Application: gvSIG desktop

/* 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 org.gvsig.dwg.lib.objects;

import java.awt.geom.Point2D;

import java.util.List;

import java.util.Map;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.dwg.lib.DwgFile;

import org.gvsig.dwg.lib.DwgObject;

import org.gvsig.dwg.lib.IDwg2FMap;

import org.gvsig.dwg.lib.IDwg3DTestable;

import org.gvsig.dwg.lib.IDwgBlockMember;

import org.gvsig.dwg.lib.IDwgExtrusionable;

import org.gvsig.dwg.lib.util.AcadExtrusionCalculator;

import org.gvsig.dwg.lib.util.FMapUtil;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

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

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

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

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

/**

 * The DwgArc class represents a DWG Arc

 *

 * @author jmorell

 */

public class DwgArc extends DwgObject

        implements IDwgExtrusionable, IDwg3DTestable, IDwg2FMap, IDwgBlockMember {

    private static Logger logger = LoggerFactory.getLogger(DwgArc.class);

        private double[] center;

        private double radius;

        private double thickness;

        private double[] extrusion;

        private double initAngle;

        private double endAngle;

        public DwgArc(int index) {

                super(index);

        }

        /**

         * @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 radius.

         */

        public double getRadius() {

                return radius;

        }

        /**

         * @param radius The radius to set.

         */

        public void setRadius(double radius) {

                this.radius = radius;

        }

    /**

     * @return Returns the extrusion.

     */

    public double[] getExtrusion() {

        return extrusion;

    }

        /**

         * @return Returns the thickness.

         */

        public double getThickness() {

                return thickness;

        }

        /**

         * @param thickness The thickness to set.

         */

        public void setThickness(double thickness) {

                this.thickness = thickness;

        }

        /**

         * @param extrusion The extrusion to set.

         */

        public void setExtrusion(double[] extrusion) {

                this.extrusion = extrusion;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.jdwglib.dwg.IDwgExtrusionable#applyExtrussion()

         */

        public void applyExtrussion() {

                 double[] arcCenter = getCenter();

         double[] arcExt = getExtrusion();

         arcCenter = AcadExtrusionCalculator.

                         extrude2(arcCenter, arcExt);

         setCenter(arcCenter);

        }

        /* (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.IDwg2FMap#toFMapGeometry()

         */

        public Geometry toFMapGeometry(boolean is3DFile) throws CreateGeometryException {

                GeometryManager gMan = GeometryLocator.getGeometryManager();

                double[] center = getCenter();

                //FIXME: ¿qué hacer cuando llega un radio negativo?

                //        De momento, tomamos el valor absoluto del radio, pero

                //        ¿habría que modificar de alguna manera los angulos?

                double radius = Math.abs(getRadius());

                double angSt = getInitAngle();

                double angEnd = getEndAngle();

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

                Arc arc = (Arc) gMan.create(getGeometryType(),getGeometrySubType(is3DFile));

                Point point = (Point) gMan.create(Geometry.TYPES.POINT,getGeometrySubType(is3DFile));

                point.setCoordinates(center);

                try {

                    arc.setPoints(point, radius, angSt, -angExt);

                } catch (IllegalArgumentException ex) {

                    logger.info("Unable to create arc from points.");

                    arc = null;

                }

                return arc;

        }

        public String toString(){

                return "Arc";

        }

        /* (non-Javadoc)

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

         */

        public String toFMapString(boolean is3dFile) {

                if(is3dFile) {

                        return "FPolyline3D";

                } else {

                        return "FPolyline2D";

                }

        }

        /* (non-Javadoc)

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

         */

        public double getZ() {

                return getCenter()[2];

        }

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

                        List dwgObjectsWithoutBlocks, Map handleObjWithoutBlocks, DwgFile callBack) {

                //DwgArc transformedEntity = new DwgArc(getIndex());

                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 radius = this.getRadius();

                double transformedRadius = radius * scale[0];

                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);

                }

                DwgArc transformedEntity = (DwgArc) this.clone();

                transformedEntity.setCenter(transformedCenter);

                transformedEntity.setRadius(transformedRadius);

                transformedEntity.setInitAngle(transformedInitAngle);

                transformedEntity.setEndAngle(transformedEndAngle);

                transformedEntity.setHandle(this.getHandle());

                dwgObjectsWithoutBlocks.add(transformedEntity);

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

//                setCenter(transformedCenter);

//                setRadius(transformedRadius);

//                setInitAngle(transformedInitAngle);

//                setEndAngle(transformedEndAngle);

//                dwgObjectsWithoutBlocks.add(this);

        }

        /* (non-Javadoc)

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

         */

public Object clone(){

                DwgArc obj = new DwgArc(index);

                this.fill(obj);

                return obj;

        }

        protected void fill(DwgObject obj){

                super.fill(obj);

                DwgArc myObj = (DwgArc)obj;

                myObj.setCenter(center);

                myObj.setEndAngle(endAngle);

                myObj.setExtrusion(extrusion);

                myObj.setInitAngle(initAngle);

                myObj.setRadius(radius);

                myObj.setThickness(thickness);

        }

        public int getGeometryType() {

                return Geometry.TYPES.ARC;

        }

}