895 function wobble(x1, y1, x2, y2) {  argument
896   assert(_.all([x1,x2,y1,y2], _.isFinite), 'x1,x2,y1,y2 must be numeric');
899   var factor = Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)) / 25;
911     y: (y2 - y1) * r1 + y1 + yfactor
916     y: (y2 - y1) * r2 + y1 - yfactor
921          ' ' + x2.toFixed(1) + ',' + y2.toFixed(1);      // end point
939 function handLine(x1, y1, x2, y2) {  argument
940   assert(_.all([x1,x2,y1,y2], _.isFinite), 'x1,x2,y1,y2 must be numeric');
941   return 'M' + x1.toFixed(1) + ',' + y1.toFixed(1) + wobble(x1, y1, x2, y2);
1196       var y2 = y1 + signal.height - 2 * SIGNAL_MARGIN - SIGNAL_PADDING;
1200       this.drawLine(aX + SELF_SIGNAL_WIDTH, y1, aX + SELF_SIGNAL_WIDTH, y2, signal.linetype);
1201       this.drawLine(aX + SELF_SIGNAL_WIDTH, y2, aX, y2, signal.linetype, signal.arrowtype);
1450     drawLine: function(x1, y1, x2, y2, linetype, arrowhead) {  argument
1451       var line = this.paper_.line(x1, y1, x2, y2).attr(LINE);
1538     drawLine: function(x1, y1, x2, y2, linetype, arrowhead) {  argument
1539       var line = this.paper_.path(handLine(x1, y1, x2, y2)).attr(LINE);
1583   Raphael.fn.line = function(x1, y1, x2, y2) {  argument
1584     assert(_.all([x1,x2,y1,y2], _.isFinite), 'x1,x2,y1,y2 must be numeric');
1585     return this.path('M{0},{1} L{2},{3}', x1, y1, x2, y2);
1667     drawLine: function(x1, y1, x2, y2, linetype, arrowhead) {  argument
1668       var line = this.paper_.line(x1, y1, x2, y2).attr(LINE);
1734         drawLine: function(x1, y1, x2, y2, linetype, arrowhead) {  argument
1735           var line = this.paper_.path(handLine(x1, y1, x2, y2)).attr(LINE);