lydiawawa/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    Built with blockbuilder.org

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

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  margin: auto;
  position: relative;
  width: 960px;
}

text {
  font: 10px sans-serif;
}

form {
  position: absolute;
  right: 10px;
  top: 10px;
}

</style>
<form>
  <label><input type="radio" name="dataset" value="apples" checked> Apples</label>
  <label><input type="radio" name="dataset" value="oranges"> Oranges</label>
</form>
<script src="http://d3js.org/d3.v4.min.js"></script>
<script>

var dataset = {
  apples: [53245, 28479, 19697, 24037, 40245],
  oranges: [200, 200, 200, 200] // previously 5 values, now only 4
};

var width = 960,
  height = 500,
  radius = Math.min(width, height) / 2;

var enterAntiClockwise = {
  startAngle: Math.PI * 2,
  endAngle: Math.PI * 2
};

var color = d3.scaleOrdinal().range(["#0079BB", "#9E519F"]);

var pie = d3.pie()
  .sort(null);

var arc = d3.arc()
  .innerRadius(radius - 100)
  .outerRadius(radius - 20);

var svg = d3.select("body").append("svg")
  .attr("width", width)
  .attr("height", height)
  .append("g")
  .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");

var path = svg.selectAll("path")
  .data(pie(dataset.apples))
  .enter().append("path")
  .attr("fill", function(d, i) { return color(i); })
  .attr("d", arc)
  .each(function(d) { this._current = d; }); // store the initial values

d3.selectAll("input").on("change", change);

var timeout = setTimeout(function() {
  d3.select("input[value=\"oranges\"]").property("checked", true).each(change);
}, 2000);

function change() {
  clearTimeout(timeout);
  path = path.data(pie(dataset[this.value])); // update the data
  // set the start and end angles to Math.PI * 2 so we can transition
  // anticlockwise to the actual values later
  path.enter().append("path")
      .attr("fill", function (d, i) {
        return color(i);
      })
      .attr("d", arc(enterAntiClockwise))
      .each(function (d) {
        this._current = {
          data: d.data,
          value: d.value,
          startAngle: enterAntiClockwise.startAngle,
          endAngle: enterAntiClockwise.endAngle
        };
      }); // store the initial values

  path.exit()
      .transition()
      .duration(750)
      .attrTween('d', arcTweenOut)
      .remove() // now remove the exiting arcs

  path.transition().duration(750).attrTween("d", arcTween); // redraw the arcs
}

// Store the displayed angles in _current.
// Then, interpolate from _current to the new angles.
// During the transition, _current is updated in-place by d3.interpolate.
function arcTween(a) {
  function arcTween(a) {
  var i = d3.line().curve(this._current, a);
  this._current = i(0);
  return function(t) {
  return arc(i(t));
  };
}
// Interpolate exiting arcs start and end angles to Math.PI * 2
// so that they 'exit' at the end of the data
function arcTweenOut(a) {
  var i = d3.line().curve(this._current, {startAngle: Math.PI * 2, endAngle: Math.PI * 2, value: 0});
  this._current = i(0);
  return function (t) {
    return arc(i(t));
  };
}
  var i = d3.line().curve(this._current, a);
  this._current = i(0);
  return function(t) {
  return arc(i(t));
  };
}
// Interpolate exiting arcs start and end angles to Math.PI * 2
// so that they 'exit' at the end of the data
function arcTweenOut(a) {
  var i = d3.line().curve(this._current, {startAngle: Math.PI * 2, endAngle: Math.PI * 2, value: 0});
  this._current = i(0);
  return function (t) {
    return arc(i(t));
  };
}

</script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	margin: auto;
	position: relative;
	width: 960px;
	}

	text {
	font: 10px sans-serif;
	}

	form {
	position: absolute;
	right: 10px;
	top: 10px;
	}

	</style>
	<form>
	<label><input type="radio" name="dataset" value="apples" checked> Apples</label>
	<label><input type="radio" name="dataset" value="oranges"> Oranges</label>
	</form>
	<script src="http://d3js.org/d3.v4.min.js"></script>
	<script>

	var dataset = {
	apples: [53245, 28479, 19697, 24037, 40245],
	oranges: [200, 200, 200, 200] // previously 5 values, now only 4
	};

	var width = 960,
	height = 500,
	radius = Math.min(width, height) / 2;

	var enterAntiClockwise = {
	startAngle: Math.PI * 2,
	endAngle: Math.PI * 2
	};

	var color = d3.scaleOrdinal().range(["#0079BB", "#9E519F"]);

	var pie = d3.pie()
	.sort(null);

	var arc = d3.arc()
	.innerRadius(radius - 100)
	.outerRadius(radius - 20);

	var svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height)
	.append("g")
	.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");

	var path = svg.selectAll("path")
	.data(pie(dataset.apples))
	.enter().append("path")
	.attr("fill", function(d, i) { return color(i); })
	.attr("d", arc)
	.each(function(d) { this._current = d; }); // store the initial values

	d3.selectAll("input").on("change", change);

	var timeout = setTimeout(function() {
	d3.select("input[value=\"oranges\"]").property("checked", true).each(change);
	}, 2000);

	function change() {
	clearTimeout(timeout);
	path = path.data(pie(dataset[this.value])); // update the data
	// set the start and end angles to Math.PI * 2 so we can transition
	// anticlockwise to the actual values later
	path.enter().append("path")
	.attr("fill", function (d, i) {
	return color(i);
	})
	.attr("d", arc(enterAntiClockwise))
	.each(function (d) {
	this._current = {
	data: d.data,
	value: d.value,
	startAngle: enterAntiClockwise.startAngle,
	endAngle: enterAntiClockwise.endAngle
	};
	}); // store the initial values

	path.exit()
	.transition()
	.duration(750)
	.attrTween('d', arcTweenOut)
	.remove() // now remove the exiting arcs

	path.transition().duration(750).attrTween("d", arcTween); // redraw the arcs
	}

	// Store the displayed angles in _current.
	// Then, interpolate from _current to the new angles.
	// During the transition, _current is updated in-place by d3.interpolate.
	function arcTween(a) {
	function arcTween(a) {
	var i = d3.line().curve(this._current, a);
	this._current = i(0);
	return function(t) {
	return arc(i(t));
	};
	}
	// Interpolate exiting arcs start and end angles to Math.PI * 2
	// so that they 'exit' at the end of the data
	function arcTweenOut(a) {
	var i = d3.line().curve(this._current, {startAngle: Math.PI * 2, endAngle: Math.PI * 2, value: 0});
	this._current = i(0);
	return function (t) {
	return arc(i(t));
	};
	}
	var i = d3.line().curve(this._current, a);
	this._current = i(0);
	return function(t) {
	return arc(i(t));
	};
	}
	// Interpolate exiting arcs start and end angles to Math.PI * 2
	// so that they 'exit' at the end of the data
	function arcTweenOut(a) {
	var i = d3.line().curve(this._current, {startAngle: Math.PI * 2, endAngle: Math.PI * 2, value: 0});
	this._current = i(0);
	return function (t) {
	return arc(i(t));
	};
	}

	</script>