public function render($outputDestination = null)
{
$libraryName = PHPExcel_Settings::getChartRendererName();
if (is_null($libraryName)) {
return false;
}
// Ensure that data series values are up-to-date before we render
$this->refresh();
$libraryPath = PHPExcel_Settings::getChartRendererPath();
$includePath = str_replace('\\', '/', get_include_path());
$rendererPath = str_replace('\\', '/', $libraryPath);
if (strpos($rendererPath, $includePath) === false) {
set_include_path(get_include_path() . PATH_SEPARATOR . $libraryPath);
}
$rendererName = 'PHPExcel_Chart_Renderer_' . $libraryName;
$renderer = new $rendererName($this);
if ($outputDestination == 'php://output') {
$outputDestination = null;
}
return $renderer->render($outputDestination);
}
