plugins/ImageGraph/StaticGraph/Evolution.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 Evolution extends GridGraph
{
    public function renderGraph()
    {
        $this->initGridChart(
            $displayVerticalGridLines = true,
            $bulletType = LEGEND_FAMILY_LINE,
            $horizontalGraph = false,
            $showTicks = true,
            $verticalLegend = true
        );

        $this->pImage->drawLineChart();
    }
}