NVD3：如何在默认负载下取消设置画笔？

Question

我正在使用stackedAreaWithFocusChart，在示例中，他们有这行：

chart.brushExtent([1225425600000, 1285819200000]);

设置默认视图。

这是我要修改的图表类型：https://github.com/novus/nvd3/blob/master/examples/stackedAreaWithFocusChart.html

请注意，默认情况下，它会选择焦点区域的一部分。

我想将其修改为以下行为：https://github.com/novus/nvd3/blob/master/examples/linePlusBarChart.html

请注意，默认情况下，此图表会选择所有内容。

我试图将brushExtent设置为最小值和最大值，但这意味着默认值为所有选定的内容，用户无法轻易拖动其选择内容，因此必须分别移动两端。

我试图注释出brushExtent（）行，结果是一个空图，直到我改变焦点，或者我必须单击“ stream”或“ expanded”选项，然后单击“ stacked”选项以获取什么我想要。

谢谢！

Answer 1

删除chart.brushExtent([1225425600000, 1285819200000])并使用chart.update()手动更新图表应该可以解决问题。

var colors = d3.scale.category20();
var chart;
nv.addGraph(function() {
  chart = nv.models.stackedAreaWithFocusChart()
    .useInteractiveGuideline(true)
    .x(function(d) {
      return d[0]
    })
    .y(function(d) {
      return d[1]
    })
    .controlLabels({
      stacked: "Stacked"
    })
    .duration(300);

  chart.xAxis.tickFormat(function(d) {
    return d3.time.format('%x')(new Date(d))
  });
  chart.x2Axis.tickFormat(function(d) {
    return d3.time.format('%x')(new Date(d))
  });
  chart.yAxis.tickFormat(d3.format(',.4f'));
  chart.y2Axis.tickFormat(d3.format(',.4f'));
  chart.legend.vers('furious');

  d3.select('#chart1')
    .datum(histcatexplong)
    .transition().duration(1000)
    .call(chart)
    .each('start', function() {
      setTimeout(function() {
        d3.selectAll('#chart1 *').each(function() {
          if (this.__transition__)
            this.__transition__.duration = 1;
        })
      }, 0)
    });

  nv.utils.windowResize(chart.update);

  // Note here manually update chart
  chart.update();
  return chart;
});

var histcatexplong = [{
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    [1151640000000, 1.328626801128],
    [1154318400000, 1.2874050802627],
    [1156996800000, 1.0872743105593],
    [1159588800000, 0.96042562635813],
    [1162270800000, 0.93139372870616],
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    [1201755600000, 0],
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    [1212206400000, 0],
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    [1230699600000, 2.2752595354509],
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}, {
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}, {
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}];

text {
  font: 12px sans-serif;
}

svg {
  display: block;
}

html,
body,
svg {
  margin: 0px;
  padding: 0px;
  height: 100%;
  width: 100%;
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.6/nv.d3.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js" charset="utf-8"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.6/nv.d3.js"></script>

<svg id="chart1"></svg>