Question

我正在使用我的push函数中的样本数据设置最小值和最大值，以在日期选择器中显示它。但是，当我单击日期选择器时，它显示了错误的最小值和最大值，我的代码有什么问题？我用它来获取最小值和最大值

“ minDate”：dataProvider [0] .date， “ maxDate”：dataProvider [dataProvider.length-1] .date，

var chartData1 = [];


generateChartData();

function generateChartData() {
    chartData1.push(
    {
        "date": "2012-10-11",
        "value": 33
    }, {
        "date": "2012-12-12",
        "value": 50
    }, {
        "date": "2012-12-13",
        "value": 10
    }, {
        "date": "2012-12-14",
        "value": 100
    }, {
        "date": "2013-12-15",
        "value": 30
    });
    
  
}

var chart = AmCharts.makeChart("chartdiv", {
  "type": "stock",
  "extendToFullPeriod": false,

  "dataSets": [{
      "title": "first data set",
      "fieldMappings": [{
        "fromField": "value",
        "toField": "value"
      }, {
        "fromField": "volume",
        "toField": "volume"
      }],
      "dataProvider": chartData1,
      "categoryField": "date"
    }],

  "panels": [{

      "showCategoryAxis": false,
      "title": "Value",
      "percentHeight": 70,

      "stockGraphs": [{
        "id": "g1",

        "valueField": "value",
        "comparable": true,
        "compareField": "value",
        "balloonText": "[[title]]:<b>[[value]]</b>",
        "compareGraphBalloonText": "[[title]]:<b>[[value]]</b>"
      }],

      "stockLegend": {
        "periodValueTextComparing": "[[percents.value.close]]%",
        "periodValueTextRegular": "[[value.close]]"
      }
    },

    {
      "title": "Volume",
      "percentHeight": 30,
      "stockGraphs": [{
        "valueField": "volume",
        "type": "column",
        "showBalloon": false,
        "fillAlphas": 1
      }],

      "stockLegend": {
        "periodValueTextRegular": "[[value.close]]"
      }
    }
  ],

  "chartScrollbarSettings": {
    "graph": "g1"
  },

  "chartCursorSettings": {
    "valueBalloonsEnabled": true,
    fullWidth: true,
    cursorAlpha: 0.1
  },

  "periodSelector": {
    "position": "left",
    "periods": [{
      "period": "MM",
      "selected": true,
      "count": 1,
      "label": "1 month"
    }, {
      "period": "YYYY",
      "count": 1,
      "label": "1 year"
    }, {
      "period": "YTD",
      "label": "YTD"
    }, {
      "period": "MAX",
      "label": "MAX"
    }]
  },

  "dataSetSelector": {
    "position": "left"
  }
});

chart.addListener('rendered', function(event) {
  var dataProvider = chart.dataSets[0].dataProvider;
  $(".amChartsPeriodSelector .amChartsInputField").datepicker({
    "dateFormat": "dd-mm-yy",
    "minDate": dataProvider[0].date,
    "maxDate": dataProvider[dataProvider.length - 1].date,
    "onClose": function() {
      $(".amChartsPeriodSelector .amChartsInputField").trigger('blur');
    }
  });
});

html, body {
  width: 100%;
  height: 100%;
  margin: 0px;
  font-family: Verdana;
}

#chartdiv {
	width: 100%;
	height: 100%;
}

<!-- jQuery stuff -->
<link rel="stylesheet" media="all" href="https://code.jquery.com/ui/1.12.0/themes/ui-lightness/jquery-ui.css" />
<script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/ui/1.12.0/jquery-ui.min.js" integrity="sha256-eGE6blurk5sHj+rmkfsGYeKyZx3M4bG+ZlFyA7Kns7E=" crossorigin="anonymous"></script>

<!-- amCharts -->
<script src="https://www.amcharts.com/lib/3/amcharts.js"></script>
<script src="https://www.amcharts.com/lib/3/serial.js"></script>
<script src="https://www.amcharts.com/lib/3/amstock.js"></script>
<div id="chartdiv"></div>

Answer 1

来自minDate和maxDate documentation：

minDate

支持多种类型：



包含最小日期的日期对象。



采用dateFormat选项定义的格式的字符串或相对日期。

您的日期格式为yyyy-mm-dd，但是您的dateFormat选项为dd-mm-yy。

也就是说，请注意文档中提到它们可以是日期对象。您可以通过将字符串包装在new Date(...)中来将其转换为日期对象。

"minDate": new Date(dataProvider[0].date), "maxDate": new Date(dataProvider[dataProvider.length - 1].date),

var chartData1 = []; generateChartData(); function generateChartData() { chartData1.push({ "date": "2012-10-11", "value": 33 }, { "date": "2012-12-12", "value": 50 }, { "date": "2012-12-13", "value": 10 }, { "date": "2012-12-14", "value": 100 }, { "date": "2013-12-15", "value": 30 }); } var chart = AmCharts.makeChart("chartdiv", { "type": "stock", "extendToFullPeriod": false, "dataSets": [{ "title": "first data set", "fieldMappings": [{ "fromField": "value", "toField": "value" }, { "fromField": "volume", "toField": "volume" }], "dataProvider": chartData1, "categoryField": "date" }], "panels": [{ "showCategoryAxis": false, "title": "Value", "percentHeight": 70, "stockGraphs": [{ "id": "g1", "valueField": "value", "comparable": true, "compareField": "value", "balloonText": "[[title]]:<b>[[value]]</b>", "compareGraphBalloonText": "[[title]]:<b>[[value]]</b>" }], "stockLegend": { "periodValueTextComparing": "[[percents.value.close]]%", "periodValueTextRegular": "[[value.close]]" } }, { "title": "Volume", "percentHeight": 30, "stockGraphs": [{ "valueField": "volume", "type": "column", "showBalloon": false, "fillAlphas": 1 }], "stockLegend": { "periodValueTextRegular": "[[value.close]]" } } ], "chartScrollbarSettings": { "graph": "g1" }, "chartCursorSettings": { "valueBalloonsEnabled": true, fullWidth: true, cursorAlpha: 0.1 }, "periodSelector": { "position": "left", "periods": [{ "period": "MM", "selected": true, "count": 1, "label": "1 month" }, { "period": "YYYY", "count": 1, "label": "1 year" }, { "period": "YTD", "label": "YTD" }, { "period": "MAX", "label": "MAX" }] }, "dataSetSelector": { "position": "left" } }); chart.addListener('rendered', function(event) { var dataProvider = chart.dataSets[0].dataProvider; $(".amChartsPeriodSelector .amChartsInputField").datepicker({ "dateFormat": "dd-mm-yy", "minDate": new Date(dataProvider[0].date), "maxDate": new Date(dataProvider[dataProvider.length - 1].date), "onClose": function() { $(".amChartsPeriodSelector .amChartsInputField").trigger('blur'); } }); });

html, body { width: 100%; height: 100%; margin: 0px; font-family: Verdana; } #chartdiv { width: 100%; height: 100%; }

 <link rel="stylesheet" media="all" href="https://code.jquery.com/ui/1.12.0/themes/ui-lightness/jquery-ui.css" /> <script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script> <script src="https://code.jquery.com/ui/1.12.0/jquery-ui.min.js" integrity="sha256-eGE6blurk5sHj+rmkfsGYeKyZx3M4bG+ZlFyA7Kns7E=" crossorigin="anonymous"></script>  <script src="https://www.amcharts.com/lib/3/amcharts.js"></script> <script src="https://www.amcharts.com/lib/3/serial.js"></script> <script src="https://www.amcharts.com/lib/3/amstock.js"></script> <div id="chartdiv"></div>

日期选择器未设置最大值和最小值

1 个答案: