Re: PHP Graphing Libraries...?

From: Date: Fri, 05 Jun 2009 17:32:45 +0000
Subject: Re: PHP Graphing Libraries...?
References: 1 2 3 4 5 6  Groups: php.general 
Request: Send a blank email to php-general+get-293676@lists.php.net to get a copy of this message
Hi, > I've looked at the docs and I don't see how exactly it handles "x,y" > plotting.  I need the ability to plot multiple lines (which it obviously > does) with wildly varying "x,y" values.   It seems that all of these > libraries "cheat" and force common "x" values via the labels.  I need > something like the following (all in the same chart): > $line_one_data = [x,y,x,y,x,y,x,y,x,y,x,y,x,y,x,y,x,y,x,y,x,y,x,y] > $line_two_data = [x,y,x,y,x,y,x,y] > $line_three_data = [x,y,x,y,x,y,x,y,x,y,x,y,x,y] > $graph->plot($line_one_data,$line_two_data,$line_three_data) > As I said, each "line" has its own set of "x,y", and although they're > all > obviously numbers, they don't all have "y" results at the same "x > intervals" > so I need to be able to control them independently.  Surely there's > something that can accommodate this...? Well the line doesn't do this, the X values are linear. However the Scatter works like this. ie You set an maximum X value and the X values are put in the corresponding places. -- Richard Heyes HTML5 graphing: RGraph (www.rgraph.net - updated 23rd May) PHP mail: RMail (www.phpguru.org/rmail) PHP datagrid: RGrid (www.phpguru.org/rgrid) PHP Template: RTemplate (www.phpguru.org/rtemplate) PHP SMTP: http://www.phpguru.org/smtp

« previous php.general (#293676) next »