text: ;(function() {
    'use strict';
  
    sigma.utils.pkg('sigma.canvas.edges');
  
    /**
     * The default edge renderer. It renders the edge as a simple line.
     *
     * @param  {object}                   edge         The edge object.
     * @param  {object}                   source node  The edge source node.
     * @param  {object}                   target node  The edge target node.
     * @param  {CanvasRenderingContext2D} context      The canvas context.
     * @param  {configurable}             settings     The settings function.
     */
    sigma.canvas.edges.def = function(edge, source, target, context, settings) {
      var color = edge.color,
          prefix = settings('prefix') || '',
          size = edge[prefix + 'size'] === undefined ? edge[prefix + 'size'] : 1,
          edgeColor = settings('edgeColor'),
          defaultNodeColor = settings('defaultNodeColor'),
          defaultEdgeColor = settings('defaultEdgeColor');
  
      if (!color)
        switch (edgeColor) {
          case 'source':
            color = source.color || defaultNodeColor;
            break;
          case 'target':
            color = target.color || defaultNodeColor;
            break;
          default:
            color = defaultEdgeColor;
            break;
        }
  
      context.strokeStyle = color;
      context.lineWidth = size;
      context.beginPath();
      context.moveTo(
        source[prefix + 'x'],
        source[prefix + 'y']
      );
      context.lineTo(
        target[prefix + 'x'],
        target[prefix + 'y']
      );
      context.stroke();
    };
  })();
  