AnimatedOpenSAPLines

This experiment makes the lines look like they are being drawn live (animated paths). What's really happening is a #FFF rect is drawn and it's width is manipulated, in the same way a curtain reveals the stage on Broadway. Built with D3.js.

forked from markmarkoh's block: AnimatedOpenSAPLines

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

body {
  font: 10px sans-serif;
  margin: 0;
}

path.line {
  fill: none;
  stroke: #666;
  stroke-width: 1.5px;
}

path.area {
  fill: #e7e7e7;
}

.axis {
  shape-rendering: crispEdges;
}

.x.axis line {
  stroke: #fff;
}

.x.axis .minor {
  stroke-opacity: .5;
}

.x.axis path {
  display: none;
}

.y.axis line, .y.axis path {
  fill: none;
  stroke: #000;
}
.guideline {
  margin-right: 100px;
  float: right;
}

</style>
<body>
<label class="guideline">
  Show Guideline & Curtain
  <input type="checkbox" id="show_guideline" />
</label>
<svg></svg>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>

var margin = {top: 80, right: 80, bottom: 80, left: 80},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var parse = d3.time.format("%Y%m%d-%H:%M").parse;

// Scales and axes. Note the inverted domain for the y-scale: bigger is up!
var x = d3.time.scale().range([0, width]),
    y = d3.scale.linear().range([height, 0]),
    xAxis = d3.svg.axis().scale(x).tickSize(-height).ticks(18).tickSubdivide(true),
    yAxis =
 d3.svg.axis().scale(y).ticks(4).orient("right");

// An area generator, for the light fill.
var area = d3.svg.area()
    .interpolate("monotone")
    .x(function(d) { return x(d.date); })
    .y0(height)
    .y1(function(d) { return y(d.price); });

// A line generator, for the dark stroke.
var line = d3.svg.line()
    .interpolate("monotone")
    .x(function(d) { return x(d.date); })
//.y(function(d) { return y(+d.delta); });
.y(function(d) { console.log(d.course + d.delta); return y(d.value); });

var oldvalue;
  
d3.csv("readme.csv", type, function(error, data) {

// Filter to one symbol; the S&P 500.
  var values = data.filter(function(d) {
    return d.course == "UI5";;
  });

var msft = data.filter(function(d) {
    return d.course == "Entrepreneurs";
  });

var ibm = data.filter(function(d) {
    return d.course == 'SoftwareDesign';
  });

// Compute the minimum and maximum date, and the maximum price.
  x.domain([values[0].date, values[values.length - 1].date]);
  y.domain([0, d3.max(values, function(d) { return d.value; })]).nice();

// Add an SVG element with the desired dimensions and margin.
  var svg = d3.select("svg")
      .attr("width", width + margin.left + margin.right)
      .attr("height", height + margin.top + margin.bottom)
    .append("g")
      .attr("transform", "translate(" + margin.left + "," + margin.top + ")")

// Add the clip path.
  svg.append("clipPath")
      .attr("id", "clip")
    .append("rect")
      .attr("width", width)
      .attr("height", height);

// Add the x-axis.
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

// Add the y-axis.
  svg.append("g")
      .attr("class", "y axis")
      .attr("transform", "translate(" + width + ",0)")
      .call(yAxis);

var colors = d3.scale.category10();
  svg.selectAll('.line')
    .data([values, msft, ibm, course4, course5, digiboard])
    .enter()
      .append('path')
        .attr('class', 'line')
        .style('stroke', function(d) {
          return colors(Math.random() * 50);
        })
        .attr('clip-path', 'url(#clip)')
        .attr('d', function(d) {
          return line(d);
        })

/*var level25000 = svg.append('rect')
    .attr('x', -1 * width)
    .attr('y', -1 * height)
    .attr('height', height)
    .attr('width', width)
    .attr('class', 'curtain')
    .attr('transform', 'rotate(90)')
    .style('fill', '#ffffff')
  */
  
  
  /* Add 'curtain' rectangle to hide entire graph */
  var curtain = svg.append('rect')
    .attr('x', -1 * width)
    .attr('y', -1 * height)
    .attr('height', height)
    .attr('width', width)
    .attr('class', 'curtain')
    .attr('transform', 'rotate(180)')
    .style('fill', '#ffffff')

/* Optionally add a guideline */
  var guideline = svg.append('line')
    .attr('stroke', '#333')
    .attr('stroke-width', 5)
    .attr('class', 'guide')
    .attr('x1', 1)
    .attr('y1', 1)
    .attr('x2', 1)
    .attr('y2', height)

/* Create a shared transition for anything we're animating */
  var t = svg.transition()
    .delay(750)
    .duration(6000)
    .ease('linear')
    .each('end', function() {
      d3.select('line.guide')
        .transition()
        .style('opacity', 0)
        .remove()
    });

t.select('rect.curtain')
    .attr('width', 0);
/*  t.select('rect.level25000')
    .attr('width', 0); */
  t.select('line.guide')
    .attr('transform', 'translate(' + width + ', 0)')

d3.select("#show_guideline").on("change", function(e) {
    guideline.attr('stroke-width', this.checked ? 1 : 0);
    curtain.attr("opacity", this.checked ? 0.75 : 1);
  })

});

// Parse dates and numbers. We assume values are sorted by date.
function type(d) {
  d.date = parse(d.date);
  d.value = +d.value;
//  d.delta = +d.value - oldvalue;
//  console.log(d.delta + "= " + +d.value + "-" + oldvalue)
//  oldvalue = +d.value;
  return d;
}

</script>

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js