$legendObj = $c->addLegend(50, 455, false, "", 8);
$legendObj->setBackground(Transparent);
// Add a title box to the chart using 8 pts Arial Bold font, with yellow (0xffff40)
// background and a black border (0x0)
$textBoxObj = $c->addTitle("{$symb}.{$pf_exch}: {$symb_name}\nExponential Moving Averages from {$first_date} to {$pf_working_date}", "arialbd.ttf", 12);
// Set the y axis label format to US$nnnn
$c->yAxis->setLabelFormat("£{value}");
$m_yearFormat = "{value|yyyy}";
$m_firstMonthFormat = "<*font=bold*>{value|mmm yy}";
$m_otherMonthFormat = "{value|mmm}";
$m_firstDayFormat = "<*font=bold*>{value|d mmm}";
$m_otherDayFormat = "{value|d}";
$m_firstHourFormat = "<*font=bold*>{value|d mmm\nh:nna}";
$m_otherHourFormat = "{value|h:nna}";
$m_timeLabelSpacing = 50;
$c->xAxis->setMultiFormat(StartOfDayFilter(), $m_firstDayFormat, StartOfDayFilter(1, 0.5), $m_otherDayFormat, 1);
$layer = $c->addLineLayer2();
$layer->setXData($dates);
$layer->addDataSet($ema_12, -1, "12 day");
$layer->addDataSet($ema_26, -1, "26 day");
$layer = $c->addHLOCLayer3($high, $low, $open, $close, 0x8000, 0xff0000);
$layer->setXData($dates);
// Output the chart
header("Content-type: image/png");
print $c->makeChart2(PNG);
} else {
return;
}
?>
function setXLabels(&$a)
{
$a->setLabels2($this->m_timeStamps);
if ($this->m_extraPoints < count($this->m_timeStamps)) {
$tickStep = (int) ((count($this->m_timeStamps) - $this->m_extraPoints) * $this->m_timeLabelSpacing / ($this->m_totalWidth - $this->m_leftMargin - $this->m_rightMargin)) + 1;
$timeRangeInSeconds = $this->m_timeStamps[count($this->m_timeStamps) - 1] - $this->m_timeStamps[$this->m_extraPoints];
$secondsBetweenTicks = $timeRangeInSeconds / ($this->m_totalWidth - $this->m_leftMargin - $this->m_rightMargin) * $this->m_timeLabelSpacing;
if ($secondsBetweenTicks * (count($this->m_timeStamps) - $this->m_extraPoints) <= $timeRangeInSeconds) {
$tickStep = 1;
if (count($this->m_timeStamps) > 1) {
$secondsBetweenTicks = $this->m_timeStamps[count($this->m_timeStamps) - 1] - $this->m_timeStamps[count($this->m_timeStamps) - 2];
} else {
$secondsBetweenTicks = 86400;
}
}
if ($secondsBetweenTicks > 360 * 86400 || $secondsBetweenTicks > 90 * 86400 && $timeRangeInSeconds >= 720 * 86400) {
#yearly ticks
$a->setMultiFormat2(StartOfYearFilter(), $this->m_yearFormat, $tickStep);
} else {
if ($secondsBetweenTicks >= 30 * 86400 || $secondsBetweenTicks > 7 * 86400 && $timeRangeInSeconds >= 60 * 86400) {
#monthly ticks
$monthBetweenTicks = (int) ($secondsBetweenTicks / 31 / 86400) + 1;
$a->setMultiFormat(StartOfYearFilter(), $this->m_firstMonthFormat, StartOfMonthFilter($monthBetweenTicks), $this->m_otherMonthFormat);
$a->setMultiFormat2(StartOfMonthFilter(), "-", 1, false);
} else {
if ($secondsBetweenTicks >= 86400 || $secondsBetweenTicks > 6 * 3600 && $timeRangeInSeconds >= 86400) {
#daily ticks
$a->setMultiFormat(StartOfMonthFilter(), $this->m_firstDayFormat, StartOfDayFilter(1, 0.5), $this->m_otherDayFormat, $tickStep);
} else {
#hourly ticks
$a->setMultiFormat(StartOfDayFilter(1, 0.5), $this->m_firstHourFormat, StartOfHourFilter(1, 0.5), $this->m_otherHourFormat, $tickStep);
}
}
}
}
}
