plugins/ImageGraph/StaticGraph/VerticalBar.php

<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

namespace Piwik\Plugins\ImageGraph\StaticGraph;

class VerticalBar extends GridGraph
{
    public const INTERLEAVE = 0.10;

    public function renderGraph()
    {
        $this->initGridChart(
            $displayVerticalGridLines = false,
            $bulletType = LEGEND_FAMILY_BOX,
            $horizontalGraph = false,
            $showTicks = true,
            $verticalLegend = false
        );

        $this->pImage->drawBarChart(
            array(
                 'Interleave' => self::INTERLEAVE,
            )
        );
    }
}