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.point;

import java.awt.Shape;

import java.awt.geom.AffineTransform;

import java.awt.geom.PathIterator;

import java.util.Arrays;

import org.cresques.cts.ICoordTrans;

import org.gvsig.fmap.geom.DirectPosition;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryException;

import org.gvsig.fmap.geom.aggregate.MultiLine;

import org.gvsig.fmap.geom.aggregate.MultiPolygon;

import org.gvsig.fmap.geom.exception.CreateGeometryException;

import org.gvsig.fmap.geom.exception.ReprojectionRuntimeException;

import org.gvsig.fmap.geom.handler.AbstractHandler;

import org.gvsig.fmap.geom.handler.FinalHandler;

import org.gvsig.fmap.geom.handler.Handler;

import org.gvsig.fmap.geom.jts.MCoordinate;

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

import org.gvsig.fmap.geom.jts.primitive.AbstractPrimitive;

import org.gvsig.fmap.geom.jts.primitive.Envelope2D;

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

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

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

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

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

/**

 * @author fdiaz

 *

 */

public abstract class AbstractPoint extends AbstractPrimitive implements PointJTS {

    /**

     *

     */

    private static final long serialVersionUID = -8378193151810866724L;

    protected com.vividsolutions.jts.geom.Coordinate coordinate;

    /**

    *

    */

    protected AbstractPoint(int subtype) {

        super(Geometry.TYPES.POINT, subtype);

    }

    /**

     *

     */

    public AbstractPoint(int subtype, com.vividsolutions.jts.geom.Coordinate coordinate) {

        this(subtype);

        this.coordinate = coordinate;

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public DirectPosition getDirectPosition() {

        return new PointDirectPosition();

    }

    class PointDirectPosition implements DirectPosition {

        /*

         * (non-Javadoc)

         *

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

         */

        public int getDimension() {

            return AbstractPoint.this.getDimension();

        }

        /*

         * (non-Javadoc)

         *

         * @see org.gvsig.fmap.geom.DirectPosition#getOrdinate(int)

         */

        public double getOrdinate(int dimension) {

            return AbstractPoint.this.getCoordinateAt(dimension);

        }

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public void setCoordinateAt(int dimension, double value) {

        this.coordinate.setOrdinate(dimension, value);

    }

    /*

     * (non-Javadoc)

     *

     * @see org.gvsig.fmap.geom.primitive.Point#setCoordinates(double[])

     */

    public void setCoordinates(double[] values) {

        for (int i = 0; i < values.length; i++) {

            this.coordinate.setOrdinate(i, values[i]);

        }

    }

  /*

     * (non-Javadoc)

     *

     * @see org.gvsig.fmap.geom.primitive.Point#setX(double)

     */

    public void setX(double x) {

        this.coordinate.x = x;

    }

    /*

     * (non-Javadoc)

     *

     * @see org.gvsig.fmap.geom.primitive.Point#setY(double)

     */

    public void setY(double y) {

        this.coordinate.y = y;

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public double getCoordinateAt(int dimension) {

        return this.coordinate.getOrdinate(dimension);

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public double[] getCoordinates() {

        double[] coords = new double[this.getDimension()];

        for (int i = 0; i < this.getDimension(); i++) {

            coords[i] = this.coordinate.getOrdinate(i);

        }

        return coords;

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public double getX() {

        return this.coordinate.x;

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public double getY() {

        return this.coordinate.y;

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public com.vividsolutions.jts.geom.Geometry getJTS() {

        return JTSUtils.createJTSPoint(this.coordinate);

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public void reProject(ICoordTrans ct) {

        if (ct == null) {

            return;

        }

        java.awt.geom.Point2D p = new java.awt.geom.Point2D.Double(this.getX(), this.getY());

        try {

            p = ct.convert(p, p);

            this.setX(p.getX());

            this.setY(p.getY());

        } catch (Exception exc) {

            /*

             * This can happen when the reprojection lib is unable

             * to reproject (for example the source point

             * is out of the valid range and some computing

             * problem happens)

             */

            this.setX(0);

            this.setY(0);

        }

    }

    /*

     * (non-Javadoc)

     *

     * @see

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

     */

    public void transform(AffineTransform at) {

        if (at == null) {

            return;

        }

        java.awt.geom.Point2D p = new java.awt.geom.Point2D.Double(this.getX(), this.getY());

        at.transform(p, p);

        setX(p.getX());

        setY(p.getY());

    }

    /*

     * (non-Javadoc)

     *

     * @see org.gvsig.fmap.geom.jts.primitive.point.PointJTS#getJTSCoordinates()

     */

    public com.vividsolutions.jts.geom.Coordinate getJTSCoordinate() {

        return this.coordinate;

    }

    /*

     * (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 new DefaultGeneralPathX(getPathIterator(null), false, 0);

    }

    /*

     * (non-Javadoc)

     *

     * @see

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

     * , double)

     */

    public PathIterator getPathIterator(AffineTransform at, double flatness) {

        return getPathIterator(at);

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public Handler[] getHandlers(int type) {

        return new Handler[] { new PointHandler() };

    }

    class PointHandler extends AbstractHandler implements FinalHandler {

        public PointHandler() {

            point = new java.awt.geom.Point2D.Double(AbstractPoint.this.getX(), AbstractPoint.this.getY());

            index = 0;

        }

        public void move(double movex, double movey) {

            AbstractPoint.this.setX(AbstractPoint.this.getX() + movex);

            AbstractPoint.this.setY(AbstractPoint.this.getY() + movey);

        }

        public void set(double setx, double sety) {

            AbstractPoint.this.setX(setx);

            AbstractPoint.this.setY(sety);

        }

    }

    public Envelope getEnvelope() {

        return new Envelope2D(this.getX(), this.getY(), this.getX(), this.getY());

    }

    /* (non-Javadoc)

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

     */

    public MultiLine toLines() throws GeometryException {

        String message = "Can't get lines from a point";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

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

     */

    public MultiPolygon toPolygons() throws GeometryException {

        String message = "Can't get polygons from a point";

        notifyDeprecated(message);

        throw new UnsupportedOperationException(message);

    }

    /* (non-Javadoc)

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

     */

    public void flip() throws GeometryOperationNotSupportedException, GeometryOperationException {

        //Do nothing

    }

    public abstract String toString();

    /* (non-Javadoc)

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

     */

    @Override

    public boolean canBeTransformed(AffineTransform at) {

        return true;

    }

    /* (non-Javadoc)

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

     */

    @Override

    public boolean canBeReprojected(ICoordTrans ct) {

        return true;

    }

    @Override

    public int hashCode() {

        double v[];

        if( this.coordinate instanceof MCoordinate ) {

            v = new double[] {

                coordinate.x,

                coordinate.y,

                coordinate.z,

                ((MCoordinate)coordinate).m

            };

        } else {

            v = new double[] {

                coordinate.x,

                coordinate.y,

                coordinate.z,

                Double.NaN

            };

        }

        return Arrays.hashCode(v);

    }

    @Override

    public org.gvsig.fmap.geom.primitive.Point centroid() throws GeometryOperationNotSupportedException,

        GeometryOperationException {

        return (Point) this.cloneGeometry();

    }    

}