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| author | jaseg <git@jaseg.de> | 2023-03-30 12:12:38 +0200 |
|---|---|---|
| committer | jaseg <git@jaseg.de> | 2023-03-30 12:12:38 +0200 |
| commit | 2df63318a272fcf2d1f1f6652c999cc3c415d431 (patch) | |
| tree | 519e5a574a22aa118975a7a211ff50539ff47b3f | |
| parent | 5f008f623aed5bb73a407d1c4b1fdb202fee266a (diff) | |
| download | gerbolyze-2df63318a272fcf2d1f1f6652c999cc3c415d431.tar.gz gerbolyze-2df63318a272fcf2d1f1f6652c999cc3c415d431.tar.bz2 gerbolyze-2df63318a272fcf2d1f1f6652c999cc3c415d431.zip | |
svg-flatten: Test transform decomposition under mirroring
| -rw-r--r-- | svg-flatten/src/test/nopencv_test.cpp | 29 | ||||
| -rw-r--r-- | svg-flatten/testdata/svg/xform_uniformity_threshold.svg | 12 |
2 files changed, 22 insertions, 19 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"); + } } } } diff --git a/svg-flatten/testdata/svg/xform_uniformity_threshold.svg b/svg-flatten/testdata/svg/xform_uniformity_threshold.svg index 90fb3c8..d9a6c02 100644 --- a/svg-flatten/testdata/svg/xform_uniformity_threshold.svg +++ b/svg-flatten/testdata/svg/xform_uniformity_threshold.svg @@ -3,8 +3,8 @@ <svg width="80mm" - height="100mm" - viewBox="0 0 80 100" + height="160mm" + viewBox="0 0 80 160" version="1.1" id="svg5" inkscape:version="1.2.2 (b0a8486541, 2022-12-01)" @@ -24,9 +24,9 @@ inkscape:deskcolor="#d1d1d1" inkscape:document-units="mm" showgrid="false" - inkscape:zoom="1.5760525" - inkscape:cx="162.74839" - inkscape:cy="175.75557" + inkscape:zoom="8.6041055" + inkscape:cx="139.00341" + inkscape:cy="420.14827" inkscape:window-width="1920" inkscape:window-height="1011" inkscape:window-x="0" @@ -39,7 +39,7 @@ x="31.361818" y="59.900364" width="249.94496" - height="98.717278" + height="98.71728" id="rect256" /> </defs> <g |
