Application: gvSIG desktop

/*

 * Created on 04-may-2004

 */

package org.cresques.px.dxf;

import java.awt.geom.Point2D;

import org.cresques.geo.Point3D;

import org.cresques.geo.Projected;

import org.cresques.geo.Projection;

import org.cresques.geo.ReProjection;

import org.cresques.io.DxfFile;

import org.cresques.io.DxfGroup;

import org.cresques.io.DxfGroupVector;

import org.cresques.px.Extent;

import org.cresques.px.PxObj;

/**

 * Contructor de objetos Dxf 

 * 

 * @author "Luis W. Sevilla" <sevilla_lui@gva.es>

 */

public class DxfEntityMaker implements DxfFile.EntityFactory, Projected {

        Projection proj = null;

        DxfEntity lastEntity = null;

        DxfEntityList entities = null;

        DxfTable layers = null;

    double xtruX=0.0, xtruY=0.0, xtruZ=1.0;

    //double x=Double.NaN, y=Double.NaN, z=Double.NaN;

    int polylineFlag = 0;

    Point2D firstPt = new Point2D.Double();

        public DxfEntityMaker (Projection proj) {

                this.proj = proj;

                layers = new DxfTable();

                entities = new DxfEntityList(proj);

        }

        public PxObj getObjects() { return entities; }

        public Extent getExtent() { return entities.getExtent(); }

        public void createLayer(DxfGroupVector grp) throws Exception {

                DxfLayer layer = new DxfLayer(grp.getDataAsString(2), grp.getDataAsInt(62));

                layer.lType = grp.getDataAsString(6);

                layer.setFlags(grp.getDataAsInt(70));

                layers.add(layer);

        }

        public void createPolyline(DxfGroupVector grp) throws Exception {

                DxfLayer layer = (DxfLayer) layers.getByName(grp.getDataAsString(8));

                DxfPolyline entity = new DxfPolyline(proj, layer);

                /*if (grp.hasCode(10))

                        x = grp.getDataAsDouble(10);

                if (grp.hasCode(20))

                        y = grp.getDataAsDouble(20);

                if (grp.hasCode(30))

                        z = grp.getDataAsDouble(30);*/

                if (grp.hasCode(62))

                        entity.dxfColor = grp.getDataAsInt(62);

                if (grp.hasCode(70))

                        entity.flags = grp.getDataAsInt(70);

                if (grp.hasCode(210))

                        xtruX = grp.getDataAsDouble(210);

                if (grp.hasCode(220))

                        xtruY = grp.getDataAsDouble(220);

                if (grp.hasCode(230))

                        xtruZ = grp.getDataAsDouble(230);

                // compruebo flags

                if ((entity.flags & 0x01) == 0x01) {

                        entity.closed = true;

                }

                lastEntity = entity;

        }

        public void endSeq() throws Exception {

                entities.add(lastEntity);

                lastEntity = null;

                xtruX = 0.0;

                xtruY = 0.0;

                xtruZ = 1.0;

        }

        public void addVertex(DxfGroupVector grp) throws Exception {

                double x = 0.0, y = 0.0, z = 0.0;

                x  = grp.getDataAsDouble(10);

                y  = grp.getDataAsDouble(20);

                if (grp.hasCode(30)) z = grp.getDataAsDouble(30);

                Point3D point_in = new Point3D(x, y, z);

                Point3D xtru = new Point3D(xtruX, xtruY, xtruZ);

                Point2D point_out = DxfCalXtru.CalculateXtru(point_in, xtru);

                x = point_out.getX();

                y = point_out.getY();

                //System.out.println(x+","+y);

                Point2D pt = proj.createPoint( x, y);

                ((DxfPolyline) lastEntity).add(pt);

                if (((DxfPolyline)lastEntity).pts.size() == 1) {

                        firstPt = pt;

                }

        }

        public void createLwPolyline(DxfGroupVector grp) throws Exception {

                double x = 0.0, y = 0.0, elev=0.0;

                DxfGroup g = null;

                if (grp.hasCode(38))

                        elev = grp.getDataAsDouble(38);

                DxfLayer layer = (DxfLayer) layers.getByName(grp.getDataAsString(8));

                DxfLwPolyline entity = new DxfLwPolyline(proj, layer);

                for (int i=0; i<grp.size(); i++) {

                        g = (DxfGroup) grp.get(i);

                        if (g.getCode() == 10)

                                x = ((Float) g.getData()).doubleValue();

                        else if (g.getCode() == 20) {

                                y = ((Float) g.getData()).doubleValue();

                                //if (y <= 1.0) throw new Exception("Y == "+y);

                                entity.add( proj.createPoint( x, y ) );

                                x = 0.0; y = 0.0;

                        }

                }

                if (grp.hasCode(62))

                        entity.dxfColor = grp.getDataAsInt(62);

                if (grp.hasCode(70))

                        entity.flags = grp.getDataAsInt(70);

                entities.add(entity);

        }

        public void createLine(DxfGroupVector grp) throws Exception {

                double x = 0.0, y = 0.0;

                DxfGroup g = null;

                Point2D pt1 = null, pt2 = null;

                DxfLayer layer = (DxfLayer) layers.getByName(grp.getDataAsString(8));

                x = grp.getDataAsDouble(10);

                y = grp.getDataAsDouble(20);

                pt1 = proj.createPoint(x, y);

                x = grp.getDataAsDouble(11);

                y = grp.getDataAsDouble(21);

                pt2 = proj.createPoint(x, y);

                DxfLine entity = new DxfLine(proj, layer, pt1, pt2);

                if (grp.hasCode(62))

                        entity.dxfColor = grp.getDataAsInt(62);

                entities.add(entity);

        }

        public void createText(DxfGroupVector grp) throws Exception {

                double x = 0.0, y = 0.0, h= 0.0, rot= 0.0;

                DxfGroup g = null;

                Point2D pt1 = null, pt2 = null;

                String txt = null;

                DxfLayer layer = (DxfLayer) layers.getByName(grp.getDataAsString(8));

                txt = grp.getDataAsString(1);

                DxfText entity = new DxfText(proj, layer, txt);

                entity.h = grp.getDataAsDouble(40);

                x = grp.getDataAsDouble(10);

                y = grp.getDataAsDouble(20);

                entity.setPt1(proj.createPoint(x, y));

                if (grp.hasCode(11)) {

                        x = grp.getDataAsDouble(11);

                        y = grp.getDataAsDouble(21);

                        entity.setPt2(proj.createPoint(x, y));

                }

                if (grp.hasCode(50))

                        entity.rot = grp.getDataAsDouble(50);

                if (grp.hasCode(62))

                        entity.dxfColor = grp.getDataAsInt(62);

                if (grp.hasCode(72))

                        entity.align = grp.getDataAsInt(72);

                entities.add(entity);

        }

        public void createSolid(DxfGroupVector grp) throws Exception {

                DxfLayer layer = (DxfLayer) layers.getByName(grp.getDataAsString(8));

        }

        public Projection getProjection() { return proj;}

        /**

         * Cambia de proyeccion.

         * 

         * @param rp

         */

        public void reProject(ReProjection rp) {

                entities.reProject(rp);

        }

        public DxfEntityList getEntities() { return entities;}

        public DxfTable getLayers() { return layers;}

}