Re: dynamic graphs (in real time)

I think this could be done with a few tools. You could build a flash app that can tunnel to the server without refreshing the page. flash would get the new data then have draw a new graph using javascript to write/alter an SVG graph This might work for you The persons that will be viewing this page, how are they going to connect to the server, via a modem or highspeed connection? if it is a modem connection, you can forget REAL-TIME refreshing altogether. it would take longer then 1 sec to send the request / process the request / receive processed data and then change the graph. But what I described above will get you going down the right road IMHO. Jim Lucas ----- Original Message ----- From: "Wakan" <porcapuzza@yahoo.it> To: <php-general@lists.php.net> Sent: Saturday, May 03, 2003 10:00 AM Subject: RE: [PHP] dynamic graphs (in real time) > Yes, > but the frequency I need is inferior to 1 sec. > Is there something like opening a connection > with the server without closing it, and update > the image continuously? > but without flickering problems... > > At 12.50 03/05/2003 -0400, you wrote: > >Why not have a php cron job that runs every x seconds and creates a new > >gif of the graph, then your page can use javascript to reload the image > >every x seconds > > > > > -----Original Message----- > > > From: Wakan [mailto:porcapuzza@yahoo.it] > > > Sent: Saturday, May 03, 2003 12:50 PM > > > To: php-general@lists.php.net > > > Subject: [PHP] dynamic graphs (in real time) > > > > > > I'm writing an application that > > > reads data from some serial sensor. > > > I'd like to generate a graph (I'm using the jpgraph) from that data > >and > > > display it in real time. > > > The question is: how can I show data while they're changing ? > > > I've tried to reload the browser each seconds, but it's not so elegant > > > (I don't want to reload the entire page) and I need to display data > >more > > > frequently. > > > Some ideas? > > > Carlo > > > > > > > > > > > > -- > > > PHP General Mailing List (http://www.php.net/) > > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >