D3 Examples - Blood Pressure Waveform

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<!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; }
    
.axis {
  font: 10px sans-serif;
}
​
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 1.5px;
}
</style>
</head>
​
<body>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
  
var svg = d3.select("body").append("svg")
    .attr("width", 960)
    .attr("height", 500)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
  
var x = d3.scaleLinear()
    .range([0, width]);
var y = d3.scaleLinear()
    .range([height, 0]);
​
var line = d3.line()
    .x(d => x(d.t))
    .y(d => y(d.value));
  
d3.csv("data.dat", type, (err, data) => {
  if (err) throw err;
  
  x.domain(d3.extent(data, d => d.t));
  y.domain(d3.extent(data, d => d.value));
​
  svg.append("g")
      .attr("class", "axis axis--x")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x));
​
  svg.append("g")
      .attr("class", "axis axis--y")
      .call(d3.axisLeft(y));
  
   svg.append("path")
      .datum(data)
      .attr("class", "line")
      .attr("d", line); 
  
});
  
function type(d, i) {
  d.value = +d.value;
  d.t = i;
  return d;
}
  </script>
</body>
​
    