PHPOffice / PhpSpreadsheet

        $objWriter->startElement('c:scaling');

        if (!is_null($xAxis->getAxisOptionsProperty('maximum'))) {

            $objWriter->startElement('c:max');

            $objWriter->writeAttribute('val', $xAxis->getAxisOptionsProperty('maximum'));

            $objWriter->endElement();

        }

        if (!is_null($xAxis->getAxisOptionsProperty('minimum'))) {

            $objWriter->startElement('c:min');

            $objWriter->endElement();

        }

        if (!is_null($xAxis->getAxisOptionsProperty('minimum'))) {

            $objWriter->startElement('c:min');

            $objWriter->writeAttribute('val', $xAxis->getAxisOptionsProperty('minimum'));

            $objWriter->endElement();

        }

        $objWriter->startElement('c:orientation');

        $objWriter->writeAttribute('val', $xAxis->getAxisOptionsProperty('orientation'));

            $objWriter->endElement(); //end shadow

        }

        if (!is_null($majorGridlines->getSoftEdgesSize())) {

            $objWriter->startElement('a:softEdge');

            $objWriter->writeAttribute('rad', $majorGridlines->getSoftEdgesSize());

            $objWriter->endElement(); //end softEdge

        }

        $objWriter->endElement(); //end effectLst

        $objWriter->endElement(); //end spPr

                $objWriter->endElement(); //end shadow

            }

            if (!is_null($minorGridlines->getSoftEdgesSize())) {

                $objWriter->startElement('a:softEdge');

                $objWriter->writeAttribute('rad', $minorGridlines->getSoftEdgesSize());

                $objWriter->endElement(); //end softEdge

            }

            $objWriter->endElement(); //end effectLst

            $objWriter->endElement(); //end spPr

            $objWriter->endElement();

        }

        if (!is_null($xAxis->getSoftEdgesSize())) {

            $objWriter->startElement('a:softEdge');

            $objWriter->writeAttribute('rad', $xAxis->getSoftEdgesSize());

            $objWriter->endElement();

        }

        $objWriter->endElement(); //effectList

        $objWriter->endElement(); //end spPr

            $objWriter->writeAttribute('val', 'midCat');

            $objWriter->endElement();

            if (!is_null($xAxis->getAxisOptionsProperty('major_unit'))) {

                $objWriter->startElement('c:majorUnit');

                $objWriter->writeAttribute('val', $xAxis->getAxisOptionsProperty('major_unit'));

                $objWriter->endElement();

            }

            if (!is_null($xAxis->getAxisOptionsProperty('minor_unit'))) {

                $objWriter->startElement('c:minorUnit');

                $objWriter->endElement();

            }

            if (!is_null($xAxis->getAxisOptionsProperty('minor_unit'))) {

                $objWriter->startElement('c:minorUnit');

                $objWriter->writeAttribute('val', $xAxis->getAxisOptionsProperty('minor_unit'));

                $objWriter->endElement();

            }

        }

        if ($isMultiLevelSeries) {

            $objWriter->endElement();

        }

        if (!is_null($plotGroup->getPlotGrouping())) {

            $plotGroupingType = $plotGroup->getPlotGrouping();

            $objWriter->startElement('c:grouping');

            $objWriter->writeAttribute('val', $plotGroupingType);

            $objWriter->endElement();

        }

        //    Get these details before the loop, because we can use the count to check for varyColors

        $plotSeriesOrder = $plotGroup->getPlotOrder();

                $catIsMultiLevelSeries = $catIsMultiLevelSeries || $plotSeriesCategory->isMultiLevelSeries();

                if (($groupType == DataSeries::TYPE_PIECHART) || ($groupType == DataSeries::TYPE_PIECHART_3D) || ($groupType == DataSeries::TYPE_DONUTCHART)) {

                    if (!is_null($plotGroup->getPlotStyle())) {

                        $plotStyle = $plotGroup->getPlotStyle();

                        if ($plotStyle) {

                            $objWriter->startElement('c:explosion');

                            $objWriter->writeAttribute('val', 25);

                            $objWriter->endElement();

                        }

                    }

                }

                if (($groupType === DataSeries::TYPE_BUBBLECHART) || ($groupType === DataSeries::TYPE_SCATTERCHART)) {