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 was written using d3.js v5 and is a follow on to the simple scatter plot example with tooltips here.
This graph is part of the code samples for the update to the book D3 Tips and Tricks to version 5 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.v5.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(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", (d3.event.pageX) + "px")
         .style("top", (d3.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>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	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.v5.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(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", (d3.event.pageX) + "px")
	.style("top", (d3.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>