Method count

src/scale/Ordinal.ts:325–328

* NOTICE: This is different from `.getOrdinalMeta().length` when extent * is specified by `xxxAxis.min/max` or by `dataZoom`.

()

     * is specified by `xxxAxis.min/max` or by `dataZoom`.
     */
    count(): number {
        const extent = getScaleExtentForTickUnsafe(this._mapper);
        return extent[1] - extent[0] + 1;
    }

    getOrdinalMeta(): OrdinalMeta {
        return this._ordinalMeta;