# system modules import copy import math import os import random import re from typing import Optional import unittest from random import uniform from OCP.BRepBuilderAPI import BRepBuilderAPI_MakeEdge from OCP.gp import ( gp, gp_Ax1, gp_Ax2, gp_Circ, gp_Dir, gp_Elips, gp_EulerSequence, gp_Pnt, gp_Quaternion, gp_Trsf, gp_Vec, gp_XYZ, ) from build123d.build_common import GridLocations, Locations, PolarLocations from build123d.build_enums import ( Align, CenterOf, GeomType, Kind, PositionMode, SortBy, Until, ) from build123d.build_part import BuildPart from build123d.operations_part import extrude from build123d.objects_part import Box from build123d.build_sketch import BuildSketch from build123d.objects_sketch import Circle, Rectangle, RegularPolygon from build123d.geometry import ( Axis, BoundBox, Color, Location, Matrix, Rotation, Vector, VectorLike, ) from build123d.importers import import_brep, import_step, import_stl, import_svg from build123d.topology import ( BallJoint, Compound, CylindricalJoint, Edge, Face, LinearJoint, Plane, RevoluteJoint, RigidJoint, Shape, ShapeList, Shell, Solid, Vertex, Wire, edges_to_wires, polar, ) DEG2RAD = math.pi / 180 RAD2DEG = 180 / math.pi class DirectApiTestCase(unittest.TestCase): def assertTupleAlmostEquals( self, first: tuple[float, ...], second: tuple[float, ...], places: int, msg: Optional[str] = None, ): """Check Tuples""" self.assertEqual(len(second), len(first)) for i, j in zip(second, first): self.assertAlmostEqual(i, j, places, msg=msg) def assertVectorAlmostEquals( self, first: Vector, second: VectorLike, places: int, msg: Optional[str] = None ): second_vector = Vector(second) self.assertAlmostEqual(first.X, second_vector.X, places, msg=msg) self.assertAlmostEqual(first.Y, second_vector.Y, places, msg=msg) self.assertAlmostEqual(first.Z, second_vector.Z, places, msg=msg) class TestAssembly(unittest.TestCase): @staticmethod def create_test_assembly() -> Compound: box = Solid.make_box(1, 1, 1) box.orientation = (45, 45, 0) box.label = "box" sphere = Solid.make_sphere(1) sphere.label = "sphere" sphere.position = (1, 2, 3) assembly = Compound(label="assembly", children=[box]) sphere.parent = assembly return assembly def assertTopoEqual(self, actual_topo: str, expected_topo_lines: list[str]): actual_topo_lines = actual_topo.splitlines() self.assertEqual(len(actual_topo_lines), len(expected_topo_lines)) for actual_line, expected_line in zip(actual_topo_lines, expected_topo_lines): start, end = re.split(r"at 0x[0-9a-f]+,", expected_line, 2, re.I) self.assertTrue(actual_line.startswith(start)) self.assertTrue(actual_line.endswith(end)) def test_attributes(self): box = Solid.make_box(1, 1, 1) box.label = "box" sphere = Solid.make_sphere(1) sphere.label = "sphere" assembly = Compound(label="assembly", children=[box]) sphere.parent = assembly self.assertEqual(len(box.children), 0) self.assertEqual(box.label, "box") self.assertEqual(box.parent, assembly) self.assertEqual(sphere.parent, assembly) self.assertEqual(len(assembly.children), 2) def test_show_topology_compound(self): assembly = TestAssembly.create_test_assembly() expected = [ "assembly Compound at 0x7fced0fd1b50, Location(p=(0.00, 0.00, 0.00), o=(-0.00, 0.00, -0.00))", "├── box Solid at 0x7fced102d3a0, Location(p=(0.00, 0.00, 0.00), o=(45.00, 45.00, -0.00))", "└── sphere Solid at 0x7fced0fd1f10, Location(p=(1.00, 2.00, 3.00), o=(-0.00, 0.00, -0.00))", ] self.assertTopoEqual(assembly.show_topology("Solid"), expected) def test_show_topology_shape_location(self): assembly = TestAssembly.create_test_assembly() expected = [ "Solid at 0x7f3754501530, Position(1.0, 2.0, 3.0)", "└── Shell at 0x7f3754501a70, Position(1.0, 2.0, 3.0)", " └── Face at 0x7f3754501030, Position(1.0, 2.0, 3.0)", ] self.assertTopoEqual( assembly.children[1].show_topology("Face", show_center=False), expected ) def test_show_topology_shape(self): assembly = TestAssembly.create_test_assembly() expected = [ "Solid at 0x7f6279043ab0, Center(1.0, 2.0, 3.0)", "└── Shell at 0x7f62790438f0, Center(1.0, 2.0, 3.0)", " └── Face at 0x7f62790439f0, Center(1.0, 2.0, 3.0)", ] self.assertTopoEqual(assembly.children[1].show_topology("Face"), expected) def test_remove_child(self): assembly = TestAssembly.create_test_assembly() self.assertEqual(len(assembly.children), 2) assembly.children = list(assembly.children)[1:] self.assertEqual(len(assembly.children), 1) def test_do_children_intersect(self): ( overlap, pair, distance, ) = TestAssembly.create_test_assembly().do_children_intersect() self.assertFalse(overlap) box = Solid.make_box(1, 1, 1) box.orientation = (45, 45, 0) box.label = "box" sphere = Solid.make_sphere(1) sphere.label = "sphere" sphere.position = (0, 0, 0) assembly = Compound(label="assembly", children=[box]) sphere.parent = assembly overlap, pair, distance = assembly.do_children_intersect() self.assertTrue(overlap) class TestAxis(DirectApiTestCase): """Test the Axis class""" def test_axis_from_occt(self): occt_axis = gp_Ax1(gp_Pnt(1, 1, 1), gp_Dir(0, 1, 0)) test_axis = Axis.from_occt(occt_axis) self.assertVectorAlmostEquals(test_axis.position, (1, 1, 1), 5) self.assertVectorAlmostEquals(test_axis.direction, (0, 1, 0), 5) def test_axis_repr_and_str(self): self.assertEqual(repr(Axis.X), "((0.0, 0.0, 0.0),(1.0, 0.0, 0.0))") self.assertEqual(str(Axis.Y), "Axis: ((0.0, 0.0, 0.0),(0.0, 1.0, 0.0))") def test_axis_copy(self): x_copy = copy.copy(Axis.X) self.assertVectorAlmostEquals(x_copy.position, (0, 0, 0), 5) self.assertVectorAlmostEquals(x_copy.direction, (1, 0, 0), 5) x_copy = copy.deepcopy(Axis.X) self.assertVectorAlmostEquals(x_copy.position, (0, 0, 0), 5) self.assertVectorAlmostEquals(x_copy.direction, (1, 0, 0), 5) def test_axis_to_location(self): # TODO: Verify this is correct x_location = Axis.X.to_location() self.assertTrue(isinstance(x_location, Location)) self.assertVectorAlmostEquals(x_location.position, (0, 0, 0), 5) self.assertVectorAlmostEquals(x_location.orientation, (0, 90, 180), 5) def test_axis_located(self): y_axis = Axis.Z.located(Location((0, 0, 1), (-90, 0, 0))) self.assertVectorAlmostEquals(y_axis.position, (0, 0, 1), 5) self.assertVectorAlmostEquals(y_axis.direction, (0, 1, 0), 5) def test_axis_to_plane(self): x_plane = Axis.X.to_plane() self.assertTrue(isinstance(x_plane, Plane)) self.assertVectorAlmostEquals(x_plane.origin, (0, 0, 0), 5) self.assertVectorAlmostEquals(x_plane.z_dir, (1, 0, 0), 5) def test_axis_is_coaxial(self): self.assertTrue(Axis.X.is_coaxial(Axis((0, 0, 0), (1, 0, 0)))) self.assertFalse(Axis.X.is_coaxial(Axis((0, 0, 1), (1, 0, 0)))) self.assertFalse(Axis.X.is_coaxial(Axis((0, 0, 0), (0, 1, 0)))) def test_axis_is_normal(self): self.assertTrue(Axis.X.is_normal(Axis.Y)) self.assertFalse(Axis.X.is_normal(Axis.X)) def test_axis_is_opposite(self): self.assertTrue(Axis.X.is_opposite(Axis((1, 1, 1), (-1, 0, 0)))) self.assertFalse(Axis.X.is_opposite(Axis.X)) def test_axis_is_parallel(self): self.assertTrue(Axis.X.is_parallel(Axis((1, 1, 1), (1, 0, 0)))) self.assertFalse(Axis.X.is_parallel(Axis.Y)) def test_axis_angle_between(self): self.assertAlmostEqual(Axis.X.angle_between(Axis.Y), 90, 5) self.assertAlmostEqual( Axis.X.angle_between(Axis((1, 1, 1), (-1, 0, 0))), 180, 5 ) def test_axis_reverse(self): self.assertVectorAlmostEquals(Axis.X.reverse().direction, (-1, 0, 0), 5) def test_axis_reverse_op(self): axis = -Axis.X self.assertVectorAlmostEquals(axis.direction, (-1, 0, 0), 5) class TestBoundBox(DirectApiTestCase): def test_basic_bounding_box(self): v = Vertex(1, 1, 1) v2 = Vertex(2, 2, 2) self.assertEqual(BoundBox, type(v.bounding_box())) self.assertEqual(BoundBox, type(v2.bounding_box())) bb1 = v.bounding_box().add(v2.bounding_box()) # OCC uses some approximations self.assertAlmostEqual(bb1.size.X, 1.0, 1) # Test adding to an existing bounding box v0 = Vertex(0, 0, 0) bb2 = v0.bounding_box().add(v.bounding_box()) bb3 = bb1.add(bb2) self.assertVectorAlmostEquals(bb3.size, (2, 2, 2), 7) bb3 = bb2.add((3, 3, 3)) self.assertVectorAlmostEquals(bb3.size, (3, 3, 3), 7) bb3 = bb2.add(Vector(3, 3, 3)) self.assertVectorAlmostEquals(bb3.size, (3, 3, 3), 7) # Test 2D bounding boxes bb1 = Vertex(1, 1, 0).bounding_box().add(Vertex(2, 2, 0).bounding_box()) bb2 = Vertex(0, 0, 0).bounding_box().add(Vertex(3, 3, 0).bounding_box()) bb3 = Vertex(0, 0, 0).bounding_box().add(Vertex(1.5, 1.5, 0).bounding_box()) # Test that bb2 contains bb1 self.assertEqual(bb2, BoundBox.find_outside_box_2d(bb1, bb2)) self.assertEqual(bb2, BoundBox.find_outside_box_2d(bb2, bb1)) # Test that neither bounding box contains the other self.assertIsNone(BoundBox.find_outside_box_2d(bb1, bb3)) # Test creation of a bounding box from a shape - note the low accuracy comparison # as the box is a little larger than the shape bb1 = BoundBox._from_topo_ds(Solid.make_cylinder(1, 1).wrapped, optimal=False) self.assertVectorAlmostEquals(bb1.size, (2, 2, 1), 1) bb2 = BoundBox._from_topo_ds( Solid.make_cylinder(0.5, 0.5).translate((0, 0, 0.1)).wrapped, optimal=False ) self.assertTrue(bb2.is_inside(bb1)) def test_bounding_box_repr(self): bb = Solid.make_box(1, 1, 1).bounding_box() self.assertEqual( repr(bb), "bbox: 0.0 <= x <= 1.0, 0.0 <= y <= 1.0, 0.0 <= z <= 1.0" ) def test_center_of_boundbox(self): self.assertVectorAlmostEquals( Solid.make_box(1, 1, 1).bounding_box().center(), (0.5, 0.5, 0.5), 5, ) def test_combined_center_of_boundbox(self): pass # def test_to_solid(self): # bbox = Solid.make_sphere(1).bounding_box() # self.assertVectorAlmostEquals(bbox.min, (-1, -1, -1), 5) # self.assertVectorAlmostEquals(bbox.max, (1, 1, 1), 5) # self.assertAlmostEqual(bbox.to_solid().volume, 2**3, 5) class TestCadObjects(DirectApiTestCase): def _make_circle(self): circle = gp_Circ(gp_Ax2(gp_Pnt(1, 2, 3), gp.DZ_s()), 2.0) return Shape.cast(BRepBuilderAPI_MakeEdge(circle).Edge()) def _make_ellipse(self): ellipse = gp_Elips(gp_Ax2(gp_Pnt(1, 2, 3), gp.DZ_s()), 4.0, 2.0) return Shape.cast(BRepBuilderAPI_MakeEdge(ellipse).Edge()) def test_edge_wrapper_center(self): e = self._make_circle() self.assertVectorAlmostEquals(e.center(CenterOf.MASS), (1.0, 2.0, 3.0), 3) def test_edge_wrapper_ellipse_center(self): e = self._make_ellipse() w = Wire.make_wire([e]) self.assertVectorAlmostEquals( Face.make_from_wires(w).center(), (1.0, 2.0, 3.0), 3 ) def test_edge_wrapper_make_circle(self): halfCircleEdge = Edge.make_circle(radius=10, start_angle=0, end_angle=180) # self.assertVectorAlmostEquals((0.0, 5.0, 0.0), halfCircleEdge.centerOfBoundBox(0.0001),3) self.assertVectorAlmostEquals(halfCircleEdge.start_point(), (10.0, 0.0, 0.0), 3) self.assertVectorAlmostEquals(halfCircleEdge.end_point(), (-10.0, 0.0, 0.0), 3) def test_edge_wrapper_make_tangent_arc(self): tangent_arc = Edge.make_tangent_arc( Vector(1, 1), # starts at 1, 1 Vector(0, 1), # tangent at start of arc is in the +y direction Vector(2, 1), # arc cureturn_valuees 180 degrees and ends at 2, 1 ) self.assertVectorAlmostEquals(tangent_arc.start_point(), (1, 1, 0), 3) self.assertVectorAlmostEquals(tangent_arc.end_point(), (2, 1, 0), 3) self.assertVectorAlmostEquals( tangent_arc.tangent_at(location_param=0), (0, 1, 0), 3 ) self.assertVectorAlmostEquals( tangent_arc.tangent_at(location_param=0.5), (1, 0, 0), 3 ) self.assertVectorAlmostEquals( tangent_arc.tangent_at(location_param=1), (0, -1, 0), 3 ) def test_edge_wrapper_make_ellipse1(self): # Check x_radius > y_radius x_radius, y_radius = 20, 10 angle1, angle2 = -75.0, 90.0 arcEllipseEdge = Edge.make_ellipse( x_radius=x_radius, y_radius=y_radius, plane=Plane.XY, start_angle=angle1, end_angle=angle2, ) start = ( x_radius * math.cos(angle1 * DEG2RAD), y_radius * math.sin(angle1 * DEG2RAD), 0.0, ) end = ( x_radius * math.cos(angle2 * DEG2RAD), y_radius * math.sin(angle2 * DEG2RAD), 0.0, ) self.assertVectorAlmostEquals(arcEllipseEdge.start_point(), start, 3) self.assertVectorAlmostEquals(arcEllipseEdge.end_point(), end, 3) def test_edge_wrapper_make_ellipse2(self): # Check x_radius < y_radius x_radius, y_radius = 10, 20 angle1, angle2 = 0.0, 45.0 arcEllipseEdge = Edge.make_ellipse( x_radius=x_radius, y_radius=y_radius, plane=Plane.XY, start_angle=angle1, end_angle=angle2, ) start = ( x_radius * math.cos(angle1 * DEG2RAD), y_radius * math.sin(angle1 * DEG2RAD), 0.0, ) end = ( x_radius * math.cos(angle2 * DEG2RAD), y_radius * math.sin(angle2 * DEG2RAD), 0.0, ) self.assertVectorAlmostEquals(arcEllipseEdge.start_point(), start, 3) self.assertVectorAlmostEquals(arcEllipseEdge.end_point(), end, 3) def test_edge_wrapper_make_circle_with_ellipse(self): # Check x_radius == y_radius x_radius, y_radius = 20, 20 angle1, angle2 = 15.0, 60.0 arcEllipseEdge = Edge.make_ellipse( x_radius=x_radius, y_radius=y_radius, plane=Plane.XY, start_angle=angle1, end_angle=angle2, ) start = ( x_radius * math.cos(angle1 * DEG2RAD), y_radius * math.sin(angle1 * DEG2RAD), 0.0, ) end = ( x_radius * math.cos(angle2 * DEG2RAD), y_radius * math.sin(angle2 * DEG2RAD), 0.0, ) self.assertVectorAlmostEquals(arcEllipseEdge.start_point(), start, 3) self.assertVectorAlmostEquals(arcEllipseEdge.end_point(), end, 3) def test_face_wrapper_make_rect(self): mplane = Face.make_rect(10, 10) self.assertVectorAlmostEquals(mplane.normal_at(), (0.0, 0.0, 1.0), 3) # def testCompoundcenter(self): # """ # Tests whether or not a proper weighted center can be found for a compound # """ # def cylinders(self, radius, height): # c = Solid.make_cylinder(radius, height, Vector()) # # Combine all the cylinders into a single compound # r = self.eachpoint(lambda loc: c.located(loc), True).combinesolids() # return r # Workplane.cyl = cylinders # # Now test. here we want weird workplane to see if the objects are transformed right # s = ( # Workplane("XY") # .rect(2.0, 3.0, for_construction=true) # .vertices() # .cyl(0.25, 0.5) # ) # self.assertEqual(4, len(s.val().solids())) # self.assertVectorAlmostEquals((0.0, 0.0, 0.25), s.val().center, 3) def test_translate(self): e = Edge.make_circle(2, Plane((1, 2, 3))) e2 = e.translate(Vector(0, 0, 1)) self.assertVectorAlmostEquals(e2.center(CenterOf.MASS), (1.0, 2.0, 4.0), 3) def test_vertices(self): e = Shape.cast(BRepBuilderAPI_MakeEdge(gp_Pnt(0, 0, 0), gp_Pnt(1, 1, 0)).Edge()) self.assertEqual(2, len(e.vertices())) def test_edge_wrapper_radius(self): # get a radius from a simple circle e0 = Edge.make_circle(2.4) self.assertAlmostEqual(e0.radius, 2.4) # radius of an arc e1 = Edge.make_circle( 1.8, Plane(origin=(5, 6, 7), z_dir=(1, 1, 1)), start_angle=20, end_angle=30 ) self.assertAlmostEqual(e1.radius, 1.8) # test value errors e2 = Edge.make_ellipse(10, 20) with self.assertRaises(ValueError): e2.radius # radius from a wire w0 = Wire.make_circle(10, Plane(origin=(1, 2, 3), z_dir=(-1, 0, 1))) self.assertAlmostEqual(w0.radius, 10) # radius from a wire with multiple edges rad = 2.3 plane = Plane(origin=(7, 8, 0), z_dir=(1, 0.5, 0.1)) w1 = Wire.make_wire( [ Edge.make_circle(rad, plane, 0, 10), Edge.make_circle(rad, plane, 10, 25), Edge.make_circle(rad, plane, 25, 230), ] ) self.assertAlmostEqual(w1.radius, rad) # test value error from wire w2 = Wire.make_polygon( [ Vector(-1, 0, 0), Vector(0, 1, 0), Vector(1, -1, 0), ] ) with self.assertRaises(ValueError): w2.radius # (I think) the radius of a wire is the radius of it's first edge. # Since this is stated in the docstring better make sure. no_rad = Wire.make_wire( [ Edge.make_line(Vector(0, 0, 0), Vector(0, 1, 0)), Edge.make_circle(1.0, start_angle=90, end_angle=270), ] ) with self.assertRaises(ValueError): no_rad.radius yes_rad = Wire.make_wire( [ Edge.make_circle(1.0, start_angle=90, end_angle=270), Edge.make_line(Vector(0, -1, 0), Vector(0, 1, 0)), ] ) self.assertAlmostEqual(yes_rad.radius, 1.0) many_rad = Wire.make_wire( [ Edge.make_circle(1.0, start_angle=0, end_angle=180), Edge.make_circle(3.0, Plane((2, 0, 0)), start_angle=180, end_angle=359), ] ) self.assertAlmostEqual(many_rad.radius, 1.0) class TestColor(unittest.TestCase): def test_name1(self): c = Color("blue") self.assertEqual(c.wrapped.GetRGB().Red(), 0.0) self.assertEqual(c.wrapped.GetRGB().Green(), 0.0) self.assertEqual(c.wrapped.GetRGB().Blue(), 1.0) self.assertEqual(c.wrapped.Alpha(), 0.0) def test_name2(self): c = Color("blue", alpha=0.5) self.assertEqual(c.wrapped.GetRGB().Red(), 0.0) self.assertEqual(c.wrapped.GetRGB().Green(), 0.0) self.assertEqual(c.wrapped.GetRGB().Blue(), 1.0) self.assertEqual(c.wrapped.Alpha(), 0.5) def test_name3(self): c = Color("blue", 0.5) self.assertEqual(c.wrapped.GetRGB().Red(), 0.0) self.assertEqual(c.wrapped.GetRGB().Green(), 0.0) self.assertEqual(c.wrapped.GetRGB().Blue(), 1.0) self.assertEqual(c.wrapped.Alpha(), 0.5) def test_rgb0(self): c = Color(0.0, 1.0, 0.0) self.assertEqual(c.wrapped.GetRGB().Red(), 0.0) self.assertEqual(c.wrapped.GetRGB().Green(), 1.0) self.assertEqual(c.wrapped.GetRGB().Blue(), 0.0) def test_rgba1(self): c = Color(1.0, 1.0, 0.0, 0.5) self.assertEqual(c.wrapped.GetRGB().Red(), 1.0) self.assertEqual(c.wrapped.GetRGB().Green(), 1.0) self.assertEqual(c.wrapped.GetRGB().Blue(), 0.0) self.assertEqual(c.wrapped.Alpha(), 0.5) def test_rgba2(self): c = Color(1.0, 1.0, 0.0, alpha=0.5) self.assertEqual(c.wrapped.GetRGB().Red(), 1.0) self.assertEqual(c.wrapped.GetRGB().Green(), 1.0) self.assertEqual(c.wrapped.GetRGB().Blue(), 0.0) self.assertEqual(c.wrapped.Alpha(), 0.5) def test_rgba3(self): c = Color(red=0.1, green=0.2, blue=0.3, alpha=0.5) self.assertAlmostEqual(c.wrapped.GetRGB().Red(), 0.1, 5) self.assertAlmostEqual(c.wrapped.GetRGB().Green(), 0.2, 5) self.assertAlmostEqual(c.wrapped.GetRGB().Blue(), 0.3, 5) self.assertAlmostEqual(c.wrapped.Alpha(), 0.5, 5) def test_bad_color_name(self): with self.assertRaises(ValueError): Color("build123d") def test_to_tuple(self): c = Color("blue", alpha=0.5) self.assertEqual(c.to_tuple()[0], 0.0) self.assertEqual(c.to_tuple()[1], 0.0) self.assertEqual(c.to_tuple()[2], 1.0) self.assertEqual(c.to_tuple()[3], 0.5) class TestCompound(DirectApiTestCase): def test_make_text(self): arc = Edge.make_three_point_arc((-50, 0, 0), (0, 20, 0), (50, 0, 0)) text = Compound.make_text("test", 10, text_path=arc) self.assertEqual(len(text.faces()), 4) text = Compound.make_text( "test", 10, align=(Align.MAX, Align.MAX), text_path=arc ) self.assertEqual(len(text.faces()), 4) def test_fuse(self): box1 = Solid.make_box(1, 1, 1) box2 = Solid.make_box(1, 1, 1, Plane((1, 0, 0))) combined = Compound.make_compound([box1]).fuse(box2, glue=True) self.assertTrue(combined.is_valid()) self.assertAlmostEqual(combined.volume, 2, 5) fuzzy = Compound.make_compound([box1]).fuse(box2, tol=1e-6) self.assertTrue(fuzzy.is_valid()) self.assertAlmostEqual(fuzzy.volume, 2, 5) def test_remove(self): box1 = Solid.make_box(1, 1, 1) box2 = Solid.make_box(1, 1, 1, Plane((2, 0, 0))) combined = Compound.make_compound([box1, box2]) self.assertTrue(len(combined._remove(box2).solids()), 1) def test_repr(self): simple = Compound.make_compound([Solid.make_box(1, 1, 1)]) simple_str = repr(simple).split("0x")[0] + repr(simple).split(", ")[1] self.assertEqual(simple_str, "Compound at label()") assembly = Compound.make_compound([Solid.make_box(1, 1, 1)]) assembly.children = [Solid.make_box(1, 1, 1)] assembly.label = "test" assembly_str = repr(assembly).split("0x")[0] + repr(assembly).split(", l")[1] self.assertEqual(assembly_str, "Compound at abel(test), #children(1)") def test_center(self): test_compound = Compound.make_compound( [ Solid.make_box(2, 2, 2).locate(Location((-1, -1, -1))), Solid.make_box(1, 1, 1).locate(Location((8.5, -0.5, -0.5))), ] ) self.assertVectorAlmostEquals(test_compound.center(CenterOf.MASS), (1, 0, 0), 5) self.assertVectorAlmostEquals( test_compound.center(CenterOf.BOUNDING_BOX), (4.25, 0, 0), 5 ) with self.assertRaises(ValueError): test_compound.center(CenterOf.GEOMETRY) class TestEdge(DirectApiTestCase): def test_close(self): self.assertAlmostEqual( Edge.make_circle(1, end_angle=180).close().length, math.pi + 2, 5 ) self.assertAlmostEqual(Edge.make_circle(1).close().length, 2 * math.pi, 5) def test_arc_center(self): self.assertVectorAlmostEquals(Edge.make_ellipse(2, 1).arc_center, (0, 0, 0), 5) with self.assertRaises(ValueError): Edge.make_line((0, 0, 0), (0, 0, 1)).arc_center def test_spline_with_parameters(self): spline = Edge.make_spline( points=[(0, 0, 0), (1, 1, 0), (2, 0, 0)], parameters=[0.0, 0.4, 1.0] ) self.assertVectorAlmostEquals(spline.end_point(), (2, 0, 0), 5) with self.assertRaises(ValueError): Edge.make_spline( points=[(0, 0, 0), (1, 1, 0), (2, 0, 0)], parameters=[0.0, 1.0] ) with self.assertRaises(ValueError): Edge.make_spline( points=[(0, 0, 0), (1, 1, 0), (2, 0, 0)], tangents=[(1, 1, 0)] ) def test_spline_approx(self): spline = Edge.make_spline_approx([(0, 0), (1, 1), (2, 1), (3, 0)]) self.assertVectorAlmostEquals(spline.end_point(), (3, 0, 0), 5) spline = Edge.make_spline_approx( [(0, 0), (1, 1), (2, 1), (3, 0)], smoothing=(1.0, 5.0, 10.0) ) self.assertVectorAlmostEquals(spline.end_point(), (3, 0, 0), 5) def test_distribute_locations(self): line = Edge.make_line((0, 0, 0), (10, 0, 0)) locs = line.distribute_locations(3) for i, x in enumerate([0, 5, 10]): self.assertVectorAlmostEquals(locs[i].position, (x, 0, 0), 5) self.assertVectorAlmostEquals(locs[0].orientation, (0, 90, 180), 5) locs = line.distribute_locations(3, positions_only=True) for i, x in enumerate([0, 5, 10]): self.assertVectorAlmostEquals(locs[i].position, (x, 0, 0), 5) self.assertVectorAlmostEquals(locs[0].orientation, (0, 0, 0), 5) # def test_overlaps(self): # self.assertTrue( # Edge.make_circle(10, end_angle=60).overlaps( # Edge.make_circle(10, start_angle=30, end_angle=90) # ) # ) # tolerance = 1e-4 # self.assertFalse( # Edge.make_line((-10,0),(0,0)).overlaps(Edge.make_line((1.1*tolerance,0),(10,0)), tolerance) # ) def test_to_wire(self): edge = Edge.make_line((0, 0, 0), (1, 1, 1)) for end in [0, 1]: self.assertVectorAlmostEquals( edge.position_at(end), edge.to_wire().position_at(end), 5, ) def test_arc_center2(self): edges = [ Edge.make_circle(1, plane=Plane((1, 2, 3)), end_angle=30), Edge.make_ellipse(1, 0.5, plane=Plane((1, 2, 3)), end_angle=30), ] for edge in edges: self.assertVectorAlmostEquals(edge.arc_center, (1, 2, 3), 5) with self.assertRaises(ValueError): Edge.make_line((0, 0), (1, 1)).arc_center def test_intersections(self): circle = Edge.make_circle(1) line = Edge.make_line((0, -2), (0, 2)) crosses = circle.intersections(Plane.XY, line) for target, actual in zip([(0, 1, 0), (0, -1, 0)], crosses): self.assertVectorAlmostEquals(actual, target, 5) with self.assertRaises(ValueError): circle.intersections(Plane.XY, Edge.make_line((0, 0, -1), (0, 0, 1))) with self.assertRaises(ValueError): circle.intersections(Plane.XZ, Edge.make_line((0, 0, -1), (0, 0, 1))) self_intersect = Edge.make_spline([(-3, 2), (3, -2), (4, 0), (3, 2), (-3, -2)]) self.assertVectorAlmostEquals( self_intersect.intersections(Plane.XY)[0], (-2.6861636507066047, 0, 0), 5, ) def test_trim(self): line = Edge.make_line((-2, 0), (2, 0)) self.assertVectorAlmostEquals( line.trim(0.25, 0.75).position_at(0), (-1, 0, 0), 5 ) self.assertVectorAlmostEquals( line.trim(0.25, 0.75).position_at(1), (1, 0, 0), 5 ) with self.assertRaises(ValueError): line.trim(0.75, 0.25) def test_bezier(self): with self.assertRaises(ValueError): Edge.make_bezier((1, 1)) cntl_pnts = [(1, 2, 3)] * 30 with self.assertRaises(ValueError): Edge.make_bezier(*cntl_pnts) with self.assertRaises(ValueError): Edge.make_bezier((0, 0, 0), (1, 1, 1), weights=[1.0]) bezier = Edge.make_bezier((0, 0), (0, 1), (1, 1), (1, 0)) bbox = bezier.bounding_box() self.assertVectorAlmostEquals(bbox.min, (0, 0, 0), 5) self.assertVectorAlmostEquals(bbox.max, (1, 0.75, 0), 5) def test_mid_way(self): mid = Edge.make_mid_way( Edge.make_line((0, 0), (0, 1)), Edge.make_line((1, 0), (1, 1)), 0.25 ) self.assertVectorAlmostEquals(mid.position_at(0), (0.25, 0, 0), 5) self.assertVectorAlmostEquals(mid.position_at(1), (0.25, 1, 0), 5) def test_distribute_locations2(self): with self.assertRaises(ValueError): Edge.make_circle(1).distribute_locations(1) locs = Edge.make_circle(1).distribute_locations(5, positions_only=True) for i, loc in enumerate(locs): self.assertVectorAlmostEquals( loc.position, Vector(1, 0, 0).rotate(Axis.Z, i * 90).to_tuple(), 5, ) self.assertVectorAlmostEquals(loc.orientation, (0, 0, 0), 5) class TestFace(DirectApiTestCase): def test_make_surface_from_curves(self): bottom_edge = Edge.make_circle(radius=1, end_angle=90) top_edge = Edge.make_circle(radius=1, plane=Plane((0, 0, 1)), end_angle=90) curved = Face.make_surface_from_curves(bottom_edge, top_edge) self.assertTrue(curved.is_valid()) self.assertAlmostEqual(curved.area, math.pi / 2, 5) self.assertVectorAlmostEquals( curved.normal_at(), (math.sqrt(2) / 2, math.sqrt(2) / 2, 0), 5 ) bottom_wire = Wire.make_circle(1) top_wire = Wire.make_circle(1, Plane((0, 0, 1))) curved = Face.make_surface_from_curves(bottom_wire, top_wire) self.assertTrue(curved.is_valid()) self.assertAlmostEqual(curved.area, 2 * math.pi, 5) def test_center(self): test_face = Face.make_from_wires( Wire.make_polygon([(0, 0), (1, 0), (1, 1), (0, 0)]) ) self.assertVectorAlmostEquals( test_face.center(CenterOf.MASS), (2 / 3, 1 / 3, 0), 1 ) self.assertVectorAlmostEquals( test_face.center(CenterOf.BOUNDING_BOX), (0.5, 0.5, 0), 5, ) def test_make_rect(self): test_face = Face.make_plane() self.assertVectorAlmostEquals(test_face.normal_at(), (0, 0, 1), 5) def test_length_width(self): test_face = Face.make_rect(10, 8, Plane.XZ) self.assertAlmostEqual(test_face.length, 8, 5) self.assertAlmostEqual(test_face.width, 10, 5) def test_geometry(self): box = Solid.make_box(1, 1, 2) self.assertEqual(box.faces().sort_by(Axis.Z).last.geometry, "SQUARE") self.assertEqual(box.faces().sort_by(Axis.Y).last.geometry, "RECTANGLE") with BuildPart() as test: with BuildSketch(): RegularPolygon(1, 3) extrude(amount=1) self.assertEqual(test.faces().sort_by(Axis.Z).last.geometry, "POLYGON") def test_negate(self): square = Face.make_rect(1, 1) self.assertVectorAlmostEquals(square.normal_at(), (0, 0, 1), 5) flipped_square = -square self.assertVectorAlmostEquals(flipped_square.normal_at(), (0, 0, -1), 5) def test_offset(self): bbox = Face.make_rect(2, 2, Plane.XY).offset(5).bounding_box() self.assertVectorAlmostEquals(bbox.min, (-1, -1, 5), 5) self.assertVectorAlmostEquals(bbox.max, (1, 1, 5), 5) def test_make_from_wires(self): outer = Wire.make_circle(10) inners = [ Wire.make_circle(1).locate(Location((-2, 2, 0))), Wire.make_circle(1).locate(Location((2, 2, 0))), ] happy = Face.make_from_wires(outer, inners) self.assertAlmostEqual(happy.area, math.pi * (10**2 - 2), 5) outer = Edge.make_circle(10, end_angle=180).to_wire() with self.assertRaises(ValueError): Face.make_from_wires(outer, inners) with self.assertRaises(ValueError): Face.make_from_wires(Wire.make_circle(10, Plane.XZ), inners) outer = Wire.make_circle(10) inners = [ Wire.make_circle(1).locate(Location((-2, 2, 0))), Edge.make_circle(1, end_angle=180).to_wire().locate(Location((2, 2, 0))), ] with self.assertRaises(ValueError): Face.make_from_wires(outer, inners) def test_sew_faces(self): patches = [ Face.make_rect(1, 1, Plane((x, y, z))) for x in range(2) for y in range(2) for z in range(3) ] random.shuffle(patches) sheets = Face.sew_faces(patches) self.assertEqual(len(sheets), 3) self.assertEqual(len(sheets[0]), 4) self.assertTrue(isinstance(sheets[0][0], Face)) def test_surface_from_array_of_points(self): pnts = [ [ Vector(x, y, math.cos(math.pi * x / 10) + math.sin(math.pi * y / 10)) for x in range(11) ] for y in range(11) ] surface = Face.make_surface_from_array_of_points(pnts) bbox = surface.bounding_box() self.assertVectorAlmostEquals(bbox.min, (0, 0, -1), 3) self.assertVectorAlmostEquals(bbox.max, (10, 10, 2), 2) def test_thicken(self): pnts = [ [ Vector(x, y, math.cos(math.pi * x / 10) + math.sin(math.pi * y / 10)) for x in range(11) ] for y in range(11) ] surface = Face.make_surface_from_array_of_points(pnts) solid = surface.thicken(1) self.assertAlmostEqual(solid.volume, 101.59, 2) square = Face.make_rect(10, 10) bbox = square.thicken(1, normal_override=(0, 0, -1)).bounding_box() self.assertVectorAlmostEquals(bbox.min, (-5, -5, -1), 5) self.assertVectorAlmostEquals(bbox.max, (5, 5, 0), 5) def test_make_holes(self): radius = 10 circumference = 2 * math.pi * radius hex_diagonal = 4 * (circumference / 10) / 3 cylinder = Solid.make_cylinder(radius, hex_diagonal * 5) cylinder_wall: Face = cylinder.faces().filter_by(GeomType.PLANE, reverse=True)[ 0 ] with BuildSketch(Plane.XZ.offset(radius)) as hex: with Locations((0, hex_diagonal)): RegularPolygon( hex_diagonal * 0.4, 6, align=(Align.CENTER, Align.CENTER) ) hex_wire_vertical: Wire = hex.sketch.faces()[0].outer_wire() projected_wire: Wire = hex_wire_vertical.project_to_shape( target_object=cylinder, center=(0, 0, hex_wire_vertical.center().Z) )[0] projected_wires = [ projected_wire.rotate(Axis.Z, -90 + i * 360 / 10).translate( (0, 0, (j + (i % 2) / 2) * hex_diagonal) ) for i in range(5) for j in range(4 - i % 2) ] cylinder_walls_with_holes = cylinder_wall.make_holes(projected_wires) self.assertTrue(cylinder_walls_with_holes.is_valid()) self.assertLess(cylinder_walls_with_holes.area, cylinder_wall.area) def test_is_inside(self): square = Face.make_rect(10, 10) self.assertTrue(square.is_inside((1, 1))) self.assertFalse(square.is_inside((20, 1))) def test_import_stl(self): torus = Solid.make_torus(10, 1) torus.export_stl("test_torus.stl") imported_torus = import_stl("test_torus.stl") # The torus from stl is tessellated therefore the areas will only be close self.assertAlmostEqual(imported_torus.area, torus.area, 0) os.remove("test_torus.stl") def test_is_coplanar(self): square = Face.make_rect(1, 1, plane=Plane.XZ) self.assertTrue(square.is_coplanar(Plane.XZ)) self.assertFalse(square.is_coplanar(Plane.XY)) surface: Face = Solid.make_sphere(1).faces()[0] self.assertFalse(surface.is_coplanar(Plane.XY)) class TestFunctions(unittest.TestCase): def test_edges_to_wires(self): square_edges = Face.make_rect(1, 1).edges() rectangle_edges = Face.make_rect(2, 1, Plane((5, 0))).edges() wires = edges_to_wires(square_edges + rectangle_edges) self.assertEqual(len(wires), 2) self.assertAlmostEqual(wires[0].length, 4, 5) self.assertAlmostEqual(wires[1].length, 6, 5) def test_polar(self): pnt = polar(1, 30) self.assertAlmostEqual(pnt[0], math.sqrt(3) / 2, 5) self.assertAlmostEqual(pnt[1], 0.5, 5) class TestImportExport(unittest.TestCase): def test_import_export(self): original_box = Solid.make_box(1, 1, 1) original_box.export_step("test_box.step") step_box = import_step("test_box.step") self.assertTrue(step_box.is_valid()) self.assertAlmostEqual(step_box.volume, 1, 5) step_box.export_brep("test_box.brep") brep_box = import_brep("test_box.brep") self.assertTrue(brep_box.is_valid()) self.assertAlmostEqual(brep_box.volume, 1, 5) os.remove("test_box.step") os.remove("test_box.brep") with self.assertRaises(ValueError): step_box = import_step("test_box.step") class TestJoints(DirectApiTestCase): def test_rigid_joint(self): base = Solid.make_box(1, 1, 1) j1 = RigidJoint("top", base, Location(Vector(0.5, 0.5, 1))) fixed_top = Solid.make_box(1, 1, 1) j2 = RigidJoint("bottom", fixed_top, Location((0.5, 0.5, 0))) j1.connect_to(j2) bbox = fixed_top.bounding_box() self.assertVectorAlmostEquals(bbox.min, (0, 0, 1), 5) self.assertVectorAlmostEquals(bbox.max, (1, 1, 2), 5) self.assertVectorAlmostEquals(j2.symbol.location.position, (0.5, 0.5, 1), 6) self.assertVectorAlmostEquals(j2.symbol.location.orientation, (0, 0, 0), 6) def test_revolute_joint_with_angle_reference(self): revolute_base = Solid.make_cylinder(1, 1) j1 = RevoluteJoint( label="top", to_part=revolute_base, axis=Axis((0, 0, 1), (0, 0, 1)), angle_reference=(1, 0, 0), angular_range=(0, 180), ) fixed_top = Solid.make_box(1, 0.5, 1) j2 = RigidJoint("bottom", fixed_top, Location((0.5, 0.25, 0))) j1.connect_to(j2, 90) bbox = fixed_top.bounding_box() self.assertVectorAlmostEquals(bbox.min, (-0.25, -0.5, 1), 5) self.assertVectorAlmostEquals(bbox.max, (0.25, 0.5, 2), 5) self.assertVectorAlmostEquals(j2.symbol.location.position, (0, 0, 1), 6) self.assertVectorAlmostEquals(j2.symbol.location.orientation, (0, 0, 90), 6) self.assertEqual(len(j1.symbol.edges()), 2) def test_revolute_joint_without_angle_reference(self): revolute_base = Solid.make_cylinder(1, 1) j1 = RevoluteJoint( label="top", to_part=revolute_base, axis=Axis((0, 0, 1), (0, 0, 1)), ) self.assertVectorAlmostEquals(j1.angle_reference, (1, 0, 0), 5) def test_revolute_joint_error_bad_angle_reference(self): """Test that the angle_reference must be normal to the axis""" revolute_base = Solid.make_cylinder(1, 1) with self.assertRaises(ValueError): RevoluteJoint( "top", revolute_base, axis=Axis((0, 0, 1), (0, 0, 1)), angle_reference=(1, 0, 1), ) def test_revolute_joint_error_bad_angle(self): """Test that the joint angle is within bounds""" revolute_base = Solid.make_cylinder(1, 1) j1 = RevoluteJoint("top", revolute_base, Axis.Z, angular_range=(0, 180)) fixed_top = Solid.make_box(1, 0.5, 1) j2 = RigidJoint("bottom", fixed_top, Location((0.5, 0.25, 0))) with self.assertRaises(ValueError): j1.connect_to(j2, 270) def test_revolute_joint_error_bad_joint_type(self): """Test that the joint angle is within bounds""" revolute_base = Solid.make_cylinder(1, 1) j1 = RevoluteJoint("top", revolute_base, Axis.Z, (0, 180)) fixed_top = Solid.make_box(1, 0.5, 1) j2 = RevoluteJoint("bottom", fixed_top, Axis.Z, (0, 180)) with self.assertRaises(TypeError): j1.connect_to(j2, 0) def test_linear_rigid_joint(self): base = Solid.make_box(1, 1, 1) j1 = LinearJoint( "top", to_part=base, axis=Axis((0, 0.5, 1), (1, 0, 0)), linear_range=(0, 1) ) fixed_top = Solid.make_box(1, 1, 1) j2 = RigidJoint("bottom", fixed_top, Location((0.5, 0.5, 0))) j1.connect_to(j2, 0.25) bbox = fixed_top.bounding_box() self.assertVectorAlmostEquals(bbox.min, (-0.25, 0, 1), 5) self.assertVectorAlmostEquals(bbox.max, (0.75, 1, 2), 5) self.assertVectorAlmostEquals(j2.symbol.location.position, (0.25, 0.5, 1), 6) self.assertVectorAlmostEquals(j2.symbol.location.orientation, (0, 0, 0), 6) def test_linear_revolute_joint(self): linear_base = Solid.make_box(1, 1, 1) j1 = LinearJoint( label="top", to_part=linear_base, axis=Axis((0, 0.5, 1), (1, 0, 0)), linear_range=(0, 1), ) revolute_top = Solid.make_box(1, 0.5, 1).locate(Location((-0.5, -0.25, 0))) j2 = RevoluteJoint( label="top", to_part=revolute_top, axis=Axis((0, 0, 0), (0, 0, 1)), angle_reference=(1, 0, 0), angular_range=(0, 180), ) j1.connect_to(j2, position=0.25, angle=90) bbox = revolute_top.bounding_box() self.assertVectorAlmostEquals(bbox.min, (0, 0, 1), 5) self.assertVectorAlmostEquals(bbox.max, (0.5, 1, 2), 5) self.assertVectorAlmostEquals(j2.symbol.location.position, (0.25, 0.5, 1), 6) self.assertVectorAlmostEquals(j2.symbol.location.orientation, (0, 0, 90), 6) self.assertEqual(len(j1.symbol.edges()), 2) # Test invalid position with self.assertRaises(ValueError): j1.connect_to(j2, position=5, angle=90) # Test invalid angle with self.assertRaises(ValueError): j1.connect_to(j2, position=0.5, angle=270) # Test invalid joint with self.assertRaises(TypeError): j1.connect_to(Solid.make_box(1, 1, 1), position=0.5, angle=90) def test_cylindrical_joint(self): cylindrical_base = ( Solid.make_box(1, 1, 1) .locate(Location((-0.5, -0.5, 0))) .cut(Solid.make_cylinder(0.3, 1)) ) j1 = CylindricalJoint( "base", cylindrical_base, Axis((0, 0, 1), (0, 0, -1)), angle_reference=(1, 0, 0), linear_range=(0, 1), angular_range=(0, 90), ) dowel = Solid.make_cylinder(0.3, 1).cut( Solid.make_box(1, 1, 1).locate(Location((-0.5, 0, 0))) ) j2 = RigidJoint("bottom", dowel, Location((0, 0, 0), (0, 0, 0))) j1.connect_to(j2, 0.25, 90) dowel_bbox = dowel.bounding_box() self.assertVectorAlmostEquals(dowel_bbox.min, (0, -0.3, -0.25), 5) self.assertVectorAlmostEquals(dowel_bbox.max, (0.3, 0.3, 0.75), 5) self.assertVectorAlmostEquals(j1.symbol.location.position, (0, 0, 1), 6) self.assertVectorAlmostEquals( j1.symbol.location.orientation, (-180, 0, -180), 6 ) self.assertEqual(len(j1.symbol.edges()), 2) # Test invalid position with self.assertRaises(ValueError): j1.connect_to(j2, position=5, angle=90) # Test invalid angle with self.assertRaises(ValueError): j1.connect_to(j2, position=0.5, angle=270) # Test invalid joint with self.assertRaises(TypeError): j1.connect_to(Solid.make_box(1, 1, 1), position=0.5, angle=90) def test_cylindrical_joint_error_bad_angle_reference(self): """Test that the angle_reference must be normal to the axis""" with self.assertRaises(ValueError): CylindricalJoint( "base", Solid.make_box(1, 1, 1), Axis((0, 0, 1), (0, 0, -1)), angle_reference=(1, 0, 1), linear_range=(0, 1), angular_range=(0, 90), ) def test_cylindrical_joint_error_bad_position_and_angle(self): """Test that the joint angle is within bounds""" j1 = CylindricalJoint( "base", Solid.make_box(1, 1, 1), Axis((0, 0, 1), (0, 0, -1)), linear_range=(0, 1), angular_range=(0, 90), ) j2 = RigidJoint("bottom", Solid.make_cylinder(1, 1), Location((0.5, 0.25, 0))) with self.assertRaises(ValueError): j1.connect_to(j2, position=0.5, angle=270) with self.assertRaises(ValueError): j1.connect_to(j2, position=4, angle=30) def test_ball_joint(self): socket_base = Solid.make_box(1, 1, 1).cut( Solid.make_sphere(0.3, Plane((0.5, 0.5, 1))) ) j1 = BallJoint( "socket", socket_base, Location((0.5, 0.5, 1)), angular_range=((-45, 45), (-45, 45), (0, 360)), ) ball_rod = Solid.make_cylinder(0.15, 2).fuse( Solid.make_sphere(0.3).locate(Location((0, 0, 2))) ) j2 = RigidJoint("ball", ball_rod, Location((0, 0, 2), (180, 0, 0))) j1.connect_to(j2, (45, 45, 0)) self.assertVectorAlmostEquals( ball_rod.faces().filter_by(GeomType.PLANE)[0].center(CenterOf.GEOMETRY), (1.914213562373095, -0.5, 2), 5, ) self.assertVectorAlmostEquals(j1.symbol.location.position, (0.5, 0.5, 1), 6) self.assertVectorAlmostEquals(j1.symbol.location.orientation, (0, 0, 0), 6) with self.assertRaises(ValueError): j1.connect_to(j2, (90, 45, 0)) # Test invalid joint with self.assertRaises(TypeError): j1.connect_to(Solid.make_box(1, 1, 1), (0, 0, 0)) class TestLocation(DirectApiTestCase): def test_location(self): loc0 = Location() T = loc0.wrapped.Transformation().TranslationPart() self.assertTupleAlmostEquals((T.X(), T.Y(), T.Z()), (0, 0, 0), 6) angle = loc0.wrapped.Transformation().GetRotation().GetRotationAngle() * RAD2DEG self.assertAlmostEqual(0, angle) # Tuple loc0 = Location((0, 0, 1)) T = loc0.wrapped.Transformation().TranslationPart() self.assertTupleAlmostEquals((T.X(), T.Y(), T.Z()), (0, 0, 1), 6) # Vector loc1 = Location(Vector(0, 0, 1)) T = loc1.wrapped.Transformation().TranslationPart() self.assertTupleAlmostEquals((T.X(), T.Y(), T.Z()), (0, 0, 1), 6) # rotation + translation loc2 = Location(Vector(0, 0, 1), Vector(0, 0, 1), 45) angle = loc2.wrapped.Transformation().GetRotation().GetRotationAngle() * RAD2DEG self.assertAlmostEqual(45, angle) # gp_Trsf T = gp_Trsf() T.SetTranslation(gp_Vec(0, 0, 1)) loc3 = Location(T) self.assertEqual( loc1.wrapped.Transformation().TranslationPart().Z(), loc3.wrapped.Transformation().TranslationPart().Z(), ) # Test creation from the OCP.gp.gp_Trsf object loc4 = Location(gp_Trsf()) self.assertTupleAlmostEquals(loc4.to_tuple()[0], (0, 0, 0), 7) self.assertTupleAlmostEquals(loc4.to_tuple()[1], (0, 0, 0), 7) # Test creation from Plane and Vector loc4 = Location(Plane.XY, (0, 0, 1)) self.assertTupleAlmostEquals(loc4.to_tuple()[0], (0, 0, 1), 7) self.assertTupleAlmostEquals(loc4.to_tuple()[1], (0, 0, 0), 7) # Test composition loc4 = Location((0, 0, 0), Vector(0, 0, 1), 15) loc5 = loc1 * loc4 loc6 = loc4 * loc4 loc7 = loc4**2 T = loc5.wrapped.Transformation().TranslationPart() self.assertTupleAlmostEquals((T.X(), T.Y(), T.Z()), (0, 0, 1), 6) angle5 = ( loc5.wrapped.Transformation().GetRotation().GetRotationAngle() * RAD2DEG ) self.assertAlmostEqual(15, angle5) angle6 = ( loc6.wrapped.Transformation().GetRotation().GetRotationAngle() * RAD2DEG ) self.assertAlmostEqual(30, angle6) angle7 = ( loc7.wrapped.Transformation().GetRotation().GetRotationAngle() * RAD2DEG ) self.assertAlmostEqual(30, angle7) # Test error handling on creation with self.assertRaises(TypeError): Location([0, 0, 1]) with self.assertRaises(TypeError): Location("xy_plane") # Test that the computed rotation matrix and intrinsic euler angles return the same about_x = uniform(-2 * math.pi, 2 * math.pi) about_y = uniform(-2 * math.pi, 2 * math.pi) about_z = uniform(-2 * math.pi, 2 * math.pi) rot_x = gp_Trsf() rot_x.SetRotation(gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(1, 0, 0)), about_x) rot_y = gp_Trsf() rot_y.SetRotation(gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 1, 0)), about_y) rot_z = gp_Trsf() rot_z.SetRotation(gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1)), about_z) loc1 = Location(rot_x * rot_y * rot_z) q = gp_Quaternion() q.SetEulerAngles( gp_EulerSequence.gp_Intrinsic_XYZ, about_x, about_y, about_z, ) t = gp_Trsf() t.SetRotationPart(q) loc2 = Location(t) self.assertTupleAlmostEquals(loc1.to_tuple()[0], loc2.to_tuple()[0], 6) self.assertTupleAlmostEquals(loc1.to_tuple()[1], loc2.to_tuple()[1], 6) loc1 = Location((1, 2), 34) self.assertTupleAlmostEquals(loc1.to_tuple()[0], (1, 2, 0), 6) self.assertTupleAlmostEquals(loc1.to_tuple()[1], (0, 0, 34), 6) rot_angles = (-115.00, 35.00, -135.00) loc2 = Location((1, 2, 3), rot_angles) self.assertTupleAlmostEquals(loc2.to_tuple()[0], (1, 2, 3), 6) self.assertTupleAlmostEquals(loc2.to_tuple()[1], rot_angles, 6) loc3 = Location(loc2) self.assertTupleAlmostEquals(loc3.to_tuple()[0], (1, 2, 3), 6) self.assertTupleAlmostEquals(loc3.to_tuple()[1], rot_angles, 6) def test_location_repr_and_str(self): self.assertEqual( repr(Location()), "(p=(0.00, 0.00, 0.00), o=(-0.00, 0.00, -0.00))" ) self.assertEqual( str(Location()), "Location: (position=(0.00, 0.00, 0.00), orientation=(-0.00, 0.00, -0.00))", ) loc = Location((1, 2, 3), (33, 45, 67)) self.assertEqual( str(loc), "Location: (position=(1.00, 2.00, 3.00), orientation=(33.00, 45.00, 67.00))", ) def test_location_inverted(self): loc = Location(Plane.XZ) self.assertVectorAlmostEquals(loc.inverse().orientation, (-90, 0, 0), 6) def test_set_position(self): loc = Location(Plane.XZ) loc.position = (1, 2, 3) self.assertVectorAlmostEquals(loc.position, (1, 2, 3), 6) self.assertVectorAlmostEquals(loc.orientation, (90, 0, 0), 6) def test_set_orientation(self): loc = Location((1, 2, 3), (90, 0, 0)) loc.orientation = (-90, 0, 0) self.assertVectorAlmostEquals(loc.position, (1, 2, 3), 6) self.assertVectorAlmostEquals(loc.orientation, (-90, 0, 0), 6) def test_copy(self): loc1 = Location((1, 2, 3), (90, 45, 22.5)) loc2 = copy.copy(loc1) loc3 = copy.deepcopy(loc1) self.assertVectorAlmostEquals(loc1.position, loc2.position.to_tuple(), 6) self.assertVectorAlmostEquals(loc1.orientation, loc2.orientation.to_tuple(), 6) self.assertVectorAlmostEquals(loc1.position, loc3.position.to_tuple(), 6) self.assertVectorAlmostEquals(loc1.orientation, loc3.orientation.to_tuple(), 6) def test_to_axis(self): axis = Location((1, 2, 3), (-90, 0, 0)).to_axis() self.assertVectorAlmostEquals(axis.position, (1, 2, 3), 6) self.assertVectorAlmostEquals(axis.direction, (0, 1, 0), 6) class TestMatrix(DirectApiTestCase): def test_matrix_creation_and_access(self): def matrix_vals(m): return [[m[r, c] for c in range(4)] for r in range(4)] # default constructor creates a 4x4 identity matrix m = Matrix() identity = [ [1.0, 0.0, 0.0, 0.0], [0.0, 1.0, 0.0, 0.0], [0.0, 0.0, 1.0, 0.0], [0.0, 0.0, 0.0, 1.0], ] self.assertEqual(identity, matrix_vals(m)) vals4x4 = [ [1.0, 0.0, 0.0, 1.0], [0.0, 1.0, 0.0, 2.0], [0.0, 0.0, 1.0, 3.0], [0.0, 0.0, 0.0, 1.0], ] vals4x4_tuple = tuple(tuple(r) for r in vals4x4) # test constructor with 16-value input m = Matrix(vals4x4) self.assertEqual(vals4x4, matrix_vals(m)) m = Matrix(vals4x4_tuple) self.assertEqual(vals4x4, matrix_vals(m)) # test constructor with 12-value input (the last 4 are an implied # [0,0,0,1]) m = Matrix(vals4x4[:3]) self.assertEqual(vals4x4, matrix_vals(m)) m = Matrix(vals4x4_tuple[:3]) self.assertEqual(vals4x4, matrix_vals(m)) # Test 16-value input with invalid values for the last 4 invalid = [ [1.0, 0.0, 0.0, 1.0], [0.0, 1.0, 0.0, 2.0], [0.0, 0.0, 1.0, 3.0], [1.0, 2.0, 3.0, 4.0], ] with self.assertRaises(ValueError): Matrix(invalid) # Test input with invalid type with self.assertRaises(TypeError): Matrix("invalid") # Test input with invalid size / nested types with self.assertRaises(TypeError): Matrix([[1, 2, 3, 4], [1, 2, 3], [1, 2, 3, 4]]) with self.assertRaises(TypeError): Matrix([1, 2, 3]) # Invalid sub-type with self.assertRaises(TypeError): Matrix([[1, 2, 3, 4], "abc", [1, 2, 3, 4]]) # test out-of-bounds access m = Matrix() with self.assertRaises(IndexError): m[0, 4] with self.assertRaises(IndexError): m[4, 0] with self.assertRaises(IndexError): m["ab"] # test __repr__ methods m = Matrix(vals4x4) mRepr = "Matrix([[1.0, 0.0, 0.0, 1.0],\n [0.0, 1.0, 0.0, 2.0],\n [0.0, 0.0, 1.0, 3.0],\n [0.0, 0.0, 0.0, 1.0]])" self.assertEqual(repr(m), mRepr) self.assertEqual(str(eval(repr(m))), mRepr) def test_matrix_functionality(self): # Test rotate methods def matrix_almost_equal(m, target_matrix): for r, row in enumerate(target_matrix): for c, target_value in enumerate(row): self.assertAlmostEqual(m[r, c], target_value) root_3_over_2 = math.sqrt(3) / 2 m_rotate_x_30 = [ [1, 0, 0, 0], [0, root_3_over_2, -1 / 2, 0], [0, 1 / 2, root_3_over_2, 0], [0, 0, 0, 1], ] mx = Matrix() mx.rotate(Axis.X, 30 * DEG2RAD) matrix_almost_equal(mx, m_rotate_x_30) m_rotate_y_30 = [ [root_3_over_2, 0, 1 / 2, 0], [0, 1, 0, 0], [-1 / 2, 0, root_3_over_2, 0], [0, 0, 0, 1], ] my = Matrix() my.rotate(Axis.Y, 30 * DEG2RAD) matrix_almost_equal(my, m_rotate_y_30) m_rotate_z_30 = [ [root_3_over_2, -1 / 2, 0, 0], [1 / 2, root_3_over_2, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1], ] mz = Matrix() mz.rotate(Axis.Z, 30 * DEG2RAD) matrix_almost_equal(mz, m_rotate_z_30) # Test matrix multipy vector v = Vector(1, 0, 0) self.assertVectorAlmostEquals(mz.multiply(v), (root_3_over_2, 1 / 2, 0), 7) # Test matrix multipy matrix m_rotate_xy_30 = [ [root_3_over_2, 0, 1 / 2, 0], [1 / 4, root_3_over_2, -root_3_over_2 / 2, 0], [-root_3_over_2 / 2, 1 / 2, 3 / 4, 0], [0, 0, 0, 1], ] mxy = mx.multiply(my) matrix_almost_equal(mxy, m_rotate_xy_30) # Test matrix inverse vals4x4 = [[1, 2, 3, 4], [5, 1, 6, 7], [8, 9, 1, 10], [0, 0, 0, 1]] vals4x4_invert = [ [-53 / 144, 25 / 144, 1 / 16, -53 / 144], [43 / 144, -23 / 144, 1 / 16, -101 / 144], [37 / 144, 7 / 144, -1 / 16, -107 / 144], [0, 0, 0, 1], ] m = Matrix(vals4x4).inverse() matrix_almost_equal(m, vals4x4_invert) # Test matrix created from transfer function rot_x = gp_Trsf() θ = math.pi rot_x.SetRotation(gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(1, 0, 0)), θ) m = Matrix(rot_x) rot_x_matrix = [ [1, 0, 0, 0], [0, math.cos(θ), -math.sin(θ), 0], [0, math.sin(θ), math.cos(θ), 0], [0, 0, 0, 1], ] matrix_almost_equal(m, rot_x_matrix) # Test copy m2 = copy.copy(m) matrix_almost_equal(m2, rot_x_matrix) m3 = copy.deepcopy(m) matrix_almost_equal(m3, rot_x_matrix) class TestMixin1D(DirectApiTestCase): """Test the add in methods""" def test_position_at(self): self.assertVectorAlmostEquals( Edge.make_line((0, 0, 0), (1, 1, 1)).position_at(0.5), (0.5, 0.5, 0.5), 5, ) # Not sure what PARAMETER mode returns - but it's in the ballpark point = ( Edge.make_line((0, 0, 0), (1, 1, 1)) .position_at(0.5, position_mode=PositionMode.PARAMETER) .to_tuple() ) self.assertTrue(all([0.0 < v < 1.0 for v in point])) def test_positions(self): e = Edge.make_line((0, 0, 0), (1, 1, 1)) distances = [i / 4 for i in range(3)] pts = e.positions(distances) for i, position in enumerate(pts): self.assertVectorAlmostEquals(position, (i / 4, i / 4, i / 4), 5) def test_tangent_at(self): self.assertVectorAlmostEquals( Edge.make_circle(1, start_angle=0, end_angle=90).tangent_at(1.0), (-1, 0, 0), 5, ) tangent = ( Edge.make_circle(1, start_angle=0, end_angle=90) .tangent_at(0.0, position_mode=PositionMode.PARAMETER) .to_tuple() ) self.assertTrue(all([0.0 <= v <= 1.0 for v in tangent])) def test_normal(self): self.assertVectorAlmostEquals( Edge.make_circle( 1, Plane(origin=(0, 0, 0), z_dir=(1, 0, 0)), start_angle=0, end_angle=60 ).normal(), (1, 0, 0), 5, ) self.assertVectorAlmostEquals( Edge.make_ellipse( 1, 0.5, Plane(origin=(0, 0, 0), z_dir=(1, 1, 0)), start_angle=0, end_angle=90, ).normal(), (math.sqrt(2) / 2, math.sqrt(2) / 2, 0), 5, ) self.assertVectorAlmostEquals( Edge.make_spline( [ (1, 0), (math.sqrt(2) / 2, math.sqrt(2) / 2), (0, 1), ], tangents=((0, 1, 0), (-1, 0, 0)), ).normal(), (0, 0, 1), 5, ) with self.assertRaises(ValueError): Edge.make_line((0, 0, 0), (1, 1, 1)).normal() def test_center(self): c = Edge.make_circle(1, start_angle=0, end_angle=180) self.assertVectorAlmostEquals(c.center(), (0, 1, 0), 5) self.assertVectorAlmostEquals( c.center(CenterOf.MASS), (0, 0.6366197723675814, 0), 5, ) self.assertVectorAlmostEquals(c.center(CenterOf.BOUNDING_BOX), (0, 0.5, 0), 5) def test_location_at(self): loc = Edge.make_circle(1).location_at(0.25) self.assertVectorAlmostEquals(loc.position, (0, 1, 0), 5) self.assertVectorAlmostEquals(loc.orientation, (0, -90, -90), 5) def test_locations(self): locs = Edge.make_circle(1).locations([i / 4 for i in range(4)]) self.assertVectorAlmostEquals(locs[0].position, (1, 0, 0), 5) self.assertVectorAlmostEquals(locs[0].orientation, (-90, 0, -180), 5) self.assertVectorAlmostEquals(locs[1].position, (0, 1, 0), 5) self.assertVectorAlmostEquals(locs[1].orientation, (0, -90, -90), 5) self.assertVectorAlmostEquals(locs[2].position, (-1, 0, 0), 5) self.assertVectorAlmostEquals(locs[2].orientation, (90, 0, 0), 5) self.assertVectorAlmostEquals(locs[3].position, (0, -1, 0), 5) self.assertVectorAlmostEquals(locs[3].orientation, (0, 90, 90), 5) # def test_project(self): # target = Face.make_rect(10, 10) # source = Face.make_from_wires(Wire.make_circle(1, Plane((0, 0, 1)))) # shadow = source.project(target, direction=(0, 0, -1)) # self.assertVectorAlmostEquals(shadow.center(), (0, 0, 0), 5) # self.assertAlmostEqual(shadow.area, math.pi, 5) class TestMixin3D(DirectApiTestCase): """Test that 3D add ins""" def test_chamfer(self): box = Solid.make_box(1, 1, 1) chamfer_box = box.chamfer(0.1, 0.2, box.edges().sort_by(Axis.Z)[-1:]) self.assertAlmostEqual(chamfer_box.volume, 1 - 0.01, 5) def test_shell(self): shell_box = Solid.make_box(1, 1, 1).shell([], thickness=-0.1) self.assertAlmostEqual(shell_box.volume, 1 - 0.8**3, 5) with self.assertRaises(ValueError): Solid.make_box(1, 1, 1).shell([], thickness=0.1, kind=Kind.TANGENT) def test_is_inside(self): self.assertTrue(Solid.make_box(1, 1, 1).is_inside((0.5, 0.5, 0.5))) def test_dprism(self): # face f = Face.make_rect(0.5, 0.5) d = Solid.make_box(1, 1, 1, Plane((-0.5, -0.5, 0))).dprism( None, [f], additive=False ) self.assertTrue(d.is_valid()) self.assertAlmostEqual(d.volume, 1 - 0.5**2, 5) # face with depth f = Face.make_rect(0.5, 0.5) d = Solid.make_box(1, 1, 1, Plane((-0.5, -0.5, 0))).dprism( None, [f], depth=0.5, thru_all=False, additive=False ) self.assertTrue(d.is_valid()) self.assertAlmostEqual(d.volume, 1 - 0.5**3, 5) # face until f = Face.make_rect(0.5, 0.5) limit = Face.make_rect(1, 1, Plane((0, 0, 0.5))) d = Solid.make_box(1, 1, 1, Plane((-0.5, -0.5, 0))).dprism( None, [f], up_to_face=limit, thru_all=False, additive=False ) self.assertTrue(d.is_valid()) self.assertAlmostEqual(d.volume, 1 - 0.5**3, 5) # wire w = Face.make_rect(0.5, 0.5).outer_wire() d = Solid.make_box(1, 1, 1, Plane((-0.5, -0.5, 0))).dprism( None, [w], additive=False ) self.assertTrue(d.is_valid()) self.assertAlmostEqual(d.volume, 1 - 0.5**2, 5) def test_center(self): with self.assertRaises(ValueError): Solid.make_box(1, 1, 1).center(CenterOf.GEOMETRY) self.assertVectorAlmostEquals( Solid.make_box(1, 1, 1).center(CenterOf.BOUNDING_BOX), (0.5, 0.5, 0.5), 5, ) class TestPlane(DirectApiTestCase): """Plane with class properties""" def test_class_properties(self): """Validate Name xDir yDir zDir =========== ======= ======= ====== XY +x +y +z YZ +y +z +x ZX +z +x +y XZ +x +z -y YX +y +x -z ZY +z +y -x front +x +y +z back -x +y -z left +z +y -x right -z +y +x top +x -z +y bottom +x +z -y """ planes = [ (Plane.XY, (1, 0, 0), (0, 0, 1)), (Plane.YZ, (0, 1, 0), (1, 0, 0)), (Plane.ZX, (0, 0, 1), (0, 1, 0)), (Plane.XZ, (1, 0, 0), (0, -1, 0)), (Plane.YX, (0, 1, 0), (0, 0, -1)), (Plane.ZY, (0, 0, 1), (-1, 0, 0)), (Plane.front, (1, 0, 0), (0, 0, 1)), (Plane.back, (-1, 0, 0), (0, 0, -1)), (Plane.left, (0, 0, 1), (-1, 0, 0)), (Plane.right, (0, 0, -1), (1, 0, 0)), (Plane.top, (1, 0, 0), (0, 1, 0)), (Plane.bottom, (1, 0, 0), (0, -1, 0)), ] for plane, x_dir, z_dir in planes: self.assertVectorAlmostEquals(plane.x_dir, x_dir, 5) self.assertVectorAlmostEquals(plane.z_dir, z_dir, 5) def test_plane_init(self): # from origin o = (0, 0, 0) x = (1, 0, 0) y = (0, 1, 0) z = (0, 0, 1) planes = [ Plane(o), Plane(o, x), Plane(o, x, z), Plane(o, x, z_dir=z), Plane(o, x_dir=x, z_dir=z), Plane(o, x_dir=x), Plane(o, z_dir=z), Plane(origin=o, x_dir=x, z_dir=z), Plane(origin=o, x_dir=x), Plane(origin=o, z_dir=z), ] for p in planes: self.assertVectorAlmostEquals(p.origin, o, 6) self.assertVectorAlmostEquals(p.x_dir, x, 6) self.assertVectorAlmostEquals(p.y_dir, y, 6) self.assertVectorAlmostEquals(p.z_dir, z, 6) with self.assertRaises(TypeError): Plane() with self.assertRaises(TypeError): Plane(o, z_dir=1) # rotated location around z loc = Location((0, 0, 0), (0, 0, 45)) p_from_loc = Plane(loc) p_from_named_loc = Plane(location=loc) for p in [p_from_loc, p_from_named_loc]: self.assertVectorAlmostEquals(p.origin, (0, 0, 0), 6) self.assertVectorAlmostEquals( p.x_dir, (math.sqrt(2) / 2, math.sqrt(2) / 2, 0), 6 ) self.assertVectorAlmostEquals( p.y_dir, (-math.sqrt(2) / 2, math.sqrt(2) / 2, 0), 6 ) self.assertVectorAlmostEquals(p.z_dir, (0, 0, 1), 6) self.assertVectorAlmostEquals(loc.position, p.to_location().position, 6) self.assertVectorAlmostEquals( loc.orientation, p.to_location().orientation, 6 ) # rotated location around x and origin <> (0,0,0) loc = Location((0, 2, -1), (45, 0, 0)) p = Plane(loc) self.assertVectorAlmostEquals(p.origin, (0, 2, -1), 6) self.assertVectorAlmostEquals(p.x_dir, (1, 0, 0), 6) self.assertVectorAlmostEquals( p.y_dir, (0, math.sqrt(2) / 2, math.sqrt(2) / 2), 6 ) self.assertVectorAlmostEquals( p.z_dir, (0, -math.sqrt(2) / 2, math.sqrt(2) / 2), 6 ) self.assertVectorAlmostEquals(loc.position, p.to_location().position, 6) self.assertVectorAlmostEquals(loc.orientation, p.to_location().orientation, 6) # from a face f = Face.make_rect(1, 2).located(Location((1, 2, 3), (45, 0, 45))) p_from_face = Plane(f) p_from_named_face = Plane(face=f) plane_from_gp_pln = Plane(gp_pln=p_from_face.wrapped) p_deep_copy = copy.deepcopy(p_from_face) for p in [p_from_face, p_from_named_face, plane_from_gp_pln, p_deep_copy]: self.assertVectorAlmostEquals(p.origin, (1, 2, 3), 6) self.assertVectorAlmostEquals(p.x_dir, (math.sqrt(2) / 2, 0.5, 0.5), 6) self.assertVectorAlmostEquals(p.y_dir, (-math.sqrt(2) / 2, 0.5, 0.5), 6) self.assertVectorAlmostEquals( p.z_dir, (0, -math.sqrt(2) / 2, math.sqrt(2) / 2), 6 ) self.assertVectorAlmostEquals( f.location.position, p.to_location().position, 6 ) self.assertVectorAlmostEquals( f.location.orientation, p.to_location().orientation, 6 ) # from a face with x_dir f = Face.make_rect(1, 2) x = (1, 1) y = (-1, 1) planes = [ Plane(f, x), Plane(f, x_dir=x), Plane(face=f, x_dir=x), ] for p in planes: self.assertVectorAlmostEquals(p.origin, (0, 0, 0), 6) self.assertVectorAlmostEquals(p.x_dir, Vector(x).normalized(), 6) self.assertVectorAlmostEquals(p.y_dir, Vector(y).normalized(), 6) self.assertVectorAlmostEquals(p.z_dir, (0, 0, 1), 6) with self.assertRaises(TypeError): Plane(Edge.make_line((0, 0), (0, 1))) def test_plane_neg(self): p = Plane( origin=(1, 2, 3), x_dir=Vector(1, 2, 3).normalized(), z_dir=Vector(4, 5, 6).normalized(), ) p2 = -p self.assertVectorAlmostEquals(p2.origin, p.origin, 6) self.assertVectorAlmostEquals(p2.x_dir, p.x_dir, 6) self.assertVectorAlmostEquals(p2.z_dir, -p.z_dir, 6) self.assertVectorAlmostEquals( p2.y_dir, (-p.z_dir).cross(p.x_dir).normalized(), 6 ) def test_plane_mul(self): p = Plane(origin=(1, 2, 3), x_dir=(1, 0, 0), z_dir=(0, 0, 1)) p2 = p * Location((1, 2, -1), (0, 0, 45)) self.assertVectorAlmostEquals(p2.origin, (2, 4, 2), 6) self.assertVectorAlmostEquals( p2.x_dir, (math.sqrt(2) / 2, math.sqrt(2) / 2, 0), 6 ) self.assertVectorAlmostEquals( p2.y_dir, (-math.sqrt(2) / 2, math.sqrt(2) / 2, 0), 6 ) self.assertVectorAlmostEquals(p2.z_dir, (0, 0, 1), 6) p2 = p * Location((1, 2, -1), (0, 45, 0)) self.assertVectorAlmostEquals(p2.origin, (2, 4, 2), 6) self.assertVectorAlmostEquals( p2.x_dir, (math.sqrt(2) / 2, 0, -math.sqrt(2) / 2), 6 ) self.assertVectorAlmostEquals(p2.y_dir, (0, 1, 0), 6) self.assertVectorAlmostEquals( p2.z_dir, (math.sqrt(2) / 2, 0, math.sqrt(2) / 2), 6 ) p2 = p * Location((1, 2, -1), (45, 0, 0)) self.assertVectorAlmostEquals(p2.origin, (2, 4, 2), 6) self.assertVectorAlmostEquals(p2.x_dir, (1, 0, 0), 6) self.assertVectorAlmostEquals( p2.y_dir, (0, math.sqrt(2) / 2, math.sqrt(2) / 2), 6 ) self.assertVectorAlmostEquals( p2.z_dir, (0, -math.sqrt(2) / 2, math.sqrt(2) / 2), 6 ) with self.assertRaises(TypeError): p2 * Vector(1, 1, 1) def test_plane_methods(self): # Test error checking p = Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 1, 0)) with self.assertRaises(ValueError): p.to_local_coords("box") # Test translation to local coordinates local_box = p.to_local_coords(Solid.make_box(1, 1, 1)) local_box_vertices = [(v.X, v.Y, v.Z) for v in local_box.vertices()] target_vertices = [ (0, -1, 0), (0, 0, 0), (0, -1, 1), (0, 0, 1), (1, -1, 0), (1, 0, 0), (1, -1, 1), (1, 0, 1), ] for i, target_point in enumerate(target_vertices): self.assertTupleAlmostEquals(target_point, local_box_vertices[i], 7) def test_repr(self): self.assertEqual( repr(Plane.XY), "Plane(o=(0.00, 0.00, 0.00), x=(1.00, 0.00, 0.00), z=(0.00, 0.00, 1.00))", ) def test_set_origin(self): offset_plane = Plane.XY offset_plane.set_origin2d(1, 1) self.assertVectorAlmostEquals(offset_plane.origin, (1, 1, 0), 5) def test_rotated(self): rotated_plane = Plane.XY.rotated((45, 0, 0)) self.assertVectorAlmostEquals(rotated_plane.x_dir, (1, 0, 0), 5) self.assertVectorAlmostEquals( rotated_plane.z_dir, (0, -math.sqrt(2) / 2, math.sqrt(2) / 2), 5 ) def test_invalid_plane(self): # Test plane creation error handling with self.assertRaises(ValueError): Plane(origin=(0, 0, 0), x_dir=(0, 0, 0), z_dir=(0, 1, 1)) with self.assertRaises(ValueError): Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 0)) def test_plane_equal(self): # default orientation self.assertEqual( Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), ) # moved origin self.assertEqual( Plane(origin=(2, 1, -1), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), Plane(origin=(2, 1, -1), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), ) # moved x-axis self.assertEqual( Plane(origin=(0, 0, 0), x_dir=(1, 1, 0), z_dir=(0, 0, 1)), Plane(origin=(0, 0, 0), x_dir=(1, 1, 0), z_dir=(0, 0, 1)), ) # moved z-axis self.assertEqual( Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 1, 1)), Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 1, 1)), ) def test_plane_not_equal(self): # type difference for value in [None, 0, 1, "abc"]: self.assertNotEqual( Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), value ) # origin difference self.assertNotEqual( Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), Plane(origin=(0, 0, 1), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), ) # x-axis difference self.assertNotEqual( Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), Plane(origin=(0, 0, 0), x_dir=(1, 1, 0), z_dir=(0, 0, 1)), ) # z-axis difference self.assertNotEqual( Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 0, 1)), Plane(origin=(0, 0, 0), x_dir=(1, 0, 0), z_dir=(0, 1, 1)), ) def test_to_location(self): loc = Plane(origin=(1, 2, 3), x_dir=(0, 1, 0), z_dir=(0, 0, 1)).to_location() self.assertVectorAlmostEquals(loc.position, (1, 2, 3), 5) self.assertVectorAlmostEquals(loc.orientation, (0, 0, 90), 5) class TestProjection(DirectApiTestCase): def test_flat_projection(self): sphere = Solid.make_sphere(50) projection_direction = Vector(0, -1, 0) planar_text_faces = ( Compound.make_text("Flat", 30, align=(Align.CENTER, Align.CENTER)) .rotate(Axis.X, 90) .faces() ) projected_text_faces = [ f.project_to_shape(sphere, projection_direction)[0] for f in planar_text_faces ] self.assertEqual(len(projected_text_faces), 4) # def test_conical_projection(self): # sphere = Solid.make_sphere(50) # projection_center = Vector(0, 0, 0) # planar_text_faces = ( # Compound.make_text("Conical", 25, halign=Halign.CENTER) # .rotate(Axis.X, 90) # .translate((0, -60, 0)) # .faces() # ) # projected_text_faces = [ # f.project_to_shape(sphere, center=projection_center)[0] # for f in planar_text_faces # ] # self.assertEqual(len(projected_text_faces), 8) def test_text_projection(self): sphere = Solid.make_sphere(50) arch_path = ( sphere.cut( Solid.make_cylinder( 80, 100, Plane(origin=(-50, 0, -70), z_dir=(1, 0, 0)) ) ) .edges() .sort_by(Axis.Z)[0] ) projected_text = sphere.project_faces( faces=Compound.make_text("dog", font_size=14), path=arch_path, ) self.assertEqual(len(projected_text.solids()), 0) self.assertEqual(len(projected_text.faces()), 3) # def test_error_handling(self): # sphere = Solid.make_sphere(50) # f = Face.make_rect(10, 10) # with self.assertRaises(ValueError): # f.project_to_shape(sphere, center=None, direction=None)[0] # w = Face.make_rect(10, 10).outer_wire() # with self.assertRaises(ValueError): # w.project_to_shape(sphere, center=None, direction=None)[0] def test_project_edge(self): projection = Edge.make_circle(1, Plane.XY.offset(-5)).project_to_shape( Solid.make_box(1, 1, 1), (0, 0, 1) ) self.assertVectorAlmostEquals(projection[0].position_at(1), (1, 0, 0), 5) self.assertVectorAlmostEquals(projection[0].position_at(0), (0, 1, 0), 5) self.assertVectorAlmostEquals(projection[0].arc_center, (0, 0, 0), 5) def test_to_axis(self): with self.assertRaises(ValueError): Edge.make_circle(1, end_angle=30).to_axis() class TestShape(DirectApiTestCase): """Misc Shape tests""" def test_mirror(self): box_bb = Solid.make_box(1, 1, 1).mirror(Plane.XZ).bounding_box() self.assertAlmostEqual(box_bb.min.X, 0, 5) self.assertAlmostEqual(box_bb.max.X, 1, 5) self.assertAlmostEqual(box_bb.min.Y, -1, 5) self.assertAlmostEqual(box_bb.max.Y, 0, 5) box_bb = Solid.make_box(1, 1, 1).mirror().bounding_box() self.assertAlmostEqual(box_bb.min.Z, -1, 5) self.assertAlmostEqual(box_bb.max.Z, 0, 5) def test_compute_mass(self): with self.assertRaises(NotImplementedError): Shape.compute_mass(Vertex()) def test_combined_center(self): objs = [Solid.make_box(1, 1, 1, Plane((x, 0, 0))) for x in [-2, 1]] self.assertVectorAlmostEquals( Shape.combined_center(objs, center_of=CenterOf.MASS), (0, 0.5, 0.5), 5, ) objs = [Solid.make_sphere(1, Plane((x, 0, 0))) for x in [-2, 1]] self.assertVectorAlmostEquals( Shape.combined_center(objs, center_of=CenterOf.BOUNDING_BOX), (-0.5, 0, 0), 5, ) with self.assertRaises(ValueError): Shape.combined_center(objs, center_of=CenterOf.GEOMETRY) def test_shape_type(self): self.assertEqual(Vertex().shape_type(), "Vertex") def test_scale(self): self.assertAlmostEqual(Solid.make_box(1, 1, 1).scale(2).volume, 2**3, 5) def test_fuse(self): box1 = Solid.make_box(1, 1, 1) box2 = Solid.make_box(1, 1, 1, Plane((1, 0, 0))) combined = box1.fuse(box2, glue=True) self.assertTrue(combined.is_valid()) self.assertAlmostEqual(combined.volume, 2, 5) fuzzy = box1.fuse(box2, tol=1e-6) self.assertTrue(fuzzy.is_valid()) self.assertAlmostEqual(fuzzy.volume, 2, 5) def test_faces_intersected_by_axis(self): box = Solid.make_box(1, 1, 1, Plane((0, 0, 1))) intersected_faces = box.faces_intersected_by_axis(Axis.Z) self.assertTrue(box.faces().sort_by(sort_by=Axis.Z)[0] in intersected_faces) self.assertTrue(box.faces().sort_by(sort_by=Axis.Z)[-1] in intersected_faces) def test_split(self): box = Solid.make_box(1, 1, 1, Plane((-0.5, 0, 0))) # halves = box.split(Face.make_rect(2, 2, normal=(1, 0, 0))) halves = box.split(Face.make_rect(2, 2, Plane.YZ)) self.assertEqual(len(halves.solids()), 2) def test_distance(self): sphere1 = Solid.make_sphere(1, Plane((-5, 0, 0))) sphere2 = Solid.make_sphere(1, Plane((5, 0, 0))) self.assertAlmostEqual(sphere1.distance(sphere2), 8, 5) def test_distances(self): sphere1 = Solid.make_sphere(1, Plane((-5, 0, 0))) sphere2 = Solid.make_sphere(1, Plane((5, 0, 0))) sphere3 = Solid.make_sphere(1, Plane((-5, 0, 5))) distances = [8, 3] for i, distance in enumerate(sphere1.distances(sphere2, sphere3)): self.assertAlmostEqual(distances[i], distance, 5) def test_max_fillet(self): test_solids = [Solid.make_box(10, 8, 2), Solid.make_cone(5, 3, 8)] max_values = [0.96, 3.84] for i, test_object in enumerate(test_solids): with self.subTest("solids" + str(i)): max = test_object.max_fillet(test_object.edges()) self.assertAlmostEqual(max, max_values[i], 2) with self.assertRaises(RuntimeError): test_solids[0].max_fillet( test_solids[0].edges(), tolerance=1e-6, max_iterations=1 ) with self.assertRaises(ValueError): box = Solid.make_box(1, 1, 1) box.fillet(0.75, box.edges()) # invalid_object = box.fillet(0.75, box.edges()) # invalid_object.max_fillet(invalid_object.edges()) def test_locate_bb(self): bounding_box = Solid.make_cone(1, 2, 1).bounding_box() relocated_bounding_box = Plane.XZ.from_local_coords(bounding_box) self.assertAlmostEqual(relocated_bounding_box.min.X, -2, 5) self.assertAlmostEqual(relocated_bounding_box.max.X, 2, 5) self.assertAlmostEqual(relocated_bounding_box.min.Y, 0, 5) self.assertAlmostEqual(relocated_bounding_box.max.Y, -1, 5) self.assertAlmostEqual(relocated_bounding_box.min.Z, -2, 5) self.assertAlmostEqual(relocated_bounding_box.max.Z, 2, 5) def test_is_equal(self): box = Solid.make_box(1, 1, 1) self.assertTrue(box.is_equal(box)) def test_tessellate(self): box123 = Solid.make_box(1, 2, 3) verts, triangles = box123.tessellate(1e-6) self.assertEqual(len(verts), 24) self.assertEqual(len(triangles), 12) # def test_to_vtk_poly_data(self): # from vtkmodules.vtkCommonDataModel import vtkPolyData # f = Face.make_rect(2, 2) # vtk = f.to_vtk_poly_data(normals=False) # self.assertTrue(isinstance(vtk, vtkPolyData)) # self.assertEqual(vtk.GetNumberOfPolys(), 2) # def test_repr_javascript_(self): # print(Shape._repr_javascript_(Face)) def test_transformed(self): """Validate that transformed works the same as changing location""" rotation = (uniform(0, 360), uniform(0, 360), uniform(0, 360)) offset = (uniform(0, 50), uniform(0, 50), uniform(0, 50)) shape = Solid.make_box(1, 1, 1).transformed(rotation, offset) predicted_location = Location(offset) * Rotation(*rotation) located_shape = Solid.make_box(1, 1, 1).locate(predicted_location) intersect = shape.intersect(located_shape) self.assertAlmostEqual(intersect.volume, 1, 5) def test_position_and_orientation(self): box = Solid.make_box(1, 1, 1).locate(Location((1, 2, 3), (10, 20, 30))) self.assertVectorAlmostEquals(box.position, (1, 2, 3), 5) self.assertVectorAlmostEquals(box.orientation, (10, 20, 30), 5) def test_copy(self): with self.assertWarns(DeprecationWarning): Solid.make_box(1, 1, 1).copy() def test_distance_to_with_closest_points(self): s0 = Solid.make_sphere(1).locate(Location((0, 2.1, 0))) s1 = Solid.make_sphere(1) distance, pnt0, pnt1 = s0.distance_to_with_closest_points(s1) self.assertAlmostEqual(distance, 0.1, 5) self.assertVectorAlmostEquals(pnt0, (0, 1.1, 0), 5) self.assertVectorAlmostEquals(pnt1, (0, 1, 0), 5) def test_closest_points(self): c0 = Edge.make_circle(1).locate(Location((0, 2.1, 0))) c1 = Edge.make_circle(1) closest = c0.closest_points(c1) self.assertVectorAlmostEquals(closest[0], c0.position_at(0.75).to_tuple(), 5) self.assertVectorAlmostEquals(closest[1], c1.position_at(0.25).to_tuple(), 5) def test_distance_to(self): c0 = Edge.make_circle(1).locate(Location((0, 2.1, 0))) c1 = Edge.make_circle(1) distance = c0.distance_to(c1) self.assertAlmostEqual(distance, 0.1, 5) def test_find_intersection(self): box = Solid.make_box(1, 1, 1) intersections = box.find_intersection(Axis((0.5, 0.5, 4), (0, 0, -1))) self.assertVectorAlmostEquals(intersections[0][0], (0.5, 0.5, 1), 5) self.assertVectorAlmostEquals(intersections[0][1], (0, 0, 1), 5) self.assertVectorAlmostEquals(intersections[1][0], (0.5, 0.5, 0), 5) self.assertVectorAlmostEquals(intersections[1][1], (0, 0, -1), 5) def test_clean_error(self): """Note that this test is here to alert build123d to changes in bad OCCT clean behavior with spheres or hemispheres. The extra edge in a sphere seems to be the cause of this. """ sphere = Solid.make_sphere(1) divider = Solid.make_box(0.1, 3, 3, Plane(origin=(-0.05, -1.5, -1.5))) positive_half, negative_half = [s.clean() for s in sphere.cut(divider).solids()] self.assertGreater(abs(positive_half.volume - negative_half.volume), 0, 1) class TestShapeList(DirectApiTestCase): """Test ShapeList functionality""" def test_sort_by(self): faces = Solid.make_box(1, 2, 3).faces() < SortBy.AREA self.assertAlmostEqual(faces[-1].area, 2, 5) def test_filter_by_geomtype(self): non_planar_faces = ( Solid.make_cylinder(1, 1).faces().filter_by(GeomType.PLANE, reverse=True) ) self.assertEqual(len(non_planar_faces), 1) self.assertAlmostEqual(non_planar_faces[0].area, 2 * math.pi, 5) with self.assertRaises(ValueError): Solid.make_box(1, 1, 1).faces().filter_by("True") def test_filter_by_axis(self): box = Solid.make_box(1, 1, 1) self.assertEqual(len(box.faces().filter_by(Axis.X)), 2) self.assertEqual(len(box.edges().filter_by(Axis.X)), 4) self.assertEqual(len(box.vertices().filter_by(Axis.X)), 0) def test_filter_by_callable_predicate(self): boxes = [Solid.make_box(1, 1, 1) for _ in range(3)] boxes[0].label = "A" boxes[1].label = "A" boxes[2].label = "B" shapelist = ShapeList(boxes) self.assertEqual(len(shapelist.filter_by(lambda s: s.label == "A")), 2) self.assertEqual(len(shapelist.filter_by(lambda s: s.label == "B")), 1) def test_first_last(self): vertices = ( Solid.make_box(1, 1, 1).vertices().sort_by(Axis((0, 0, 0), (1, 1, 1))) ) self.assertVectorAlmostEquals(vertices.last, (1, 1, 1), 5) self.assertVectorAlmostEquals(vertices.first, (0, 0, 0), 5) def test_group_by(self): vertices = Solid.make_box(1, 1, 1).vertices().group_by(Axis.Z) self.assertEqual(len(vertices[0]), 4) edges = Solid.make_box(1, 1, 1).edges().group_by(SortBy.LENGTH) self.assertEqual(len(edges[0]), 12) edges = ( Solid.make_cone(2, 1, 2) .edges() .filter_by(GeomType.CIRCLE) .group_by(SortBy.RADIUS) ) self.assertEqual(len(edges[0]), 1) edges = (Solid.make_cone(2, 1, 2).edges() | GeomType.CIRCLE) << SortBy.RADIUS self.assertAlmostEqual(edges[0].length, 2 * math.pi, 5) vertices = Solid.make_box(1, 1, 1).vertices().group_by(SortBy.DISTANCE) self.assertVectorAlmostEquals(vertices[-1][0], (1, 1, 1), 5) box = Solid.make_box(1, 1, 2) self.assertEqual(len(box.faces().group_by(SortBy.AREA)[0]), 2) self.assertEqual(len(box.faces().group_by(SortBy.AREA)[1]), 4) with BuildPart() as boxes: with GridLocations(10, 10, 3, 3): Box(1, 1, 1) with PolarLocations(100, 10): Box(1, 1, 2) self.assertEqual(len(boxes.solids().group_by(SortBy.VOLUME)[-1]), 10) self.assertEqual(len((boxes.solids()) << SortBy.VOLUME), 9) with self.assertRaises(ValueError): boxes.solids().group_by("AREA") def test_group_by_callable_predicate(self): boxesA = [Solid.make_box(1, 1, 1) for _ in range(3)] boxesB = [Solid.make_box(1, 1, 1) for _ in range(2)] for box in boxesA: box.label = "A" for box in boxesB: box.label = "B" boxNoLabel = Solid.make_box(1, 1, 1) shapelist = ShapeList(boxesA + boxesB + [boxNoLabel]) result = shapelist.group_by(lambda shape: shape.label) self.assertEqual([len(group) for group in result], [1, 3, 2]) def test_group_by_retrieve_groups(self): boxesA = [Solid.make_box(1, 1, 1) for _ in range(3)] boxesB = [Solid.make_box(1, 1, 1) for _ in range(2)] for box in boxesA: box.label = "A" for box in boxesB: box.label = "B" boxNoLabel = Solid.make_box(1, 1, 1) shapelist = ShapeList(boxesA + boxesB + [boxNoLabel]) result = shapelist.group_by(lambda shape: shape.label) self.assertEqual(len(result.group("")), 1) self.assertEqual(len(result.group("A")), 3) self.assertEqual(len(result.group("B")), 2) self.assertEqual(result.group(""), result[0]) self.assertEqual(result.group("A"), result[1]) self.assertEqual(result.group("B"), result[2]) self.assertEqual(result.group_for(boxesA[0]), result.group_for(boxesA[0])) self.assertNotEqual(result.group_for(boxesA[0]), result.group_for(boxesB[0])) with self.assertRaises(KeyError): result.group("C") def test_distance(self): with BuildPart() as box: Box(1, 2, 3) obj = (-0.2, 0.1, 0.5) edges = box.edges().sort_by_distance(obj) distances = [Vertex(*obj).distance_to(edge) for edge in edges] self.assertTrue( all([distances[i] >= distances[i - 1] for i in range(1, len(edges))]) ) def test_distance_reverse(self): with BuildPart() as box: Box(1, 2, 3) obj = (-0.2, 0.1, 0.5) edges = box.edges().sort_by_distance(obj, reverse=True) distances = [Vertex(*obj).distance_to(edge) for edge in edges] self.assertTrue( all([distances[i] <= distances[i - 1] for i in range(1, len(edges))]) ) def test_distance_equal(self): with BuildPart() as box: Box(1, 1, 1) self.assertEqual(len(box.edges().sort_by_distance((0, 0, 0))), 12) class TestShell(DirectApiTestCase): def test_shell_init(self): box_faces = Solid.make_box(1, 1, 1).faces() box_shell = Shell.make_shell(box_faces) self.assertTrue(box_shell.is_valid()) def test_center(self): box_faces = Solid.make_box(1, 1, 1).faces() box_shell = Shell.make_shell(box_faces) self.assertVectorAlmostEquals(box_shell.center(), (0.5, 0.5, 0.5), 5) class TestSolid(DirectApiTestCase): def test_make_solid(self): box_faces = Solid.make_box(1, 1, 1).faces() box_shell = Shell.make_shell(box_faces) box = Solid.make_solid(box_shell) self.assertAlmostEqual(box.area, 6, 5) self.assertAlmostEqual(box.volume, 1, 5) self.assertTrue(box.is_valid()) def test_extrude_with_taper(self): base = Face.make_rect(1, 1) pyramid = Solid.extrude_linear(base, normal=(0, 0, 1), taper=10) self.assertLess( pyramid.faces().sort_by(Axis.Z)[-1].area, pyramid.faces().sort_by(Axis.Z)[0].area, ) self.assertVectorAlmostEquals(pyramid.bounding_box().size, (1, 1, 1), 5) inner = Solid.extrude_linear( Face.make_rect(0.5, 0.5), normal=(0, 0, 1), taper=10 ) hollow_base = Face.make_rect(1, 1).cut(Face.make_rect(0.5, 0.5)).faces()[0] hollow_pyramid = Solid.extrude_linear(hollow_base, normal=(0, 0, 1), taper=10) self.assertAlmostEqual(hollow_pyramid.volume + inner.volume, pyramid.volume, 4) def test_extrude_linear_with_rotation(self): # Face base = Face.make_rect(1, 1) twist = Solid.extrude_linear_with_rotation( base, center=(0, 0, 0), normal=(0, 0, 1), angle=45 ) self.assertAlmostEqual(twist.volume, 1, 5) top = twist.faces().sort_by(Axis.Z)[-1].rotate(Axis.Z, 45) bottom = twist.faces().sort_by(Axis.Z)[0] self.assertAlmostEqual(top.translate((0, 0, -1)).intersect(bottom).area, 1, 5) # Wire base = Wire.make_rect(1, 1) twist = Solid.extrude_linear_with_rotation( base, center=(0, 0, 0), normal=(0, 0, 1), angle=45 ) self.assertAlmostEqual(twist.volume, 1, 5) top = twist.faces().sort_by(Axis.Z)[-1].rotate(Axis.Z, 45) bottom = twist.faces().sort_by(Axis.Z)[0] self.assertAlmostEqual(top.translate((0, 0, -1)).intersect(bottom).area, 1, 5) def test_make_loft(self): loft = Solid.make_loft( [Wire.make_rect(2, 2), Wire.make_circle(1, Plane((0, 0, 1)))] ) self.assertAlmostEqual(loft.volume, (4 + math.pi) / 2, 1) with self.assertRaises(ValueError): Solid.make_loft([Wire.make_rect(1, 1)]) def test_extrude_until(self): square = Face.make_rect(1, 1) box = Solid.make_box(4, 4, 1, Plane((-2, -2, 3))) extrusion = Solid.extrude_until(square, box, (0, 0, 1), Until.LAST) self.assertAlmostEqual(extrusion.volume, 4, 5) class TestSVG(unittest.TestCase): def test_svg_export_import(self): with BuildSketch() as square: Rectangle(1, 1) square.sketch.export_svg( "test_svg.svg", (10, -10, 10), (0, 0, 1), svg_opts={"show_axes": False} ) svg_imported = import_svg("test_svg.svg") self.assertEqual(len(svg_imported), 4) with BuildSketch() as square: Circle(1) square.sketch.export_svg( "test_svg.svg", (0, 0, 10), (0, 1, 0), svg_opts={"show_axes": True} ) svg_imported = import_svg("test_svg.svg") self.assertGreater(len(svg_imported), 1) box = Solid.make_box(1, 1, 1) box.export_svg( "test_svg.svg", (10, -10, 10), (0, 0, 1), svg_opts={"show_axes": False, "pixel_scale": 100, "stroke_width": 1}, ) svg_imported = import_svg("test_svg.svg") self.assertEqual(len(svg_imported), 16) box = Solid.make_box(1, 1, 1) box.export_svg( "test_svg.svg", (10, -10, 10), (0, 0, 1), svg_opts={ "show_axes": False, "pixel_scale": 100, "stroke_width": 1, "show_hidden": False, }, ) svg_imported = import_svg("test_svg.svg") self.assertEqual(len(svg_imported), 9) os.remove("test_svg.svg") with self.assertRaises(ValueError): import_svg("test_svg.svg") class TestVector(DirectApiTestCase): """Test the Vector methods""" def test_vector_constructors(self): v1 = Vector(1, 2, 3) v2 = Vector((1, 2, 3)) v3 = Vector(gp_Vec(1, 2, 3)) v4 = Vector([1, 2, 3]) v5 = Vector(gp_XYZ(1, 2, 3)) for v in [v1, v2, v3, v4, v5]: self.assertVectorAlmostEquals(v, (1, 2, 3), 4) v6 = Vector((1, 2)) v7 = Vector([1, 2]) v8 = Vector(1, 2) for v in [v6, v7, v8]: self.assertVectorAlmostEquals(v, (1, 2, 0), 4) v9 = Vector() self.assertVectorAlmostEquals(v9, (0, 0, 0), 4) v9.X = 1.0 v9.Y = 2.0 v9.Z = 3.0 self.assertVectorAlmostEquals(v9, (1, 2, 3), 4) with self.assertRaises(TypeError): Vector("vector") with self.assertRaises(TypeError): Vector(1, 2, 3, 4) def test_vector_rotate(self): """Validate vector rotate methods""" vector_x = Vector(1, 0, 1).rotate(Axis.X, 45) vector_y = Vector(1, 2, 1).rotate(Axis.Y, 45) vector_z = Vector(-1, -1, 3).rotate(Axis.Z, 45) self.assertVectorAlmostEquals( vector_x, (1, -math.sqrt(2) / 2, math.sqrt(2) / 2), 7 ) self.assertVectorAlmostEquals(vector_y, (math.sqrt(2), 2, 0), 7) self.assertVectorAlmostEquals(vector_z, (0, -math.sqrt(2), 3), 7) def test_get_signed_angle(self): """Verify getSignedAngle calculations with and without a provided normal""" a = math.pi / 3 v1 = Vector(1, 0, 0) v2 = Vector(math.cos(a), -math.sin(a), 0) d1 = v1.get_signed_angle(v2) d2 = v1.get_signed_angle(v2, Vector(0, 0, 1)) self.assertAlmostEqual(d1, a * 180 / math.pi) self.assertAlmostEqual(d2, -a * 180 / math.pi) def test_center(self): v = Vector(1, 1, 1) self.assertAlmostEqual(v, v.center()) def test_dot(self): v1 = Vector(2, 2, 2) v2 = Vector(1, -1, 1) self.assertEqual(2.0, v1.dot(v2)) def test_vector_add(self): result = Vector(1, 2, 0) + Vector(0, 0, 3) self.assertVectorAlmostEquals(result, (1.0, 2.0, 3.0), 3) def test_vector_operators(self): result = Vector(1, 1, 1) + Vector(2, 2, 2) self.assertEqual(Vector(3, 3, 3), result) result = Vector(1, 2, 3) - Vector(3, 2, 1) self.assertEqual(Vector(-2, 0, 2), result) result = Vector(1, 2, 3) * 2 self.assertEqual(Vector(2, 4, 6), result) result = 3 * Vector(1, 2, 3) self.assertEqual(Vector(3, 6, 9), result) result = Vector(2, 4, 6) / 2 self.assertEqual(Vector(1, 2, 3), result) self.assertEqual(Vector(-1, -1, -1), -Vector(1, 1, 1)) self.assertEqual(0, abs(Vector(0, 0, 0))) self.assertEqual(1, abs(Vector(1, 0, 0))) self.assertEqual((1 + 4 + 9) ** 0.5, abs(Vector(1, 2, 3))) def test_vector_equals(self): a = Vector(1, 2, 3) b = Vector(1, 2, 3) c = Vector(1, 2, 3.000001) self.assertEqual(a, b) self.assertEqual(a, c) def test_vector_distance(self): """ Test line distance from plane. """ v = Vector(1, 2, 3) self.assertAlmostEqual(1, v.signed_distance_from_plane(Plane.YZ)) self.assertAlmostEqual(2, v.signed_distance_from_plane(Plane.ZX)) self.assertAlmostEqual(3, v.signed_distance_from_plane(Plane.XY)) self.assertAlmostEqual(-1, v.signed_distance_from_plane(Plane.ZY)) self.assertAlmostEqual(-2, v.signed_distance_from_plane(Plane.XZ)) self.assertAlmostEqual(-3, v.signed_distance_from_plane(Plane.YX)) self.assertAlmostEqual(1, v.distance_to_plane(Plane.YZ)) self.assertAlmostEqual(2, v.distance_to_plane(Plane.ZX)) self.assertAlmostEqual(3, v.distance_to_plane(Plane.XY)) self.assertAlmostEqual(1, v.distance_to_plane(Plane.ZY)) self.assertAlmostEqual(2, v.distance_to_plane(Plane.XZ)) self.assertAlmostEqual(3, v.distance_to_plane(Plane.YX)) def test_vector_project(self): """ Test line projection and plane projection methods of Vector """ decimal_places = 9 z_dir = Vector(1, 2, 3) base = Vector(5, 7, 9) x_dir = Vector(1, 0, 0) # test passing Plane object point = Vector(10, 11, 12).project_to_plane(Plane(base, x_dir, z_dir)) self.assertVectorAlmostEquals(point, (59 / 7, 55 / 7, 51 / 7), decimal_places) # test line projection vec = Vector(10, 10, 10) line = Vector(3, 4, 5) angle = vec.get_angle(line) * DEG2RAD vecLineProjection = vec.project_to_line(line) self.assertVectorAlmostEquals( vecLineProjection.normalized(), line.normalized(), decimal_places, ) self.assertAlmostEqual( vec.length * math.cos(angle), vecLineProjection.length, decimal_places ) def test_vector_not_implemented(self): pass def test_vector_special_methods(self): v = Vector(1, 2, 3) self.assertEqual(repr(v), "Vector: (1.0, 2.0, 3.0)") self.assertEqual(str(v), "Vector: (1.0, 2.0, 3.0)") def test_vector_iter(self): self.assertEqual(sum([v for v in Vector(1, 2, 3)]), 6) def test_reverse(self): self.assertVectorAlmostEquals(Vector(1, 2, 3).reverse(), (-1, -2, -3), 7) def test_copy(self): v2 = copy.copy(Vector(1, 2, 3)) v3 = copy.deepcopy(Vector(1, 2, 3)) self.assertVectorAlmostEquals(v2, (1, 2, 3), 7) self.assertVectorAlmostEquals(v3, (1, 2, 3), 7) class VertexTests(DirectApiTestCase): """Test the extensions to the cadquery Vertex class""" def test_basic_vertex(self): v = Vertex() self.assertEqual(0, v.X) v = Vertex(1, 1, 1) self.assertEqual(1, v.X) self.assertEqual(Vector, type(v.center())) self.assertVectorAlmostEquals(Vertex(Vector(1, 2, 3)).to_vector(), (1, 2, 3), 7) self.assertVectorAlmostEquals(Vertex((4, 5, 6)).to_vector(), (4, 5, 6), 7) self.assertVectorAlmostEquals(Vertex((7,)).to_vector(), (7, 0, 0), 7) self.assertVectorAlmostEquals(Vertex((8, 9)).to_vector(), (8, 9, 0), 7) def test_vertex_add(self): test_vertex = Vertex(0, 0, 0) self.assertVectorAlmostEquals( (test_vertex + (100, -40, 10)).to_vector(), (100, -40, 10), 7 ) self.assertVectorAlmostEquals( (test_vertex + Vector(100, -40, 10)).to_vector(), (100, -40, 10), 7 ) self.assertVectorAlmostEquals( (test_vertex + Vertex(100, -40, 10)).to_vector(), (100, -40, 10), 7, ) with self.assertRaises(TypeError): test_vertex + [1, 2, 3] def test_vertex_sub(self): test_vertex = Vertex(0, 0, 0) self.assertVectorAlmostEquals( (test_vertex - (100, -40, 10)).to_vector(), (-100, 40, -10), 7 ) self.assertVectorAlmostEquals( (test_vertex - Vector(100, -40, 10)).to_vector(), (-100, 40, -10), 7 ) self.assertVectorAlmostEquals( (test_vertex - Vertex(100, -40, 10)).to_vector(), (-100, 40, -10), 7, ) with self.assertRaises(TypeError): test_vertex - [1, 2, 3] def test_vertex_str(self): self.assertEqual(str(Vertex(0, 0, 0)), "Vertex: (0.0, 0.0, 0.0)") def test_vertex_to_vector(self): self.assertIsInstance(Vertex(0, 0, 0).to_vector(), Vector) self.assertVectorAlmostEquals(Vertex(0, 0, 0).to_vector(), (0.0, 0.0, 0.0), 7) class TestWire(unittest.TestCase): def test_ellipse_arc(self): full_ellipse = Wire.make_ellipse(2, 1) half_ellipse = Wire.make_ellipse( 2, 1, start_angle=0, end_angle=180, closed=True ) self.assertAlmostEqual(full_ellipse.area / 2, half_ellipse.area, 5) def test_conical_helix(self): helix = Wire.make_helix(1, 4, 1, normal=(-1, 0, 0), angle=10, lefthand=True) self.assertAlmostEqual(helix.length, 34.102023034708374, 5) def test_stitch(self): half_ellipse1 = Wire.make_ellipse( 2, 1, start_angle=0, end_angle=180, closed=False ) half_ellipse2 = Wire.make_ellipse( 2, 1, start_angle=180, end_angle=360, closed=False ) ellipse = half_ellipse1.stitch(half_ellipse2) self.assertEqual(len(ellipse.wires()), 1) def test_fillet_2d(self): square = Wire.make_rect(1, 1) squaroid = square.fillet_2d(0.1, square.vertices()) self.assertAlmostEqual( squaroid.length, 4 * (1 - 2 * 0.1) + 2 * math.pi * 0.1, 5 ) def test_chamfer_2d(self): square = Wire.make_rect(1, 1) squaroid = square.chamfer_2d(0.1, square.vertices()) self.assertAlmostEqual( squaroid.length, 4 * (1 - 2 * 0.1 + 0.1 * math.sqrt(2)), 5 ) def test_make_convex_hull(self): # overlapping_edges = [ # Edge.make_circle(10, end_angle=60), # Edge.make_circle(10, start_angle=30, end_angle=90), # Edge.make_line((-10, 10), (10, -10)), # ] # with self.assertRaises(ValueError): # Wire.make_convex_hull(overlapping_edges) adjoining_edges = [ Edge.make_circle(10, end_angle=45), Edge.make_circle(10, start_angle=315, end_angle=360), Edge.make_line((-10, 10), (-10, -10)), ] hull_wire = Wire.make_convex_hull(adjoining_edges) self.assertAlmostEqual(Face.make_from_wires(hull_wire).area, 319.9612, 4) if __name__ == "__main__": unittest.main()