diff options
Diffstat (limited to 'svg-flatten/src/test')
| -rw-r--r-- | svg-flatten/src/test/nopencv_test.cpp | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/svg-flatten/src/test/nopencv_test.cpp b/svg-flatten/src/test/nopencv_test.cpp index 4a4634c..77ea711 100644 --- a/svg-flatten/src/test/nopencv_test.cpp +++ b/svg-flatten/src/test/nopencv_test.cpp @@ -336,19 +336,22 @@ MU_TEST(test_transform_decomposition) { 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"); + for (int s_y_sign=0; s_y_sign<2; s_y_sign++) { + double s_y_i = s_y_sign ? -s_y : s_y; + 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_i << ", m=" << m << ", theta=" << theta << endl; + xf.rotate(theta).skew(m).scale(s_x, s_y_i); + //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_i - 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"); + } } } } |