shapespecialist.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

            }
        }

        return list;
    }

    /**
     * The CSpecialist function.
     */
    public UGraphic[] fillRectangle(
                                    com.bbn.openmap.CSpecialist.CProjection p,
                                    com.bbn.openmap.CSpecialist.LLPoint ll1,
                                    com.bbn.openmap.CSpecialist.LLPoint ll2,
                                    java.lang.String staticArgs,
                                    org.omg.CORBA.StringHolder dynamicArgs,
                                    com.bbn.openmap.CSpecialist.GraphicChange notifyOnChange,
                                    String uniqueID) {
        //      System.out.println("ShapeSpecialist.fillRectangle()");
        try {
            Vector list = computeGraphics(ll1, ll2);
            int len = list.size();

            UGraphic[] ugraphics = new UGraphic[len];
            for (int i = 0; i < len; i++) {
                SGraphic sg = (SGraphic) list.elementAt(i);
                ugraphics[i] = sg.ufill();
            }

            //          System.out.println("ShapeSpecialist.fillRectangle():
            // got "+ugraphics.length+" graphics");
            return ugraphics;
        } catch (Throwable t) {
            System.err.println("ShapeSpecialist.fillRectangle(): " + t);
            t.printStackTrace();

            // Don't throw another one! Try to recover!
            //          throw new RuntimeException();

            return new UGraphic[0];
        }
    }

    protected SpecialistSpatialIndex locateAndSetShapeData(
                                                           String shapeFileName,
                                                           String spatialIndexFileName) {
        File spatialIndexFile = new File(spatialIndexFileName);
        SpatialIndex si = null;

        if (spatialIndexFile.isAbsolute()) {
            //          System.out.println("Absolute!");
            try {
                si = new SpecialistSpatialIndex(spatialIndexFileName, shapeFileName);
            } catch (java.io.IOException e) {
                e.printStackTrace();
            }
        } else {
            //          System.out.println("Relative!");
            Vector dirs = Environment.getClasspathDirs();
            int nDirs = dirs.size();
            if (nDirs > 0) {
                for (int i = 0; i < nDirs; i++) {
                    String dir = (String) dirs.elementAt(i);
                    File sif = new File(dir, spatialIndexFileName);
                    if (sif.isFile()) {
                        File sf = new File(dir, shapeFileName);
                        try {
                            //                          System.out.println(sif.toString());
                            //                          System.out.println(sf.toString());
                            si = new SpecialistSpatialIndex(sif.toString(), sf.toString());
                            break;
                        } catch (java.io.IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
                if (si == null) {
                    System.err.println("Unable to find file: " + shapeFileName);
                    System.err.println("Unable to find file: "
                            + spatialIndexFileName);
                }
            } else {
                System.err.println("No directories in CLASSPATH!");
                System.err.println("Unable to locate file: " + shapeFileName);
                System.err.println("Unable to locate file: "
                        + spatialIndexFileName);
            }
        }
        return (SpecialistSpatialIndex) si;
    }

    public void signOff(String uniqueID) {
        System.out.println("ShapeSpecialist.signOff()");
    }

    public void receiveGesture(MouseEvent gesture, String uniqueID) {}

    public void makePalette(WidgetChange notifyOnChange, String staticArgs,
                            org.omg.CORBA.StringHolder dynamicArgs,
                            String uniqueID) {}

    public void printHelp() {
        System.err.println("usage: java [java/vbj args] <specialist class> [specialist args]");
        System.err.println("");
        System.err.println("       Java Args:");
        System.err.println("       -mx<NUM>m               Set max Java heap in Megs");
        System.err.println("");
        System.err.println("       VBJ Args:");
        System.err.println("       -DORBmbufSize=8388608   Define the VBJ buffer size");
        System.err.println("       -DORBdebug              Enable VBJ debugging");
        System.err.println("");
        System.err.println("       Specialist Args:");
        System.err.println("       -ior <iorfile>                  IOR file");
        System.err.println("       -properties \"<file> ...\"      Path to properties file");
    }

    public void parseArgs(String[] args) {
        Color lcolor = null;
        Color fcolor = null;

        for (int i = 0; i < args.length; i++) {

            if (args[i].equalsIgnoreCase("-properties")
                    && (args.length > (i + 1))) {
                properties = loadProps(args[i + 1]);

                lcolor = PropUtils.parseColorFromProperties(properties,
                        lineColorProperty,
                        "FF000000");
                lineColor = new SColor((short) ((lcolor.getRed()) * 65535 / 255), (short) ((lcolor.getGreen()) * 65535 / 255), (short) ((lcolor.getBlue()) * 65535 / 255));
                if (properties.getProperty(fillColorProperty) != null) {

                    fcolor = PropUtils.parseColorFromProperties(properties,
                            fillColorProperty,
                            "FF000000");

                    fillColor = new SColor((short) ((fcolor.getRed()) * 65535 / 255), (short) ((fcolor.getGreen()) * 65535 / 255), (short) ((fcolor.getBlue()) * 65535 / 255));
                }

                String ssx = properties.getProperty(spatialIndexProperty);
                String shp = properties.getProperty(shapeFileProperty);

                //              System.out.println("Getting " + shp + " and " +
                // ssx);

                init(shp, ssx);
            }
        }

        if (properties == null) {
            System.out.println("Need properties file!");
            System.out.println("");
            System.out.println("#######################################");
            System.out.println("shapeFile=<path to shape file (.shp)>");
            System.out.println("spatialIndex=<path to spatial index file (.ssx)>");
            System.out.println("lineColor=<hex ARGB color> i.e. FF000000 for black");
            System.out.println("fillColor=<hex ARGB color> i.e. FF000000 for black>");
            System.out.println("#######################################");
            System.out.println("");
            printHelp();
            System.exit(0);
        }

        super.parseArgs(args);
        System.out.println("Using colors -> lcolor = " + lcolor + ", fcolor = "
                + fcolor);
    }

    /**
     * Load the named file from the named directory into the given
     * <code>Properties</code> instance. If the file is not found a
     * warning is issued. If an IOExceptio occurs, a fatal error is
     * printed and the application will exit.
     * 
     * @param file the name of the file
     * @return the loaded properties
     */
    public Properties loadProps(String file) {
        java.io.File propsFile = new java.io.File(file);
        Properties props = new Properties();
        try {
            java.io.InputStream propsStream = new java.io.FileInputStream(propsFile);
            props.load(propsStream);
        } catch (java.io.FileNotFoundException e) {
            System.err.println("ShapeSpecialist did not find properties file: \""
                    + file + "\"");
            System.exit(1);
        } catch (java.io.IOException e) {
            System.err.println("Caught IO Exception reading configuration file \""
                    + propsFile + "\"");
            e.printStackTrace();
            System.exit(1);
        }
        return props;
    }

    public static void main(String[] args) {
        Debug.init(System.getProperties());

        // Create the specialist server
        ShapeSpecialist srv = new ShapeSpecialist();
        srv.parseArgs(args);
        srv.start(args);
    }
}