我有一些麻烦让我的折线图看起来很脆。我不明白为什么会这样。与图表生成相关的代码有点太长了，无法在这里分享，所以我创建了一个仅包含结果的JSFiddle。
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https://jsfiddle.net/gqtuocbw/
我尝试过多种内容，比如
shape-rendering="auto"
shape-rendering="geometricPrecision"
但是没有什么对我有用，当我看到这个http://bl.ocks.org/mbostock/4060954时，我无法理解这个问题。
当我理解潜在的问题时，我会用一些示例更新我的帖子，使其更适合未来的读者。
干杯。
编辑（解决方案+说明）：
在以下JSFiddle中找出已解决的问题：https://jsfiddle.net/cf35rfy2/1/
所以问题是因为rangeRound()与简单interpolation('basis')
文件说：
linear.rangeRound（值）
将比例的输出范围设置为指定的数组值，同时将比例的插值器设置为d3.interpolateRound。这是一个方便的例程，用于当比例输出的值应该是精确整数时，例如以避免抗锯齿伪像。在应用比例后，也可以手动舍入输出值。
我想我应该将它与interpolateRound函数一起使用。
希望这会对某人有所帮助。如果我在这里说错了，请不要犹豫纠正我;但无论如何这解决了我的问题（感谢squeamish ossifrage答案）
答案 0 :(得分：1)
我不确定你所说的“脆”是什么意思，但你的jsfiddle例子对我来说看起来很像素。很容易理解为什么会这样。以下摘自第一个d元素的<path>属性：
L944,324 L939,324 L934,325 L929,325 L924,326 L919,327 L914,327 L909,328 L904,329
L900,329 L895,330 L890,330
如您所见，坐标都具有整数值，Y坐标仅间歇性地更改。结果是一条由许多水平线段组成的线，每个线段与下一个线段之间几乎没有垂直跳跃。如果您将这些坐标更改为小数点后几位数的浮点值，那么您的线条将更加平滑。
以下是一个例子：
<svg width="400" height="100" viewBox="0 0 200 50">
<g fill="none" stroke-width="2px">
<!-- Grey path with integer Y coordinates -->
<path d="M5 33 7 32 9 32 11 32 13 31 15 31 17 31 19 31 21 30 23 30 25 30 27 29 29 29 31 29
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87 20 89 20 91 20 93 20 95 19 97 19 99 19 101 18 103 18 105 18 107 18 109 17 111
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10 159 10 161 10 163 9 165 9 167 9 169 8 171 8 173 8 175 7 177 7 179 7 181 7 183
6 185 6 187 6 189 5 191 5 193 5 195 5 197 4 199 4" stroke="#888"/>
<!-- Blue path with floating-point Y coordinates -->
<path d="M5 43.12 7 42.82 9 42.52 11 42.23 13 41.93 15 41.64 17 41.34 19 41.05 21 40.75 23
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27.44 113 27.14 115 26.85 117 26.55 119 26.26 121 25.96 123 25.67 125 25.37 127
25.07 129 24.78 131 24.48 133 24.19 135 23.89 137 23.60 139 23.30 141 23.00 143
22.71 145 22.41 147 22.12 149 21.82 151 21.52 153 21.23 155 20.93 157 20.64 159
20.34 161 20.05 163 19.75 165 19.45 167 19.16 169 18.86 171 18.57 173 18.27 175
17.98 177 17.68 179 17.38 181 17.09 183 16.79 185 16.50 187 16.20 189 15.91 191
15.61 193 15.31 195 15.02 197 14.72 199 14.43" stroke="#44c"/>
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