d3noob/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    Added as an example for the question asked here on Stack Overflow.

  
## data.csv

          
            date
            New York
            San Francisco
            Austin

            
              1-May-12
              43.98
              48.13
              43

            
              30-Apr-12
              53.98
              88.13
              53

            
              27-Apr-12
              63
              68
              63

            
              26-Apr-12
              73
              58
              73

            
              25-Apr-12
              83
              48
              83

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}


.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 1.5px;
}
.grid .tick {
    stroke: lightgrey;
    stroke-opacity: 0.7;
    shape-rendering: crispEdges;
}
.grid path {
  stroke-width: 0;
}

</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>
<script>

var margin = {top: 20, right: 80, bottom: 30, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var parseDate = d3.time.format("%Y%m%d").parse;

var x = d3.time.scale()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var color = d3.scale.ordinal().range(["#FF0000", "#FFFF00", "#000000", "#FF00FF"]);

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var line = d3.svg.line()
    .interpolate("basis")
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y(d.temperature); });

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 + ")");

function make_y_axis() {
    return d3.svg.axis()
        .scale(y)
        .orient("left")
}

/*
var data = [
{date:"1-May-12","New York":"58.13", "San Francisco":"58.13", "Austin": "43"},
{date:"30-Apr-12","New York":"53.98" , "San Francisco":"48.13", "Austin": "53"},
{date:"27-Apr-12","New York":"67.00", "San Francisco":"38.13", "Austin": "63"},
{date:"26-Apr-12","New York":"89.70", "San Francisco":"28.13", "Austin": "73"},
{date:"25-Apr-12","New York":"99.00", "San Francisco":"18.13", "Austin": "83"}
];
*/

d3.csv("data.csv", function(error, data) {

data.forEach(function(d) {
    d.date = new Date (d.date);
});

color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; }));


//console.log(data);

var cities = color.domain().map(function(name) {
  return {
    name: name,
    values: data.map(function(d) {
      return {date: d.date, temperature: +d[name]};
    })
  };
});

console.log(cities);

x.domain(d3.extent(data, function(d) { return d.date; }));

y.domain([
  d3.min(cities, function(c) { return d3.min(c.values, function(v) { return v.temperature; }); }),
  d3.max(cities, function(c) { return d3.max(c.values, function(v) { return v.temperature; }); })
]);

svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(xAxis);

svg.append("g")
    .attr("class", "y axis")
    .call(yAxis)
svg.append("g")
  .attr("class", "grid")
  .call(make_y_axis()
      .tickSize(-width, 0, 0)
      .tickFormat("")
  )


var city = svg.selectAll(".city")
    .data(cities)
  .enter().append("g")
    .attr("class", "city");

city.append("path")
    .attr("class", "line")
    .attr("d", function(d) { return line(d.values); })
    .style("stroke", function(d) { return color(d.name); });

});

</script>

## thumbnail.png

      
    Raw
  

              thumbnail.png
date	New York	San Francisco	Austin
1-May-12	43.98	48.13	43
30-Apr-12	53.98	88.13	53
27-Apr-12	63	68	63
26-Apr-12	73	58	73
25-Apr-12	83	48	83
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	font: 10px sans-serif;
	}

	.axis path,
	.axis line {
	fill: none;
	stroke: #000;
	shape-rendering: crispEdges;
	}



	.line {
	fill: none;
	stroke: steelblue;
	stroke-width: 1.5px;
	}
	.grid .tick {
	stroke: lightgrey;
	stroke-opacity: 0.7;
	shape-rendering: crispEdges;
	}
	.grid path {
	stroke-width: 0;
	}

	</style>
	<body>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>
	<script>

	var margin = {top: 20, right: 80, bottom: 30, left: 50},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	var parseDate = d3.time.format("%Y%m%d").parse;

	var x = d3.time.scale()
	.range([0, width]);

	var y = d3.scale.linear()
	.range([height, 0]);

	var color = d3.scale.ordinal().range(["#FF0000", "#FFFF00", "#000000", "#FF00FF"]);

	var xAxis = d3.svg.axis()
	.scale(x)
	.orient("bottom");

	var yAxis = d3.svg.axis()
	.scale(y)
	.orient("left");

	var line = d3.svg.line()
	.interpolate("basis")
	.x(function(d) { return x(d.date); })
	.y(function(d) { return y(d.temperature); });

	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 + ")");

	function make_y_axis() {
	return d3.svg.axis()
	.scale(y)
	.orient("left")
	}

	/*
	var data = [
	{date:"1-May-12","New York":"58.13", "San Francisco":"58.13", "Austin": "43"},
	{date:"30-Apr-12","New York":"53.98" , "San Francisco":"48.13", "Austin": "53"},
	{date:"27-Apr-12","New York":"67.00", "San Francisco":"38.13", "Austin": "63"},
	{date:"26-Apr-12","New York":"89.70", "San Francisco":"28.13", "Austin": "73"},
	{date:"25-Apr-12","New York":"99.00", "San Francisco":"18.13", "Austin": "83"}
	];
	*/

	d3.csv("data.csv", function(error, data) {

	data.forEach(function(d) {
	d.date = new Date (d.date);
	});

	color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; }));



	//console.log(data);

	var cities = color.domain().map(function(name) {
	return {
	name: name,
	values: data.map(function(d) {
	return {date: d.date, temperature: +d[name]};
	})
	};
	});

	console.log(cities);

	x.domain(d3.extent(data, function(d) { return d.date; }));

	y.domain([
	d3.min(cities, function(c) { return d3.min(c.values, function(v) { return v.temperature; }); }),
	d3.max(cities, function(c) { return d3.max(c.values, function(v) { return v.temperature; }); })
	]);

	svg.append("g")
	.attr("class", "x axis")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis);

	svg.append("g")
	.attr("class", "y axis")
	.call(yAxis)
	svg.append("g")
	.attr("class", "grid")
	.call(make_y_axis()
	.tickSize(-width, 0, 0)
	.tickFormat("")
	)


	var city = svg.selectAll(".city")
	.data(cities)
	.enter().append("g")
	.attr("class", "city");

	city.append("path")
	.attr("class", "line")
	.attr("d", function(d) { return line(d.values); })
	.style("stroke", function(d) { return color(d.name); });

	});

	</script>