Intersection points between paths The `intersect` method of a path allows for the calculation of intersection points between this path and the second path passed to the `intersect` method. ... The return value of the intersect method is a tuple of two lists, where each list contains parametrization instances for the intersection points. The first list are the parameters for the path the `intersect` method was called for. The second list are the parameter values for the path passed to the `intersect` method. Thus we can calculate the first intersection point `x1, y1` by x1, y1 = p1.at(a1) as done in the example or alternatively by x1, y1 = p2.at(b1) ! When several intersections between two paths occur, the order of the intersection points is defined by the order in which the points are passed when walking along the first path.