如何在条形图中获取条形图 X 和 Y 的起点

How can I get starting point of X & Y of a bar in Bar Graph

我有一个条形图,我在其中调用了一个 javascript 函数来对条形图上的鼠标单击进行一些操作,我想获得同一条形图的 X 和 Y 轴的起点我点击了,我可以在融合图表中执行此操作吗?如果可以,如何操作?

我用黄色突出显示,我需要根据屏幕显示这些位置。

是的,当您点击条形图时,您可以获得图表维度的 x 和 y 坐标。

您需要使用单击图上任意位置时触发的 FusionCharts "dataPlotClick" 事件 API。然后,在事件函数参数中,您可以使用预定义属性 "chartX" 和 "chartY" 来获取单击点的 x 和 y 坐标。

请查看文档 link 以供参考:https://www.fusioncharts.com/dev/api/fusioncharts/fusioncharts-events#dataplotclick-261

另找一个样本fiddle供参考:https://jsfiddle.net/mf1qh9ku/1/

FusionCharts.ready(function() {
var revenueChart = new FusionCharts({
type: 'bar2d',
renderAt: 'chart-container',
width: '500',
height: '350',
dataFormat: 'json',
dataSource: {
  "chart": {
    "caption": "Monthly revenue for last year",
    "subCaption": "Harry's SuperMart",
    "xAxisName": "Month",
    "yAxisName": "Revenue (In USD)",
    "numberPrefix": "$",
    "paletteColors": "#0075c2",
    "bgColor": "#ffffff",
    "borderAlpha": "20",
    "canvasBorderAlpha": "0",
    "usePlotGradientColor": "0",
    "plotBorderAlpha": "10",
    "placevaluesInside": "1",
    "rotatevalues": "1",
    "valueFontColor": "#ffffff",
    "showXAxisLine": "1",
    "xAxisLineColor": "#999999",
    "divlineColor": "#999999",
    "divLineIsDashed": "1",
    "showAlternateHGridColor": "0",
    "subcaptionFontBold": "0",
    "subcaptionFontSize": "14"
  },
  "data": [{
    "label": "Jan",
    "value": "420000"
  }, {
    "label": "Feb",
    "value": "810000"
  }, {
    "label": "Mar",
    "value": "720000"
  }, {
    "label": "Apr",
    "value": "550000"
  }, {
    "label": "May",
    "value": "910000"
  }, {
    "label": "Jun",
    "value": "510000"
  }, {
    "label": "Jul",
    "value": "680000"
  }, {
    "label": "Aug",
    "value": "620000"
  }, {
    "label": "Sep",
    "value": "610000"
  }, {
    "label": "Oct",
    "value": "490000"
  }, {
    "label": "Nov",
    "value": "900000"
  }, {
    "label": "Dec",
    "value": "730000"
  }]
},
"events": {
  "dataPlotClick": function(eventObj, dataObj) {
    alert("X : " + eventObj.data.chartX + ", Y : " + eventObj.data.chartY);
  }
}
}).render();
});