;
            var x1 = x_padding + R + R * Math.cos(startAngle) + xoffset;

            for (var j = 0; j < tile.q.neighbors.length; j++) {
                var destAngle = alpha * tile.q.neighbors[j].dest.which + angleOffset;
                var y2 = y_padding + R + R * Math.sin(destAngle) + yoffset;
                var x2 = x_padding + R + R * Math.cos(destAngle) + xoffset;

                var path = 'M' + x1 + ' ' + y1 + center + x2 + ' ' + y2;
                var curve = paper.path(path);
              