Method getVisualMeta

src/component/visualMap/VisualMapModel.ts:660–662

* FIXME * Do not publish to thirt-part-dev temporarily * util the interface is stable. (Should it return * a function but not visual meta?) * * @pubilc * @abstract * @param getColorVisual * params: value, valueState * return: color * @r

(getColorVisual: (value: number, valueState: VisualState) => string)

     *        outerColor means [colorBeyondMinValue, colorBeyondMaxValue]
     */
    getVisualMeta(getColorVisual: (value: number, valueState: VisualState) => string): VisualMeta {
        return null;
    }


    static defaultOption: VisualMapOption = {