flot曲线从第一点开始

Question

我正在使用flotjs插件来创建图表。 在我的例子中，第一条曲线以（0,0）开头但是我需要我的行以（20,20）开头我的意思是从第一个点开始而不是（0,0）...看看我的第二个例子从第一个点开始而不是从（0,0）位置开始。我也需要在曲线图上使用相同的图案。我怎么能这样做？

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//data
var d1 = [[null,],[20, 20], [25, 50], [27.5, 35], [30, 20], [35, 20]];

//flot options
var options = {
                 series: {
                     curvedLines: {active: true}
                 }              };

//plotting
$.plot($("#flotContainer"),[
    {
        data: d1, color: '#2b8cbe',
        lines: {show: true, lineWidth: 3},
        //choose tension from [0,1] to see overshooting effects (0.5 is default)
        curvedLines: {apply: true, tension: 1}
    }, {
        data: d1, color: '#f03b20',
       points: {show: true}
    }    
], options);

$.plot($("#flotContainer2"),[
    {
        data: d1, color: '#2b8cbe',
        lines: {show: true, lineWidth: 3},
        //monotonicFit enforces monotonicity
        curvedLines: {apply: true, monotonicFit: true}
    }, {
        data: d1, color: '#f03b20',
        points: {show: true}
    }    
], options);

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.chart-style {
    width: 400px;
    height: 240px;
}

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.rawgit.com/flot/flot/v0.8.3/jquery.flot.js"></script>
<script src="https://rawgit.com/MichaelZinsmaier/CurvedLines/master/curvedLines.js"></script>
<h4>CurvedLines: with standard settings (shows effects of tension parameter)</h4>
<div id="flotContainer" class="chart-style"></div>

<h4>CurvedLines: with monotonicFit (no overshooting/wiggles) </h4>
<div id="flotContainer2" class="chart-style"></div>

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但它在折线图上的工作正常

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var data = [
    {
     label: 'foo',
     color: 'red',
     data: [[0,null],[1, 300], [2, 300], [3, 300], [4, 300], [5, 300]]},
     {
     label: 'bar',
     color: 'blue',
     data: [[1, 800], [2, 600], [3, 400], [4, 200], [5, 0]]},
     {    label: 'baz',
     olor: 'yellow',
     data: [[1, 100], [2, 200], [3, 300], [4, 400], [5, 500]]},
     {
     label: 'dart',
     color: 'green',
     data: [[1, 500], [2, 350], [3, 400], [4, 700], [5, 50]]}
    ];

var flot = $.plot($("#placeholder"), data, {
    series: {
        lines: {
            show: true
            
        },
        points:{
        show:true
        }
       
      },
     legend: {
         noColumns: 4,
         container: $("#chartLegend")
     }
  });

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#chartLegend .legendLabel { padding-right:10px; }

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://people.iola.dk/olau/flot/jquery.flot.js"></script>
<script src="https://cdn.rawgit.com/flot/flot/v0.8.3/jquery.flot.js"></script>

    <div id="placeholder" style="width:600px;height:300px;"></div>
    <div id="chartLegend"></div>

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Answer 1

curvedLines插件使用您的第一个数据点[null,]并将其转换为[0,0]。删除该数据点，曲线从[20,20]开始。

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//data
var d1 = [
  [20, 20],
  [25, 50],
  [27.5, 35],
  [30, 20],
  [35, 20]
];

//flot options
var options = {
  series: {
    curvedLines: {
      active: true
    }
  }
};

//plotting
$.plot($("#flotContainer"), [{
  data: d1,
  color: '#2b8cbe',
  lines: {
    show: true,
    lineWidth: 3
  },
  //choose tension from [0,1] to see overshooting effects (0.5 is default)
  curvedLines: {
    apply: true,
    tension: 1
  }
}, {
  data: d1,
  color: '#f03b20',
  points: {
    show: true
  }
}], options);

$.plot($("#flotContainer2"), [{
  data: d1,
  color: '#2b8cbe',
  lines: {
    show: true,
    lineWidth: 3
  },
  //monotonicFit enforces monotonicity
  curvedLines: {
    apply: true,
    monotonicFit: true
  }
}, {
  data: d1,
  color: '#f03b20',
  points: {
    show: true
  }
}], options);

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.chart-style {
  width: 400px;
  height: 240px;
}

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.rawgit.com/flot/flot/v0.8.3/jquery.flot.js"></script>
<script src="https://rawgit.com/MichaelZinsmaier/CurvedLines/master/curvedLines.js"></script>
<h4>CurvedLines: with standard settings (shows effects of tension parameter)</h4>
<div id="flotContainer" class="chart-style"></div>

<h4>CurvedLines: with monotonicFit (no overshooting/wiggles) </h4>
<div id="flotContainer2" class="chart-style"></div>

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