[ka-Map-users] quick question

[Ed Cooley]

There is a pretty good example of this already in the archives.

Here it is and thanks to Jon for posting:

I'm probably reinventing a wheel here, but the recent posts about plotting
prompted me to do a simple tracking animation demo using zorn's
wz_jsgraphics library to create, move and modify 'div' plotting markers at
run-time.  The demo and code are at (slow server, narrow pipe):

http://celineart.com:8080/ka-map-demo/htdocs

Comments, alternate approaches are welcome:
performance and scalability are obvious questions.
Pardon the coding style: it'll be clear that javascript is not my native
language...

-jon

Jon Fatula

---
Ed Cooley
Strategy Systems, Inc.


> -----Original Message-----
> From: ka-map-users-bounces at lists.maptools.org [mailto:ka-map-users-
> bounces at lists.maptools.org] On Behalf Of Paul Spencer
> Sent: Wednesday, November 02, 2005 7:01 PM
> To: Matthew Edmondson
> Cc: ka-map-users at lists.maptools.org
> Subject: Re: [ka-Map-users] quick question
> 
> Matt,
> 
> ka-Map provides a function to plot point data over top of the map
> (addObjectGeo in kaMap.js).  Using this function, it is possible to
> create images and add them as overlays, then update the position in
> 'real-time' without changing the map data underneath.
> 
> However, to build this kind of functionality requires a bit of an
> investment in time to understand some of how ka-Map works and some
> reasonable knowledge of javascript.  Its not for the faint of heart!!!
> 
> Cheers
> 
> Paul
> 
> On 2-Nov-05, at 6:02 PM, Matthew Edmondson wrote:
> 
> > I fairly new to GIS (3 months) but have been using and have
> > successfully set up a mapserver/chameleon server. One of the
> > requests I have now received was to present constantly updated data
> > on a web map.
> >
> > I searched the ka-map archives list but didn't find an answer to
> > the following question: Is it possible to have most of the data
> > stay cached on the client side but refreshing a individual point
> > data layer to give to appearance of real time updates, without the
> > need to have the background GIS data refreshing with it.
> >
> > Thanks,
> >
> > Matt
> > _______________________________________________
> > ka-Map-users mailing list
> > ka-Map-users at lists.maptools.org
> > http://lists.maptools.org/mailman/listinfo/ka-map-users
> 
> +-----------------------------------------------------------------+
> |Paul Spencer                           pspencer at dmsolutions.ca   |
> +-----------------------------------------------------------------+
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
> +-----------------------------------------------------------------+
> 
> 
> 
> 
> _______________________________________________
> ka-Map-users mailing list
> ka-Map-users at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/ka-map-users