Hi,
I assume you mean that you want daily data to be plotted, but only show the legend on the x-axis for certain values, like 1st of Jan, 1st of Feb.
I wanted only 15 values to be shown, but had between 30 - 720 values to be plotted, and solved it like this in PHP:
$strXML .= "";
// show only ca 15 dates on the calendar.
$show_frequency = $num_days / 15;
// create the calendar (catigories)
$cur_row = 0;
foreach ( $cur_calendar as $cur_day ) {
if ($cur_row++%$show_frequency == 0 ) {
$cur_display = 1;
} else {
$cur_display = 0;
}
$strXML .= "";
$cur_row++;
}
$strXML .= "";
This produces XML that looks like this:
categories
category name='2008-03-29' showName='1' /
category name='2008-03-30' showName='0' /
category name='2008-03-31' showName='0' /
category name='2008-04-01' showName='0' /
category name='2008-04-02' showName='0' /
category name='2008-04-03' showName='0' /
category name='2008-04-04' showName='1' /
category name='2008-04-05' showName='0' /
category name='2008-04-06' showName='0' /
...
Sorry for the weird xml, but the forum does not display the code within "<" and ">", weird.
This means that you've got a category for each and every "bucket"/date, but only the ones with showName=1 will be visible in your chart.
Good luck!
//magnus
