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CSS

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HTML 

              
                <h1>AngularJS Graph with animated SVG line</h1>

<div ng-app="graphApp">
  <div ng-controller="graphController as graph">
  
  <div class="graph" style="width:{{width}}px; height:{{height}}px;" >
    
    <div class="y" style="width:{{height}}px;">{{yAxis}}</div>
    
    <div class="x">{{xAxis}}</div>
    <svg height="{{height}}" width="100%">
      <line class="line{{$index}}" ng-repeat="point in points" x1="{{width / maxX * $index }}" y1="{{points[$index - 1].yValue / maxY * height}}" x2="{{width / maxX * ($index + 1)}}" y2="{{point.yValue / maxY * height}}" />
    </svg>
    <div class="dot dot{{$index}}" ng-repeat="point in points" style="bottom:calc({{point.yValue}}/{{maxY}}*{{height}}px - 5px); left:calc({{point.xValue}}/{{maxX}}*{{width}}px - 5px);" data-title="{{point.label}}: {{point.yValue}}"></div>
    
  </div>
</div>
</div>

<p>It always struck me that AngularJS could be used as a nice simple tool for visualising data.</p>

<p>Here I use ng-repeat and data binding for inline styling and controlling SVG</p>
!

CSS 

              
                * {box-sizing:border-box;}

h1 {
  color: #D07371;
}

body {
  font-size:1.1em;
  text-align:center;
  background:#F4F0DC;
  color:#444;
}

p {
  width:60%;
  margin:20px auto;
}

.graph {
  position:relative;
  margin:50px auto;
  background:#D9F2E6; 
}

svg {
  transform: rotateX(180deg);
  position:relative;
}

.y {
  font-weight:bold;
  border-bottom:1px solid #71CBD0;
  position:absolute;
  text-align:center;
  padding: 10px;
  transform: rotate(-90deg);
  transform-origin: bottom left;
  bottom:0;
  color: #D07371;
}

.x {
  font-weight:bold;
  border-top:1px solid #71CBD0;
  position:absolute;
  width: 100%;
  text-align:center;
  padding: 10px;
  top:100%;
  color:#D07371;
}

.dot {
  border-radius:50%;
  width:0px;
  height:0px;
  position:absolute;
  background:#71CBD0;
  cursor: pointer;
  animation: dots 100ms linear forwards;
  &:after {
    content:attr(data-title);
    display:inline-block;
    white-space: nowrap;
    overflow:hidden;
    background:#D07371;
    color:white;
    position:absolute;
    padding:10px;
    left:150%;
    top:-15px;
    width:0;
    opacity:0;
    border-radius:3px;
    font-weight:700;
  }
  
  &:hover {
    background:#D07371; 
     
    &:after {
      width:auto;
      opacity:1;
      z-index:9999;
    }
  }
}

line {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  stroke:#D07371;
  stroke-width:2;
  animation: dash 500ms linear forwards;
}

.lines(11);

.lines(@n, @i: 0, @a :0) when (@i =< @n) {
  .line@{i} {
    animation-delay:(@a+1000)*1ms;
  }
  .dot@{i} {
    animation-delay:(@a+1150)*1ms;
  }
  .lines(@n, (@i + 1), (@a + 150));
}

@keyframes dash {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes dots {  
  0% {
    width:0px;
    height:0px;
  }
  
  50% {
    width:10px;
    height:10px;
  }
  
  75% {
    width:15px;
    height:15px;
  }
  
  100% {
    width:10px;
    height:10px;
  }
}
!

JS 

              
                (function(){

  var app = angular.module('graphApp',[]);
  
  app.controller('graphController', function($scope){
    
    // Options
    
    $scope.width = 600;
    $scope.height = 350;
    $scope.yAxis = 'Sales';
    $scope.xAxis = '2014';
    
    // Data 

    $scope.points = [
      {
      label: 'January',
      xValue: 1,
      yValue: 36
      },
      {
      label: 'February',
      xValue: 2,
      yValue: 54
      },
      {
      label: 'March',
      xValue: 3,
      yValue: 62
      },
      {
      label: 'April',
      xValue: 4,
      yValue: 82
      },
      {
      label: 'May',
      xValue: 5,
      yValue: 96
      },
      {
      label: 'June',
      xValue: 6,
      yValue: 104
      },
      {
      label: 'July',
      xValue: 7,
      yValue: 122
      },
      {
      label: 'August',
      xValue: 8,
      yValue: 152
      },
      {
      label: 'September',
      xValue: 9,
      yValue: 176
      },
      {
      label: 'October',
      xValue: 10,
      yValue: 180
      },
      {
      label: 'November',
      xValue: 11,
      yValue: 252
      },
      {
      label: 'December',
      xValue: 12,
      yValue: 342
      }
    ];
    
    // Find Maximum X & Y Axis Values - this is used to position the points as a percentage of the maximum
    $scope.maxY = 0;
    $scope.maxX = 0;
    
    var arrLength = $scope.points.length;
    for (var i = 0; i < arrLength; i++) {
        // Find Maximum X Axis Value
      	if ($scope.points[i].yValue > $scope.maxY)
        $scope.maxY = $scope.points[i].yValue;
      	// Find Maximum Y Axis Value
      	if ($scope.points[i].xValue > $scope.maxX)
        $scope.maxX = $scope.points[i].xValue;
    }
   
  // End Controller  
	});

})();
!
999px

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