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Diffstat (limited to 'tests/libslic3r/test_optimizers.cpp')
-rw-r--r-- | tests/libslic3r/test_optimizers.cpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/tests/libslic3r/test_optimizers.cpp b/tests/libslic3r/test_optimizers.cpp new file mode 100644 index 000000000..6e84f6a69 --- /dev/null +++ b/tests/libslic3r/test_optimizers.cpp @@ -0,0 +1,59 @@ +#include <catch2/catch.hpp> +#include <test_utils.hpp> + +#include <libslic3r/Optimize/BruteforceOptimizer.hpp> + +#include <libslic3r/Optimize/NLoptOptimizer.hpp> + +void check_opt_result(double score, double ref, double abs_err, double rel_err) +{ + double abs_diff = std::abs(score - ref); + double rel_diff = std::abs(abs_diff / std::abs(ref)); + + bool abs_reached = abs_diff < abs_err; + bool rel_reached = rel_diff < rel_err; + bool precision_reached = abs_reached || rel_reached; + REQUIRE(precision_reached); +} + +template<class Opt> void test_sin(Opt &&opt) +{ + using namespace Slic3r::opt; + + auto optfunc = [](const auto &in) { + auto [phi] = in; + + return std::sin(phi); + }; + + auto init = initvals({PI}); + auto optbounds = bounds({ {0., 2 * PI}}); + + Result result_min = opt.to_min().optimize(optfunc, init, optbounds); + Result result_max = opt.to_max().optimize(optfunc, init, optbounds); + + check_opt_result(result_min.score, -1., 1e-2, 1e-4); + check_opt_result(result_max.score, 1., 1e-2, 1e-4); +} + +template<class Opt> void test_sphere_func(Opt &&opt) +{ + using namespace Slic3r::opt; + + Result result = opt.to_min().optimize([](const auto &in) { + auto [x, y] = in; + + return x * x + y * y + 1.; + }, initvals({.6, -0.2}), bounds({{-1., 1.}, {-1., 1.}})); + + check_opt_result(result.score, 1., 1e-2, 1e-4); +} + +TEST_CASE("Test brute force optimzer for basic 1D and 2D functions", "[Opt]") { + using namespace Slic3r::opt; + + Optimizer<AlgBruteForce> opt; + + test_sin(opt); + test_sphere_func(opt); +} |