折线图，area面积区域填充色的时候，origin配置start的时候，是否可以从折线的开启面积区域的折线图最小值开始填充

[wqzwh]

Version

4.9.0

Steps to reproduce

What is expected?

期望从开启面积区域的折线图的最小值开始填充颜色

What is actually happening?

默认按照官网的设置，会出现填充区域超出，不准确的问题

option = {
    title: {
        text: '堆叠区域图'
    },
    tooltip: {
        trigger: 'axis',
        axisPointer: {
            type: 'cross',
            label: {
                backgroundColor: '#6a7985'
            }
        }
    },
    legend: {
        data: ['今日值', 'up', 'low']
    },
    toolbox: {
        feature: {
            saveAsImage: {}
        }
    },
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
    xAxis: [
        {
            type: 'category',
            boundaryGap: false,
            data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
        }
    ],
    yAxis: [
        {
            type: 'value',
  
        }
    ],
    series: [
        {
            name: 'low',
            type: 'line',
            stack: '总量',
            areaStyle: {
                color: 'transparent'
            },
            data: [-150, 132, 101, 154, 190, 130, 110]
        },
        {
            name: 'up',
            type: 'line',
            stack: '总量',
            areaStyle: {
                color: '',
                origin: 'start'
            },
            data: [220, 182, 191, 234, 290, 330, 310]
        },
        
    ]
};

[echarts-bot]

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[susiwen8]

Related to #9317