d3noob/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    This is a simple graph demonstrating the addition of tooltips with a hyperlink in a graph.
This graph is part of the code samples for the update to the book D3 Tips and Tricks to version 6 of d3.js.

  
## data.csv

          
            date
            close

            
              1-May-12
              58.13

            
              30-Apr-12
              53.98

            
              27-Apr-12
              67.00

            
              26-Apr-12
              89.70

            
              25-Apr-12
              99.00

            
              24-Apr-12
              130.28

            
              23-Apr-12
              166.70

            
              20-Apr-12
              234.98

            
              19-Apr-12
              345.44

            
              18-Apr-12
              443.34

            
              17-Apr-12
              543.70

            
              16-Apr-12
              580.13

            
              13-Apr-12
              605.23

            
              12-Apr-12
              622.77

            
              11-Apr-12
              626.20

            
              10-Apr-12
              628.44

            
              9-Apr-12
              636.23

            
              5-Apr-12
              633.68

            
              4-Apr-12
              624.31

            
              3-Apr-12
              629.32

            
              2-Apr-12
              618.63

            
              30-Mar-12
              599.55

            
              29-Mar-12
              609.86

            
              28-Mar-12
              617.62

            
              27-Mar-12
              614.48

            
              26-Mar-12
              606.98

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */

.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 2px;
}

div.tooltip {
  position: absolute;
  text-align: center;
  width: 60px;
  height: 28px;
  padding: 2px;
  font: 12px sans-serif;
  background: lightsteelblue;
  border: 0px;
  border-radius: 8px;
}

</style>
<body>

<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v6.min.js"></script>
<script>

// set the dimensions and margins of the graph
var margin = {top: 20, right: 20, bottom: 30, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

// parse the date / time
var parseTime = d3.timeParse("%d-%b-%y");
var formatTime = d3.timeFormat("%e %B");

// set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);

// define the line
var valueline = d3.line()
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y(d.close); });

var div = d3.select("body").append("div")
    .attr("class", "tooltip")
    .style("opacity", 0);

// append the svg obgect to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
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 + ")");

// Get the data
d3.csv("data.csv").then(function(data) {

  // format the data
  data.forEach(function(d) {
      d.date = parseTime(d.date);
      d.close = +d.close;
  });

  // scale the range of the data
  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([0, d3.max(data, function(d) { return d.close; })]);

  // add the valueline path.
  svg.append("path")
     .data([data])
     .attr("class", "line")
     .attr("d", valueline);

  // add the dots with tooltips
  svg.selectAll("dot")
     .data(data)
   .enter().append("circle")
     .attr("r", 5)
     .attr("cx", function(d) { return x(d.date); })
     .attr("cy", function(d) { return y(d.close); })
     .on("mouseover", function(event,d) {
       div.transition()
         .duration(200)
         .style("opacity", .9);
       div .html(
         '<a href= "http://google.com">' + // The first <a> tag
         formatTime(d.date) +
         "</a>" +                          // closing </a> tag
         "<br/>"  + d.close)
         .style("left", (event.pageX) + "px")
         .style("top", (event.pageY - 28) + "px");
       });

  // add the X Axis
  svg.append("g")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x));

  // add the Y Axis
  svg.append("g")
      .call(d3.axisLeft(y));

});

</script>
</body>
	date	close
	1-May-12	58.13
	30-Apr-12	53.98
	27-Apr-12	67.00
	26-Apr-12	89.70
	25-Apr-12	99.00
	24-Apr-12	130.28
	23-Apr-12	166.70
	20-Apr-12	234.98
	19-Apr-12	345.44
	18-Apr-12	443.34
	17-Apr-12	543.70
	16-Apr-12	580.13
	13-Apr-12	605.23
	12-Apr-12	622.77
	11-Apr-12	626.20
	10-Apr-12	628.44
	9-Apr-12	636.23
	5-Apr-12	633.68
	4-Apr-12	624.31
	3-Apr-12	629.32
	2-Apr-12	618.63
	30-Mar-12	599.55
	29-Mar-12	609.86
	28-Mar-12	617.62
	27-Mar-12	614.48
	26-Mar-12	606.98
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style> /* set the CSS */

	.line {
	fill: none;
	stroke: steelblue;
	stroke-width: 2px;
	}

	div.tooltip {
	position: absolute;
	text-align: center;
	width: 60px;
	height: 28px;
	padding: 2px;
	font: 12px sans-serif;
	background: lightsteelblue;
	border: 0px;
	border-radius: 8px;
	}

	</style>
	<body>

	<!-- load the d3.js library -->
	<script src="https://d3js.org/d3.v6.min.js"></script>
	<script>

	// set the dimensions and margins of the graph
	var margin = {top: 20, right: 20, bottom: 30, left: 50},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	// parse the date / time
	var parseTime = d3.timeParse("%d-%b-%y");
	var formatTime = d3.timeFormat("%e %B");

	// set the ranges
	var x = d3.scaleTime().range([0, width]);
	var y = d3.scaleLinear().range([height, 0]);

	// define the line
	var valueline = d3.line()
	.x(function(d) { return x(d.date); })
	.y(function(d) { return y(d.close); });

	var div = d3.select("body").append("div")
	.attr("class", "tooltip")
	.style("opacity", 0);

	// append the svg obgect to the body of the page
	// appends a 'group' element to 'svg'
	// moves the 'group' element to the top left margin
	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 + ")");

	// Get the data
	d3.csv("data.csv").then(function(data) {

	// format the data
	data.forEach(function(d) {
	d.date = parseTime(d.date);
	d.close = +d.close;
	});

	// scale the range of the data
	x.domain(d3.extent(data, function(d) { return d.date; }));
	y.domain([0, d3.max(data, function(d) { return d.close; })]);

	// add the valueline path.
	svg.append("path")
	.data([data])
	.attr("class", "line")
	.attr("d", valueline);

	// add the dots with tooltips
	svg.selectAll("dot")
	.data(data)
	.enter().append("circle")
	.attr("r", 5)
	.attr("cx", function(d) { return x(d.date); })
	.attr("cy", function(d) { return y(d.close); })
	.on("mouseover", function(event,d) {
	div.transition()
	.duration(200)
	.style("opacity", .9);
	div .html(
	'<a href= "http://google.com">' + // The first <a> tag
	formatTime(d.date) +
	"</a>" + // closing </a> tag
	"<br/>" + d.close)
	.style("left", (event.pageX) + "px")
	.style("top", (event.pageY - 28) + "px");
	});

	// add the X Axis
	svg.append("g")
	.attr("transform", "translate(0," + height + ")")
	.call(d3.axisBottom(x));

	// add the Y Axis
	svg.append("g")
	.call(d3.axisLeft(y));

	});

	</script>
	</body>