EmbraceLife/.block

## .block
license: gpl-3.0

## README.md

      
    Raw
  

              README.md
            
          
    Built with blockbuilder.org
forked from EmbraceLife's block: 4. barChart3.b.v3
forked from EmbraceLife's block: 4. barChart3.b.v4
forked from EmbraceLife's block: 4. barChart3.c.v3
forked from EmbraceLife's block: 4. barChart3.c.v4

  
## data.tsv

          
            letter
            frequency

            
              A
              .08167

            
              B
              .01492

            
              C
              .02782

            
              D
              .04253

            
              E
              .12702

            
              F
              .02288

            
              G
              .02015

            
              H
              .06094

            
              I
              .06966

            
              J
              .00153

            
              K
              .00772

            
              L
              .04025

            
              M
              .02406

            
              N
              .06749

            
              O
              .07507

            
              P
              .01929

            
              Q
              .00095

            
              R
              .05987

            
              S
              .06327

            
              T
              .09056

            
              U
              .02758

            
              V
              .00978

            
              W
              .02360

            
              X
              .00150

            
              Y
              .01974

            
              Z
              .00074

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<script src="//d3js.org/d3.v4.min.js"></script>


<style>

/* must: rect:hover, without space */
.bar rect:hover {
  fill: brown;
}

.bar rect {
    fill: gray;
  }

.bar text {
    fill: green;
  }

.axis {
  font: 10px sans-serif;
}

.axis text {
  fill: cyan;
}

/*  path here is axis line  */
.axis path {
	fill: none;
  stroke: yellow;
}

/*  line here is tick line  */
.axis line {
  stroke: red;
  shape-rendering: crispEdges;
}

/*  specify x-axis  */
.x.axis path {
/* make it invisible   */
  display: none;
}

</style>
<body>

<script>

var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;


// ---- create a svg upon body --------------
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 + ")");
// SVG with full width&height => g at topLeft corner of inner canvas => var svg


var yScale = d3.scaleLinear()
    .range([height, 0]);


var xScale = d3.scaleBand()
    .rangeRound([0, width]).padding(.2);


var xAxis = d3.axisBottom(xScale);

var yAxis = d3.axisLeft(yScale)
// create 10 ticks with % as post fix
    					.ticks(10,"%");


function type(d) {
  d.frequency = +d.frequency;
  return d;
}


d3.tsv("data.tsv", type, function(error, data) {
  if (error) throw error;


  xScale.domain(data.map(function(d) { return d.letter; }));


  yScale.domain([0, d3.max(data, function(d) { return d.frequency; })]);


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


var yaxis =  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)


// ---- add label to y-axis
var ylabel = yaxis
              .append("text")
                .attr("transform", "rotate(-90)")
                .attr("y", 6)
                .attr("fill", "red")
                .attr("dy", ".71em")
                .style("text-anchor", "end")
                .text("Frequency");


// ----  select all existing g placeholders for holding rects and texts ----
//   1. as placeholders for x-axis and y-axis and inner canvas are all g
//   2. therefore, we can't selectAll("g") for making rects and text
//   3. so, selectAll only g with className "bar"
//   4. if not exist, then create g placeholders and name them "bar"
var bars = svg.selectAll(".bar").data(data)
							.enter().append("g")
							.attr("class", "bar")
							.attr("transform", function(d) { return "translate(" + xScale(d.letter) + ", " + yScale(d.frequency) + ")"; });


var rects = bars.append("rect")
// ---- add a className for easy selecting
								  .attr("class", "bar")
									.attr("width", xScale.bandwidth())
									.attr("height", function(d){return height-yScale(d.frequency);})
									.attr("fill", "steelblue");


var texts = bars.append("text")
									.attr("class", "bar")
									.text(function(d){return d.letter;})
									.attr("x", xScale.bandwidth()/2)
									.attr("y", -3)
									.attr("dy", "-0.1em")// trial error
									.attr("fill", "orange")
									.attr("text-anchor", "middle");


})


</script>
	letter	frequency
	A	.08167
	B	.01492
	C	.02782
	D	.04253
	E	.12702
	F	.02288
	G	.02015
	H	.06094
	I	.06966
	J	.00153
	K	.00772
	L	.04025
	M	.02406
	N	.06749
	O	.07507
	P	.01929
	Q	.00095
	R	.05987
	S	.06327
	T	.09056
	U	.02758
	V	.00978
	W	.02360
	X	.00150
	Y	.01974
	Z	.00074
	<!DOCTYPE html>
	<meta charset="utf-8">
	<script src="//d3js.org/d3.v4.min.js"></script>


	<style>

	/* must: rect:hover, without space */
	.bar rect:hover {
	fill: brown;
	}

	.bar rect {
	fill: gray;
	}

	.bar text {
	fill: green;
	}

	.axis {
	font: 10px sans-serif;
	}

	.axis text {
	fill: cyan;
	}

	/* path here is axis line */
	.axis path {
	fill: none;
	stroke: yellow;
	}

	/* line here is tick line */
	.axis line {
	stroke: red;
	shape-rendering: crispEdges;
	}

	/* specify x-axis */
	.x.axis path {
	/* make it invisible */
	display: none;
	}

	</style>
	<body>

	<script>

	var margin = {top: 20, right: 20, bottom: 30, left: 40},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;


	// ---- create a svg upon body --------------
	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 + ")");
	// SVG with full width&height => g at topLeft corner of inner canvas => var svg


	var yScale = d3.scaleLinear()
	.range([height, 0]);




	var xScale = d3.scaleBand()
	.rangeRound([0, width]).padding(.2);


	var xAxis = d3.axisBottom(xScale);

	var yAxis = d3.axisLeft(yScale)
	// create 10 ticks with % as post fix
	.ticks(10,"%");





	function type(d) {
	d.frequency = +d.frequency;
	return d;
	}





	d3.tsv("data.tsv", type, function(error, data) {
	if (error) throw error;


	xScale.domain(data.map(function(d) { return d.letter; }));


	yScale.domain([0, d3.max(data, function(d) { return d.frequency; })]);




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




	var yaxis = svg.append("g")
	.attr("class", "y axis")
	.call(yAxis)


	// ---- add label to y-axis
	var ylabel = yaxis
	.append("text")
	.attr("transform", "rotate(-90)")
	.attr("y", 6)
	.attr("fill", "red")
	.attr("dy", ".71em")
	.style("text-anchor", "end")
	.text("Frequency");


	// ---- select all existing g placeholders for holding rects and texts ----
	// 1. as placeholders for x-axis and y-axis and inner canvas are all g
	// 2. therefore, we can't selectAll("g") for making rects and text
	// 3. so, selectAll only g with className "bar"
	// 4. if not exist, then create g placeholders and name them "bar"
	var bars = svg.selectAll(".bar").data(data)
	.enter().append("g")
	.attr("class", "bar")
	.attr("transform", function(d) { return "translate(" + xScale(d.letter) + ", " + yScale(d.frequency) + ")"; });






	var rects = bars.append("rect")
	// ---- add a className for easy selecting
	.attr("class", "bar")
	.attr("width", xScale.bandwidth())
	.attr("height", function(d){return height-yScale(d.frequency);})
	.attr("fill", "steelblue");


	var texts = bars.append("text")
	.attr("class", "bar")
	.text(function(d){return d.letter;})
	.attr("x", xScale.bandwidth()/2)
	.attr("y", -3)
	.attr("dy", "-0.1em")// trial error
	.attr("fill", "orange")
	.attr("text-anchor", "middle");


	})



	</script>