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Fix of #8472: The middle perimeter was missing for some specific configurations due to numeric rounding errors.

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This commit is contained in:
Lukáš Hejl 2022-07-29 21:14:27 +02:00
parent 756eaeeb6d
commit 0161a59a93
3 changed files with 51 additions and 6 deletions
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29
tests/libslic3r/test_arachne.cpp
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@ -73,3 +73,32 @@ TEST_CASE("Arachne - Closed ExtrusionLine", "[ArachneClosedExtrusionLine]") {
}
}
// This test case was distilled from GitHub issue #8472.
// Where for wall_distribution_count == 3 sometime middle perimeter was missing.
TEST_CASE("Arachne - Missing perimeter - #8472", "[ArachneMissingPerimeter8472]") {
Polygon poly = {
Point(-9000000, 8054793),
Point( 7000000, 8054793),
Point( 7000000, 10211874),
Point(-8700000, 10211874),
Point(-9000000, 9824444)
};
Polygons polygons = {poly};
coord_t spacing = 437079;
coord_t inset_count = 3;
PrintObjectConfig print_object_config = PrintObjectConfig::defaults();
print_object_config.wall_distribution_count.setInt(3);
Arachne::WallToolPaths wallToolPaths(polygons, spacing, spacing, inset_count, 0, print_object_config, PrintConfig::defaults());
wallToolPaths.generate();
std::vector<Arachne::VariableWidthLines> perimeters = wallToolPaths.getToolPaths();
#ifdef ARACHNE_DEBUG_OUT
draw_extrusion(debug_out_path("arachne-missing-perimeter-8472.svg"), polygons, perimeters, union_ex(wallToolPaths.getInnerContour()));
#endif
REQUIRE(perimeters.size() == 3);
}