denisemauldin/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    Built with blockbuilder.org
forked from tomshanley's block: Animate line and points

  
## index.html
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>

</head>
<body>

  <p>Click the chart to start the animation.</p>

  <div id="line"></div>
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <script type="text/javascript">

    console.clear()

    var w = 700;
    var h = 300;
    var m = 40;

    var svg = d3.select("#line")
      .append("svg")
      .attr("width", w + m + m)
      .attr("height", h + m + m)

    var chart = svg.append("g")
    	.attr("transform", "translate(" + m + "," + m + ")")

    var data = d3.range(11)
    .map(function(){
      return Math.random() * 10
    })


    var x = d3.scaleLinear()
    .domain([0, 10])
    .range([0, w]);

    var y = d3.scaleLinear()
    .domain([0, 10])
    .range([h, 0]);

    var line = d3.line()
      .x(function(d,i) {return x(i);})
      .y(function(d) {return y(d);})

    var clipPath = chart.append("clipPath")
    	.attr("id", "clip")
    	.append("rect")
    	.attr("id", "clip-rect")
    	.attr("x", 0)
    	.attr("y", 0)
    	.attr("width", 0)
    	.attr("height", h)

    var bkdPath = chart.append("path")
      .attr("d", line(data))
      .attr("stroke", "lightgrey")
      .attr("stroke-width", "2")
      .attr("fill", "none")

    var path = chart.append("path")
      .attr("d", line(data))
      .attr("stroke", "orange")
      .attr("stroke-width", "2")
      .attr("fill", "none")
    	.attr("clip-path", "url(#clip)")

    var dataPoint = chart.selectAll('.data-point')
    	.data(data)
    	.enter()
    	.append("g")
    	.attr("transform", function(d, i){
        return "translate(" + x(i) + "," + y(d) + ")"
      })
    	.attr("class", "data-point")
    	.attr("id", (d, i) => "data-point-" + i)
    	.style("opacity", 0)

    dataPoint.append("circle")
    	.attr("r", 5)

    dataPoint.append("text")
    	.text((d, i) => i + ", " + round2dp(d) )
    	.attr("dy", 18)

    var show = false

    svg.on("click", function(){
      d3.select('#clip-rect')
        .transition()
        .duration(10000)
      	.ease(d3.easeLinear)
        .attr("width", function(d){
        	let n = w
        	if (show) {
            show = false
            n = 0
          } else {
            show = true
          }
        	return n
      	})
      	.tween("attr.fill", function() {

          return function(t) {

            let kx = show ?
                Math.floor(t * 10) :
            		Math.ceil((1-t) * 10)

            let id = "#data-point-" + kx

            d3.selectAll(".data-point")
            	.style("opacity", 0)

            d3.select(id)
            	.style("opacity", 1)
          };

        });
    })


    function round2dp(n) {
      return Number.parseFloat(n).toFixed(2);
    }


  </script>
</body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>

	</head>
	<body>

	<p>Click the chart to start the animation.</p>

	<div id="line"></div>
	<script src="https://d3js.org/d3.v4.min.js"></script>
	<script type="text/javascript">

	console.clear()

	var w = 700;
	var h = 300;
	var m = 40;

	var svg = d3.select("#line")
	.append("svg")
	.attr("width", w + m + m)
	.attr("height", h + m + m)

	var chart = svg.append("g")
	.attr("transform", "translate(" + m + "," + m + ")")

	var data = d3.range(11)
	.map(function(){
	return Math.random() * 10
	})


	var x = d3.scaleLinear()
	.domain([0, 10])
	.range([0, w]);

	var y = d3.scaleLinear()
	.domain([0, 10])
	.range([h, 0]);

	var line = d3.line()
	.x(function(d,i) {return x(i);})
	.y(function(d) {return y(d);})

	var clipPath = chart.append("clipPath")
	.attr("id", "clip")
	.append("rect")
	.attr("id", "clip-rect")
	.attr("x", 0)
	.attr("y", 0)
	.attr("width", 0)
	.attr("height", h)

	var bkdPath = chart.append("path")
	.attr("d", line(data))
	.attr("stroke", "lightgrey")
	.attr("stroke-width", "2")
	.attr("fill", "none")

	var path = chart.append("path")
	.attr("d", line(data))
	.attr("stroke", "orange")
	.attr("stroke-width", "2")
	.attr("fill", "none")
	.attr("clip-path", "url(#clip)")

	var dataPoint = chart.selectAll('.data-point')
	.data(data)
	.enter()
	.append("g")
	.attr("transform", function(d, i){
	return "translate(" + x(i) + "," + y(d) + ")"
	})
	.attr("class", "data-point")
	.attr("id", (d, i) => "data-point-" + i)
	.style("opacity", 0)

	dataPoint.append("circle")
	.attr("r", 5)

	dataPoint.append("text")
	.text((d, i) => i + ", " + round2dp(d) )
	.attr("dy", 18)

	var show = false

	svg.on("click", function(){
	d3.select('#clip-rect')
	.transition()
	.duration(10000)
	.ease(d3.easeLinear)
	.attr("width", function(d){
	let n = w
	if (show) {
	show = false
	n = 0
	} else {
	show = true
	}
	return n
	})
	.tween("attr.fill", function() {

	return function(t) {

	let kx = show ?
	Math.floor(t * 10) :
	Math.ceil((1-t) * 10)

	let id = "#data-point-" + kx

	d3.selectAll(".data-point")
	.style("opacity", 0)

	d3.select(id)
	.style("opacity", 1)
	};

	});
	})


	function round2dp(n) {
	return Number.parseFloat(n).toFixed(2);
	}






	</script>
	</body>
	</html>