在具有时间轴的堆叠面积图上渲染数据的D3问题

dffbzjpn  于 11个月前  发布在  其他
关注(0)|答案(1)|浏览(51)

我试图得到一个堆叠面积图,以d3的Angular 渲染,但当我添加更改值Map到底部轴从一个小数字0,1,2,3到日期20190101,20200101,20210101它不再渲染。
我似乎找不到解决这个问题的方法
问题代码:

draw(graphAnchorId, data, timeline) {
  
    const chartHeight = 100;
    const chartWidth = 200;

    const yScale = d3.scaleLinear().range([chartHeight, 0]).domain([0, 100]);
    const xScale = d3.scaleLinear().domain([0, 14]).range([0, chartWidth]);

    const tParser = d3.timeParse("%Y%m%d");

    const colors = ["#ffa600BB","#ff6e54BB","#dd5182BB","#955196BB","#444e86BB","#003f5cBB"];
    var stackGen = d3.stack().keys(["age1", "age2", "age3", "age4"]);
    var stackedData = stackGen(data);

/*-----------Setup The Box to draw graph in---------------------------------------------------------------------------------------------------------------*/
    var svg = d3
    .select("#"+graphAnchorId)
    .append("div")
    .classed("svg-container", true) //container class to make it responsive
    .append("svg")                  // Place the chart in 'pie-chart-div'
    .attr("preserveAspectRatio", "xMinYMin meet")
    .attr("viewBox", "0 0 100 200") // <min-x> <min-y> <width> <height>
    .classed("svg-content-responsive", true)
    .attr("width", "100%")
    .attr("height", "100%");
    
    var vis = svg
    .data([data]).attr("width", "95%").attr("height", "80%")
    .attr("viewBox", -20 + " " + 20 + " " + (chartWidth) + " " + chartHeight)// <min-x> <min-y> <width> <height>
    .attr("preserveAspectRatio", "xMinYMin");
/*-----------Setup The Box to draw graph in---------------------------------------------------------------------------------------------------------------*/

/*-----------Draw Graph---------------------------------------------------------------------------------------------------------------*/
    const area = d3.area()
      .x(function(d) {  return xScale(d.data.date)})
      .y0(function(d) { return yScale(d[0]);})
      .y1(function(d) { return yScale(d[1]);});

    const ageGroup =svg.selectAll('.valgroup')
      .data(stackedData)
      .enter()
      .append('g')
      .attr('class', 'valgroup')
      .attr("stroke", "#222222CC")
      .attr("stroke-width", 0.25)
      .style('fill', function(d, i) {return colors[i];});

    ageGroup.append('path').attr('d', function(d) { return area(d); })
/*-----------Draw Graph---------------------------------------------------------------------------------------------------------------*/

/*-----------Add Axis---------------------------------------------------------------------------------------------------------------*/
/*-----------Add Axis Y ------------------------------------------------------------*/
    var y = d3.scaleLinear().domain([0, d3.max(data, function(d) { return d.age1+d.age2+d.age3+d.age4; })])
      .range([ chartHeight, 0 ]);
    svg.append("g").call(d3.axisLeft(y));
/*-----------Add Axis Y ------------------------------------------------------------*/
/*-----------Add Axis X ------------------------------------------------------------*/
    if(timeline){
      var x = d3.scaleTime()
      .domain(d3.extent(data, function(d) {console.log("date------>>>> ",d.date,tParser(d.date) ); return tParser(d.date);  }))
      .range([ 0, chartWidth ]);
      svg.append("g")
        .attr("transform", "translate(0," + chartHeight + ")")
        .call(d3.axisBottom(x));
    }else{
      var x = d3.scaleLinear()
      .domain([d3.min(data, function(d) { return d.date; }), d3.max(data, function(d) { return d.date; })])
      .range([ 0, chartWidth ]);
  
      svg.append("g")
        .attr("transform", "translate(0," + chartHeight + ")")
        .call(d3.axisBottom(x));
    }
/*-----------Add Axis X ------------------------------------------------------------*/
/*-----------Add Axis---------------------------------------------------------------------------------------------------------------*/
  }

字符串
下面是一个堆栈 lightning 战:https://stackblitz.com/edit/angular-ivy-q689ep?file=src%2Fapp%2Fapp.component.html,angular.json,src%2Fapp%2Fapp.module.ts,src%2Fapp%2FstackedArea-chart-visualization%2FstackedArea-chart-visualization.component.ts
谢谢你的帮助
编辑
注意,在处理这个问题时,我意识到带有日期的数据是问题所在,(x轴不是导致问题的原因)。它可以像这样呈现数据:{date:0,age1:31岁2岁10岁3岁32,年龄4:27 },
它无法呈现具有此新日期{date:20180101,年龄1:31岁2岁10岁3岁32,年龄4:27 },

ds97pgxw

ds97pgxw1#

我通过交换

const area = d3.area()
  .x(function(d) {  return xScale(d.data.date)})
  .y0(function(d) { return yScale(d[0]);})
  .y1(function(d) { return yScale(d[1]);});

字符串
为了这个

const area = d3.area()
  .x(function(d) {  return x(d.data.date)})
  .y0(function(d) { return yScale(d[0]);})
  .y1(function(d) { return yScale(d[1]);});

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