wind tests 3

forked from fogonwater's block: wind tests

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/chroma-js/1.3.4/chroma.min.js"></script>
  <style>
    body { margin:0;top:0;right:0;bottom:0;left:0; text-align:center;background-color:#EAEFE7;}
    svg { font-family: Courier; }
    .annotation-note-title, text.title { font-weight: bold; }
    text.title { font-size: 1.2em; }
  </style>
</head>
<body>
  
  <svg width="1060" height="2560">
    <text class="title" x=40 y=50>wind blows</text>
    <g transform="translate(1,1)"></g>
</svg>
  
<script>
const svg   = d3.select("svg"),
  		width = +svg.attr("width"),
  		height= +svg.attr("height"),
      parseDate = d3.timeParse("%Y %m %d"),
      color = chroma
    				.scale(['#ED9367','#FAE8CB'])
    				.mode('lch')
    				.colors(12)

const ox = width / 2,
        oy = height / 2
  			sf = 40

const line = d3.line()
    //.x(function(d) { return x(d.speed)})
    .x( (d) => d.x )
		.y( (d) => d.y )
		.curve(d3.curveBasis)

// Get the data from our CSV file
d3.csv('wind-welly-y2016.csv', function(error, data) {
  
	if (error) throw error;
	data.forEach(function(d) {
    		d.speed = +d['Speed(m/s)']
        d.dir = +d['Dir(DegT)']
   });
  
  var nested_data = d3.nest()
       .key(function(d) { return d['Date(NZST)']; })
       .entries(data)
  
  var path
  
  nested_data.forEach(function(d) {
    		path = []
        
        d.values.forEach(function(dd, i) {
          path.push({
            x:ox + (Math.sin(Math.radians(dd.dir % 360)) * dd.speed * sf),
            y:oy + (Math.cos(Math.radians(dd.dir % 360)) * dd.speed * sf)
          })
          
        })
        
        svg.append("path")
            .attr("class", "line")
        		.attr("fill", "none")
        		.attr("stroke", '#222' )
            .attr("stroke-linejoin", "round")
            .attr("stroke-linecap", "round")
            .attr("stroke-width", 0.5)
        		.attr("opacity", 1.0)
            .attr("d", line(path))
    });
  	
  
  //d3.select("#out").text(JSON.stringify(nested_data, null, 4));
});

Math.radians = function(degrees) {
  return degrees * Math.PI / 180;
}
  </script>
</body>

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

https://cdnjs.cloudflare.com/ajax/libs/chroma-js/1.3.4/chroma.min.js