private function _renderPieChart($groupCount, $dimensions = '2d', $doughnut = False, $multiplePlots = False)
{
require_once 'jpgraph_pie.php';
if ($dimensions == '3d') {
require_once 'jpgraph_pie3d.php';
}
$this->_renderPiePlotArea($doughnut);
$iLimit = $multiplePlots ? $groupCount : 1;
for ($groupID = 0; $groupID < $iLimit; ++$groupID) {
$grouping = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotGrouping();
$exploded = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotStyle();
if ($groupID == 0) {
$labelCount = count($this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotValuesByIndex(0)->getPointCount());
if ($labelCount > 0) {
$datasetLabels = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotCategoryByIndex(0)->getDataValues();
$datasetLabels = $this->_formatDataSetLabels($groupID, $datasetLabels, $labelCount);
}
}
$seriesCount = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotSeriesCount();
$seriesPlots = array();
// For pie charts, we only display the first series: doughnut charts generally display all series
$jLimit = $multiplePlots ? $seriesCount : 1;
// Loop through each data series in turn
for ($j = 0; $j < $jLimit; ++$j) {
$dataValues = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotValuesByIndex($j)->getDataValues();
// Fill in any missing values in the $dataValues array
$testCurrentIndex = 0;
foreach ($dataValues as $k => $dataValue) {
while ($k != $testCurrentIndex) {
$dataValues[$testCurrentIndex] = null;
++$testCurrentIndex;
}
++$testCurrentIndex;
}
if ($dimensions == '3d') {
$seriesPlot = new PiePlot3D($dataValues);
} else {
if ($doughnut) {
$seriesPlot = new PiePlotC($dataValues);
} else {
$seriesPlot = new PiePlot($dataValues);
}
}
if ($multiplePlots) {
$seriesPlot->SetSize(($jLimit - $j) / ($jLimit * 4));
}
if ($doughnut) {
$seriesPlot->SetMidColor('white');
}
$seriesPlot->setBackgroundColor(self::$_colourSet[self::$_plotColour++]);
if (count($datasetLabels) > 0) {
$seriesPlot->SetLabels(array_fill(0, count($datasetLabels), ''));
}
if ($dimensions != '3d') {
$seriesPlot->SetGuideLines(false);
}
if ($j == 0) {
if ($exploded) {
$seriesPlot->ExplodeAll();
}
$seriesPlot->SetLegends($datasetLabels);
}
$this->_graph->Add($seriesPlot);
}
}
}
