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/* jdwglib. Java Library for reading Dwg files.

 *

 * Author: Jose Morell Rama (jose.morell@gmail.com).

 * Port from the Pythoncad Dwg library by Art Haas.

 *

 * Copyright (C) 2005 Jose Morell, IVER TI S.A. and Generalitat Valenciana

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 * Jose Morell (jose.morell@gmail.com)

 *

 * or

 *

 * IVER TI S.A.

 *  C/Salamanca, 50

 *  46005 Valencia

 *  Spain

 *  +34 963163400

 *  dac@iver.es

 */

package com.iver.cit.jdwglib.dwg.objects;

import java.awt.geom.Point2D;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryFactory;

import org.gvsig.fmap.geom.GeometryManager;

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

import com.iver.cit.jdwglib.dwg.DwgFile;

import com.iver.cit.jdwglib.dwg.DwgObject;

import com.iver.cit.jdwglib.dwg.IDwg2FMap;

import com.iver.cit.jdwglib.dwg.IDwg3DTestable;

import com.iver.cit.jdwglib.dwg.IDwgBlockMember;

import com.iver.cit.jdwglib.util.FMapUtil;

import com.iver.cit.jdwglib.util.GisModelCurveCalculator;

/**

 * The DwgEllipse class represents a DWG Ellipse

 *

 * @author jmorell

 */

public class DwgEllipse extends DwgObject

        implements IDwg3DTestable, IDwg2FMap, IDwgBlockMember{

        public DwgEllipse(int index) {

                super(index);

                // TODO Auto-generated constructor stub

        }

        private double[] center;

        private double[] majorAxisVector;

        private double[] extrusion;

        private double axisRatio;

        private double initAngle;

        private double endAngle;

    /**

     * @return Returns the axisRatio.

     */

    public double getAxisRatio() {

        return axisRatio;

    }

    /**

     * @param axisRatio The axisRatio to set.

     */

    public void setAxisRatio(double axisRatio) {

        this.axisRatio = axisRatio;

    }

    /**

     * @return Returns the center.

     */

    public double[] getCenter() {

        return center;

    }

    /**

     * @param center The center to set.

     */

    public void setCenter(double[] center) {

        this.center = center;

    }

    /**

     * @return Returns the endAngle.

     */

    public double getEndAngle() {

        return endAngle;

    }

    /**

     * @param endAngle The endAngle to set.

     */

    public void setEndAngle(double endAngle) {

        this.endAngle = endAngle;

    }

    /**

     * @return Returns the initAngle.

     */

    public double getInitAngle() {

        return initAngle;

    }

    /**

     * @param initAngle The initAngle to set.

     */

    public void setInitAngle(double initAngle) {

        this.initAngle = initAngle;

    }

    /**

     * @return Returns the majorAxisVector.

     */

    public double[] getMajorAxisVector() {

        return majorAxisVector;

    }

    /**

     * @param majorAxisVector The majorAxisVector to set.

     */

    public void setMajorAxisVector(double[] majorAxisVector) {

        this.majorAxisVector = majorAxisVector;

    }

    /**

     * @return Returns the extrusion.

     */

    public double[] getExtrusion() {

        return extrusion;

    }

        /**

         * @param extrusion The extrusion to set.

         */

        public void setExtrusion(double[] extrusion) {

                this.extrusion = extrusion;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.jdwglib.dwg.IDwg3DTestable#has3DData()

         */

        public boolean has3DData() {

                return (getCenter()[2] !=0.0);

        }

        /* (non-Javadoc)

         * @see com.iver.cit.jdwglib.dwg.IDwg3DTestable#getZ()

         */

        public double getZ() {

                return getCenter()[2];

        }

        /* (non-Javadoc)

         * @see com.iver.cit.jdwglib.dwg.IDwg2FMap#toFMapGeometry(boolean)

         */

        public Geometry toFMapGeometry(boolean is3DFile) {

                GeometryFactory gFactory = GeometryManager.getInstance().getGeometryFactory();

                double[] c = getCenter();

                Point2D center = new Point2D.Double(c[0], c[1]);

                double[] majorAxisVector = getMajorAxisVector();

                Point2D mav = new Point2D.Double(majorAxisVector[0],

                                majorAxisVector[1]);

                double axisRatio = getAxisRatio();

                double angSt = getInitAngle();

                double angEnd = getEndAngle();

                double angExt = UtilFunctions.angleDistance(angSt, angEnd);

//                List arc = GisModelCurveCalculator

//                .calculateGisModelEllipse(center, mav, axisRatio,

//                initAngle, endAngle);

                Point2D axis1Start = new Point2D.Double(center.getX()+mav.getX(), center.getY()+mav.getY());

                Point2D axis1End = new Point2D.Double(center.getX()-mav.getX(), center.getY()-mav.getY());

                double majorAxisLength = axis1Start.distance(axis1End);

                double axis2Length = majorAxisLength * axisRatio;

                if (is3DFile) {

                        return gFactory.createEllipticArc2DZ(axis1Start, axis1End, axis2Length/2, angSt, angExt, c[2]);

                } else {

                        return gFactory.createEllipticArc2D(axis1Start, axis1End, axis2Length/2, angSt, angExt);

                }

        }

        /* (non-Javadoc)

         * @see com.iver.cit.jdwglib.dwg.IDwg2FMap#toFMapString(boolean)

         */

        public String toFMapString(boolean is3DFile) {

                if(is3DFile)

                        return "EllipticArc2DZ";

                else

                        return "EllipticArc2D";

        }

        public String toString(){

                return "Ellipse";

        }

        public void transform2Block(double[] bPoint, Point2D insPoint,

                        double[] scale, double rot,

                        List dwgObjectsWithoutBlocks,

                        Map handleObjWithoutBlocks,

                        DwgFile callBack) {

                DwgEllipse transformedEntity = null;

                double[] center = this.getCenter();

                Point2D pointAux = new Point2D.Double(center[0] - bPoint[0], center[1] - bPoint[1]);

                double laX = insPoint.getX() + ((pointAux.getX()*scale[0])*Math.cos(rot) + (pointAux.getY()*scale[1])*(-1)*Math.sin(rot));

                double laY = insPoint.getY() + ((pointAux.getX()*scale[0])*Math.sin(rot) + (pointAux.getY()*scale[1])*Math.cos(rot));

                double laZ = center[2] * scale[2];

                double[] transformedCenter = new double[]{laX, laY, laZ};

                double[] majorAxisVector = this.getMajorAxisVector();

                double[] transformedMajorAxisVector = new double[]{majorAxisVector[0] * scale[0], majorAxisVector[1] * scale[1], majorAxisVector[2] * scale[2]};

                //TODO: Rotar un �ngulo rot el vector majorAxisVector fijado en

                // center.

                double axisRatio = this.getAxisRatio();

                double transformedAxisRatio = axisRatio;

                double initAngle = this.getInitAngle();

                double endAngle = this.getEndAngle();

        double transformedInitAngle = initAngle + rot;

        if (transformedInitAngle<0) {

            transformedInitAngle = transformedInitAngle + (2*Math.PI);

        } else if (transformedInitAngle>(2*Math.PI)) {

            transformedInitAngle = transformedInitAngle - (2*Math.PI);

        }

        double transformedEndAngle = endAngle + rot;

        if (transformedEndAngle<0) {

            transformedEndAngle = transformedEndAngle + (2*Math.PI);

        } else if (transformedEndAngle>(2*Math.PI)) {

            transformedEndAngle = transformedEndAngle - (2*Math.PI);

        }

                transformedEntity = (DwgEllipse)this.clone();

                transformedEntity.setCenter(transformedCenter);

                transformedEntity.setMajorAxisVector(transformedMajorAxisVector);

                transformedEntity.setAxisRatio(transformedAxisRatio);

                transformedEntity.setInitAngle(transformedInitAngle);

                transformedEntity.setEndAngle(transformedEndAngle);

                dwgObjectsWithoutBlocks.add(transformedEntity);

                handleObjWithoutBlocks.put(new Integer(transformedEntity.getHandle().getOffset()), transformedEntity);

//                dwgObjectsWithoutBlocks.add(this);

        }

        /* (non-Javadoc)

         * @see java.lang.Object#clone()

         */

        public Object clone(){

                DwgEllipse obj = new DwgEllipse(index);

                this.fill(obj);

                return obj;

        }

        protected void fill(DwgObject obj){

                super.fill(obj);

                DwgEllipse myObj = (DwgEllipse)obj;

                myObj.setAxisRatio(axisRatio);

                myObj.setCenter(center);

                myObj.setEndAngle(endAngle);

                myObj.setExtrusion(extrusion);

                myObj.setInitAngle(initAngle);

                myObj.setMajorAxisVector(majorAxisVector);

        }

}