org.optaplanner.examples.tsp.persistence.SvgTspLineAndCircleExporter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of optaplanner-examples Show documentation

OptaPlanner solves planning problems. This lightweight, embeddable planning engine implements powerful and scalable algorithms to optimize business resource scheduling and planning. This module contains the examples which demonstrate how to use it in a normal Java application.

There is a newer version: 9.44.0.Final

Show newest version

package org.optaplanner.examples.tsp.persistence;

import java.io.IOException;

import org.optaplanner.examples.common.persistence.AbstractTxtSolutionExporter;
import org.optaplanner.examples.common.persistence.SolutionConverter;
import org.optaplanner.examples.tsp.app.TspApp;
import org.optaplanner.examples.tsp.domain.Standstill;
import org.optaplanner.examples.tsp.domain.TspSolution;
import org.optaplanner.examples.tsp.domain.location.Location;

public class SvgTspLineAndCircleExporter extends AbstractTxtSolutionExporter {

    public static final String OUTPUT_FILE_SUFFIX = "line.svg";

    public static void main(String[] args) {
        SolutionConverter converter = SolutionConverter.createExportConverter(
                TspApp.DATA_DIR_NAME, TspSolution.class, new SvgTspLineAndCircleExporter());
        converter.convertAll();
    }

    @Override
    public String getOutputFileSuffix() {
        return OUTPUT_FILE_SUFFIX;
    }

    @Override
    public TxtOutputBuilder createTxtOutputBuilder() {
        return new SvgTspOutputBuilder();
    }

    public static class SvgTspOutputBuilder extends AbstractSvgTspOutputBuilder {

        @Override
        public void writeSolution() throws IOException {

            determineSizeAndOffset(solution);

            writeSvgHeader();

            bufferedWriter.write("\n");

            double oldLat = 0;
            double oldLong = 0;

            Standstill standstill = solution.getDomicile();
            Location home = standstill.getLocation();
            while (standstill != null) {
                bufferedWriter.write("  \n");
                bufferedWriter.write("    \n");
                oldLat = location.getLongitude();
                oldLong = location.getLatitude();
                standstill = findNextVisit(standstill);
            }
            bufferedWriter.write("  n");
            bufferedWriter.write("\n");
            bufferedWriter.write("\n");
        }

    }

}