Function getOptionCategoryInterval

libs/echarts/echarts-en.simple.js:37959–37962

* @param {module:echarts/src/model/Model} model axisLabelModel or axisTickModel * @return {number|String} Can be null|'auto'|number|function

(model)

 * @return {number|String} Can be null|'auto'|number|function
 */
function getOptionCategoryInterval(model) {
    var interval = model.get('interval');
    return interval == null ? 'auto' : interval;
}

/**
 * Set `categoryInterval` as 0 implicitly indicates that