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echarts,xAxis类型为time时,boundaryGap坐标轴两边留白策略设置无效:报错

"

echarts官网的api中有这么一段:
xAxis.boundaryGap
坐标轴两边留白策略,类目轴和非类目轴的设置和表现不一样。
类目轴中 boundaryGap 可以配置为 true 和 false。默认为 true,这时候刻度只是作为分隔线,标签和数据点都会在两个刻度之间的带(band)中间。
非类目轴,包括时间,数值,对数轴,boundaryGap是一个两个值的数组,分别表示数据最小值和最大值的延伸范围,可以直接设置数值或者相对的百分比,在设置 min 和 max 后无效。 示例:
boundaryGap: ['20%', '20%']

可是为什么x轴的type:time类型时候就无效呢???

源码如下:

option = {
  	"title":{"text":"玩家充值","link":"javascript: void(0)","target":"self","subtext":"单位:元","x":"left"},
			 toolbox: {
				show: true,
				orient:'vertical',
				right:'25',
				feature: {
					magicType: {
						 type: ['line', 'bar', 'stack', 'tiled']	//折线与柱形转化
						
					},
					//dataView: {},				//数据视图
					restore: {},				//还原
					saveAsImage: {}				//保存为图片
				}
			},
			"tooltip":{"trigger":"axis","axisPointer":{"type":"line"},formatter:''},
			"legend":{
				"left":"center",
				"data":["捕鱼","斗地主","牛牛"] 
				},
			"grid":{"left":"3%","right":"4%","bottom":"3%","containLabel":true},
			"xAxis":{"type":"time",
					 "boundaryGap":['20%', '20%']
					},
			"yAxis":{"type":"value"},
			"series":[
				{"name":"斗地主","type":"bar","stack":"总量","data":[["2017-12-04 00:00:00",130.888],["2017-12-05 00:00:00",380.3698],["2017-12-06 00:00:00",320],["2017-12-07 00:00:00",320]]},
				{"name":"捕鱼","type":"bar","stack":"总量","data":[["2017-12-04 00:00:00",125],["2017-12-05 00:00:00",410],["2017-12-06 00:00:00",520],["2017-12-07 00:00:00",320]]},
				{"name":"牛牛","type":"bar","stack":"总量","data":[["2017-12-04 00:00:00",275],["2017-12-05 00:00:00",220],["2017-12-06 00:00:00",498],["2017-12-07 00:00:00",320]]}]
};

显示结果如下:

两边并没有留白?
求大佬赐教,跪谢。

"

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kun坤 2020-06-08 11:12:06 4003 0
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  • "

    非类目轴,包括时间,数值,对数轴,boundaryGap是一个两个值的数组,分别表示数据最小值和最大值的延伸范围,可以直接设置数值或者相对的百分比,在设置 <a href=""https://www.echartsjs.com/zh/option.html#xAxis.min"">min 和 <a href=""https://www.echartsjs.com/zh/option.html#xAxis.max"">max 后无效。

    当设置成 function 形式时,可以根据计算得出的数据最大最小值设定坐标轴的最小值。如:

    min: function(value) {
        return value.min - 20;
    }

    其中 value 是一个包含 min 和 max 的对象,分别表示数据的最大最小值,这个函数应该返回坐标轴的最小值。

    设置个最小值

    ######

    添加:boundaryGap: true,

    xAxis: {
           
     .......    
     boundaryGap: true,
    
     ......
     },
    

     

    ######

    楼主的代码,在我这里运行,没有发生楼主所展示的现象, "boundaryGap":['20%', '20%'] 有效,结果正常。注意:

    1.   我引进的 echarts.min.js 取自这个网址: 

    https://cdn.jsdelivr.net/npm/echarts/dist/echarts.min.js

    2.   我预先限定了 id = “main” 的 html元素  <div> 的宽和高。

    <html>
    <head>
        <meta charset="utf-8">
        <title>ECharts</title>
         <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts/dist/echarts.min.js"></script>
    </head>
    <body>
        <div id="main" style="width: 600px;height:400px;"></div>
        <script type="text/javascript">
            var myChart = echarts.init(document.getElementById('main'));
          option = {
      	"title":{"text":"玩家充值","link":"javascript: void(0)","target":"self","subtext":"单位:元","x":"left"},
    			 toolbox: {
    				show: true,
    				orient:'vertical',
    				right:'25',
    				feature: {
    					magicType: {
    						 type: ['line', 'bar', 'stack', 'tiled']	
    						
    					},
    					restore: {},			
    					saveAsImage: {}			
    				}
    			},
    			"tooltip":{"trigger":"axis","axisPointer":{"type":"line"},formatter:''},
    			"legend":{
    				"left":"center",
    				"data":["捕鱼","斗地主","牛牛"] 
    				},
    			"grid":{"left":"3%","right":"4%","bottom":"3%","containLabel":true},
    			"xAxis":{"type":"time",
    					 "boundaryGap":['20%', '20%']
    					},
    			"yAxis":{"type":"value"},
    			"series":[
    				{"name":"斗地主","type":"bar","stack":"总量","data":[["2017-12-04 00:00:00",130.888],["2017-12-05 00:00:00",380.3698],["2017-12-06 00:00:00",320],["2017-12-07 00:00:00",320]]},
    				{"name":"捕鱼","type":"bar","stack":"总量","data":[["2017-12-04 00:00:00",125],["2017-12-05 00:00:00",410],["2017-12-06 00:00:00",520],["2017-12-07 00:00:00",320]]},
    				{"name":"牛牛","type":"bar","stack":"总量","data":[["2017-12-04 00:00:00",275],["2017-12-05 00:00:00",220],["2017-12-06 00:00:00",498],["2017-12-07 00:00:00",320]]}]
    };
    
            myChart.setOption(option);
        </script>
    </body>
    </html>

     

    "
    2020-06-10 09:35:12
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