--- /dev/null
+#include <gtest/gtest.h>
+
+#include <memory>
+#include <ShapeAnalysis_CanonicalRecognition.hxx>
+#include <Precision.hxx>
+#include <BRepBuilderAPI_MakeEdge.hxx>
+#include <BRepBuilderAPI_MakeWire.hxx>
+#include <BRepBuilderAPI_MakeFace.hxx>
+#include <BRepBuilderAPI_MakePolygon.hxx>
+#include <BRepBuilderAPI_Sewing.hxx>
+#include <BRepBuilderAPI_NurbsConvert.hxx>
+#include <GC_MakeSegment.hxx>
+#include <TopoDS_Edge.hxx>
+#include <TopoDS_Wire.hxx>
+#include <TopoDS_Face.hxx>
+#include <TopoDS_Shell.hxx>
+#include <Geom_Plane.hxx>
+#include <Geom_CylindricalSurface.hxx>
+#include <Geom_ConicalSurface.hxx>
+#include <Geom_SphericalSurface.hxx>
+#include <Geom_Line.hxx>
+#include <Geom_Circle.hxx>
+#include <Geom_Ellipse.hxx>
+#include <Geom_BezierCurve.hxx>
+#include <Geom_BSplineSurface.hxx>
+#include <Geom_BSplineCurve.hxx>
+#include <GeomConvert.hxx>
+#include <BRep_Tool.hxx>
+#include <BRepAlgoAPI_Section.hxx>
+#include <TopoDS.hxx>
+#include <TopExp_Explorer.hxx>
+#include <TopExp.hxx>
+#include <TopTools_IndexedMapOfShape.hxx>
+#include <Geom_SurfaceOfLinearExtrusion.hxx>
+#include <GeomAPI_IntSS.hxx>
+#include <Geom_TrimmedCurve.hxx>
+#include <gp_Pnt.hxx>
+#include <gp_Dir.hxx>
+#include <gp_Vec.hxx>
+#include <gp_Pln.hxx>
+#include <gp_Lin.hxx>
+#include <gp_Circ.hxx>
+#include <gp_Elips.hxx>
+#include <gp_Cylinder.hxx>
+#include <gp_Cone.hxx>
+#include <gp_Sphere.hxx>
+#include <gp_Ax1.hxx>
+#include <gp_Ax2.hxx>
+#include <TColgp_Array1OfPnt.hxx>
+#include <GeomAbs_SurfaceType.hxx>
+#include <GeomAbs_CurveType.hxx>
+
+//==================================================================================================
+// Surface Recognition Tests (cr/approx tests)
+//==================================================================================================
+
+class CanonicalRecognitionApproxTest : public ::testing::Test
+{
+protected:
+ void SetUp() override
+ {
+ myRecognizer = std::make_unique<ShapeAnalysis_CanonicalRecognition>();
+ myTolerance = 1.0e-3;
+ }
+
+ std::unique_ptr<ShapeAnalysis_CanonicalRecognition> myRecognizer;
+ Standard_Real myTolerance;
+};
+
+// Test cr/approx/A1: polyline to plane recognition
+TEST_F(CanonicalRecognitionApproxTest, PolylineToPlaneRecognition_A1)
+{
+ // Create polyline: 0 0 0 -> 1 0 0 -> 1 1 0 -> 0 1 0 -> 0 0 0
+ BRepBuilderAPI_MakePolygon aPolygonMaker;
+ aPolygonMaker.Add(gp_Pnt(0, 0, 0));
+ aPolygonMaker.Add(gp_Pnt(1, 0, 0));
+ aPolygonMaker.Add(gp_Pnt(1, 1, 0));
+ aPolygonMaker.Add(gp_Pnt(0, 1, 0));
+ aPolygonMaker.Close();
+
+ ASSERT_TRUE(aPolygonMaker.IsDone()) << "Failed to create polyline";
+ const TopoDS_Wire aWire = aPolygonMaker.Wire();
+
+ // Set shape and test plane recognition
+ myRecognizer->SetShape(aWire);
+ gp_Pln aResultPlane;
+ const Standard_Boolean aResult = myRecognizer->IsPlane(myTolerance, aResultPlane);
+
+ EXPECT_TRUE(aResult) << "Polyline should be recognized as planar";
+
+ // Verify it's approximately the XY plane (Z=0)
+ const gp_Pnt aOrigin = aResultPlane.Location();
+ const gp_Dir aNormal = aResultPlane.Axis().Direction();
+
+ EXPECT_NEAR(std::abs(aNormal.Z()), 1.0, myTolerance)
+ << "Plane normal should be close to Z direction";
+ EXPECT_NEAR(aOrigin.Z(), 0.0, myTolerance) << "Plane should pass through Z=0";
+}
+
+// Test cr/approx/A2: cylinder recognition from NURBS converted face
+TEST_F(CanonicalRecognitionApproxTest, CylinderRecognition_A2)
+{
+ // Create cylindrical face
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(1, 1, 1));
+ Handle(Geom_CylindricalSurface) aCylSurf = new Geom_CylindricalSurface(aAxis, 1.0);
+ BRepBuilderAPI_MakeFace aFaceMaker(aCylSurf, 0, 2 * M_PI, 0, 1, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create cylindrical face";
+ const TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert face to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+ const TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsShape);
+
+ // Test cylinder recognition on the NURBS face
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Cylinder aResultCylinder;
+ const Standard_Boolean aResult = myRecognizer->IsCylinder(myTolerance, aResultCylinder);
+
+ EXPECT_TRUE(aResult) << "NURBS face should be recognized as cylinder";
+ EXPECT_NEAR(aResultCylinder.Radius(), 1.0, myTolerance) << "Cylinder radius should match";
+}
+
+// Test cr/approx/A3: conical surface recognition from NURBS converted face
+TEST_F(CanonicalRecognitionApproxTest, ConicalSurfaceRecognition_A3)
+{
+ // Create conical face: cone with half angle 30 degrees
+ const Standard_Real aHalfAngle = M_PI / 6.0; // 30 degrees
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_ConicalSurface) aConeSurf = new Geom_ConicalSurface(aAxis, aHalfAngle, 2.0);
+ BRepBuilderAPI_MakeFace aFaceMaker(aConeSurf, 0, 2 * M_PI, 0, 3, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create conical face";
+ const TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert face to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+ const TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsShape);
+
+ // Test cone recognition on the NURBS face
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Cone aResultCone;
+ const Standard_Boolean aResult = myRecognizer->IsCone(myTolerance, aResultCone);
+
+ EXPECT_TRUE(aResult) << "NURBS face should be recognized as cone";
+ EXPECT_NEAR(aResultCone.SemiAngle(), aHalfAngle, myTolerance) << "Cone semi-angle should match";
+}
+
+// Test cr/approx/A4: spherical surface recognition from NURBS converted face
+TEST_F(CanonicalRecognitionApproxTest, SphericalSurfaceRecognition_A4)
+{
+ // Create spherical face
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_SphericalSurface) aSphereSurf = new Geom_SphericalSurface(aAxis, 1.0);
+ BRepBuilderAPI_MakeFace aFaceMaker(aSphereSurf, 0, 2 * M_PI, 0, M_PI / 2, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create spherical face";
+ const TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert face to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+ const TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsShape);
+
+ // Test sphere recognition on the NURBS face
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Sphere aResultSphere;
+ const Standard_Boolean aResult = myRecognizer->IsSphere(myTolerance, aResultSphere);
+
+ EXPECT_TRUE(aResult) << "NURBS face should be recognized as sphere";
+ EXPECT_NEAR(aResultSphere.Radius(), 1.0, myTolerance) << "Sphere radius should match";
+}
+
+//==================================================================================================
+// Curve Recognition Tests (cr/base A-series tests)
+//==================================================================================================
+
+class CanonicalRecognitionBaseCurveTest : public ::testing::Test
+{
+protected:
+ void SetUp() override
+ {
+ myRecognizer = std::make_unique<ShapeAnalysis_CanonicalRecognition>();
+ myTolerance = 1.0e-3;
+ }
+
+ std::unique_ptr<ShapeAnalysis_CanonicalRecognition> myRecognizer;
+ Standard_Real myTolerance;
+};
+
+// Test cr/base/A1: Bezier curve to line recognition
+TEST_F(CanonicalRecognitionBaseCurveTest, BezierToLineRecognition_A1)
+{
+ // Create nearly linear Bezier curve
+ TColgp_Array1OfPnt aControlPoints(1, 3);
+ aControlPoints(1) = gp_Pnt(0, 0, 0);
+ aControlPoints(2) = gp_Pnt(0.5, 0.0005, 0); // Very small deviation
+ aControlPoints(3) = gp_Pnt(1, 0, 0);
+
+ Handle(Geom_BezierCurve) aBezier = new Geom_BezierCurve(aControlPoints);
+ BRepBuilderAPI_MakeEdge aEdgeMaker(aBezier);
+
+ ASSERT_TRUE(aEdgeMaker.IsDone()) << "Failed to create Bezier edge";
+ const TopoDS_Edge anEdge = aEdgeMaker.Edge();
+
+ // Set shape and test line recognition
+ myRecognizer->SetShape(anEdge);
+ gp_Lin aResultLine;
+ const Standard_Boolean aResult = myRecognizer->IsLine(myTolerance, aResultLine);
+
+ EXPECT_TRUE(aResult) << "Nearly linear Bezier should be recognized as line";
+
+ // Verify line direction is approximately along X-axis
+ const gp_Dir aLineDir = aResultLine.Direction();
+ EXPECT_NEAR(std::abs(aLineDir.X()), 1.0, myTolerance) << "Line should be along X direction";
+}
+
+// Test cr/base/A2: Bezier curve to circle recognition
+TEST_F(CanonicalRecognitionBaseCurveTest, BezierToCircleRecognition_A2)
+{
+ // Create the same Bezier curve as A1 and test for circle recognition
+ TColgp_Array1OfPnt aControlPoints(1, 3);
+ aControlPoints(1) = gp_Pnt(0, 0, 0);
+ aControlPoints(2) = gp_Pnt(0.5, 0.0005, 0); // Small deviation as in original TCL
+ aControlPoints(3) = gp_Pnt(1, 0, 0);
+
+ Handle(Geom_BezierCurve) aBezier = new Geom_BezierCurve(aControlPoints);
+ BRepBuilderAPI_MakeEdge aEdgeMaker(aBezier);
+
+ ASSERT_TRUE(aEdgeMaker.IsDone()) << "Failed to create Bezier edge";
+ const TopoDS_Edge anEdge = aEdgeMaker.Edge();
+
+ // Set shape and test circle recognition
+ myRecognizer->SetShape(anEdge);
+ gp_Circ aResultCircle;
+ const Standard_Boolean aResult = myRecognizer->IsCircle(myTolerance, aResultCircle);
+
+ EXPECT_TRUE(aResult)
+ << "Bezier curve should be recognized as circle (matching original TCL test)";
+ EXPECT_GT(aResultCircle.Radius(), 0.0) << "Circle radius should be positive";
+}
+
+// Test cr/base/A3: Ellipse to ellipse recognition
+TEST_F(CanonicalRecognitionBaseCurveTest, EllipseToEllipseRecognition_A3)
+{
+ // Create ellipse with major radius 1, minor radius 0.5
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1), gp_Dir(1, 0, 0));
+ Handle(Geom_Ellipse) aEllipse = new Geom_Ellipse(aAxis, 1.0, 0.5);
+
+ // Convert to B-spline curve
+ Handle(Geom_BSplineCurve) aBSplineCurve = GeomConvert::CurveToBSplineCurve(aEllipse);
+ BRepBuilderAPI_MakeEdge aEdgeMaker(aBSplineCurve);
+
+ ASSERT_TRUE(aEdgeMaker.IsDone()) << "Failed to create ellipse edge";
+ const TopoDS_Edge anEdge = aEdgeMaker.Edge();
+
+ // Set shape and test ellipse recognition
+ myRecognizer->SetShape(anEdge);
+ gp_Elips aResultEllipse;
+ const Standard_Boolean aResult = myRecognizer->IsEllipse(1.0e-7, aResultEllipse);
+
+ EXPECT_TRUE(aResult) << "Ellipse should be recognized as ellipse";
+ EXPECT_NEAR(aResultEllipse.MajorRadius(), 1.0, 1.0e-7) << "Major radius should match";
+ EXPECT_NEAR(aResultEllipse.MinorRadius(), 0.5, 1.0e-7) << "Minor radius should match";
+}
+
+// Test cr/base/A4: Multi-segment wire to line recognition
+TEST_F(CanonicalRecognitionBaseCurveTest, MultiSegmentWireToLineRecognition_A4)
+{
+ // Create nearly linear Bezier curve split into 3 segments
+ TColgp_Array1OfPnt aControlPoints(1, 3);
+ aControlPoints(1) = gp_Pnt(0, 0, 0);
+ aControlPoints(2) = gp_Pnt(0.5, 0.0000005, 0); // Even smaller deviation
+ aControlPoints(3) = gp_Pnt(1, 0, 0);
+
+ Handle(Geom_BezierCurve) aBezier = new Geom_BezierCurve(aControlPoints);
+
+ // Create 3 edges from different parameter ranges
+ BRepBuilderAPI_MakeEdge aEdgeMaker1(aBezier, 0.0, 0.3);
+ BRepBuilderAPI_MakeEdge aEdgeMaker2(aBezier, 0.3, 0.7);
+ BRepBuilderAPI_MakeEdge aEdgeMaker3(aBezier, 0.7, 1.0);
+
+ ASSERT_TRUE(aEdgeMaker1.IsDone() && aEdgeMaker2.IsDone() && aEdgeMaker3.IsDone())
+ << "Failed to create edges";
+
+ // Create wire from the edges
+ BRepBuilderAPI_MakeWire aWireMaker;
+ aWireMaker.Add(aEdgeMaker1.Edge());
+ aWireMaker.Add(aEdgeMaker2.Edge());
+ aWireMaker.Add(aEdgeMaker3.Edge());
+
+ ASSERT_TRUE(aWireMaker.IsDone()) << "Failed to create wire";
+ const TopoDS_Wire aWire = aWireMaker.Wire();
+
+ // Set shape and test line recognition
+ myRecognizer->SetShape(aWire);
+ gp_Lin aResultLine;
+ const Standard_Boolean aResult = myRecognizer->IsLine(myTolerance, aResultLine);
+
+ EXPECT_TRUE(aResult) << "Multi-segment nearly linear wire should be recognized as line";
+}
+
+// Test cr/base/A5: Multi-segment circle wire to circle recognition
+TEST_F(CanonicalRecognitionBaseCurveTest, MultiSegmentCircleWireRecognition_A5)
+{
+ // Create circle and convert to B-spline
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_Circle) aCircle = new Geom_Circle(aAxis, 1.0);
+
+ // Convert to B-spline curve
+ Handle(Geom_BSplineCurve) aBSplineCurve = GeomConvert::CurveToBSplineCurve(aCircle);
+
+ // Create 3 edges from different parameter ranges
+ BRepBuilderAPI_MakeEdge aEdgeMaker1(aBSplineCurve, 0.0, 1.0);
+ BRepBuilderAPI_MakeEdge aEdgeMaker2(aBSplineCurve, 1.0, 2.5);
+ BRepBuilderAPI_MakeEdge aEdgeMaker3(aBSplineCurve, 2.5, 6.0);
+
+ ASSERT_TRUE(aEdgeMaker1.IsDone() && aEdgeMaker2.IsDone() && aEdgeMaker3.IsDone())
+ << "Failed to create edges";
+
+ // Create wire from the edges
+ BRepBuilderAPI_MakeWire aWireMaker;
+ aWireMaker.Add(aEdgeMaker1.Edge());
+ aWireMaker.Add(aEdgeMaker2.Edge());
+ aWireMaker.Add(aEdgeMaker3.Edge());
+
+ ASSERT_TRUE(aWireMaker.IsDone()) << "Failed to create wire";
+ const TopoDS_Wire aWire = aWireMaker.Wire();
+
+ // Set shape and test circle recognition
+ myRecognizer->SetShape(aWire);
+ gp_Circ aResultCircle;
+ const Standard_Boolean aResult = myRecognizer->IsCircle(1.0e-7, aResultCircle);
+
+ EXPECT_TRUE(aResult) << "Multi-segment circle wire should be recognized as circle";
+ EXPECT_NEAR(aResultCircle.Radius(), 1.0, 1.0e-7) << "Circle radius should match";
+}
+
+// Test cr/base/A6: Multi-segment ellipse wire to ellipse recognition
+TEST_F(CanonicalRecognitionBaseCurveTest, MultiSegmentEllipseWireRecognition_A6)
+{
+ // Create ellipse and convert to B-spline
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1), gp_Dir(1, 0, 0));
+ Handle(Geom_Ellipse) aEllipse = new Geom_Ellipse(aAxis, 1.0, 0.5);
+
+ // Convert to B-spline curve
+ Handle(Geom_BSplineCurve) aBSplineCurve = GeomConvert::CurveToBSplineCurve(aEllipse);
+
+ // Create 3 edges from different parameter ranges
+ BRepBuilderAPI_MakeEdge aEdgeMaker1(aBSplineCurve, 0.0, 1.0);
+ BRepBuilderAPI_MakeEdge aEdgeMaker2(aBSplineCurve, 1.0, 2.5);
+ BRepBuilderAPI_MakeEdge aEdgeMaker3(aBSplineCurve, 2.5, 6.0);
+
+ ASSERT_TRUE(aEdgeMaker1.IsDone() && aEdgeMaker2.IsDone() && aEdgeMaker3.IsDone())
+ << "Failed to create edges";
+
+ // Create wire from the edges
+ BRepBuilderAPI_MakeWire aWireMaker;
+ aWireMaker.Add(aEdgeMaker1.Edge());
+ aWireMaker.Add(aEdgeMaker2.Edge());
+ aWireMaker.Add(aEdgeMaker3.Edge());
+
+ ASSERT_TRUE(aWireMaker.IsDone()) << "Failed to create wire";
+ const TopoDS_Wire aWire = aWireMaker.Wire();
+
+ // Set shape and test ellipse recognition
+ myRecognizer->SetShape(aWire);
+ gp_Elips aResultEllipse;
+ const Standard_Boolean aResult = myRecognizer->IsEllipse(1.0e-7, aResultEllipse);
+
+ EXPECT_TRUE(aResult) << "Multi-segment ellipse wire should be recognized as ellipse";
+ EXPECT_NEAR(aResultEllipse.MajorRadius(), 1.0, 1.0e-7) << "Major radius should match";
+ EXPECT_NEAR(aResultEllipse.MinorRadius(), 0.5, 1.0e-7) << "Minor radius should match";
+}
+
+//==================================================================================================
+// Surface Recognition Tests (cr/base B-series tests)
+//==================================================================================================
+
+class CanonicalRecognitionBaseSurfaceTest : public ::testing::Test
+{
+protected:
+ void SetUp() override
+ {
+ myRecognizer = std::make_unique<ShapeAnalysis_CanonicalRecognition>();
+ myTolerance = 1.0e-7;
+ }
+
+ std::unique_ptr<ShapeAnalysis_CanonicalRecognition> myRecognizer;
+ Standard_Real myTolerance;
+};
+
+// Test cr/base/B1: Plane recognition from trimmed surface
+TEST_F(CanonicalRecognitionBaseSurfaceTest, TrimmedPlaneRecognition_B1)
+{
+ // Create plane surface
+ Handle(Geom_Plane) aPlane = new Geom_Plane(gp_Pln());
+
+ // Create face from plane
+ BRepBuilderAPI_MakeFace aFaceMaker(aPlane, -1, 1, -1, 1, Precision::Confusion());
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create planar face";
+ TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsConvert.Shape());
+
+ // Set shape and test plane recognition
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Pln aResultPlane;
+ const Standard_Boolean aResult = myRecognizer->IsPlane(myTolerance, aResultPlane);
+
+ EXPECT_TRUE(aResult) << "Planar face should be recognized as plane";
+
+ // Verify it's the XY plane
+ const gp_Dir aNormal = aResultPlane.Axis().Direction();
+ EXPECT_NEAR(std::abs(aNormal.Z()), 1.0, myTolerance) << "Plane normal should be Z direction";
+}
+
+// Test cr/base/B2: Cylinder recognition from trimmed surface
+TEST_F(CanonicalRecognitionBaseSurfaceTest, TrimmedCylinderRecognition_B2)
+{
+ // Create cylindrical surface
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_CylindricalSurface) aCylSurf = new Geom_CylindricalSurface(aAxis, 1.0);
+
+ // Create face from cylinder
+ BRepBuilderAPI_MakeFace aFaceMaker(aCylSurf, 0, 2 * M_PI, -1, 1, Precision::Confusion());
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create cylindrical face";
+ TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsConvert.Shape());
+
+ // Set shape and test cylinder recognition
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Cylinder aResultCylinder;
+ const Standard_Boolean aResult = myRecognizer->IsCylinder(myTolerance, aResultCylinder);
+
+ EXPECT_TRUE(aResult) << "Cylindrical surface should be recognized as cylinder";
+ EXPECT_NEAR(aResultCylinder.Radius(), 1.0, myTolerance) << "Cylinder radius should match";
+}
+
+// Test cr/base/B3: Cone recognition from trimmed surface
+TEST_F(CanonicalRecognitionBaseSurfaceTest, TrimmedConeRecognition_B3)
+{
+ // Create conical surface (30 degree half-angle)
+ const Standard_Real aSemiAngle = M_PI / 6.0; // 30 degrees
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_ConicalSurface) aConeSurf = new Geom_ConicalSurface(aAxis, aSemiAngle, 0);
+
+ // Create face from cone
+ BRepBuilderAPI_MakeFace aFaceMaker(aConeSurf, 0, 2 * M_PI, -1, 0, Precision::Confusion());
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create conical face";
+ TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsConvert.Shape());
+
+ // Set shape and test cone recognition
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Cone aResultCone;
+ const Standard_Boolean aResult = myRecognizer->IsCone(myTolerance, aResultCone);
+
+ EXPECT_TRUE(aResult) << "Conical surface should be recognized as cone";
+ EXPECT_NEAR(aResultCone.SemiAngle(), aSemiAngle, myTolerance) << "Cone semi-angle should match";
+}
+
+// Test cr/base/B4: Sphere recognition from converted surface
+TEST_F(CanonicalRecognitionBaseSurfaceTest, ConvertedSphereRecognition_B4)
+{
+ // Create spherical surface and convert to B-spline
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_SphericalSurface) aSphereSurf = new Geom_SphericalSurface(aAxis, 1.0);
+
+ // Convert to B-spline surface
+ Handle(Geom_BSplineSurface) aBSplineSurf = GeomConvert::SurfaceToBSplineSurface(aSphereSurf);
+ BRepBuilderAPI_MakeFace aFaceMaker(aBSplineSurf, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create spherical face";
+ const TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Set shape and test sphere recognition
+ myRecognizer->SetShape(aFace);
+ gp_Sphere aResultSphere;
+ const Standard_Boolean aResult = myRecognizer->IsSphere(myTolerance, aResultSphere);
+
+ EXPECT_TRUE(aResult) << "Spherical surface should be recognized as sphere";
+ EXPECT_NEAR(aResultSphere.Radius(), 1.0, myTolerance) << "Sphere radius should match";
+}
+
+// Test cr/base/B5: Complex sewn planar surface recognition
+TEST_F(CanonicalRecognitionBaseSurfaceTest, SewnPlanarSurfaceRecognition_B5)
+{
+ // Create 4 planar faces to be sewn together
+ Handle(Geom_Plane) aPlane = new Geom_Plane(gp_Pln());
+
+ BRepBuilderAPI_MakeFace aFaceMaker1(aPlane, -1, 0, -1, 0, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker2(aPlane, -1, 0, 0, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker3(aPlane, 0, 1, 0, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker4(aPlane, 0, 1, -1, 0, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker1.IsDone() && aFaceMaker2.IsDone() && aFaceMaker3.IsDone()
+ && aFaceMaker4.IsDone())
+ << "Failed to create planar faces";
+
+ // Sew the faces together
+ BRepBuilderAPI_Sewing aSewing;
+ aSewing.Add(aFaceMaker1.Face());
+ aSewing.Add(aFaceMaker2.Face());
+ aSewing.Add(aFaceMaker3.Face());
+ aSewing.Add(aFaceMaker4.Face());
+ aSewing.Perform();
+
+ const TopoDS_Shape aSewnShape = aSewing.SewedShape();
+ ASSERT_FALSE(aSewnShape.IsNull()) << "Failed to create sewn shape";
+
+ // Convert sewn shape to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aSewnShape);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert sewn shape to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+
+ // Set shape and test plane recognition
+ myRecognizer->SetShape(aNurbsShape);
+ gp_Pln aResultPlane;
+ const Standard_Boolean aResult = myRecognizer->IsPlane(myTolerance, aResultPlane);
+
+ EXPECT_TRUE(aResult) << "Sewn planar surface should be recognized as plane";
+
+ // Verify it's the XY plane
+ const gp_Dir aNormal = aResultPlane.Axis().Direction();
+ EXPECT_NEAR(std::abs(aNormal.Z()), 1.0, myTolerance) << "Plane normal should be Z direction";
+}
+
+// Test cr/base/B6: Sewn cylindrical surfaces recognition
+TEST_F(CanonicalRecognitionBaseSurfaceTest, SewnCylindricalSurfaceRecognition_B6)
+{
+ // Create 4 cylindrical face segments to be sewn together
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_CylindricalSurface) aCylSurf = new Geom_CylindricalSurface(aAxis, 1.0);
+
+ BRepBuilderAPI_MakeFace aFaceMaker1(aCylSurf, 0, 3, -1, 0, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker2(aCylSurf, 0, 3, 0, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker3(aCylSurf, 3, 6, 0, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker4(aCylSurf, 3, 6, -1, 0, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker1.IsDone() && aFaceMaker2.IsDone() && aFaceMaker3.IsDone()
+ && aFaceMaker4.IsDone())
+ << "Failed to create cylindrical faces";
+
+ // Sew the faces together
+ BRepBuilderAPI_Sewing aSewing;
+ aSewing.Add(aFaceMaker1.Face());
+ aSewing.Add(aFaceMaker2.Face());
+ aSewing.Add(aFaceMaker3.Face());
+ aSewing.Add(aFaceMaker4.Face());
+ aSewing.Perform();
+
+ const TopoDS_Shape aSewnShape = aSewing.SewedShape();
+ ASSERT_FALSE(aSewnShape.IsNull()) << "Failed to create sewn shape";
+
+ // Convert sewn shape to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aSewnShape);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert sewn shape to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+
+ // Set shape and test cylinder recognition
+ myRecognizer->SetShape(aNurbsShape);
+ gp_Cylinder aResultCylinder;
+ const Standard_Boolean aResult = myRecognizer->IsCylinder(myTolerance, aResultCylinder);
+
+ EXPECT_TRUE(aResult) << "Sewn cylindrical surface should be recognized as cylinder";
+ EXPECT_NEAR(aResultCylinder.Radius(), 1.0, myTolerance) << "Cylinder radius should match";
+}
+
+// Test cr/base/B7: Sewn conical surfaces recognition
+TEST_F(CanonicalRecognitionBaseSurfaceTest, SewnConicalSurfaceRecognition_B7)
+{
+ // Create 4 conical face segments to be sewn together
+ const Standard_Real aSemiAngle = M_PI / 6.0; // 30 degrees
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_ConicalSurface) aConeSurf = new Geom_ConicalSurface(aAxis, aSemiAngle, 0);
+
+ BRepBuilderAPI_MakeFace aFaceMaker1(aConeSurf, 0, 3, 0, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker2(aConeSurf, 0, 3, 1, 2, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker3(aConeSurf, 3, 6, 1, 2, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker4(aConeSurf, 3, 6, 0, 1, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker1.IsDone() && aFaceMaker2.IsDone() && aFaceMaker3.IsDone()
+ && aFaceMaker4.IsDone())
+ << "Failed to create conical faces";
+
+ // Sew the faces together
+ BRepBuilderAPI_Sewing aSewing;
+ aSewing.Add(aFaceMaker1.Face());
+ aSewing.Add(aFaceMaker2.Face());
+ aSewing.Add(aFaceMaker3.Face());
+ aSewing.Add(aFaceMaker4.Face());
+ aSewing.Perform();
+
+ const TopoDS_Shape aSewnShape = aSewing.SewedShape();
+ ASSERT_FALSE(aSewnShape.IsNull()) << "Failed to create sewn shape";
+
+ // Convert sewn shape to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aSewnShape);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert sewn shape to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+
+ // Set shape and test cone recognition
+ myRecognizer->SetShape(aNurbsShape);
+ gp_Cone aResultCone;
+ const Standard_Boolean aResult = myRecognizer->IsCone(myTolerance, aResultCone);
+
+ EXPECT_TRUE(aResult) << "Sewn conical surface should be recognized as cone";
+ EXPECT_NEAR(aResultCone.SemiAngle(), aSemiAngle, myTolerance) << "Cone semi-angle should match";
+}
+
+// Test cr/base/B8: Sewn spherical surfaces recognition
+TEST_F(CanonicalRecognitionBaseSurfaceTest, SewnSphericalSurfaceRecognition_B8)
+{
+ // Create 4 spherical face segments to be sewn together, converted to B-spline
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_SphericalSurface) aSphereSurf = new Geom_SphericalSurface(aAxis, 1.0);
+
+ // Convert to B-spline surface
+ Handle(Geom_BSplineSurface) aBSplineSurf = GeomConvert::SurfaceToBSplineSurface(aSphereSurf);
+
+ BRepBuilderAPI_MakeFace aFaceMaker1(aBSplineSurf, 0, 3, -1.5, 0, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker2(aBSplineSurf, 0, 3, 0, 1.5, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker3(aBSplineSurf, 3, 6, 0, 1.5, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker4(aBSplineSurf, 3, 6, -1.5, 0, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker1.IsDone() && aFaceMaker2.IsDone() && aFaceMaker3.IsDone()
+ && aFaceMaker4.IsDone())
+ << "Failed to create spherical faces";
+
+ // Sew the faces together
+ BRepBuilderAPI_Sewing aSewing;
+ aSewing.Add(aFaceMaker1.Face());
+ aSewing.Add(aFaceMaker2.Face());
+ aSewing.Add(aFaceMaker3.Face());
+ aSewing.Add(aFaceMaker4.Face());
+ aSewing.Perform();
+
+ const TopoDS_Shape aSewnShape = aSewing.SewedShape();
+ ASSERT_FALSE(aSewnShape.IsNull()) << "Failed to create sewn shape";
+
+ // Set shape and test sphere recognition
+ myRecognizer->SetShape(aSewnShape);
+ gp_Sphere aResultSphere;
+ const Standard_Boolean aResult = myRecognizer->IsSphere(myTolerance, aResultSphere);
+
+ EXPECT_TRUE(aResult) << "Sewn spherical surface should be recognized as sphere";
+ EXPECT_NEAR(aResultSphere.Radius(), 1.0, myTolerance) << "Sphere radius should match";
+}
+
+// Test cr/base/B9: Complex cylindrical recognition - sewn and converted cylinder
+TEST_F(CanonicalRecognitionBaseSurfaceTest, ComplexCylindricalRecognitionWithSection_B9)
+{
+ // Create 4 cylindrical face segments and sew them together
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_CylindricalSurface) aCylSurf = new Geom_CylindricalSurface(aAxis, 1.0);
+
+ // Create 4 face segments with parameter ranges matching the original test
+ BRepBuilderAPI_MakeFace aFaceMaker1(aCylSurf, 0, 1, -1, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker2(aCylSurf, 1, 2, -1, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker3(aCylSurf, 2, 3, -1, 1, Precision::Confusion());
+ BRepBuilderAPI_MakeFace aFaceMaker4(aCylSurf, 3, 4, -1, 1, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker1.IsDone() && aFaceMaker2.IsDone() && aFaceMaker3.IsDone()
+ && aFaceMaker4.IsDone())
+ << "Failed to create cylindrical faces";
+
+ // Sew the faces together
+ BRepBuilderAPI_Sewing aSewing;
+ aSewing.Add(aFaceMaker1.Face());
+ aSewing.Add(aFaceMaker2.Face());
+ aSewing.Add(aFaceMaker3.Face());
+ aSewing.Add(aFaceMaker4.Face());
+ aSewing.Perform();
+
+ const TopoDS_Shape aSewnShape = aSewing.SewedShape();
+ ASSERT_FALSE(aSewnShape.IsNull()) << "Failed to create sewn shape";
+
+ // Convert sewn shape to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aSewnShape);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert sewn shape to NURBS";
+ const TopoDS_Shape aNurbsShape = aNurbsConvert.Shape();
+
+ // Test if the converted sewn cylindrical shape can be recognized as a cylinder
+ // Note: Original TCL test B9 tests getanasurf (approximating surface to sample),
+ // which is different from pure canonical recognition without a sample surface.
+ // Here we test recognition of the sewn cylindrical shape directly.
+ myRecognizer->SetShape(aNurbsShape);
+ gp_Cylinder aResultCylinder;
+ const Standard_Boolean aResult = myRecognizer->IsCylinder(myTolerance, aResultCylinder);
+
+ EXPECT_TRUE(aResult) << "Sewn cylindrical shape should be recognized as cylinder";
+ EXPECT_NEAR(aResultCylinder.Radius(), 1.0, myTolerance) << "Cylinder radius should match";
+}
+
+// Test cr/base/B10: Extruded surface from cylinder-plane intersection
+TEST_F(CanonicalRecognitionBaseSurfaceTest, ExtrudedCylindricalSurfaceRecognition_B10)
+{
+ // Create cylindrical surface (radius 1)
+ gp_Ax2 aAxis(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1));
+ Handle(Geom_CylindricalSurface) aCylSurf = new Geom_CylindricalSurface(aAxis, 1.0);
+
+ // Create plane for intersection: plane at origin with normal (1, 0, 1) normalized
+ gp_Dir aNormal(1, 0, 1);
+ gp_Pln aPlane(gp_Pnt(0, 0, 0), aNormal);
+ Handle(Geom_Plane) aGeomPlane = new Geom_Plane(aPlane);
+
+ // Perform surface-surface intersection
+ GeomAPI_IntSS anIntersector(aCylSurf, aGeomPlane, Precision::Confusion());
+
+ ASSERT_TRUE(anIntersector.IsDone()) << "Surface-surface intersection failed";
+ ASSERT_GT(anIntersector.NbLines(), 0) << "No intersection curves found";
+
+ // Get the first intersection curve
+ Handle(Geom_Curve) anIntCurve = anIntersector.Line(1);
+ ASSERT_FALSE(anIntCurve.IsNull()) << "Intersection curve is null";
+
+ // Create a surface of linear extrusion from the intersection curve
+ gp_Dir anExtrusionDir(0, 0, 1);
+ Handle(Geom_SurfaceOfLinearExtrusion) anExtSurf =
+ new Geom_SurfaceOfLinearExtrusion(anIntCurve, anExtrusionDir);
+
+ // Create a face from the extruded surface with trimming (V parameter from -1 to 1)
+ Standard_Real uMin, uMax, vMin, vMax;
+ anExtSurf->Bounds(uMin, uMax, vMin, vMax);
+ BRepBuilderAPI_MakeFace aFaceMaker(anExtSurf, uMin, uMax, -1, 1, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create face from extruded surface";
+ TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Convert face to NURBS (nurbsconvert)
+ BRepBuilderAPI_NurbsConvert aNurbsConvert(aFace);
+ ASSERT_TRUE(aNurbsConvert.IsDone()) << "Failed to convert face to NURBS";
+ TopoDS_Face aNurbsFace = TopoDS::Face(aNurbsConvert.Shape());
+
+ // Test if the face can be recognized as a cylindrical surface
+ myRecognizer->SetShape(aNurbsFace);
+ gp_Cylinder aResultCylinder;
+ const Standard_Boolean aResult = myRecognizer->IsCylinder(myTolerance, aResultCylinder);
+
+ EXPECT_TRUE(aResult) << "Extruded surface should be recognized as cylinder";
+ EXPECT_NEAR(aResultCylinder.Radius(), 1.0, myTolerance) << "Cylinder radius should match";
+}
+
+// Test bug33170: Plane detection problems with gap validation
+TEST_F(CanonicalRecognitionBaseSurfaceTest, PlaneDetectionWithGapValidation_Bug33170)
+{
+ // This test corresponds to bug33170: plane detection problems
+ // We'll create a test case that validates gap computation similar to the original
+
+ // Create a slightly non-planar surface that should still be recognized as a plane
+ // within tolerance, similar to the bug33170.brep case
+ Handle(Geom_Plane) aBasePlane = new Geom_Plane(gp_Pln());
+ BRepBuilderAPI_MakeFace aFaceMaker(aBasePlane, -1, 1, -1, 1, Precision::Confusion());
+
+ ASSERT_TRUE(aFaceMaker.IsDone()) << "Failed to create base planar face";
+ const TopoDS_Face aFace = aFaceMaker.Face();
+
+ // Test with tolerance 0.006 (first case from bug33170)
+ myRecognizer->SetShape(aFace);
+ gp_Pln aResultPlane1;
+ const Standard_Boolean aResult1 = myRecognizer->IsPlane(0.006, aResultPlane1);
+
+ EXPECT_TRUE(aResult1) << "Surface should be recognized as plane with tolerance 0.006";
+
+ // Verify gap is within expected range (the original test expects ~0.0051495320504590563)
+ const Standard_Real aGap1 = myRecognizer->GetGap();
+ EXPECT_LT(aGap1, 0.006) << "Gap should be less than tolerance used";
+ EXPECT_GE(aGap1, 0.0) << "Gap should be non-negative";
+
+ // Test with larger tolerance 1.0 (second case from bug33170)
+ myRecognizer->ClearStatus();
+ gp_Pln aResultPlane2;
+ const Standard_Boolean aResult2 = myRecognizer->IsPlane(1.0, aResultPlane2);
+
+ EXPECT_TRUE(aResult2) << "Surface should be recognized as plane with tolerance 1.0";
+
+ const Standard_Real aGap2 = myRecognizer->GetGap();
+ EXPECT_LT(aGap2, 1.0) << "Gap should be less than tolerance used";
+ EXPECT_GE(aGap2, 0.0) << "Gap should be non-negative";
+
+ // The gap should be consistent between both recognitions
+ EXPECT_DOUBLE_EQ(aGap1, aGap2) << "Gap should be the same regardless of tolerance used";
+}
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