Subversion Repositories display

/*
 * Copyright (C) 2014 Steve Ratcliffe
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * 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.
 */
package test.svg;


import java.util.Formatter;
import java.util.List;

import uk.me.parabola.imgfmt.app.Coord;
import uk.me.parabola.imgfmt.app.trergn.Subdivision;

import org.dom4j.Element;
import test.display.CommonDisplay;
import test.elements.Line;

/**
 * Convert the road layer to svg.
 *
 * @author Steve Ratcliffe
 */
public class Roads extends CommonDisplay {
        private SvgDoc doc;
        private Element layer1;

        //private int citySize = 1;
        //private int zipSize = 1;

        protected void print() {
                openLbl();
                //if (lbl.getCities().size() > 255)
                //      citySize = 2;
                //if (lbl.getZips().size() > 255)
                //      zipSize = 2;

                openTre();

                openNet();
                openRgn();
                rgn.setNetFile(net);

                drawRoads();
        }

        /**
         * Fetch all the roads and call out to draw each one.
         */
        private void drawRoads() {
                Subdivision[] subdivisions = tre.subdivForLevel(0);

                for (Subdivision sub : subdivisions) {
                        List<Line> lines = rgn.linesForSubdiv(sub);

                        // Currently just getting all lines in range, rather than fetching the routable
                        // roads from net first.
                        for (Line line : lines) {
                                if (line.getType() < 12) {
                                        drawRoad(line);
                                }
                        }
                }
        }

        /**
         * Draw an individual road to the canvas.
         * @param line The line representing the road.
         */
        private void drawRoad(Line line) {
                List<Coord> coords = line.getCoords();

                Formatter fmt = new Formatter();
                for (int i = 0; i < coords.size(); i++) {
                        Coord c = coords.get(i);
                        XY co = doc.coord(c.getLatitude(), c.getLongitude());
                        if (i == 0) {
                                fmt.format("M %d %d", co.getXi(), co.getYi());
                        } else {
                                fmt.format(" L %d %d", co.getXi(), co.getYi());
                        }
                }

                String colour;
                switch (line.getType()) {
                case 1: colour = "blue"; break;
                case 2: colour = "green"; break;
                case 3: colour = "red"; break;
                default: colour = "black"; break;
                }
                layer1.addElement("path")
                                .addAttribute("stroke", colour)
                                .addAttribute("opacity", "0.3")
                                .addAttribute("fill", "none")
                                .addAttribute("d", fmt.toString());
        }

        public void run(SvgDoc doc, String name) {
                this.doc = doc;
                this.layer1 = doc.getRoads();

                this.setOutStream(System.err);
                this.display(name, "NOD");
        }
}