vehicle tracking using omapplet.

hi all,

i have finally got the omapplet up and running fine. Thanks for all
ur help(s).
I need a bit of guidance more about a vehicle tracking application
that i am abt to develop.
my application is something like this...
when a user wants to see his vehicles position on the map, he logs on to
his browser and then he can look at the vehicles position as it gets updated from the
GPS. what i need to know here is .. can this updation of the map be done
using the applet...if let us say the map/applet is updated every 5 seconds,
then will the whole page have to be refreshed...we must not forget that the data
(LatLon positions of the vehicle) comes from the server. and the applet is run
on the client side..so there shd be some delay for data retrieval. How good will
be the response time.

I intend to use a servlet/jsp to provide the data to the applet and then the applet
refreshes the latest position of the vehicle.
One more thing..is it necessary to have the vehicle's position (as a dot/star)
on a different layer so that we can refresh only this layer..is this
possible. ANd also can somebody provide some hints abt how to make a layer
which is empty initially and gets updated as and when necessary, and how to plot
points on to this layer...are there some default symbols available in openmap
or wd i hv to use some gif or jpg image.

One last thing...the applet resides in the openmap.jar archive..so if i want to make an
additional application so that the applet can communicate with my program too,
how shd i go abt that...shd i add my latest programs to the archive..or can i
hv some sort of an external interface??

Thanks in advance..
waiting for replies..

anoop

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