"
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。
"
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>
" ![image.png](https://ucc.alicdn.com/pic/developer-ecology/7b8fa9a030484a1a915c1fa70a12bd6e.png)
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