function __construct($values, $labels)
{
parent::__construct();
$this->values = $values;
$this->labels = $labels;
$this->oChart = $this->buildChart();
}
protected function setUpGraph()
{
parent::setUpGraph();
$aDataSets = $this->getDataSets();
// if no data, or only one data point, we don't display the graph
if (count($this->xLabels) <= 1) {
return false;
}
$chart = $this->getGraph();
//set up the axes
$y_axis = $this->createYAxis();
$y_axis->set_range(max(0, $this->getMinYValue() - 1), $this->getMaxYValue() + 1);
$y_axis->set_steps(ceil($this->getMaxYValue() / 4));
$y_axis->set_label_text("#val#" . $this->yUnit);
//y_axis legend
$y_legend = new y_legend('Viewers');
$y_legend->set_style('color: #515151; font-size: 12px;');
$chart->set_y_legend($y_legend);
$x_axis = $this->createXAxis();
$x_values = $this->xLabels;
$xSteps = 5;
if (count($x_values) < $xSteps) {
$xSteps = count($x_values);
} else {
// hack around the set_steps that doesn't seem to work for X axis
foreach ($x_values as $i => &$xValue) {
if ($i % $xSteps != 0) {
$xValue = '';
}
}
}
$x_axis->set_steps($xSteps);
$x_labels = new x_axis_labels();
$x_labels->set_labels($x_values);
// Add the X Axis Labels to the X Axis
$x_axis->set_labels($x_labels);
$chart->add_y_axis($y_axis);
$chart->x_axis = $x_axis;
$oColorHelper = new Graph_DataSetColorsHelper();
foreach ($aDataSets as $aDataSet) {
$values = $aDataSet['values'];
$name = $aDataSet['name'];
$aColors = $oColorHelper->getNextColors();
$dotValues = $this->buildDotValues($aColors['line'], $values, $name);
$area = $this->createArea($aColors['line'], $aColors['fill']);
$area->set_fill_alpha("0.1");
$area->set_values($dotValues);
$area->set_text($name);
// add the area object to the chart:
$chart->add_element($area);
}
return $chart;
}
