Examples of com.bbn.openmap.omGraphics.OMGraphicList

com.bbn.openmap.omGraphics.OMGraphicList
This class encapsulates a List of OMGraphics.
There are several things that this list does that make it better that any ol' List. You can make several common OMGraphic modification calls on the list, and the list handles the iteration and changing of all the graphics while taking into account a travese order.
An additional benefit is that because the OMGraphicList extends OMGraphic it can contain other instances of OMGraphicList. This way you can manage groupings of graphics, (for instance, an OMGraphicList of OMGraphicLists which each have an OMRaster and OMText).
Many methods, such as generate() and findClosest() traverse the items in the GraphicsList recursively. The direction that the list is traversed is controlled by then traverseMode variable. The traverseMode mode lets you set whether the first or last object added to the list (FIRST_ADDED_ON_TOP or LAST_ADDED_ON_TOP) is drawn on top of the list and considered first for searches.

    public GeoCrossDemoLayer() {
        super();
    }


    public OMGraphicList prepare() {
        OMGraphicList list = getList();


        if (list == null) {
            list = new OMGraphicList();
        } else {
            list.clear();
        }


        OMLine oldLine = null;
        Geo ogc = null;


        for (Iterator it = lines.iterator(); it.hasNext();) {


            OMLine line = (OMLine) it.next();
            float[] ll = line.getLL();
            Geo g1 = new Geo(ll[0], ll[1]);
            Geo g2 = new Geo(ll[2], ll[3]);


            Geo gc = g1.crossNormalize(g2);


            OMPoint p = new OMPoint((float) gc.getLatitude(), (float) gc.getLongitude(), 3);
            p.setLinePaint(line.getLinePaint());
            p.setFillPaint(line.getFillPaint());
            p.setStroke(line.getStroke());


            line.addArrowHead(true);


            list.add(line);
            list.add(p);


            if (oldLine != null) {


                float[] ll2 = oldLine.getLL();
                Geo g3 = new Geo(ll2[0], ll2[1]);
                Geo g4 = new Geo(ll2[2], ll2[3]);


                OMLine line2 = new OMLine((float) ogc.getLatitude(), (float) ogc.getLongitude(), (float) gc.getLatitude(), (float) gc.getLongitude(), OMGraphic.LINETYPE_GREATCIRCLE);
                line2.setLinePaint(line.getLinePaint());
                line2.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 0f, new float[] {
                        10, 10 }, 0f));
                line2.addArrowHead(true);
                list.add(line2);


                Geo i = gc.crossNormalize(ogc);


                if (!(Intersection.isOnSegment(g1, g2, i) || Intersection.isOnSegment(g3,
                        g4,
                        i))) {
                    i = i.antipode();
                }


                p = new OMPoint((float) i.getLatitude(), (float) i.getLongitude(), 3);
                p.setOval(true);
                p.setLinePaint(line.getLinePaint());
                p.setFillPaint(Color.white);
                p.setStroke(line.getStroke());


                list.add(p);
            }


            oldLine = line;
            ogc = gc;
        }


        list.generate(getProjection());


        return list;


    }

View Full Code Here

        if (Debug.debugging("cachelayer")) {
            Debug.output("Reading cached graphics");
        }


        if (omgraphics == null) {
            omgraphics = new OMGraphicList();
        }


        if (cacheURL != null) {
            omgraphics.readGraphics(cacheURL);
        }

View Full Code Here

            contentLength += 16; // Box
            contentLength += 2; // NumParts
            contentLength += 2; // NumPoints


            if (graphic instanceof OMGraphicList) {
                OMGraphicList sublist = (OMGraphicList) graphic;
                contentLength += sublist.size() * 2; // offsets?


                for (int j = 0; j < sublist.size(); j++) {
                    OMPoly poly = (OMPoly) sublist.getOMGraphicAt(j);
                    data = poly.getLatLonArray();


                    // each value equals 4 words
                    contentLength += data.length * 4;
                }

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     * Construct a default route layer. Initializes omgraphics to a
     * new OMGraphicList, and invokes createGraphics to create the
     * canned list of routes.
     */
    public RouteLayer() {
        omgraphics = new OMGraphicList();
        createGraphics(omgraphics);
    }

View Full Code Here


    /**
     * Create the graphics.
     */
    protected OMGraphicList generateGraphics() {
        OMGraphicList omgraphics = new OMGraphicList();
        OMPoint circ;
        OMText text;


        int circle_r = 2;
        int circle_h = 5;


        for (int i = 0, j = 0; i < llData.length; i += 2, j++) {


            // grouping
            OMGraphicList group = new OMGraphicList(2);


            // XY-Circle at LatLonPoint
            circ = new OMPoint(llData[i], llData[i + 1], circle_r);
            circ.setOval(true);
            circ.setFillPaint(lineColor);
            group.add(circ);


            // Info
            text = new OMText(llData[i], llData[i + 1], 0, circle_h + 10, infoData[j], java.awt.Font.decode("SansSerif"), OMText.JUSTIFY_CENTER);
            text.setLinePaint(lineColor);
            group.add(text);


            group.setAppObject(new Integer(j));//remember index
            omgraphics.add(group);
        }


        omgraphics.generate(getProjection(), false);
        return omgraphics;

View Full Code Here

     * 
     * @param e MouseEvent
     * @return true if the listener was able to process the event.
     */
    public boolean mouseReleased(MouseEvent e) {
        OMGraphicList omgraphics = getList();
        if (omgraphics != null && drillData != null) {
            OMGraphic obj = omgraphics.findClosest(e.getX(), e.getY(), 4);
            if (obj != null) {
                int id = ((Integer) obj.getAppObject()).intValue();
                fireRequestInfoLine(drillData[id]);
                showingInfoLine = true;
                return true;

View Full Code Here

    public OMGraphicList getGraphics(double xmin, double ymin, double xmax,
                                     double ymax, OMGraphicList list,
                                     Projection proj) throws IOException,
            FormatException {
        if (list == null) {
            list = new OMGraphicList();
        }


        if (!buffered) {


            // Clean up if buffering turned off.

View Full Code Here

                                            Projection proj) {
        // There should be the same number of objects in both iterators.
        Iterator entryIt = spatialIndex.entries.iterator();
        Iterator omgIt = bufferedList.iterator();


        OMGraphicList labels = null;
        if (spatialIndex.getDbf() != null) {
            labels = new OMGraphicList();
            retList.add(labels);
        }


        while (entryIt.hasNext() && omgIt.hasNext()) {
            Entry entry = (Entry) entryIt.next();

View Full Code Here

     * 
     * @return List of OMGraphic items that will be used to create
     *         roads
     */
    public List getGraphicList() {
        OMGraphicList list = getList();
        List out = new ArrayList();


        Set seen = new HashSet();


        if (list != null) {
            if (logger.isLoggable(Level.INFO))
                logger.info("size is " + list.size());


            for (int i = 0; i < list.size(); i++) {
                OMGraphic graphic = list.getOMGraphicAt(i);
                if (seen.contains(graphic))
                    continue; // let's not re-add it


                seen.add(graphic);

View Full Code Here

     * rendered.
     */
    public void paint(Graphics g) {
        super.paint(g);
        if (drawIntersections || drawResults) {
            OMGraphicList graphics;
            graphics = new OMGraphicList(toDraw);
            graphics.generate(getProjection(), true);//all new
                                                     // graphics
            if (logger.isLoggable(Level.INFO)) {
                logger.info("rendering toDraw " + toDraw.size() + " items");
            }
            graphics.render(g);
        }
    }

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