1. 程式人生 > 實用技巧 >echarts markPoint在極座標散點圖中不顯示value值

echarts markPoint在極座標散點圖中不顯示value值

在echarts - 散點圖中(type: 'scatter')

試了在直角座標系上的x,y, 沒有問題

如圖:

問題:

在極座標系上的radius,angle,可以顯示出標註,但是標註中的value值顯示不出來,也不報錯。

也試過直接把coord直接變成下面這樣,直接指定他的極座標,但依然顯示不出來value,效果和上圖一樣
  angleAxis:'11p',
  radiusAxis:'Sunday',

在https://gallery.echartsjs.com/的例子裡試過可以出來,但是資料是實際data的數值,而不是 自己指定的value

最終解決寫法:

var hours = ['12a', '1a', '2a', '3a', '4a', '5a', '6a',
        '7a', '8a', '9a','10a','11a',
        '12p', '1p', '2p', '3p', '4p', '5p',
        '6p', '7p', '8p', '9p', '10p', '11p'];
var days = ['Saturday', 'Friday', 'Thursday',
        'Wednesday', 'Tuesday', 'Monday', 'Sunday'];

var data = [[0,0
,5],[0,1,1],[0,2,0],[0,3,0],[0,4,0],[0,5,0],[0,6,0],[0,7,0],[0,8,0],[0,9,0],[0,10,0],[0,11,2],[0,12,4],[0,13,1],[0,14,1],[0,15,3],[0,16,4],[0,17,6],[0,18,4],[0,19,4],[0,20,3],[0,21,3],[0,22,2],[0,23,5],[1,0,7],[1,1,0],[1,2,0],[1,3,0],[1,4,0],[1,5,0],[1,6,0],[1,7,0],[1,8,0],[1,9,0],[1,10,5],[1,11,2],[1,12,2],[1,13,6],[1,14,9],[1,15,11],[1,16,6],[1
,17,7],[1,18,8],[1,19,12],[1,20,5],[1,21,5],[1,22,7],[1,23,2],[2,0,1],[2,1,1],[2,2,0],[2,3,0],[2,4,0],[2,5,0],[2,6,0],[2,7,0],[2,8,0],[2,9,0],[2,10,3],[2,11,2],[2,12,1],[2,13,9],[2,14,8],[2,15,10],[2,16,6],[2,17,5],[2,18,5],[2,19,5],[2,20,7],[2,21,4],[2,22,2],[2,23,4],[3,0,7],[3,1,3],[3,2,0],[3,3,0],[3,4,0],[3,5,0],[3,6,0],[3,7,0],[3,8,1],[3,9,0],[3,10,5],[3,11,4],[3,12,7],[3,13,14],[3,14,13],[3,15,12],[3,16,9],[3,17,5],[3,18,5],[3,19,10],[3,20,6],[3,21,4],[3,22,4],[3,23,1],[4,0,1],[4,1,3],[4,2,0],[4,3,0],[4,4,0],[4,5,1],[4,6,0],[4,7,0],[4,8,0],[4,9,2],[4,10,4],[4,11,4],[4,12,2],[4,13,4],[4,14,4],[4,15,14],[4,16,12],[4,17,1],[4,18,8],[4,19,5],[4,20,3],[4,21,7],[4,22,3],[4,23,0],[5,0,2],[5,1,1],[5,2,0],[5,3,3],[5,4,0],[5,5,0],[5,6,0],[5,7,0],[5,8,2],[5,9,0],[5,10,4],[5,11,1],[5,12,5],[5,13,10],[5,14,5],[5,15,7],[5,16,11],[5,17,6],[5,18,0],[5,19,5],[5,20,3],[5,21,4],[5,22,2],[5,23,0],[6,0,1],[6,1,0],[6,2,0],[6,3,0],[6,4,0],[6,5,0],[6,6,0],[6,7,0],[6,8,0],[6,9,0],[6,10,1],[6,11,0],[6,12,2],[6,13,1],[6,14,3],[6,15,4],[6,16,0],[6,17,0],[6,18,0],[6,19,0],[6,20,1],[6,21,2],[6,22,2],[6,23,6]]; var dataArr3 = [{coord:['Sunday','12a','薩大']},{coord:[2,6,'2個']}] option = { polar: {}, tooltip: { formatter: function (params) { return params.value[2] + ' commits in ' + hours[params.value[1]] + ' of ' + days[params.value[0]]; } }, angleAxis: { type: 'category', data: hours, boundaryGap: false, splitLine: { show: true, lineStyle: { color: '#999', type: 'dashed' } }, axisLine: { show: false } }, radiusAxis: { type: 'category', data: days, axisLine: { show: false }, axisLabel: { rotate: 45 } }, series: [{ name: 'Punch Card', type: 'scatter', coordinateSystem: 'polar', symbolSize: function (val) { return val[2] * 2; }, data: data, markPoint:{ data:dataArr3, label: { formatter: function(params){ console.log(params) return params.data.coord[2] }, } }, animationDelay: function (idx) { return idx * 5; } }] };

把 標註的資料單獨寫出去, 然後利用 label 的 formatter 屬性單獨輸出第三條資料

formatter: function(params){
              console.log(params)
              return params.data.coord[2]
           },

實現效果: