Grid

Generate a 2d grid.
          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <script src="../build/ogma.min.js"></script>
  <style>
    #graph-container { top: 0; bottom: 0; left: 0; right: 0; position: absolute; margin: 0; overflow: hidden; }
    #load {
      position: absolute;
      top: 0;
      left: 0;
      padding: 5px;
      color: #fff;
      background: #141229;
      font-size: 12px;
      font-family: monospace;
    }
  </style>
</head>
<body>
  <div id="graph-container"></div>
  <span id="load">Loading...</span>

<script>
'use strict';

var COLORS = ['#161344','#3f1c4c','#632654','#86315b','#a93c63','#cd476a','#f35371'];
var ROWS = 10;
var COLUMNS = 7;

var ogma = new Ogma({
  container: 'graph-container'
});

ogma.generate.grid({ rows: ROWS, columns: COLUMNS })
  .then(function (graph) {

  // Assign the graph to Ogma
  ogma.setGraph(graph);
  ogma.view.locateGraph();

  document.getElementById('load').parentElement.removeChild(document.getElementById('load'));

  // Color by column
  for (var i = 0 ; i < COLUMNS ; i++) {
    for (var j = 0 ; j < ROWS ; j++) {
      var n = j * COLUMNS + i;
      ogma.getNode(n).setAttribute('color', COLORS[i % COLORS.length]);
    }
  }
});

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