Circle class# struct Circle# Public Members xt::xtensor<double, 1> theta# Theta angle. xt::xtensor<double, 2> path# coordinates of the discretized points of the circle xt::xtensor_fixed<double, xt::xshape<4>> color = {0.61960784313725492, 0.41568627450980394, 0, 1.0}# The color of the circle.