Not enable axisPointer animation when category band is small
Not enable axisPointer animation when category band is small

100star/echarts,chenfwind/echarts,starlkj/echarts,ecomfe/echarts,ecomfe/echarts,starlkj/echarts,apache/incubator-echarts,chenfwind/echarts,starlkj/echarts,apache/incubator-echarts,100star/echarts