源的博客

1. 创建坐标转换

    /**
     * 创建坐标系转换方法
     * @param sourceWkt 源坐标系WKT定义
     * @param targetWkt 目标坐标系WKT定义
     * @return
     */
public static MathTransform createMathTransform(String sourceWkt, String targetWkt){
    CoordinateReferenceSystem source = null;
    CoordinateReferenceSystem target = null;
    try {
        source = CRS.parseWKT(sourceWkt);
        target = CRS.parseWKT(targetWkt);
    } catch (FactoryException e) {
        e.printStackTrace();
    }

    MathTransform transform = null;
    try {
        transform = CRS.findMathTransform(source, target);
    } catch (FactoryException e) {
        e.printStackTrace();
    }
    return transform;
}

2. 将wkt转换为geometry

    /**
     * 将wkt数据转为geometry数据
     * @param wkt
     * @return
     */
public static Geometry transformWktToGeometry(String wkt){
    GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory();
    WKTReader reader = new WKTReader(geometryFactory);
    Geometry geometry = null;
    try {
        geometry = (Geometry) reader.read(wkt);
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return geometry;
}

3. 将坐标转为指定坐标系

    /**
     * 将输入要素转换为指定坐标系
     * @param geometry
     * @param mathTransform 坐标转换方法
     * @return
     */
public static Geometry transformGeometryProjection(Geometry geometry, MathTransform mathTransform){
    Geometry result = null;
    try {
        result = JTS.transform(geometry, mathTransform);
    } catch (TransformException e) {
        e.printStackTrace();
    }
    return result;
}