area_3.cpp

#include <matplot/matplot.h>

int main() {
    using namespace matplot;

    std::vector<std::vector<double>> Y = {
        {1, 3, 1, 2}, {5, 2, 5, 6}, {3, 7, 3, 1}};

    auto f = gcf();
    f->width(f->width() * 2);

    subplot(1, 2, 0);
    auto h1 = area(Y, -4.);
    h1[0]->line_style(":");
    h1[1]->line_style(":");
    h1[2]->line_style(":");
    h1[0]->face_color({0, 0, 0.25, 0.25});
    h1[1]->face_color({0, 0, 0.5, 0.5});
    h1[2]->face_color({0, 0, 0.75, 0.75});
    title("Stacked");

    subplot(1, 2, 1);
    auto h2 = area(Y, -4, false);
    h2[0]->line_style(":");
    h2[1]->line_style(":");
    h2[2]->line_style(":");
    h2[0]->face_color({0.2f, 0.f, 0.25f, 0.25f});
    h2[1]->face_color({0.2f, 0.f, 0.5f, 0.5f});
    h2[2]->face_color({0.2f, 0.f, 0.75f, 0.75f});
    title("Not stacked");

    show();
    return 0;
}