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The main module contains the GeoTools public interfaces that are used by other GeoTools modules (and GeoTools applications). Where possible we make use industry standard terms as provided by OGC and ISO standards. The formal GeoTools public api consists of gt-metadata, jts and the gt-main module. The main module contains the default implementations that are available provided to other GeoTools modules using our factory system. Factories are obtained from an appropriate FactoryFinder, giving applications a chance configure the factory used using the Factory Hints facilities. FilterFactory ff = CommonFactoryFinder.getFilterFactory(); Expression expr = ff.add( expression1, expression2 ); If you find yourself using implementation specific classes chances are you doing it wrong: Expression expr = new AddImpl( expression1, expressiom2 );

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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2004-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotools.geometry.jts;

import org.locationtech.jts.geom.CoordinateSequence;
import org.locationtech.jts.geom.CoordinateSequenceFactory;
import org.locationtech.jts.geom.impl.CoordinateArraySequenceFactory;
import org.opengis.referencing.operation.MathTransform;
import org.opengis.referencing.operation.TransformException;

/**
 * This coordinate sequence transformer will take a Geometry and transform in a set of curved lines
 * that will be "flattened" in order to get back a set of straight segments. The error in the
 * transform is linked to the "flattening", the higher the flattening, the bigger the error, but
 * also, the lesser the number of points that will be used to represent the resulting coordinate
 * sequence.
 *
 * @todo Not yet implemented.
 */
public class PreciseCoordinateSequenceTransformer implements CoordinateSequenceTransformer {
    CoordinateSequenceFactory csFactory;
    double flatness;

    public PreciseCoordinateSequenceTransformer() {
        csFactory = CoordinateArraySequenceFactory.instance();
    }

    /**
     * @see
     *     org.geotools.geometry.jts.CoordinateSequenceTransformer#transform(org.locationtech.jts.geom.CoordinateSequence,
     *     org.geotools.ct.MathTransform2D)
     */
    public CoordinateSequence transform(CoordinateSequence cs, MathTransform transform)
            throws TransformException {
        //        Coordinate[] scs = cs.toCoordinateArray();
        //        GeneralPath path = new GeneralPath();
        //        path.moveTo(scs[0].x, scs[0].y);
        //        for (int i = 0; i < scs.length; i++) {
        //            path.moveTo(scs[0].x, scs[0].y);
        //        }
        //        Shape transformed = transform.createTransformedShape(path);
        //        PathIterator iterator = transformed.getPathIterator(new AffineTransform(),
        // flatness);
        //        ArrayList coords = new ArrayList(scs.length);
        //        double[] point = new double[6];
        //        while(!iterator.isDone()) {
        //            iterator.next();
        //            iterator.currentSegment(point);
        //            coords.add(new Coordinate(point[0], point[1]));
        //        }
        //        return csFactory.create(coords);
        return null;
    }

    public double getFlatness() {
        return flatness;
    }

    public void setFlatness(double flatness) {
        this.flatness = flatness;
    }
}