Draw route on RichMapField for BlackBerry OS 6 - blackberry

Question

Could someone help me figure out how to draw a route on RichMapField,
i am able to draw on a MapField.
I want to use RichMapField, because i can use the MapDataModel to add more than one marker dynamically.
Updated Code:
This is my attempt at writing code to display route from A to B on a RichMapField, all I am getting is a dot on the map. Could someone please help me with this:
class MapPathScreen extends MainScreen {
MapControl map;
Road mRoad = new Road();
RichMapField mapField = MapFactory.getInstance().generateRichMapField();
public MapPathScreen() {
double fromLat = 47.67, fromLon = 9.38, toLat =47.12, toLon = 9.47;
/* double fromLat = 49.85, fromLon = 24.016667;
double toLat = 50.45, toLon = 30.523333;
*/
String url = RoadProvider.getUrl(fromLat, fromLon, toLat, toLon);
InputStream is = getConnection(url);
mRoad = RoadProvider.getRoute(is);
map = new MapControl(mapField);
add(new LabelField(mRoad.mName));
add(new LabelField(mRoad.mDescription));
add(map);
}
protected void onUiEngineAttached(boolean attached) {
super.onUiEngineAttached(attached);
if (attached) {
map.drawPath(mRoad);
}
}
private InputStream getConnection(String url) {
HttpConnection urlConnection = null;
InputStream is = null;
try {
urlConnection = (HttpConnection) Connector.open(url);
urlConnection.setRequestMethod("GET");
is = urlConnection.openInputStream();
} catch (IOException e) {
e.printStackTrace();
}
return is;
}
protected boolean keyDown(int keycode, int time)
{
MapAction action=mapField.getAction();
StringBuffer sb = new StringBuffer();
// Retrieve the characters mapped to the keycode for the current keyboard layout
Keypad.getKeyChars(keycode, sb);
// Zoom in
if(sb.toString().indexOf('i') != -1)
{
action.zoomIn();
return true;
}
// Zoom out
else if(sb.toString().indexOf('o') != -1)
{
action.zoomOut();
return true;
}
return super.keyDown(keycode, time);
}
}
class MapControl extends net.rim.device.api.lbs.maps.ui.MapField {
Bitmap bmp = null;
MapAction action;
MapField map = new MapField();
RichMapField mapRich;
Road road;
public MapControl(RichMapField mapRich)
{
this.mapRich = mapRich;
}
public void drawPath(Road road) {
if (road.mRoute.length > 0) {
Coordinates[] mPoints = new Coordinates[] {};
for (int i = 0; i < road.mRoute.length; i++) {
Arrays.add(mPoints, new Coordinates(road.mRoute[i][1],
road.mRoute[i][0], 0));
}
double moveToLat = mPoints[0].getLatitude()
+ (mPoints[mPoints.length - 1].getLatitude() - mPoints[0].getLatitude()) / 2;
double moveToLong = mPoints[0].getLongitude()
+ (mPoints[mPoints.length - 1].getLongitude() - mPoints[0].getLongitude()) / 2;
Coordinates moveTo = new Coordinates(moveToLat, moveToLong, 0);
action = this.getAction();
action.setZoom(15);
action.setCentreAndZoom(new MapPoint(moveToLat,moveToLong), 15);
bmp = new Bitmap(500, 500);
bmp.createAlpha(Bitmap.ALPHA_BITDEPTH_8BPP);
Graphics g = Graphics.create(bmp);
int x1 = -1, y1 = -1, x2 = -1, y2 = -1;
XYPoint point = new XYPoint();
Coordinates c = new Coordinates(mPoints[0].getLatitude(),mPoints[0].getLongitude(),0);
map.convertWorldToField(c, point);
x1=point.x;
y1 = point.y;
g.fillEllipse(x1, y1, x1, y1 + 1, x1 + 1, y1, 0, 360);
for (int i = 1; i < mPoints.length; i++) {
XYPoint point1 = new XYPoint();
Coordinates c1 = new Coordinates(mPoints[i].getLatitude(),mPoints[i].getLongitude(),0);
map.convertWorldToField(c1, point1);
x2 = point1.x;
y2 = point1.y;
g.setColor(Color.GREEN);
//g.fillEllipse(x1, y1, x1, y1 + 1, x1 + 1, y1, 0, 360);
g.drawLine(x1, y1, x2, y2);
x1 = x2;
y1 = y2;
}
}
}
protected void paint(Graphics g) {
super.paint(g);
if (bmp != null) {
g.setGlobalAlpha(100);
g.drawBitmap(0, 0, bmp.getWidth(), bmp.getHeight(), bmp, 0, 0);
}
}