def test_NCollection_Datamap_extension(self) -> None:
""" NCollection_DataMap class adds a Keys() method that return keys in a Python List
"""
box1 = BRepPrimAPI_MakeBox(gp_Pnt(0, 0, 0), gp_Pnt(20, 20, 20)).Shape()
box2 = BRepPrimAPI_MakeBox(gp_Pnt(10, 10, 10), gp_Pnt(30, 30, 30)).Shape()
# Create meshes for the proximity algorithm
deflection = 1e-3
mesher1 = BRepMesh_IncrementalMesh(box1, deflection)
mesher2 = BRepMesh_IncrementalMesh(box2, deflection)
mesher1.Perform()
mesher2.Perform()
# Perform shape proximity check
tolerance = 0.1
isect_test = BRepExtrema_ShapeProximity(box1, box2, tolerance)
isect_test.Perform()
# Get intersect faces from Shape1
overlaps1 = isect_test.OverlapSubShapes1()
face_indices1 = overlaps1.Keys()
self.assertEqual(face_indices1, [1, 3, 5])
display, start_display, add_menu, add_function_to_menu = init_display()
# create two boxes that intersect
box1 = BRepPrimAPI_MakeBox(gp_Pnt(0, 0, 0), gp_Pnt(20, 20, 20)).Shape()
box2 = BRepPrimAPI_MakeBox(gp_Pnt(10, 10, 10), gp_Pnt(30, 30, 30)).Shape()
# Create meshes for the proximity algorithm
deflection = 1e-3
mesher1 = BRepMesh_IncrementalMesh(box1, deflection)
mesher2 = BRepMesh_IncrementalMesh(box2, deflection)
mesher1.Perform()
mesher2.Perform()
# Perform shape proximity check
tolerance = 0.1
isect_test = BRepExtrema_ShapeProximity(box1, box2, tolerance)
isect_test.Perform()
# Get intersect faces from Shape1
overlaps1 = isect_test.OverlapSubShapes1()
face_indices1 = overlaps1.Keys()
shape_1_faces = []
for ind in face_indices1:
face = isect_test.GetSubShape1(ind)
shape_1_faces.append(face)
# Get intersect faces from Shape2
overlaps2 = isect_test.OverlapSubShapes2()
face_indices2 = overlaps2.Keys()
shape_2_faces = []
for ind in face_indices2: