#include #include #include int main() { using namespace matplot; auto z = linspace(0, 4 * pi, 250); auto x = transform(z, [](double z) { return 2 * cos(z) + rand(0, 1); }); auto y = transform(z, [](double z) { return 2 * sin(z) + rand(0, 1); }); scatter3(x, y, z, "*"); view(-30, 10); show(); return 0; }