zoukankan      html  css  js  c++  java
  • echarts3相关的各种定制化

      在我刚把项目中的echarts从2.x版本升级到echarts3.x,折腾老久,终于交付了项目的时候,echarts4又出来了,先不管,还是把我echarts3.x遇到的和formatter相关的问题总结一下。

      1. 第一种情况是折线图或者柱状图的纵坐标:当纵坐标都是0的时候,此时echarts默认的纵坐标是从0到1等分,但是实际场景中可能我们的纵坐标永远是整数,这时候就有点不妥了,如图所示。此时的option为:

    option = {
        xAxis: {
            type: 'category',
            data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
        },
        yAxis: {
            type: 'value'
        },
        series: [{
            data: [0, 0, 0, 0, 0, 0, 0],
            type: 'line'
        }]
    };

                                                                                                

         此时需要用到的是echarts的minInterval和max属性,设置纵坐标的间隔为单位长度1,且最大值为5,当然也要兼容值不是全为0的情况。具体配置如下。若要只是如右上图所示,加个单位的话,emmm,formatter加个单位。

    yAxis: {
                    axisLine: {
                        show: false
                    },
                    axisTick: {
                        show: false
                    },
                    // axisLabel: {
                    //     formatter: '{value} kg'
                    // },
                    minInterval: 1,
                    max: Math.max.apply(null,value)<=5?5:null
                },

      2.第二种情况是折线图或柱状图的横坐标:①横坐标过长可以设置成截取前几个字符再加上...的形式,如果不是超级长,可以设置成几个字符换一行;②当浏览器缩放时不能放下所有的横坐标时。如图所示。此时option配置如下:

    option = {
        xAxis: {
            type: 'category',
            axisLabel: {
                margin: 2,
                show: true,
                interval: 0
            },
            data: ['超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标2', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标3', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标4', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标5', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标6', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标7']
        },
        yAxis: {
            axisLine: {
                show: false
            },
            axisTick: {
                show: false
            },
            // axisLabel: {
            //     formatter: '{value} kg'
            // },
            minInterval: 1,
            max: Math.max.apply(null,value)<=5?5:null
                },
        series: [{
            data: [0, 0, 0, 0, 0, 0, 0],
            type: 'line'
        }]
    };

                                                                                                

      此时,需要用到xAxis的axisLabel的formatter,其实后面的几种情况都大同小异,找到对应的要格式化的文本,然后使用formatter,然后是处理字节还是处理字符长度按需选择嘛,效果如右上图,option修改部分如下:

    axisLabel: {
                show: true,
                //interval: 0
                formatter:function(val){
                            var re = '';
                            var length = val.length;
                            var bytes = 0;
                            for (var i = 0; i < length; i++) {
                                var code = val.charCodeAt(i);
                                bytes += code < 256 ? 1 : 2;
                                if (bytes > 16) {
                                    re += '...';
                                    break;
                                } else {
                                    re += val[i];
                                }
                            }
                            return re;
                        }
            },

      3.当折线图和柱状图的横纵坐标都合格的情况下,比如横坐标很略以后,如果还是想看完整的横坐标内容怎么办?这时候就使用到tooltip了,此处先讨论全局的tooltip,如图所示,超出画布的tooltip,瞬间被测试部的小姐姐提单了

     1 option = {
     2     tooltip: {
     3         trigger: 'axis',
     4         axisPointer: {
     5             type: 'shadow'
     6         },
     7 
     8         show: true,
     9         borderColor: '#ccc',
    10         borderWidth: 1
    11     },
    12     xAxis: {
    13         type: 'category',
    14         
    15         axisLabel: {
    16             show: true,
    17             //interval: 0
    18             formatter:function(val){
    19                         var re = '';
    20                         var length = val.length;
    21                         var bytes = 0;
    22                         for (var i = 0; i < length; i++) {
    23                             var code = val.charCodeAt(i);
    24                             bytes += code < 256 ? 1 : 2;
    25                             if (bytes > 16) {
    26                                 re += '...';
    27                                 break;
    28                             } else {
    29                                 re += val[i];
    30                             }
    31                         }
    32                         return re;
    33                     }
    34         },
    35         data: ['超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标2', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标3', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标4', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标5', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标6', '超级长的横坐标超级长的横坐标超级长的横坐标超级长的横坐标7']
    36     },
    37     yAxis: {
    38         axisLine: {
    39             show: false
    40         },
    41         axisTick: {
    42             show: false
    43         },
    44         // axisLabel: {
    45         //     formatter: '{value} kg'
    46         // },
    47         minInterval: 1,
    48         max: Math.max.apply(null,value)<=5?5:null
    49             },
    50     series: [{
    51         data: [0, 0, 0, 0, 0, 0, 0],
    52         type: 'line'
    53     }]
    54 };
    View Code

     

      此时使用到tooltip的position属性,定位到角落里,不设置也行,跟随鼠标移动tooltip,在formatter函数里设置换行,啊哈哈,小圆点是宝宝用css做的,巨丑,忍受一下哈,配置参数如下:

     1 tooltip: {
     2         trigger: 'axis',
     3         axisPointer: {
     4         },
     5         borderWidth: 1,
     6         borderColor: '#ccc',
     7         padding: 10,
     8         textStyle: {
     9             color: '#fff'
    10         },
    11         position: function (pos, params, el, elRect, size) {
    12             var obj = {top: 10};
    13             obj[['left', 'right'][+(pos[0] < size.viewSize[0] / 2)]] = 30;
    14             return obj;
    15         },
    16         extraCssText: ' 170px',
    17         formatter: function(param){
    18             param = param[0];
    19             var re = '';
    20             var length = param.name.length;
    21             var bytes = 0;
    22             for (var i = 0; i < length; i++) {
    23                 var code = param.name.charCodeAt(i);
    24                 bytes += code < 256 ? 1 : 2;
    25                 if (bytes && bytes % 20 === 0) {
    26                     re += '<br />';
    27                 } else {
    28                     re += param.name[i];
    29                 }
    30             }
    31             return [
    32                 re + '<br/>',
    33                 '<span style="10px;height:10px;border-radius:5px;background-color: #158cba;display:inline-block;margin-right:5px;"></span>' + param.data + '<br/>'
    34             ].join('');
    35         }
    36     },
    View Code

      4.第四种情况是用在饼图中,legend里设置图例的显示和ltooltip,以及series里label的formatter,伟岸的UI给我设计了南丁格尔玫瑰图来显示数据TOP10,对,设计稿里巨漂亮,但那也是在完美的数据情况下啊!!测试部的小姐姐们都是从零开始建数据的哇,导致各种奇葩的图表出来。暴走的宝宝配置了如下的南丁格尔玫瑰图数据:

     1 option = {
     2     tooltip : {
     3         trigger: 'item',
     4         formatter: "{a} <br/>{b} : {c} ({d}%)"
     5     },
     6     legend: {
     7         orient: 'vertical',
     8         left:'0',
     9         itemGap:5,
    10         icon: 'circle',
    11         data:['rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1','rose2rose2rose2rose2rose2rose2','rose3rose3rose3rose3rose3','rose4rose4rose4rose4rose4','rose5','rose6','rose7','rose8']
    12     },
    13     color: ['rgba(13,136,252,1)', 'rgba(13,136,252,.9)', 'rgba(13,136,252,.8)', 'rgba(13,136,252,.7)', 'rgba(13,136,252,.6)', 'rgba(13,136,252,.5)', 'rgba(13,136,252,.4)', 'rgba(13,136,252,.3)', 'rgba(13,136,252,.2)', 'rgba(13,136,252,.1)'],
    14     calculable : true,
    15     series : [
    16         {
    17             name:'面积模式',
    18             type:'pie',
    19             radius : [0, 110],
    20             center : ['50%', '50%'],
    21             roseType : 'area',
    22             label: {
    23                 normal: {
    24                     show: false,
    25                     // formatter:function(params){
    26                     //     return params.name.length > 5 ? params.name.slice(0,5) + '...' : params.name;
    27                     // }
    28                 },
    29                 emphasis: {
    30                     show: true
    31                 }
    32             },
    33             data:[
    34                 {value:5, name:'rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1'},
    35                 {value:10, name:'rose2rose2rose2rose2rose2rose2'},
    36                 {value:15, name:'rose3rose3rose3rose3rose3'},
    37                 {value:20, name:'rose4rose4rose4rose4rose4'},
    38                 {value:25, name:'rose5'},
    39                 {value:30, name:'rose6'},
    40                 {value:35, name:'rose7'},
    41                 {value:40, name:'rose8'}
    42             ]
    43         }
    44     ]
    45 };
    View Code

            

    大同小异的formatter,但是,emmmm,记得legend也是 有tooltip和formatter的。至此,宝宝的定制化结束啦,不知道为啥,一点都不想再做这个了,orz....

     1 var dataOne = ['rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1','rose2rose2rose2rose2rose2rose2','rose3rose3rose3rose3rose3','rose4rose4rose4rose4rose4','rose5','rose6','rose7','rose8'];
     2 var dataTwo = [5,10,15,20,25,30,35,40];
     3 option = {
     4     tooltip: {
     5                 trigger: 'item',
     6                 //formatter: "{a} <br/>{b} : {c} ({d}%)"
     7                 formatter: function(params){
     8                     //console.log(name);
     9                     var re = '';
    10                     var length = params.name.length;
    11                     for (var i = 0, j = 1; i < length; i++,j++) {
    12                         if (j && j % 20 === 0) {
    13                             re += '<br />';
    14                         } else {
    15                             re += params.name[i];
    16                         }
    17                     }
    18                     if (params.data.show) {
    19                         return "无";
    20                     }
    21                     return params.seriesName+'<br/>'+'图例:<br/>'+re+'<br/>'+'数量:<br/>'+params.value;
    22                 }
    23             },
    24     legend: {
    25         orient: 'vertical',
    26         left:'0',
    27         itemGap:5,
    28         icon: 'circle',
    29         
    30         data:['rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1','rose2rose2rose2rose2rose2rose2','rose3rose3rose3rose3rose3','rose4rose4rose4rose4rose4','rose5','rose6','rose7','rose8'],
    31     
    32         tooltip: {
    33             show: true,
    34             formatter: function (params) {
    35                 var re = '';
    36                 var length = params.name.length;
    37                 var bytes = 0;
    38                 for (var i = 0; i < length; i++) {
    39                     var code = params.name.charCodeAt(i);
    40                     bytes += code < 256 ? 1 : 2;
    41                     if (bytes && bytes % 20 === 0) {
    42                         re += '<br />';
    43                     } else {
    44                         re += params.name[i];
    45                     }
    46                 }
    47                 return re;
    48             },
    49         },
    50         formatter: function(name) {
    51             var index = 0;
    52             dataOne.forEach(function(value,i){
    53                 if(value == name){
    54                     index = i;
    55                     name = name.length > 8 ? name.slice(0,8) + '...' : name;
    56                 }
    57             });
    58             return name + " - " + dataTwo[index];
    59         }
    60     },
    61     color: ['rgba(13,136,252,1)', 'rgba(13,136,252,.9)', 'rgba(13,136,252,.8)', 'rgba(13,136,252,.7)', 'rgba(13,136,252,.6)', 'rgba(13,136,252,.5)', 'rgba(13,136,252,.4)', 'rgba(13,136,252,.3)', 'rgba(13,136,252,.2)', 'rgba(13,136,252,.1)'],
    62     calculable : true,
    63     series : [
    64         {
    65             name:'面积模式',
    66             type:'pie',
    67             radius : [0, 110],
    68             center : ['50%', '50%'],
    69             roseType : 'area',
    70             label: {
    71                 normal: {
    72                     show: false,
    73                     formatter:function(params){
    74                         return params.name.length > 5 ? params.name.slice(0,5) + '...' : params.name;
    75                     }
    76                 },
    77                 emphasis: {
    78                     show: true
    79                 }
    80             },
    81             data:[
    82                 {value:5, name:'rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1rose1'},
    83                 {value:10, name:'rose2rose2rose2rose2rose2rose2'},
    84                 {value:15, name:'rose3rose3rose3rose3rose3'},
    85                 {value:20, name:'rose4rose4rose4rose4rose4'},
    86                 {value:25, name:'rose5'},
    87                 {value:30, name:'rose6'},
    88                 {value:35, name:'rose7'},
    89                 {value:40, name:'rose8'}
    90             ]
    91         }
    92     ]
    93 };
    View Code
  • 相关阅读:
    CS231n 学习笔记(1) Image CLassification
    caffe-winsows封装成dll
    Nuget安装程序包源
    PCA降维demo
    AI方面的国际会议
    caffe solver
    caffe数据层
    一些有意思的技术博客
    js cookie 设置
    knockout.validation.js 异步校验
  • 原文地址:https://www.cnblogs.com/mini-fan/p/8409542.html
Copyright © 2011-2022 走看看