Thanks for your answers. I found the error. For setting the schedule,
i used the method timer.schedule()..The thing with that method is,
that the timers run method is called only one time..so now i use the
method timer.scheduleRepeating() and it works perfectly..in my
example, i have 370 points, and the performance is acceptable...
So i think, i will reach my goals. :-)
Thank you, best regards. Jan
On 1 Nov., 10:58, Blagoja Chavkoski <baze...@gmail.com> wrote:
> Hi,
>
> From the code I cant really say whats the problem..looks ok...
> should show the polylone at list if is added with a weight >0
>
> but on the otehr hand i see a lot of short comings .. some of those...
> 1. the timer is to fast..
> 2 . the insert vertex mehtod is going to be killing slow if u have more than
> 300 points
> ..
>
> Why do you need this software?!
> Like I wrote before Im a owner of platform designed for tracking..
> mainly used for vehicles, but cant be used for anything,
> maybe I can offer you a partnership :)
>
> regards,
> B
>
> On Fri, Oct 29, 2010 at 3:12 PM, Jan <jan.widm...@gmx.ch> wrote:
> > Hi B,
>
> > Thanks for your answers.
>
> > I tried it like this:
>
> > In the class shipAnimation in the method onSuccess(), which is called
> > after successful rpc callback, i wrote the following code:
>
> > LatLng[] animationPoints = new LatLng[1];
> > animationPoints[0]=start;
> > Polyline animatedWay = new Polyline(animationPoints,
> > getPolylineColor(), polylineWidth, 1);
> > map.addOverlay(animatedWay);
> > ShipAnimationTimer timer = new ShipAnimationTimer(animatedWay,
> > gpsDataLatLng, map);
> > timer.schedule(30);
>
> > The variable start is the first point of the polyline
>
> > In the class ShipAnimationTimer, which extends the gwt timer, i wrote
> > the following code:
>
> > public void run() {
> > animatedWay.insertVertex(counter, gpsDataLatLng[counter]);
> > counter++;
> > if(counter==gpsDataLatLng.length){
> > this.cancel();
> > }
> > }
>
> > So far so good, but when i try to run my app, nothing happens. That
> > means, start and endmarker of the polyline are coming, but not the
> > polyline..
>
> > Do you see an error?
>
> > Thanks for your help.
>
> > Jan
>
> > On 29 Okt., 14:00, Blagoja Chavkoski <baze...@gmail.com> wrote:
> > > I just want to say that for the statment (and no way that can be done) im
> > > wrong :) there is a GWT gear lib witch start multiple threads in a
> > browser
> > > but this is totally diff then what is a real thread in a programming
> > > language :) but in any case it has the same mining..
>
> > > On Fri, Oct 29, 2010 at 1:56 PM, Blagoja Chavkoski <baze...@gmail.com
> > >wrote:
>
> > > > hi,
>
> > > > This is the scenario u need to do..I implement this in a program used
> > for a
> > > > vehicle tracking...
>
> > > > 1. get all the data u need to animate(all LatlLon positions) and store
> > them
> > > > in a arraylist
>
> > > > 2. start one timer (gwt timer ) let me say witch will fire on every
> > 100ms
> > > > (U have to test what will be the real time, dependes on the
> > > > power of the browser, for IE i had the biggest and foer opera and
> > chrome
> > > > and safari the lowest, they have the best JS engins)
>
> > > > 3.when the timer fires the event(u take by some logic couple of the
> > Lotlng
> > > > (3-4) from the list, and till the next firing of the timer u make a
> > paint of
> > > > this positions)
>
> > > > 4. the timer pasts 100ms and fires again (by this time u have finished
> > with
> > > > the paitn of the first 3-4 Latlon) so you move again to point (3) when
> > the
> > > > timer fires again (4) you soposed to be finished with (3) and u move
> > again
> > > > to (3) and u do this move (3)-(4)-(3) while the list is not empty..when
> > the
> > > > list is empty u just terminate(stop) the timer...
>
> > > > This is the scenario...u have to make a testing on the timing for sleep
> > of
> > > > the timer...(when new event is fired for the timer, u have to be
> > finished
> > > > with show of the latlon-s, what i want to say is that the combination
> > of
> > > > timer fire time and the number of the events u take is something u need
> > to
> > > > calculate by performanse(on what u do with the positions and how much
> > time
> > > > takes to handle this)
>
> > > > Hope I help,
>
> > > > Regards from Germany:)
> > > > B
>
> > > > p.s u cant use thread sleep and so on...because u dont have threds in
> > the
> > > > browser side..browser screepts(JS, FLEX, FLESH, SILVERLITE) are single
> > > > thread so there is no logic(and no way that can be done) for GWT to
> > emulate
> > > > this libs.
>
> > > > On Fri, Oct 29, 2010 at 1:08 PM, Jan <jan.widm...@gmx.ch> wrote:
>
> > > >> Hi Brian,
>
> > > >> Thanks for your answer. I tried some things with the array and timer
> > > >> and that staff. I tried with wait(), sleep() and also with a timer
> > > >> object. But everytime, there comes an error, that these things are not
> > > >> supported by gwt..
>
> > > >> The easiest way would be to have the normal callback, which gets the
> > > >> latlng array. Then in the "onSuccess()" Method changing the marker
> > > >> positions with a for loop and a delay. I tried that, but i couldn't
> > > >> find a possibility to make this delay
>
> > > >> Is it possible to do that like that, or do i have to make already the
> > > >> callback with the delay? Does that mean, that i have to make two
> > > >> callbacks, one which gets the array and the secon in a for loop?
>
> > > >> Thanks and best regards from switzerland.
>
> > > >> Jan
>
> > > >> On 11 Okt., 18:04, Brian <hibr...@gmail.com> wrote:
> > > >> > GWT is Javascript, at least what the user sees on the website.
>
> > > >> > One idea, is to get all the data from your server for a ship's route
> > > >> > as an array of lat/lng objects, then set up a Timer() object that
> > > >> > calls your callback every 30ms or so, and you just set the map
> > marker
> > > >> > position to the next entry in the lat/lng pair. For faster
> > animation,
> > > >> > jump further in your array, or decrease the 30ms to 15ms, etc.
>
> > > >> > On Oct 9, 8:53 am, Jan <jan.widm...@gmx.ch> wrote:
>
> > > >> > > Hi all,
>
> > > >> > > For an actual project, we need to evaluate movements of
> > motor-ships.
> > > >> > > The position datas are sent from a gps router on the ships and are
> > > >> > > saved in a database on our server. One of our goals is to show the
> > > >> > > driven way of one or more ships between a specified time as an
> > > >> > > animation. Our Application is written in Java with GWT. What we
> > have
> > > >> > > already is, that the driven way get's drafted like a normal route
> > in
> > > >> > > google maps. What we want is, to show for example all ship
> > movements
> > > >> > > for one day in fast motion.
>
> > > >> > > My actual problem is, how to animate the driven way. Is it
> > possible to
> > > >> > > do the animation in GWT, or do we need to use javascript?
>
> > > >> > > I hope, someone can give me some ideas.
>
> > > >> > > Thanks a lot.
>
> > > >> > > Jan
>
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