diff options
Diffstat (limited to 'svg-flatten/src/test')
| -rw-r--r-- | svg-flatten/src/test/nopencv_test.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/svg-flatten/src/test/nopencv_test.cpp b/svg-flatten/src/test/nopencv_test.cpp index 204ee59..4a4634c 100644 --- a/svg-flatten/src/test/nopencv_test.cpp +++ b/svg-flatten/src/test/nopencv_test.cpp @@ -7,6 +7,7 @@ #include "util.h" #include "nopencv.hpp" +#include "geom2d.hpp" #include <subprocess.h> #include <minunit.h> @@ -330,6 +331,31 @@ MU_TEST(chain_approx_test_two_px_inv) { chain_approx_test("testdata/two- MU_TEST(chain_approx_test_contour_tracing_demo_input) { chain_approx_test("testdata/contour_tracing_demo_input.png"); } +MU_TEST(test_transform_decomposition) { + double scales[] = {0.1, 0.5, 0.9, 0.999999999, 1.0, 1.000000001, 1.1, 1.5, 2.0, 1000}; + double ms[] = {0, -5.0, -1.0, -0.1, 0.1, 0.5, 1.0, 2.0, 5.0, 6.123, 100.0}; + for (double &s_x : scales) { + for (double &s_y : scales) { + for (int i_theta=0; i_theta<25; i_theta++) { + double theta = i_theta * std::numbers::pi / 12.0; + for (double &m : ms) { + xform2d xf; + //cerr << endl << "testing s_x=" << s_x << ", s_y=" << s_y << ", m=" << m << ", theta=" << theta << endl; + xf.rotate(theta).skew(m).scale(s_x, s_y); + //cerr << " -> " << xf.dbg_str() << endl; + const auto [dec_s_x, dec_s_y, dec_m, dec_theta] = xf.decompose(); + mu_assert(fabs(s_x - dec_s_x) < 1e-9, "s_x incorrect"); + mu_assert(fabs(s_y - dec_s_y) < 1e-9, "s_y incorrect"); + mu_assert(fabs(m - dec_m) < 1e-9, "m incorrect"); + double a = dec_theta - theta + std::numbers::pi; + mu_assert(fabs(a - floor(a/(2*std::numbers::pi)) * 2 * std::numbers::pi - std::numbers::pi) < 1e-12, "theta incorrect"); + } + } + } + } +} + + MU_TEST_SUITE(nopencv_contours_suite) { MU_RUN_TEST(test_complex_example_from_paper); @@ -384,6 +410,8 @@ MU_TEST_SUITE(nopencv_contours_suite) { MU_RUN_TEST(chain_approx_test_two_px); MU_RUN_TEST(chain_approx_test_two_px_inv); MU_RUN_TEST(chain_approx_test_contour_tracing_demo_input); + + MU_RUN_TEST(test_transform_decomposition); }; int main(int argc, char **argv) { |