D3 Examples - Temperaturas Nueva York

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
   <script src="https://d3js.org/d3.v5.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    
    .axisLabel {}
  
  
  </style>
</head>
​
<body>
  <h1>Temperaturas Nueva York</h1>
​
  <script>
        const rectWidth = 41;
        const city = "New York";
        //Altura y anchura con márgenes
        const totalWidth = 800;
      const totalHeight = 300;
      
      var margin = {top: 20, right: 20, bottom: 50, left: 50};
        var width = totalWidth - margin.left - margin.right;
        var height = totalHeight - margin.top - margin.bottom;
      
      var svg = d3.select("body")
                            .append("svg")
                            .attr("width", totalWidth)
                            .attr("height", totalHeight)
      
        var chart = svg.append("g")
                                    .attr("transform", `translate(${margin.left},${margin.top})`);
    
    function typeClean(row){
        r = {};
        r.temperature = +row[city];//y
        fecha = d3.timeParse("%Y%m%d")(row.date);
        r.date = new Date(fecha);//x
//         if (r.temperature <60) {
//             return r;
//         }
        return r;
      }
      
        d3.tsv("data.tsv", 
             row => typeClean(row)).then(datos => 
        {
            //Scales
            const xExtent = d3.extent(datos, d => d.date)
          const xScale = d3.scaleTime()
                                            .domain(xExtent)
                                            .range([0, width])
                                            .nice()
          
          const yMax = d3.max(datos, d => d.temperature)
          const yScale = d3.scaleLinear()
                                            .domain([0, yMax])
                                            .range([height, 0])
                                            .nice()
          
//           const heightScale = d3.scaleLinear()
//                                              .domain([0, yMax])
//                                              .range([0, height])
//                                              .nice()
        
            const xAxis = d3.axisBottom()
                                        .scale(xScale)
                                        .tickFormat(d3.timeFormat('%b %Y'))
          const yAxis = d3.axisLeft()
                                        .scale(yScale)
          
          chart.append('g')
            .attr("transform", `translate(0,${height})`)
            .call(xAxis)
            .append("text")
                .text("Mes")
                .attr("x", width/2)
                .attr("y", 50)
                .attr("text-anchor", "middle")
                .attr("fill","black")
                
                .attr("fill","black")
                .attr("class", "axiLabel")
          
          chart.append('g')
            .call(yAxis)
            .append("text")
                .text("Temperatura")
                .attr("x", -height/2)
                .attr("y", -30)
                .attr("text-anchor", "middle")
                .attr("fill","black")
                .attr("class", "axiLabel")
                .attr("transform","rotate(-90)")
          
          var line = d3.line()
                                .x(d => xScale(d.date))
                                .y(d => yScale(d.temperature))
          
          chart.append("path")
                .attr("d",line(datos))
                .attr("fill", "None")
                .attr("stroke", "blue")
                .attr("stroke-width", 0.5)
            
​
      })
    
    
    
​
  </script>
</body>
​
​
    