Question

我对d3和React都很新，所以请保持温柔：）

我有一个现有的d3热图，我试图修改它以在React中工作。

我正在尝试按照此视频中列出的方法......

https://www.youtube.com/watch?v=65UojvN1Qqs

...基本上说它使用d3作为数学智能，并对DOM操作作出反应。

但是我试图翻译从现有热图中获取的以下x轴代码...

// X-SCALE

    var xScale = d3
      .scaleTime()
      .domain(domain)
      .nice()
      .range(range);

    var xAxis = d3
      .axisBottom(xScale)
      .tickSize(0);

    function customXAxis(g) {
      let textAdjustment = blockWidth / 2;
      g.call(xAxis);
      g.select(".domain").remove();
      g.selectAll(".tick line").attr("stroke", "#D8D9DA");
      g.selectAll(".tick text").attr("fill", "#D8D9DA").attr("dx", textAdjustment);
    }

    g.append("g")
      .attr("transform", "translate(0," + plotAreaheight + ")")
      .call(customXAxis);

根据给予域和范围的值，应该输出符合......

的内容

<g transform="translate(0,198)" fill="none" font-size="10" font-family="sans-serif" text-anchor="middle">    <g class="tick" opacity="1" transform="translate(40,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Tue 23</text>    </g>    <g class="tick" opacity="1" transform="translate(158.23387096774195,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Thu 25</text>    </g>    <g class="tick" opacity="1" transform="translate(276.4677419354839,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Sat 27</text>    </g>    <g class="tick" opacity="1" transform="translate(394.7016129032258,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Mon 29</text>    </g>    <g class="tick" opacity="1" transform="translate(512.9354838709678,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Wed 31</text>    </g>    <g class="tick" opacity="1" transform="translate(572.0524193548388,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">June</text>    </g>    <g class="tick" opacity="1" transform="translate(690.2862903225807,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Sat 03</text>    </g>    <g class="tick" opacity="1" transform="translate(808.5201612903226,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Mon 05</text>    </g>    <g class="tick" opacity="1" transform="translate(926.7540322580645,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Wed 07</text>    </g>    <g class="tick" opacity="1" transform="translate(1044.9879032258063,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Fri 09</text>    </g>    <g class="tick" opacity="1" transform="translate(1163.2217741935483,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Jun 11</text>    </g>    <g class="tick" opacity="1" transform="translate(1281.4556451612902,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Tue 13</text>    </g>    <g class="tick" opacity="1" transform="translate(1399.6895161290322,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Thu 15</text>    </g>    <g class="tick" opacity="1" transform="translate(1517.9233870967741,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Sat 17</text>    </g>    <g class="tick" opacity="1" transform="translate(1636.157258064516,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Mon 19</text>    </g>    <g class="tick" opacity="1" transform="translate(1754.391129032258,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Wed 21</text>    </g>    <g class="tick" opacity="1" transform="translate(1872.625,0)">
      <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
      <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Fri 23</text>    </g> </g>

在我脑海中，我觉得我希望能够映射xAxis的结果。有点像...

xAxis().map((d, i) => { 

    <g class="tick" opacity="1" transform="translate(1872.625,0)">
          <line stroke="#D8D9DA" y2="0" x1="0.5" x2="0.5" />
          <text fill="#D8D9DA" y="3" x="0.5" dy="0.71em" dx="33.9375">Fri 23</text>    
    </g> 
})

......但无法让它发挥作用。在原始版本中，使用g.call（xAxis）调用xAxis;这将给它一些工作环境，这是我认为我缺少的。

任何反馈意见。

Answer 1

在这里回答我自己的问题。希望其他人可能会觉得它很方便：

    const xScale = scaleTime()
        .domain(domain)
        .range(range);

      const xTicks = timeScale.ticks()

      const xTickElements = timeTicks.map((tick, index) => {
          const position = xScale(tick)
          const translate =`translate(0, ${position})`
          return (
              <g key={`${tick}.${index}`} className="tick" transform={translate}>
                <text>{tick}</text>
              </g>
          )
      })


return (<svg width={width} height={height}><g>{xTickElements}</g></svg>)

任何积极或消极的反馈意见。

转换现有的d3可视化以使用React

1 个答案: