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Some reduction of Perl dependencies on ClipperLib,

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ported some ClipperLib polyline clipping tests to C++.
This commit is contained in:
Vojtech Bubnik 2022-04-28 15:59:13 +02:00
parent 7f7d229178
commit 3687bc28d5
9 changed files with 82 additions and 235 deletions
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78
tests/libslic3r/test_clipper_utils.cpp
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@ -188,6 +188,46 @@ SCENARIO("Various Clipper operations - t/clipper.t", "[ClipperUtils]") {
REQUIRE(intersection.front().area() == Approx(match.area()));
}
}
ExPolygons expolygons { ExPolygon { square, hole_in_square } };
WHEN("Clipping line 1") {
Polylines intersection = intersection_pl({ Polyline { { 15, 18 }, { 15, 15 } } }, expolygons);
THEN("line is clipped to square with hole") {
REQUIRE((Vec2f(15, 18) - Vec2f(15, 16)).norm() == Approx(intersection.front().length()));
}
}
WHEN("Clipping line 2") {
Polylines intersection = intersection_pl({ Polyline { { 15, 15 }, { 15, 12 } } }, expolygons);
THEN("line is clipped to square with hole") {
REQUIRE((Vec2f(15, 14) - Vec2f(15, 12)).norm() == Approx(intersection.front().length()));
}
}
WHEN("Clipping line 3") {
Polylines intersection = intersection_pl({ Polyline { { 12, 18 }, { 18, 18 } } }, expolygons);
THEN("line is clipped to square with hole") {
REQUIRE((Vec2f(18, 18) - Vec2f(12, 18)).norm() == Approx(intersection.front().length()));
}
}
WHEN("Clipping line 4") {
Polylines intersection = intersection_pl({ Polyline { { 5, 15 }, { 30, 15 } } }, expolygons);
THEN("line is clipped to square with hole") {
REQUIRE((Vec2f(14, 15) - Vec2f(10, 15)).norm() == Approx(intersection.front().length()));
REQUIRE((Vec2f(20, 15) - Vec2f(16, 15)).norm() == Approx(intersection[1].length()));
}
}
WHEN("Clipping line 5") {
Polylines intersection = intersection_pl({ Polyline { { 30, 15 }, { 5, 15 } } }, expolygons);
THEN("reverse line is clipped to square with hole") {
REQUIRE((Vec2f(20, 15) - Vec2f(16, 15)).norm() == Approx(intersection.front().length()));
REQUIRE((Vec2f(14, 15) - Vec2f(10, 15)).norm() == Approx(intersection[1].length()));
}
}
WHEN("Clipping line 6") {
Polylines intersection = intersection_pl({ Polyline { { 10, 18 }, { 20, 18 } } }, expolygons);
THEN("tangent line is clipped to square with hole") {
REQUIRE((Vec2f(20, 18) - Vec2f(10, 18)).norm() == Approx(intersection.front().length()));
}
}
}
GIVEN("square with hole 2") {
// CCW oriented contour
@ -223,6 +263,44 @@ SCENARIO("Various Clipper operations - t/clipper.t", "[ClipperUtils]") {
}
}
}
GIVEN("circle") {
Slic3r::ExPolygon circle_with_hole { Polygon::new_scale({
{ 151.8639,288.1192 }, {133.2778,284.6011}, { 115.0091,279.6997 }, { 98.2859,270.8606 }, { 82.2734,260.7933 },
{ 68.8974,247.4181 }, { 56.5622,233.0777 }, { 47.7228,216.3558 }, { 40.1617,199.0172 }, { 36.6431,180.4328 },
{ 34.932,165.2312 }, { 37.5567,165.1101 }, { 41.0547,142.9903 }, { 36.9056,141.4295 }, { 40.199,124.1277 },
{ 47.7776,106.7972 }, { 56.6335,90.084 }, { 68.9831,75.7557 }, { 82.3712,62.3948 }, { 98.395,52.3429 },
{ 115.1281,43.5199 }, { 133.4004,38.6374 }, { 151.9884,35.1378 }, { 170.8905,35.8571 }, { 189.6847,37.991 },
{ 207.5349,44.2488 }, { 224.8662,51.8273 }, { 240.0786,63.067 }, { 254.407,75.4169 }, { 265.6311,90.6406 },
{ 275.6832,106.6636 }, { 281.9225,124.52 }, { 286.8064,142.795 }, { 287.5061,161.696 }, { 286.7874,180.5972 },
{ 281.8856,198.8664 }, { 275.6283,216.7169 }, { 265.5604,232.7294 }, { 254.3211,247.942 }, { 239.9802,260.2776 },
{ 224.757,271.5022 }, { 207.4179,279.0635 }, { 189.5605,285.3035 }, { 170.7649,287.4188 }
}) };
circle_with_hole.holes = { Polygon::new_scale({
{ 158.227,215.9007 }, { 164.5136,215.9007 }, { 175.15,214.5007 }, { 184.5576,210.6044 }, { 190.2268,207.8743 },
{ 199.1462,201.0306 }, { 209.0146,188.346 }, { 213.5135,177.4829 }, { 214.6979,168.4866 }, { 216.1025,162.3325 },
{ 214.6463,151.2703 }, { 213.2471,145.1399 }, { 209.0146,134.9203 }, { 199.1462,122.2357 }, { 189.8944,115.1366 },
{ 181.2504,111.5567 }, { 175.5684,108.8205 }, { 164.5136,107.3655 }, { 158.2269,107.3655 }, { 147.5907,108.7656 },
{ 138.183,112.6616 }, { 132.5135,115.3919 }, { 123.5943,122.2357 }, { 113.7259,134.92 }, { 109.2269,145.7834 },
{ 108.0426,154.7799 }, { 106.638,160.9339 }, { 108.0941,171.9957 }, { 109.4933,178.1264 }, { 113.7259,188.3463 },
{ 123.5943,201.0306 }, { 132.8461,208.1296 }, { 141.4901,211.7094 }, { 147.172,214.4458 }
}) };
THEN("contour is counter-clockwise") {
REQUIRE(circle_with_hole.contour.is_counter_clockwise());
}
THEN("hole is counter-clockwise") {
REQUIRE(circle_with_hole.holes.size() == 1);
REQUIRE(circle_with_hole.holes.front().is_clockwise());
}
WHEN("clipping a line") {
auto line = Polyline::new_scale({ { 152.742,288.086671142818 }, { 152.742,34.166466971035 } });
Polylines intersection = intersection_pl({ line }, { circle_with_hole });
THEN("clipped to two pieces") {
REQUIRE(intersection.front().length() == Approx((Vec2d(152742000, 215178843) - Vec2d(152742000, 288086661)).norm()));
REQUIRE(intersection[1].length() == Approx((Vec2d(152742000, 35166477) - Vec2d(152742000, 108087507)).norm()));
}
}
}
}
template<e_ordering o = e_ordering::OFF, class P, class Tree>