Internal layout of the data structure returned by meshgrid

[mmoelle1]

Dear all,

From the source code I see the internal layout of the data structure that is returned by

auto [X, Y] = meshgrid(linspace(-5, +5, 40), linspace(-5, +5, 40));

is an std::pair of std::vector<std::vector<double>>s (aka vector_2d).

I am generating my data externally (with LibTorch) and would like to avoid copying it into the vector_2d structure. Is there a way to wrap external data into a structure that is accepted by functions like surf, etc.? I see that an overload of the surf function accepts IterableIterables but I cannot get it to work.

Thanks and best regards,
Matthias

[alandefreitas]

matplotplusplus/source/matplot/util/common.h

Line 334 in b45015e

std::pair<vector_2d, vector_2d> meshgrid(const vector_1d &x,