Application: gvSIG desktop

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2015 gvSIG Association

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.geom.jts.primitive.surface.ellipse;

import java.awt.Shape;

import java.awt.geom.AffineTransform;

import java.awt.geom.PathIterator;

import org.cresques.cts.CoordTransRuntimeException;

import org.cresques.cts.ICoordTrans;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.jts.gputils.DefaultGeneralPathX;

import org.gvsig.fmap.geom.jts.primitive.point.Point2D;

import org.gvsig.fmap.geom.jts.primitive.point.PointJTS;

import org.gvsig.fmap.geom.jts.primitive.surface.AbstractSurface;

import org.gvsig.fmap.geom.jts.util.JTSUtils;

import org.gvsig.fmap.geom.jts.util.UtilFunctions;

import org.gvsig.fmap.geom.operation.GeometryOperationException;

import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;

import org.gvsig.fmap.geom.primitive.Ellipse;

import org.gvsig.fmap.geom.primitive.GeneralPathX;

import org.gvsig.fmap.geom.primitive.Line;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.fmap.geom.primitive.Polygon;

import org.gvsig.fmap.geom.primitive.Ring;

import org.gvsig.tools.exception.BaseException;

/**

 * @author fdiaz

 *

 */

public abstract class AbstractEllipse extends AbstractSurface {

    /**

     *

     */

    private static final long serialVersionUID = -4218931408628745830L;

    protected Point init;

    protected Point end;

    protected double ydist;

    /**

     * @param type

     * @param subtype

     */

    protected AbstractEllipse(int type, int subtype) {

        super(type, subtype);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Surface#getNumInteriorRings()

     */

    public int getNumInteriorRings() {

        String message = "Calling deprecated method getInteriorRing of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Surface#getInteriorRing(int)

     */

    public Ring getInteriorRing(int index) {

        String message = "Calling deprecated method getInteriorRing of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Surface#addInteriorRing(org.gvsig.fmap.geom.primitive.Ring)

     */

    public void addInteriorRing(Ring ring) {

        String message = "Calling unsupported method addInteriorRing of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Surface#addInteriorRing(org.gvsig.fmap.geom.primitive.Line)

     */

    public void addInteriorRing(Line ring) {

        String message = "Calling unsupported method addInteriorRing of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Surface#addInteriorRing(org.gvsig.fmap.geom.primitive.Polygon)

     */

    public void addInteriorRing(Polygon polygon) {

        String message = "Calling unsupported method addInteriorRing of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Surface#removeInteriorRing(int)

     */

    public void removeInteriorRing(int index) {

        String message = "Calling unsupported method removeInteriorRing of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getCoordinateAt(int, int)

     */

    public double getCoordinateAt(int index, int dimension) {

        String message = "Calling deprecated method getCoordinateAt of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setCoordinateAt(int, int, double)

     */

    public void setCoordinateAt(int index, int dimension, double value) {

        String message = "Calling deprecated method setCoordinateAt of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(org.gvsig.fmap.geom.primitive.Point)

     */

    public void addVertex(Point point) {

        String message = "Calling deprecated method addVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double)

     */

    public void addVertex(double x, double y) {

        String message = "Calling deprecated method addVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double, double)

     */

    public void addVertex(double x, double y, double z) {

        String message = "Calling deprecated method addVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#removeVertex(int)

     */

    public void removeVertex(int index) {

        String message = "Calling deprecated method removeVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getVertex(int)

     */

    public Point getVertex(int index) {

        String message = "Calling deprecated method getVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getNumVertices()

     */

    public int getNumVertices() {

        String message = "Calling deprecated method getNumVertices of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#insertVertex(int, org.gvsig.fmap.geom.primitive.Point)

     */

    public void insertVertex(int index, Point p) {

        String message = "Calling deprecated method insertVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setVertex(int, org.gvsig.fmap.geom.primitive.Point)

     */

    public void setVertex(int index, Point p) {

        String message = "Calling deprecated method setVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setGeneralPath(org.gvsig.fmap.geom.primitive.GeneralPathX)

     */

    public void setGeneralPath(GeneralPathX generalPathX) {

        String message = "Calling deprecated method setGeneralPath of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addMoveToVertex(org.gvsig.fmap.geom.primitive.Point)

     */

    public void addMoveToVertex(Point point) {

        String message = "Calling deprecated method addMoveToVertex of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#closePrimitive()

     */

    public void closePrimitive() {

        String message = "Calling deprecated method closePrimitive of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#ensureCapacity(int)

     */

    public void ensureCapacity(int capacity) {

        String message = "Calling deprecated method ensureCapacity of a ellipse";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#reProject(org.cresques.cts.ICoordTrans)

     */

    public void reProject(ICoordTrans ct) {

        // FIXME: Esto solo ser?a correcto para transformaciones de traslaci?n,

        // rotaci?n y escala

        // Ser?a incorrecto para las de deformaci?n en cizallamiento

        Point2D aux = new Point2D(JTSUtils.getPointAtYAxisInEllipse(init, end, ydist));

        try {

            init.reProject(ct);

            end.reProject(ct);

            aux.reProject(ct);

        } catch (CoordTransRuntimeException e) {

            //Si no se ha podido reproyectar alguno de los puntos, les asignamos 0 a todas las coordenadas

            init.setX(0);

            init.setY(0);

            end.setX(0);

            end.setY(0);

            ydist = 0;

        }

        try {

            Point2D transformedMiddlePoint = new Point2D(JTSUtils.getMidPoint(init, end));

            ydist = transformedMiddlePoint.distance(aux);

        } catch (BaseException e) {

            throw new UnsupportedOperationException("Error calculating the radius of the transformed circle.", e);

        }

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#transform(java.awt.geom.AffineTransform)

     */

    public void transform(AffineTransform at) {

        //FIXME: Esto solo ser?a correcto para transformaciones de traslaci?n, rotaci?n y escala

        // Ser?a incorrecto para las de deformaci?n en cizallamiento

        Point2D aux = new Point2D(JTSUtils.getPointAtYAxisInEllipse(init, end, ydist));

        init.transform(at);

        end.transform(at);

        aux.transform(at);

        try {

            Point2D transformedMiddlePoint = new Point2D(JTSUtils.getMidPoint(init, end));

            ydist = transformedMiddlePoint.distance(aux);

        } catch (BaseException e) {

            throw new UnsupportedOperationException("Error calculating the minor semi-axis of the transformed ellipse.", e);

        }

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#getDimension()

     */

    public int getDimension() {

        return init.getDimension();

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#getShape(java.awt.geom.AffineTransform)

     */

    public Shape getShape(AffineTransform affineTransform) {

        return new DefaultGeneralPathX(getPathIterator(affineTransform),false,0);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#getShape()

     */

    public Shape getShape() {

        return getShape(null);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform)

     */

    public PathIterator getPathIterator(AffineTransform at) {

        return getPathIterator(at, getManager().getFlatness());

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform, double)

     */

    public PathIterator getPathIterator(AffineTransform at, double flatness) {

        java.awt.geom.Point2D.Double p1 = new java.awt.geom.Point2D.Double(init.getX(), init.getY());

        java.awt.geom.Point2D.Double p2 = new java.awt.geom.Point2D.Double(end.getX(), end.getY());

        java.awt.Shape ellipse = UtilFunctions.createEllipse(p1, p2, ydist);

        return ellipse.getPathIterator(at, flatness);

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.Geometry#getGeneralPath()

     */

    public GeneralPathX getGeneralPath() {

        GeneralPathX gp = new DefaultGeneralPathX(getPathIterator(null, getManager().getFlatness()), is3D(), 0.0);

         return gp;

     }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.jts.GeometryJTS#is3D()

     */

    public boolean is3D() {

        return ((PointJTS)init).is3D();

    }

    /**

     * @param initialPoint

     * @return

     */

    protected abstract Point fixPoint(Point point);

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, double)

     */

    public void setPoints(Point axis1Start, Point axis1End, double axis2Length) {

        init = fixPoint(axis1Start);

        end = fixPoint(axis1End);

        ydist = axis2Length;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getAxis1Start()

     */

    public Point getAxis1Start() {

        return init;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getAxis1End()

     */

    public Point getAxis1End() {

        return end;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.primitive.Ellipse#getAxis2Dist()

     */

    public double getAxis2Dist() {

        return ydist;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.geom.jts.GeometryJTS#flip()

     */

    public void flip() throws GeometryOperationNotSupportedException, GeometryOperationException {

        //FIXME: throw UnssupportedOperationException or do nothing?

//        String message = "Can't flip a ellipse";

//        notifyDeprecated(message);

//        throw new UnsupportedOperationException(message);

    }

    protected double getAxis1Angle() throws GeometryOperationNotSupportedException, GeometryOperationException {

        double angle = Math.acos((end.getX() - init.getX()) / init.distance(end));

        if (init.getY() > end.getY()) {

            angle = -angle;

        }

        if (angle < 0) {

            angle += (2 * Math.PI);

        }

        return angle;

    }

}