category | axisPointer label should not show | legend tooltip | axis name tooltip on 1st grid
        
        global-axis-pointer-style | axisPointer label should not show
        
        cross compatible | tooltip.trigger: 'item' | yAxis pointer precision 3 | crossStyle set | xAxisPointer label show
        
        cross compatible | tooltip.trigger: 'axis' | xAxisPointer label not show
        
        tooltip.axisPointer.axis is 'y' | auto snap | auto animation when snap
        
        showDelay: 50 | enterable | dynamic callback
        
        set position
        
        confine
        
        triggerOn click
        
        dispatchAciton manually with `position` specified (postion: [10,10])