echarts/src/component/visualMap/typeDefaulter.js

A powerful charting and visualization library for browser

import Component from '../../model/Component';

Component.registerSubTypeDefaulter('visualMap', function (option) {
    // Compatible with ec2, when splitNumber === 0, continuous visualMap will be used.
    return (
            !option.categories
            && (
                !(
                    option.pieces
                        ? option.pieces.length > 0
                        : option.splitNumber > 0
                )
                || option.calculable
            )
        )
        ? 'continuous' : 'piecewise';
});