code: function hline(x,y,destX) {
    return {
      type:'path',
      x:x,y:y,
      path:["M",x,y,"H",destX],
      'stroke-linecap':'butt',
      'stroke-linejoin':'round',
      'stroke':'#333',
      'stroke-width':2,
      _translate:function (x,y) {
        var p=this.path;
        p[1]+=x;p[2]+=y;p[4]+=x;
      },
    };
  }
docs: return element config