PhpOffice\PhpPresentation\Writer\PowerPoint2007\PptCharts::writePlotArea PHP Method

    protected function writePlotArea(XMLWriter $objWriter, PlotArea $subject, Chart $chart)
    {
        // c:plotArea
        $objWriter->startElement('c:plotArea');
        // Write layout
        $this->writeLayout($objWriter, $subject);
        // Write chart
        $chartType = $subject->getType();
        if ($chartType instanceof Area) {
            $this->writeTypeArea($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } elseif ($chartType instanceof Bar) {
            $this->writeTypeBar($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } elseif ($chartType instanceof Bar3D) {
            $this->writeTypeBar3D($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } elseif ($chartType instanceof Pie) {
            $this->writeTypePie($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } elseif ($chartType instanceof Pie3D) {
            $this->writeTypePie3D($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } elseif ($chartType instanceof Line) {
            $this->writeTypeLine($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } elseif ($chartType instanceof Scatter) {
            $this->writeTypeScatter($objWriter, $chartType, $chart->hasIncludedSpreadsheet());
        } else {
            throw new \Exception('The chart type provided could not be rendered.');
        }
        // Write X axis?
        if ($chartType->hasAxisX()) {
            $this->writeAxis($objWriter, $subject->getAxisX(), Chart\Axis::AXIS_X);
        }
        // Write Y axis?
        if ($chartType->hasAxisY()) {
            $this->writeAxis($objWriter, $subject->getAxisY(), Chart\Axis::AXIS_Y);
        }
        $objWriter->endElement();
    }