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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                <div class="wrapper">
  <canvas id='c'></canvas>
  <div class="label">text</div>
</div>
<p>Please mouse over the dots</p>
              
            
!

CSS

              
                body {
  margin: 0;
  overflow: hidden;
  background: #152B39;
  font-family: Courier, monospace;
  font-size: 14px;
  color:#ccc; 
}

.wrapper {
  display: block;
  margin: 5em auto;
  border: 1px solid #555;
  width: 700px;
  height: 350px;
  position: relative;
}
p{text-align:center;}
.label {
  height: 1em;
  padding: .3em;
  background: rgba(255, 255, 255, .8);
  position: absolute;
  display: none;
  color:#333;
  
}
              
            
!

JS

              
                var label = document.querySelector(".label");
var c = document.getElementById("c");
var ctx = c.getContext("2d");
var cw = c.width = 700;
var ch = c.height = 350;
var cx = cw / 2,
  cy = ch / 2;
var rad = Math.PI / 180;
var frames = 0;

ctx.lineWidth = 1;
ctx.strokeStyle = "#999";
ctx.fillStyle = "#ccc";
ctx.font = "14px monospace";

var grd = ctx.createLinearGradient(0, 0, 0, cy);
grd.addColorStop(0, "hsla(167,72%,60%,1)");
grd.addColorStop(1, "hsla(167,72%,60%,0)");

var oData = {
  "2008": 10,
  "2009": 39.9,
  "2010": 17,
  "2011": 30.0,
  "2012": 5.3,
  "2013": 38.4,
  "2014": 15.7,
  "2015": 9.0
};

var valuesRy = [];
var propsRy = [];
for (var prop in oData) {

  valuesRy.push(oData[prop]);
  propsRy.push(prop);
}


var vData = 4;
var hData = valuesRy.length;
var offset = 50.5; //offset chart axis
var chartHeight = ch - 2 * offset;
var chartWidth = cw - 2 * offset;
var t = 1 / 7; // curvature : 0 = no curvature 
var speed = 2; // for the animation

var A = {
  x: offset,
  y: offset
}
var B = {
  x: offset,
  y: offset + chartHeight
}
var C = {
  x: offset + chartWidth,
  y: offset + chartHeight
}

/*
      A  ^
	    |  |  
	    + 25
	    |
	    |
	    |
	    + 25  
      |__|_________________________________  C
      B
*/

// CHART AXIS -------------------------
ctx.beginPath();
ctx.moveTo(A.x, A.y);
ctx.lineTo(B.x, B.y);
ctx.lineTo(C.x, C.y);
ctx.stroke();

// vertical ( A - B )
var aStep = (chartHeight - 50) / (vData);

var Max = Math.ceil(arrayMax(valuesRy) / 10) * 10;
var Min = Math.floor(arrayMin(valuesRy) / 10) * 10;
var aStepValue = (Max - Min) / (vData);
console.log("aStepValue: " + aStepValue); //8 units
var verticalUnit = aStep / aStepValue;

var a = [];
ctx.textAlign = "right";
ctx.textBaseline = "middle";
for (var i = 0; i <= vData; i++) {

  if (i == 0) {
    a[i] = {
      x: A.x,
      y: A.y + 25,
      val: Max
    }
  } else {
    a[i] = {}
    a[i].x = a[i - 1].x;
    a[i].y = a[i - 1].y + aStep;
    a[i].val = a[i - 1].val - aStepValue;
  }
  drawCoords(a[i], 3, 0);
}

//horizontal ( B - C )
var b = [];
ctx.textAlign = "center";
ctx.textBaseline = "hanging";
var bStep = chartWidth / (hData + 1);

for (var i = 0; i < hData; i++) {
  if (i == 0) {
    b[i] = {
      x: B.x + bStep,
      y: B.y,
      val: propsRy[0]
    };
  } else {
    b[i] = {}
    b[i].x = b[i - 1].x + bStep;
    b[i].y = b[i - 1].y;
    b[i].val = propsRy[i]
  }
  drawCoords(b[i], 0, 3)
}

function drawCoords(o, offX, offY) {
  ctx.beginPath();
  ctx.moveTo(o.x - offX, o.y - offY);
  ctx.lineTo(o.x + offX, o.y + offY);
  ctx.stroke();

  ctx.fillText(o.val, o.x - 2 * offX, o.y + 2 * offY);
}
//----------------------------------------------------------

// DATA
var oDots = [];
var oFlat = [];
var i = 0;

for (var prop in oData) {
  oDots[i] = {}
  oFlat[i] = {}

  oDots[i].x = b[i].x;
  oFlat[i].x = b[i].x;

  oDots[i].y = b[i].y - oData[prop] * verticalUnit - 25;
  oFlat[i].y = b[i].y - 25;

  oDots[i].val = oData[b[i].val];
  
  i++
}



///// Animation Chart ///////////////////////////
//var speed = 3;
function animateChart() {
  requestId = window.requestAnimationFrame(animateChart);
  frames += speed; //console.log(frames)
  ctx.clearRect(60, 0, cw, ch - 60);
  
  for (var i = 0; i < oFlat.length; i++) {
    if (oFlat[i].y > oDots[i].y) {
      oFlat[i].y -= speed;
    }
  }
  drawCurve(oFlat);
  for (var i = 0; i < oFlat.length; i++) {
      ctx.fillText(oDots[i].val, oFlat[i].x, oFlat[i].y - 25);
      ctx.beginPath();
      ctx.arc(oFlat[i].x, oFlat[i].y, 3, 0, 2 * Math.PI);
      ctx.fill();
    }

  if (frames >= Max * verticalUnit) {
    window.cancelAnimationFrame(requestId);
    
  }
}
requestId = window.requestAnimationFrame(animateChart);

/////// EVENTS //////////////////////
c.addEventListener("mousemove", function(e) {
  label.innerHTML = "";
  label.style.display = "none";
  this.style.cursor = "default";

  var m = oMousePos(this, e);
  for (var i = 0; i < oDots.length; i++) {

    output(m, i);
  }

}, false);

function output(m, i) {
  ctx.beginPath();
  ctx.arc(oDots[i].x, oDots[i].y, 20, 0, 2 * Math.PI);
  if (ctx.isPointInPath(m.x, m.y)) {
    //console.log(i);
    label.style.display = "block";
    label.style.top = (m.y + 10) + "px";
    label.style.left = (m.x + 10) + "px";
    label.innerHTML = "<strong>" + propsRy[i] + "</strong>: " + valuesRy[i] + "%";
    c.style.cursor = "pointer";
  }
}

// CURVATURE
function controlPoints(p) {
  // given the points array p calculate the control points
  var pc = [];
  for (var i = 1; i < p.length - 1; i++) {
    var dx = p[i - 1].x - p[i + 1].x; // difference x
    var dy = p[i - 1].y - p[i + 1].y; // difference y
    // the first control point
    var x1 = p[i].x - dx * t;
    var y1 = p[i].y - dy * t;
    var o1 = {
      x: x1,
      y: y1
    };

    // the second control point
    var x2 = p[i].x + dx * t;
    var y2 = p[i].y + dy * t;
    var o2 = {
      x: x2,
      y: y2
    };

    // building the control points array
    pc[i] = [];
    pc[i].push(o1);
    pc[i].push(o2);
  }
  return pc;
}

function drawCurve(p) {

  var pc = controlPoints(p); // the control points array

  ctx.beginPath();
  //ctx.moveTo(p[0].x, B.y- 25);
  ctx.lineTo(p[0].x, p[0].y);
  // the first & the last curve are quadratic Bezier
  // because I'm using push(), pc[i][1] comes before pc[i][0]
  ctx.quadraticCurveTo(pc[1][1].x, pc[1][1].y, p[1].x, p[1].y);

  if (p.length > 2) {
    // central curves are cubic Bezier
    for (var i = 1; i < p.length - 2; i++) {
      ctx.bezierCurveTo(pc[i][0].x, pc[i][0].y, pc[i + 1][1].x, pc[i + 1][1].y, p[i + 1].x, p[i + 1].y);
    }
    // the first & the last curve are quadratic Bezier
    var n = p.length - 1;
    ctx.quadraticCurveTo(pc[n - 1][0].x, pc[n - 1][0].y, p[n].x, p[n].y);
  }

  //ctx.lineTo(p[p.length-1].x, B.y- 25);
  ctx.stroke();
  ctx.save();
  ctx.fillStyle = grd;
  ctx.fill();
  ctx.restore();
}

function arrayMax(array) {
  return Math.max.apply(Math, array);
};

function arrayMin(array) {
  return Math.min.apply(Math, array);
};

function oMousePos(canvas, evt) {
  var ClientRect = canvas.getBoundingClientRect();
  return { //objeto
    x: Math.round(evt.clientX - ClientRect.left),
    y: Math.round(evt.clientY - ClientRect.top)
  }
}
              
            
!
999px

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