TP3-p1

forked from romsson's block: simple line chart from dataset

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    
		svg {
  		font: 10px sans-serif;
		}
    
    .line {
      fill: none;
      stroke: black;
      stroke-width: 2.5px;
    }
  </style>
</head>

<body>
  <script>
    
    var margin = {top: 20, right: 30, bottom: 20, left: 100};
    var width = 760 - margin.left - margin.right;
    var height = 300 - margin.top - margin.bottom;
    
    var svg = d3.select("body").append("svg")
      .attr("width", width + margin.left + margin.right)
      .attr("height", height + margin.top + margin.bottom)
      .append("g")
      .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

// See formats https://bl.ocks.org/zanarmstrong/raw/05c1e95bf7aa16c4768e/
    // Data sample {"name": "G", "value": 10, "date": "2016-07"}
    var parseDate = d3.timeParse("%b %Y");
    var displayDate = d3.timeFormat("%y");
    var displayValue = d3.format(",.0f");
    
    // Ordinal scale
    var x = d3.scaleTime()
        .range([0, width]);

// Linear scale
    var y = d3.scaleLinear()
        .range([height, 0]);
    
    var color = d3.scaleOrdinal(d3.schemeCategory10);

// Display last value
      /*g.selectAll(".value").data([data[data.length -1]]).enter()
       .append("text")
        .text(function(d, i) { return displayValue(d.value); })
        .attr("class", "value")
        .attr("y", function(d) { return y(d.value); })
        .attr("x", width + 10)
        .style("font-size", 20)
        .style("font-family", "monospace");*/

g.selectAll(".line").data(n_data).enter().append("path")
        .attr("class", "line")
        .attr("d", function (d) { return line (d.values) } )
     		.style("stroke", function(d) { return color(d.key); });
        
      var legend = svg.selectAll(".legend")
    		.data(color.domain())
  			.enter().append("g")
  		  .attr("class", "legend")
  		  .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });

legend.append("rect")
     		.attr("x", 30)
     		.attr("width", 18)
     		.attr("height", 18)
     		.style("fill", color);

legend.append("text")
      	.attr("x", 50)
      	.attr("y", 9)
      	.attr("dy", ".35em")
      	.style("text-anchor", "start")
      	.text(function(d,i) { return d; });

});

</script>
</body>

https://d3js.org/d3.v4.min.js