Hello Kore,
thanks for you ideas, but, in the meanwhile I was able to solve my
problem.
It was a very nice surprise to see that ezcomponents API already has the
solution for my problem :)
bellow is my code; I'm sure you'll understand what id does; it
completelly solved my problem. thx.
=========================================================
$chart = new ezcGraphLineChart();
$chart->yAxis = new ezcGraphChartElementLogarithmicalAxis();
$chart->yAxis->min = 0;//10^0
$chart->yAxis->base = 10;
$chart->yAxis->label = "bit/s";
$myfunc = '
if ($b == 0) return " 1kbit/s";
if ($b == 1) return " 10k";
if ($b == 2) return " 100k";
if ($b == 3) return " 1Mbit/s";
if ($b == 4) return " 10M";
if ($b == 5) return " 100M";
if ($b == 6) return " 1Gbit/s";
if ($b == 7) return " 10G";
$c=$b+3;
return " 10^$c";
';
$chart->yAxis->labelCallback = create_function('$a, $b', $myfunc);
=========================================================
That was my problem. And a great solution within the API. thx :)
I have another question :) I'll send another email right away.
cheers
Joao
On Thu, 2008-10-23 at 10:57 +0200, Kore Nordmann wrote:
> Hello Joao,
>
> On Thu, 2008-10-16 at 18:33 +0100, Joao Ferreira gmail wrote:
> > I need some way to format the string of my Y axis in a way that would
> > allow me to do this
> >
> > Y axis tick - Label
> > 1000 - 1kbit/s
> > 1000000 - 1Mbit/s
> > 1000000000 - 1Gbit/s
> >
> > well, this is more of a php question really :)
>
> This function should roughly do, what you are intending here.
>
> function format( $number )
> {
> $identifier = array( 'k', 'M', 'G', 'T', 'P' );
> $i = 0;
> while ( ( $number > 900 ) &&
> ( $i <= count( $identifier ) ) )
> {
> $number /= 1000;
> ++$i;
> }
>
> return sprintf( '%.2f %sbit/s',
> $number,
> ( $i === 0 ? '' : $identifier[$i - 1] )
> );
> }
>
> > is there a way for the format string to execute some procedure defined
> > by myself in order to map Y-tick values to specific strings defined by
> > me ?
>
> I don't really get what you are intending here, can you please elaborate
> and explain what you are trying to accomplish?
>
> Kind regrads,
> Kore
>
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