ovlparser

OvlParser

Convert GCCS-J/A or CPOF OVL (overlay) files to KMZ

Options:

    OvlParser
    Converts an OVL file to a KMZ file

    Options
            ? or help: Print this message
            IN=path/to/input/filename (required)
            OUT=path/to/output/filename (optional)
            TITLE=title of KML document (optional)

Example:

java -jar "C:\OvlParser\dist\OvlParser.jar" IN=C:\OvlParser\ovl\MOBILITY.ovl

java -jar "C:\OvlParser\dist\OvlParser.jar" IN=C:\OvlParser\ovl\MOBILITY.ovl TITLE="MOB OVL2KML TEST"

This code relies heavily upon the mil-sym-java project: https://github.com/missioncommand/mil-sym-java

See OvlParser.java for using the code: https://github.com/mdudel/ovlparser/blob/master/src/ovlparser/OvlParser.java

    String inFile = "pathToOvlFile";
    StringBuilder ovl2kml = new StringBuilder();
    
    // Append KML doc header
    ovl2kml.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
    ovl2kml.append("<kml xmlns=\"http://www.opengis.net/kml/2.2\" xmlns:gx=\"http://www.google.com/kml/ext/2.2\" xmlns:kml=\"http://www.opengis.net/kml/2.2\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n");
    ovl2kml.append("<Document>\n");
    ovl2kml.append("<name>").append("KML DOCUMENT NAME").append("</name>\n");
    
    // Build the KML body by converting each OVL object to a KML placemark
    HashMap<String, Map<String, String>> singlePoints = new HashMap<String, Map<String, String>>();
    try {
        JAXBContext jaxbContext = JAXBContext.newInstance(MODEL.class);
        Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
        MODEL model = (MODEL) jaxbUnmarshaller.unmarshal(new File(inFile));
        Ovl2KmlVisitor ovl = new Ovl2KmlVisitor(100); //pass point count for circles/ellipses
        ovl.setIconURL("");
        ovl.setImageType("png");
        for (Object obj : model.getPlottableObjects()) {
            if (obj instanceof OvlGraphicElement) {
                OvlGraphicElement e = (OvlGraphicElement) obj;
                e.accept(ovl);
            }// if ovl object
        }//for ovl object
        ovl2kml.append(ovl.getKml()).append("\n");
        singlePoints.putAll(ovl.getSinglePoints());
    } catch (JAXBException ex) {
        ovl2kml.append("<description>\n");
        ovl2kml.append("EXCEPTION:\n").append(ex.toString());
        System.out.println("Error parsing " + inFile + "\n" + ex.getMessage());
        ovl2kml.append("</description>\n");
    }//try catch block

    // Append the KML doc footer
    ovl2kml.append("</Document>\n");
    ovl2kml.append("</kml>\n");
    
    String outFile = "pathToKmzFile";
    File fout = new File(outFile);
    if (!fout.exists()) {
        try {
            fout.createNewFile();
            FileOutputStream fos = new FileOutputStream(fout);
            ZipOutputStream zoS = new ZipOutputStream(fos);
            ZipEntry ze = new ZipEntry("doc.kml");
            zoS.putNextEntry(ze);
            PrintStream ps = new PrintStream(zoS);
            // write doc.kml into the KMZ file
            ps.println(ovl2kml.toString());
            ps.flush();
            zoS.closeEntry(); // close KML entry    
            // write the single point symbols as pngs
            for (Map.Entry<String, Map<String, String>> entry : singlePoints.entrySet()) {
                SECRenderer sr = SECRenderer.getInstance();
                Map<String, String> params = entry.getValue();
                PNGInfo pi;
                pi = sr.getMilStdSymbolImage(entry.getKey(), params);
                if (null == pi) {
                    System.out.println("Error creating " + entry.getKey());
                    System.out.println("Parameters: " + params);
                    params.put(MilStdAttributes.FillColor, "00ffffff");
                    pi = sr.getMilStdSymbolImage("SUGP-----------", params);
                }
                ZipEntry zEnt = new ZipEntry(entry.getKey() + "." + imageType);
                zoS.putNextEntry(zEnt);
                zoS.write(pi.getImageAsByteArray());
                zoS.flush();
                zoS.closeEntry();
            }
            zoS.close();

        } catch (IOException ex) {
            System.out.println("Error writing " + outFile + "\n" + ex.getMessage());
        }
    }