inconsistencies between yAxis.axisLabel and yAxis.axisPointer.label formatters

[astik]

inconsistencies between yAxis.axisLabel and yAxis.axisPointer.label formatters with string configuration (interpolation seems to give different results)

Version & Environment [版本及环境]

• ECharts version [ECharts 版本]: 4.x
• Browser version [浏览器类型和版本]: tested with chrome 66.0.3359.139 and firefox 59.0.2, but i don't think it matters
• OS Version [操作系统类型和版本]: tested with osx 10.13.3, but i don't think it matters

Expected behaviour [期望结果]

Formatter with same configuration should give the same result for both labels (yAxis.axisLabel and yAxis.axisPointer.label).

ECharts option [ECharts配置项]

option = {
    tooltip: {
        trigger: 'axis',
			axisPointer: {
				type: 'cross'
			}
    },
    xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    yAxis: {
        type: 'value',
        axisLabel: {
            formatter: '{value}'
        },
        axisPointer: {
            label:{
                formatter: '{value}'
            }
        }
    },
    series: [
        {
            name:'A',
            type:'line',
            data:[120000.5, 132000.5, 101000.5, 134000.5, 90000.5, 230000.5, 210000.5]
        },
        {
            name:'B',
            type:'line',
            data:[220000.5, 282000.5, 201000.5, 234000.5, 290000.5, 430000.5, 410000.5]
        }
    ]
};

With this configuration, you'll end-up with :

• yAxis.axisLabel will display "120000.5" for 120000.5
• yAxis.axisPointer.label will display "120,000.5" for 120000.5

To get a consistent display, you'll need to have this configuration :

option = {
    tooltip: {
        trigger: 'axis',
	axisPointer: {
		type: 'cross',
        },
        formatter: function formatArrayValue(value) {
            var result = value.map(function(v){
                return `${v.marker} ${v.seriesName} : ${v.value}`
            })
            return `${value[0].name}<br />${result.join('<br />')}`
        }
    },
    xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    yAxis: {
        type: 'value',
        axisLabel: {
            formatter: '{value}'
        },
        axisPointer: {
            label:{
                formatter: function(a){return a.value}
            }
        }
    },
    series: [
        {
            name:'A',
            type:'line',
            data:[120000.5, 132000.5, 101000.5, 134000.5, 90000.5, 230000.5, 210000.5]
        },
        {
            name:'B',
            type:'line',
            data:[220000.5, 282000.5, 201000.5, 234000.5, 290000.5, 430000.5, 410000.5]
        }
    ]
};

[stale]

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