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

    public function writeChart(Chart $chart)
    {
        // Create XML writer
        $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
        // XML header
        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
        // c:chartSpace
        $objWriter->startElement('c:chartSpace');
        $objWriter->writeAttribute('xmlns:c', 'http://schemas.openxmlformats.org/drawingml/2006/chart');
        $objWriter->writeAttribute('xmlns:a', 'http://schemas.openxmlformats.org/drawingml/2006/main');
        $objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');
        // c:date1904
        $objWriter->startElement('c:date1904');
        $objWriter->writeAttribute('val', '1');
        $objWriter->endElement();
        // c:lang
        $objWriter->startElement('c:lang');
        $objWriter->writeAttribute('val', 'en-US');
        $objWriter->endElement();
        // c:chart
        $objWriter->startElement('c:chart');
        // Title?
        if ($chart->getTitle()->isVisible()) {
            // Write title
            $this->writeTitle($objWriter, $chart->getTitle());
        }
        // c:autoTitleDeleted
        $objWriter->startElement('c:autoTitleDeleted');
        $objWriter->writeAttribute('val', $chart->getTitle()->isVisible() ? '0' : '1');
        $objWriter->endElement();
        // c:view3D
        $objWriter->startElement('c:view3D');
        // c:rotX
        $objWriter->startElement('c:rotX');
        $objWriter->writeAttribute('val', $chart->getView3D()->getRotationX());
        $objWriter->endElement();
        // c:hPercent
        $objWriter->startElement('c:hPercent');
        $objWriter->writeAttribute('val', $chart->getView3D()->getHeightPercent());
        $objWriter->endElement();
        // c:rotY
        $objWriter->startElement('c:rotY');
        $objWriter->writeAttribute('val', $chart->getView3D()->getRotationY());
        $objWriter->endElement();
        // c:depthPercent
        $objWriter->startElement('c:depthPercent');
        $objWriter->writeAttribute('val', $chart->getView3D()->getDepthPercent());
        $objWriter->endElement();
        // c:rAngAx
        $objWriter->startElement('c:rAngAx');
        $objWriter->writeAttribute('val', $chart->getView3D()->hasRightAngleAxes() ? '1' : '0');
        $objWriter->endElement();
        // c:perspective
        $objWriter->startElement('c:perspective');
        $objWriter->writeAttribute('val', $chart->getView3D()->getPerspective());
        $objWriter->endElement();
        $objWriter->endElement();
        // Write plot area
        $this->writePlotArea($objWriter, $chart->getPlotArea(), $chart);
        // Legend?
        if ($chart->getLegend()->isVisible()) {
            // Write legend
            $this->writeLegend($objWriter, $chart->getLegend());
        }
        // c:plotVisOnly
        $objWriter->startElement('c:plotVisOnly');
        $objWriter->writeAttribute('val', '1');
        $objWriter->endElement();
        $objWriter->endElement();
        // c:spPr
        $objWriter->startElement('c:spPr');
        // Fill
        $this->writeFill($objWriter, $chart->getFill());
        // Border
        if ($chart->getBorder()->getLineStyle() != Border::LINE_NONE) {
            $this->writeBorder($objWriter, $chart->getBorder(), '');
        }
        // Shadow
        if ($chart->getShadow()->isVisible()) {
            // a:effectLst
            $objWriter->startElement('a:effectLst');
            // a:outerShdw
            $objWriter->startElement('a:outerShdw');
            $objWriter->writeAttribute('blurRad', CommonDrawing::pixelsToEmu($chart->getShadow()->getBlurRadius()));
            $objWriter->writeAttribute('dist', CommonDrawing::pixelsToEmu($chart->getShadow()->getDistance()));
            $objWriter->writeAttribute('dir', CommonDrawing::degreesToAngle($chart->getShadow()->getDirection()));
            $objWriter->writeAttribute('algn', $chart->getShadow()->getAlignment());
            $objWriter->writeAttribute('rotWithShape', '0');
            $this->writeColor($objWriter, $chart->getShadow()->getColor(), $chart->getShadow()->getAlpha());
            $objWriter->endElement();
            $objWriter->endElement();
        }
        $objWriter->endElement();
        // External data?
        if ($chart->hasIncludedSpreadsheet()) {
            // c:externalData
            $objWriter->startElement('c:externalData');
            $objWriter->writeAttribute('r:id', 'rId1');
            // c:autoUpdate
            $objWriter->startElement('c:autoUpdate');
            $objWriter->writeAttribute('val', '0');
            $objWriter->endElement();
            $objWriter->endElement();
        }
        $objWriter->endElement();
        // Return
        return $objWriter->getData();
    }