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Mirror [Deviation] surface_deviation test into test_caddocument.cpp

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orca_cad's test_geometry.cpp is upstream Catch2 v3 with no CAD suite, so the
surface_deviation check lives alongside the CAD tests here. Built + ran green
in orca_cad's kernel-test docker: All tests passed (4 assertions). Both forks
now carry the test.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BVzKmX6Y1aEteit1HTXG4Q
This commit is contained in:
Tommaso Bianchi
2026-06-30 17:55:06 +02:00
co-authored by Claude Opus 4.8
parent 94cde2af21
commit b93b9d558c
1 changed files with 22 additions and 0 deletions
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tests/libslic3r/test_caddocument.cpp
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@@ -1,6 +1,7 @@
#include <catch2/catch_all.hpp> // mainline OrcaSlicer ships Catch2 v3 (v2 was catch2/catch.hpp)
#include "libslic3r/CadDocument.hpp"
#include "libslic3r/GeometryEngine.hpp"
#include "libslic3r/SketchEngine.hpp"
#include "libslic3r/SketchImport.hpp"
#include "libslic3r/ThreadStandards.hpp"
@@ -13,6 +14,9 @@
#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>
#include <BRepPrimAPI_MakeBox.hxx>
#include <BRepBuilderAPI_Transform.hxx>
#include <gp_Trsf.hxx>
#include <gp_Vec.hxx>
#include <cereal/archives/binary.hpp>
using namespace Slic3r;
@@ -1603,3 +1607,21 @@ TEST_CASE("datum plane construction methods", "[CadDocument][plane]")
CHECK_THAT(std::abs(sp.y_axis.dot(sp.normal)), WithinAbs(0.0, 1e-6));
}
}
// Mirrors the snaporca [Deviation] case (snaporca carries it in test_geometry.cpp; here it lives
// alongside the CAD suite). GeometryEngine::surface_deviation = one-sided Hausdorff used by the
// MCP validate_against acceptance metric.
TEST_CASE("surface_deviation: identical solids ~0, shifted solid ~shift", "[Deviation]")
{
TopoDS_Shape ref = BRepPrimAPI_MakeBox(10.0, 10.0, 10.0).Shape();
auto d0 = GeometryEngine::surface_deviation(ref, ref, 0.5);
REQUIRE(d0.sample_count > 0);
REQUIRE_THAT(d0.max_mm, Catch::Matchers::WithinAbs(0.0, 1e-6));
// candidate shifted +2mm in X: far corner vertices sit 2mm outside the reference
gp_Trsf t; t.SetTranslation(gp_Vec(2.0, 0.0, 0.0));
TopoDS_Shape shifted = BRepBuilderAPI_Transform(ref, t, true).Shape();
auto d1 = GeometryEngine::surface_deviation(shifted, ref, 0.5);
REQUIRE_THAT(d1.max_mm, Catch::Matchers::WithinAbs(2.0, 0.05));
REQUIRE(d1.mean_mm > 0.0);
}