Function registerVisual

libs/echarts/echarts-en.simple.js:29396–29398

* @param {number} [priority=3000] * @param {module:echarts/stream/Task} visualTask

(priority, visualTask)

 * @param {module:echarts/stream/Task} visualTask
 */
function registerVisual(priority, visualTask) {
    normalizeRegister(visualFuncs, priority, visualTask, PRIORITY_VISUAL_CHART, 'visual');
}

/**
 * @param {Object|Function} fn: {seriesType, createOnAllSeries, performRawSeries, reset}