小编Hun*_*one的帖子

(function($) {
  $.fn.connect = function(param) {
    var _canvas;
    var _ctx;
    var _lines = new Array(); //This array will store all lines (option)
    var _me = this;
    var _parent = param || document;
    var _lengthLines = $(_parent + ' .group1 .node').length;
    var _selectFirst = null;
    //Initialize Canvas object

    _canvas = $('<canvas/>')
      .attr('width', $(_me).width())
      .attr('height', $(_me).height())
      .css('position', 'absolute');
    $(_parent).prepend(_canvas);
    //$(_canvas).insertBefore(_parent);
    this.drawLine = function(option) {
      //It will push line to array.
      _lines.push(option);
      this.connect(option);

    };

    this.drawAllLine = function(option) { …