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svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / primitive / surface / ellipse / AbstractEllipse.java @ 44612

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/* gvSIG. Desktop Geographic Information System.
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 *
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 * Copyright ? 2007-2015 gvSIG Association
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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 * MA  02110-1301, USA.
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 *
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 * For any additional information, do not hesitate to contact us
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 * at info AT gvsig.com, or visit our website www.gvsig.com.
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 */
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package org.gvsig.fmap.geom.jts.primitive.surface.ellipse;
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import java.awt.Shape;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.PathIterator;
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import org.cresques.cts.CoordTransRuntimeException;
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import org.cresques.cts.ICoordTrans;
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import org.gvsig.fmap.geom.Geometry;
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import org.gvsig.fmap.geom.jts.gputils.DefaultGeneralPathX;
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import org.gvsig.fmap.geom.jts.primitive.point.Point2D;
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import org.gvsig.fmap.geom.jts.primitive.point.PointJTS;
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import org.gvsig.fmap.geom.jts.primitive.surface.AbstractSurface;
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import org.gvsig.fmap.geom.jts.util.JTSUtils;
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import org.gvsig.fmap.geom.jts.util.UtilFunctions;
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import org.gvsig.fmap.geom.operation.GeometryOperationException;
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;
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import org.gvsig.fmap.geom.primitive.GeneralPathX;
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import org.gvsig.fmap.geom.primitive.Line;
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import org.gvsig.fmap.geom.primitive.Point;
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import org.gvsig.fmap.geom.primitive.Polygon;
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import org.gvsig.fmap.geom.primitive.Ring;
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import org.gvsig.tools.exception.BaseException;
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/**
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 * @author fdiaz
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 *
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 */
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public abstract class AbstractEllipse extends AbstractSurface {
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    /**
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     *
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     */
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    private static final long serialVersionUID = -4218931408628745830L;
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    protected Point init;
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    protected Point end;
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    protected double ydist;
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    /**
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     * @param type
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     * @param subtype
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     */
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    protected AbstractEllipse(int type, int subtype) {
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        super(type, subtype);
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    }
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    @Override
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    public Geometry force2D() throws GeometryOperationNotSupportedException, GeometryOperationException {
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        Ellipse2D other = new Ellipse2D();
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        other.setPoints((Point)init.force2D(), (Point)end.force2D(), ydist);
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        other.setProjection(this.getProjection());
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        return other;
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Surface#getNumInteriorRings()
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     */
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    public int getNumInteriorRings() {
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        String message = "Calling deprecated method getInteriorRing of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Surface#getInteriorRing(int)
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     */
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    public Ring getInteriorRing(int index) {
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        String message = "Calling deprecated method getInteriorRing of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Surface#addInteriorRing(org.gvsig.fmap.geom.primitive.Ring)
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     */
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    public void addInteriorRing(Ring ring) {
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        String message = "Calling unsupported method addInteriorRing of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Surface#addInteriorRing(org.gvsig.fmap.geom.primitive.Line)
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     */
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    public void addInteriorRing(Line ring) {
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        String message = "Calling unsupported method addInteriorRing of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Surface#addInteriorRing(org.gvsig.fmap.geom.primitive.Polygon)
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     */
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    public void addInteriorRing(Polygon polygon) {
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        String message = "Calling unsupported method addInteriorRing of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Surface#removeInteriorRing(int)
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     */
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    public void removeInteriorRing(int index) {
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        String message = "Calling unsupported method removeInteriorRing of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getCoordinateAt(int, int)
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     */
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    public double getCoordinateAt(int index, int dimension) {
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        String message = "Calling deprecated method getCoordinateAt of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setCoordinateAt(int, int, double)
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     */
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    public void setCoordinateAt(int index, int dimension, double value) {
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        String message = "Calling deprecated method setCoordinateAt of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(org.gvsig.fmap.geom.primitive.Point)
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     */
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    public void addVertex(Point point) {
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        String message = "Calling deprecated method addVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double)
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     */
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    public void addVertex(double x, double y) {
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        String message = "Calling deprecated method addVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double, double)
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     */
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    public void addVertex(double x, double y, double z) {
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        String message = "Calling deprecated method addVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#removeVertex(int)
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     */
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    public void removeVertex(int index) {
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        String message = "Calling deprecated method removeVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getVertex(int)
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     */
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    public Point getVertex(int index) {
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        String message = "Calling deprecated method getVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getNumVertices()
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     */
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    public int getNumVertices() {
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        String message = "Calling deprecated method getNumVertices of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#insertVertex(int, org.gvsig.fmap.geom.primitive.Point)
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     */
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    public void insertVertex(int index, Point p) {
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        String message = "Calling deprecated method insertVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setVertex(int, org.gvsig.fmap.geom.primitive.Point)
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     */
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    public void setVertex(int index, Point p) {
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        String message = "Calling deprecated method setVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setGeneralPath(org.gvsig.fmap.geom.primitive.GeneralPathX)
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     */
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    public void setGeneralPath(GeneralPathX generalPathX) {
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        String message = "Calling deprecated method setGeneralPath of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addMoveToVertex(org.gvsig.fmap.geom.primitive.Point)
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     */
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    public void addMoveToVertex(Point point) {
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        String message = "Calling deprecated method addMoveToVertex of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#closePrimitive()
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     */
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    public void closePrimitive() {
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        String message = "Calling deprecated method closePrimitive of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#ensureCapacity(int)
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     */
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    public void ensureCapacity(int capacity) {
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        String message = "Calling deprecated method ensureCapacity of a ellipse";
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        notifyDeprecated(message);
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        throw new UnsupportedOperationException(message);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#reProject(org.cresques.cts.ICoordTrans)
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     */
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    public void reProject(ICoordTrans ct) {
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        // FIXME: Esto solo ser?a correcto para transformaciones de traslaci?n,
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        // rotaci?n y escala
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        // Ser?a incorrecto para las de deformaci?n en cizallamiento
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        Point2D aux = new Point2D(this.getProjection(), JTSUtils.getPointAtYAxisInEllipse(init, end, ydist));
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        try {
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            init.reProject(ct);
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            end.reProject(ct);
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            aux.reProject(ct);
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            this.setProjection(ct.getPDest());
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        } catch (CoordTransRuntimeException e) {
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            //Si no se ha podido reproyectar alguno de los puntos, les asignamos 0 a todas las coordenadas
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            init.setX(0);
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            init.setY(0);
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            end.setX(0);
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            end.setY(0);
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            ydist = 0;
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        }
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        try {
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            Point2D transformedMiddlePoint = new Point2D(this.getProjection(), JTSUtils.getMidPoint(init, end));
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            ydist = transformedMiddlePoint.distance(aux);
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        } catch (BaseException e) {
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            throw new UnsupportedOperationException("Error calculating the radius of the transformed circle.", e);
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        }
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#transform(java.awt.geom.AffineTransform)
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     */
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    public void transform(AffineTransform at) {
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        //FIXME: Esto solo ser?a correcto para transformaciones de traslaci?n, rotaci?n y escala
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        // Ser?a incorrecto para las de deformaci?n en cizallamiento
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        Point2D aux = new Point2D(this.getProjection(), JTSUtils.getPointAtYAxisInEllipse(init, end, ydist));
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        init.transform(at);
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        end.transform(at);
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        aux.transform(at);
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        try {
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            Point2D transformedMiddlePoint = new Point2D(this.getProjection(), JTSUtils.getMidPoint(init, end));
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            ydist = transformedMiddlePoint.distance(aux);
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        } catch (BaseException e) {
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            throw new UnsupportedOperationException("Error calculating the minor semi-axis of the transformed ellipse.", e);
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        }
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#getDimension()
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     */
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    public int getDimension() {
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        return init.getDimension();
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#getShape(java.awt.geom.AffineTransform)
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     */
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    public Shape getShape(AffineTransform affineTransform) {
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        return new DefaultGeneralPathX(getPathIterator(affineTransform),false,0);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#getShape()
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     */
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    public Shape getShape() {
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        return getShape(null);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform)
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     */
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    public PathIterator getPathIterator(AffineTransform at) {
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        return getPathIterator(at, getManager().getFlatness());
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform, double)
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     */
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    public PathIterator getPathIterator(AffineTransform at, double flatness) {
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        java.awt.geom.Point2D.Double p1 = new java.awt.geom.Point2D.Double(init.getX(), init.getY());
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        java.awt.geom.Point2D.Double p2 = new java.awt.geom.Point2D.Double(end.getX(), end.getY());
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        java.awt.Shape ellipse = UtilFunctions.createEllipse(p1, p2, ydist);
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        return ellipse.getPathIterator(at, flatness);
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.Geometry#getGeneralPath()
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     */
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    public GeneralPathX getGeneralPath() {
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        GeneralPathX gp = new DefaultGeneralPathX(getPathIterator(null, getManager().getFlatness()), is3D(), 0.0);
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         return gp;
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     }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.jts.GeometryJTS#is3D()
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     */
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    public boolean is3D() {
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        return ((PointJTS)init).is3D();
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    }
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    /**
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     * @param initialPoint
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     * @return
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     */
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    protected abstract Point fixPoint(Point point);
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Ellipse#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, double)
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     */
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    public void setPoints(Point axis1Start, Point axis1End, double axis2Length) {
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        init = fixPoint(axis1Start);
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        end = fixPoint(axis1End);
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        ydist = axis2Length;
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Ellipse#getAxis1Start()
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     */
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    public Point getAxis1Start() {
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        return init;
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Ellipse#getAxis1End()
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     */
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    public Point getAxis1End() {
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        return end;
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.primitive.Ellipse#getAxis2Dist()
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     */
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    public double getAxis2Dist() {
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        return ydist;
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    }
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    /* (non-Javadoc)
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     * @see org.gvsig.fmap.geom.jts.GeometryJTS#flip()
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     */
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    public void flip() throws GeometryOperationNotSupportedException, GeometryOperationException {
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        //FIXME: throw UnssupportedOperationException or do nothing?
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//        String message = "Can't flip a ellipse";
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//        notifyDeprecated(message);
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//        throw new UnsupportedOperationException(message);
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    }
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    protected double getAxis1Angle() throws GeometryOperationNotSupportedException, GeometryOperationException {
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        double angle = Math.acos((end.getX() - init.getX()) / init.distance(end));
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        if (init.getY() > end.getY()) {
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            angle = -angle;
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        }
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        if (angle < 0) {
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            angle += (2 * Math.PI);
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        }
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        return angle;
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    }
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    @Override
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    public boolean canBeTransformed(AffineTransform at) {
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        return false;
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    }
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    @Override
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    public boolean canBeReprojected(ICoordTrans ct) {
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        return false;
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    }
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}