Dojox Data Chart xaxis

Question

我想知道是否有可能在dojox. charts . datachart中正确设置每个坐标轴

这是我的数据。JSON示例:

{ 
  "label": "btmlabel",
  "items": [
        { "mydata":"ANDT", "btmlabel":[{value: 1, text: "22 April 10.34AM"},{value: 2, text: "22 April 10.40AM"}], "data":[{"x":1,"y":1},{"x":2,"y":3}] }
       ]
}

并尝试绘制失败的xaxis(在xaxis中显示空)，代码如下:

var chartPrefs = {
            chartPlot: {type:dojox.charting.plot2d.Markers, tension:"S"},
            scroll:true,
            xaxis:{labelFunc:"seriesLabels"},
        }
        chart = new dojox.charting.DataChart("chartNode", chartPrefs);
        chart.setStore(store, {mydata:"*"}, "data");
        });

Answer 1

看起来你的json对象结构是无效的图表。最好使用下面的结构:

var storeData = {
    "label": "btmlabel",
    "items":
        [
           {
              "btmlabel": "22 April 10.34AM",
              "data": 1
           },
           {
              "btmlabel": "22 April 10.40AM",
              "data": 3
           }
        ]
    }

和创建图表:

dojo.addOnLoad(function () {
            var storeForChart = new dojo.data.ItemFileWriteStore({ data: storeData });
            var chartPrefs = {
                chartPlot: { type: dojox.charting.plot2d.Markers, tension: "S" },
                comparative: true,
                xaxis: { labelFunc: "seriesLabels" }
            }
            chart = new dojox.charting.DataChart("chartNode", chartPrefs);
            chart.setStore(storeForChart, { data: "*" }, "data");
        });

查看本页的源代码-这里是工作示例。
阅读关于图表构建的好文章- introduction -dojox-datachart

编辑:

再看看这一页。我想这会对你很有帮助。