// -------------------------
// charting
if (!chkDir($cache_dir)) {
syslog(LOG_DEBUG, "Can't create directory " . $cache_dir);
}
$data = new pData();
$cache = new pCache(array("CacheFolder" => $cache_dir));
// fill data struct
$data->addPoints($times, "Timestamps");
foreach ($series as $sensor => $serie) {
$data->addPoints($serie, $sensor);
}
$chartHash = $cache->getHash($data);
if ($cache->isInCache($chartHash)) {
syslog(LOG_DEBUG, "p4: got from cache");
$cache->strokeFromCache($chartHash);
} else {
$points = $data->getSerieCount("Timestamps");
// if ($skipTicks == -1)
// $skipTicks = $points / ($width / 75);
// $data->setAxisName(0, "Temperature");
$data->setAxisUnit(0, $unit);
$data->setAxisDisplay(0, AXIS_FORMAT_METRIC);
// $data->setSerieDescription("Timestamp","Sampled Dates");
$data->setAbscissa("Timestamps");
// $data->setXAxisDisplay(AXIS_FORMAT_TIME, $xScaleFormat);
$data->setXAxisName("Zeit");
// Create the pChart object
$picture = new pImage($width, $height, $data);
// $picture->Antialias = false;
// Draw the background
