We must add Java's rendering slowliness into account...Windows Mappers are
so fast...Is there a way to speed it up?
----- Original Message -----
From: "Mariusz Chmielewski" <mchmiel21_at_tlen.pl>
To: "Don Dietrick" <dietrick_at_bbn.com>; "OpenMap Support" <openmap_at_bbn.com>;
<openmap-users_at_bbn.com>
Sent: Monday, June 06, 2005 2:40 PM
Subject: Re: [OpenMap Users] Questions on how to use OpenMap as an applet
which uses data from server
> Using relative path isn't such a great idea becouse of the size of the
> RPF map (32 MB) would You suggest?? I have a problem putting such data
> into the JAR - i do not know if the JAVA VM will allow to execute such
> application. I am thinking of using Java Web Start but this does not
> solve my problem i do not want to put map data into my jar file of an
> applet is there a chance thath if i point to map in URL openMap layer
> will automaticly download it itself?? is there a chance that i could
> write some code as a servlet that loads a whole CADRG map and sends only
> little piec of it as a new CADRG map. Has anybody tried it?? why the
> engine of open map is so slow while using the CADRG data. When i scroll
> 3 layer on my 2,2 GHz Pentium 4 512 RAM - i am waiting almost 5 seconds
> befor i can see anything.
>
> Thanks for any opinions and hints
>
>
> Don Dietrick napisał(a):
>
> > Hi Mariusz,
> >
> > On May 27, 2005, at 8:50 AM, Mariusz Chmielewski wrote:
> >
> >> Hi I am now experiencing some problems with teh open map as an
> >> applet. I written my own applet so it would be downloaded from the
> >> server and it contains openmap. But i ve got some issues that i
> >> cannot solve:
> >> 1. i am using the CADRG MAPS, those are the spatial data which
> >> requires large amount of memory about 2MB and the question is should
> >> i put the data into the jar file, or should i put the data on the
> >> server and download it or should i simply load the resources on the
> >> client. Ofcourse the 3 option is the worst becouse i do not want the
> >> spatial data to be accessable on the client maschine outside the
> >> applet. (additional info to the first option how to load a map using
> >> properties file from local applet resources??)
> >
> >
> > You can put the data in a jar file.
> >
> >> 2. Concerning properties configuration (same as the map) where it
> >> should be placed inside jar and how to load it??
> >
> >
> > You would configure the RPFLayer to have a relative path to the RPF
> > directory in the jar file, from the root of the jar file.
> >
> >> 3. Is there a chance that i could load only a part of CADRG map and
> >> the load the rest if neccessery?? so that i could minimize the size
> >> of used memory during the execution of the applet??
> >
> >
> > That's the way the layer works now. It only loads what it needs. You
> > can change the cache sizes so it holds onto less memory if you need
that.
> >
> > - Don
> >
> > --
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> >
> >
>
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Received on Mon Jun 06 2005 - 08:42:38 EDT