tip: {
                            trigger: 'axis',
                            axisPointer: {
                                type: 'cross'
                            }
                        }
                    },
                    yAxis: {name: 'tooltip.trigger: "axis"\nso base axis snap and animate by default'}
                }, true);
                baseTop += height + gap;
                makeValueGrid(option, {
                    grid: {
                        top: baseTop, height: height
 