Fixing examples, PR #910

docs/tutorial_lego.rst

@@ -21,7 +21,7 @@ The dimensions of the Lego block follow. A key parameter is ``pip_count``, the l
 of the Lego blocks in pips. This parameter must be at least 2.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 29, 32-45
+    :lines: 30,31, 34-47
 
 ********************
 Step 2: Part Builder
@@ -31,7 +31,7 @@ The Lego block will be created by the ``BuildPart`` builder as it's a discrete t
 dimensional part; therefore, we'll instantiate a ``BuildPart`` with the name ``lego``.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47
+    :lines: 49
 
 **********************
 Step 3: Sketch Builder
@@ -43,7 +43,7 @@ object.  As this sketch will be part of the lego part, we'll create a sketch bui
 in the context of the part builder as follows:
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-49
+    :lines: 49-51
     :emphasize-lines: 3
 
 
@@ -59,7 +59,7 @@ of the Lego block. The following step is going to refer to this rectangle, so it
 be assigned the identifier ``perimeter``.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51
+    :lines: 49-53
     :emphasize-lines: 5
 
 Once the ``Rectangle`` object is created the sketch appears as follows:
@@ -76,7 +76,7 @@ hollowed out. This will be done with the ``Offset`` operation which is going to
 create a new object from ``perimeter``.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61
+    :lines: 49-53,58-64
     :emphasize-lines: 7-12
 
 The first parameter to ``Offset`` is the reference object. The ``amount`` is a
@@ -104,7 +104,7 @@ objects are in the scope of a location context (``GridLocations`` in this case)
 that defined multiple points, multiple rectangles are created.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61,65-69
+    :lines: 49-53,58-64,69-73
     :emphasize-lines: 13-17
 
 Here we can see that the first ``GridLocations`` creates two positions which causes
@@ -125,8 +125,8 @@ To convert the internal grid to ridges, the center needs to be removed. This wil
 with another ``Rectangle``.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61,65-69,74-78
+    :lines: 49-53,58-64,69-73,78-83
-    :emphasize-lines: 17-22
+    :emphasize-lines: 18-23
 
 The ``Rectangle`` is subtracted from the sketch to leave the ridges as follows:
 
@@ -142,8 +142,8 @@ Lego blocks use a set of internal hollow cylinders that the pips push against
 to hold two blocks together. These will be created with ``Circle``.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61,65-69,74-76,82-87
+    :lines: 49-53,58-64,69-73,78-83,88-93
-    :emphasize-lines: 21-26
+    :emphasize-lines: 24-29
 
 Here another ``GridLocations`` is used to position the centers of the circles.  Note
 that since both ``Circle`` objects are in the scope of the location context, both
@@ -162,8 +162,8 @@ Now that the sketch is complete it needs to be extruded into the three dimension
 wall object.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61,65-69,74-76,82-87,91-92
+    :lines: 49-53,58-64,69-73,78-83,88-93,98-99
-    :emphasize-lines: 27-28
+    :emphasize-lines: 30-31
 
 Note how the ``Extrude`` operation is no longer in the ``BuildSketch`` scope and has returned
 back into the ``BuildPart`` scope. This causes ``BuildSketch`` to exit and transfer the
@@ -183,8 +183,8 @@ Now that the walls are complete, the top of the block needs to be added. Althoug
 could be done with another sketch, we'll add a box to the top of the walls.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61,65-69,74-76,82-87,91-92,100-108
+    :lines: 49-53,58-64,69-73,78-83,88-93,98-99,110-118
-    :emphasize-lines: 29-37
+    :emphasize-lines: 32-40
 
 To position the top, we'll describe the top center of the lego walls with a ``Locations`` context.
 To determine the height we'll extract that from the
@@ -211,8 +211,8 @@ The final step is to add the pips to the top of the Lego block. To do this we'll
 a new workplane on top of the block where we can position the pips.
 
 .. literalinclude:: ../examples/lego.py
-    :lines: 47-51,55-61,65-69,74-76,82-87,91-92,100-108,116-124
+    :lines: 49-53,58-64,69-73,78-83,88-93,98-99,110-118,129-137
-    :emphasize-lines: 38-46
+    :emphasize-lines: 41-49
 
 In this case, the workplane is created from the top Face of the Lego block by using the
 ``faces`` method and then sorted vertically and taking the top one ``sort_by(Axis.Z)[-1]``.

examples/build123d_customizable_logo_algebra.py

@@ -41,7 +41,7 @@ l2 = Line(
     (logo_width, -font_height * 0.1),
     (logo_width, -ext_line_length - font_height * 0.1),
 )
-extension_lines = l1 + l2
+extension_lines = Curve() + (l1 + l2)
 extension_lines += Pos(*(l1 @ 0.5)) * arrow_left
 extension_lines += (Pos(*(l2 @ 0.5)) * Rot(Z=180)) * arrow_left
 extension_lines += Line(l1 @ 0.5, l1 @ 0.5 + Vector(dim_line_length, 0))

examples/build123d_logo_algebra.py

@@ -37,7 +37,7 @@ l2 = Line(
     (logo_width, -font_height * 0.1),
     (logo_width, -ext_line_length - font_height * 0.1),
 )
-extension_lines = l1 + l2
+extension_lines = Curve() + (l1 + l2)
 extension_lines += Pos(*(l1 @ 0.5)) * arrow_left
 extension_lines += (Pos(*(l2 @ 0.5)) * Rot(Z=180)) * arrow_left
 extension_lines += Line(l1 @ 0.5, l1 @ 0.5 + Vector(dim_line_length, 0))

examples/custom_sketch_objects_algebra.py

@@ -33,7 +33,7 @@ class Spade(Sketch):
         b1 = Bezier(b0 @ 1, (242, -72), (114, -168), (11, -105))
         b2 = Bezier(b1 @ 1, (31, -174), (42, -179), (53, -198))
         l0 = Line(b2 @ 1, (0, -198))
-        spade = l0 + b0 + b1 + b2
+        spade = b0 + b1 + b2 + l0
         spade += mirror(spade, Plane.YZ)
         spade = make_face(spade)
         spade = scale(spade, height / spade.bounding_box().size.Y)

examples/lego.py

@@ -26,9 +26,11 @@ license:
     See the License for the specific language governing permissions and
     limitations under the License.
 """
-from build123d import *
-from ocp_vscode import *
 
+from build123d import *
+from ocp_vscode import show_object
+
+GEN_DOCS = False
 pip_count = 6
 
 lego_unit_size = 8
@@ -49,6 +51,7 @@ with BuildPart() as lego:
     with BuildSketch() as plan:
         # Start with a Rectangle the size of the block
         perimeter = Rectangle(width=block_length, height=block_width)
+        if GEN_DOCS:
             exporter = ExportSVG(scale=6)
             exporter.add_shape(plan.sketch)
             exporter.write("assets/lego_step4.svg")
@@ -59,6 +62,7 @@ with BuildPart() as lego:
             kind=Kind.INTERSECTION,
             mode=Mode.SUBTRACT,
         )
+        if GEN_DOCS:
             exporter = ExportSVG(scale=6)
             exporter.add_shape(plan.sketch)
             exporter.write("assets/lego_step5.svg")
@@ -67,6 +71,7 @@ with BuildPart() as lego:
             Rectangle(width=block_length, height=ridge_width)
         with GridLocations(lego_unit_size, 0, pip_count, 1):
             Rectangle(width=ridge_width, height=block_width)
+        if GEN_DOCS:
             exporter = ExportSVG(scale=6)
             exporter.add_shape(plan.sketch)
             exporter.write("assets/lego_step6.svg")
@@ -76,6 +81,7 @@ with BuildPart() as lego:
             block_width - 2 * (wall_thickness + ridge_depth),
             mode=Mode.SUBTRACT,
         )
+        if GEN_DOCS:
             exporter = ExportSVG(scale=6)
             exporter.add_shape(plan.sketch)
             exporter.write("assets/lego_step7.svg")
@@ -85,15 +91,19 @@ with BuildPart() as lego:
         ):
             Circle(radius=support_outer_diameter / 2)
             Circle(radius=support_inner_diameter / 2, mode=Mode.SUBTRACT)
+        if GEN_DOCS:
             exporter = ExportSVG(scale=6)
             exporter.add_shape(plan.sketch)
             exporter.write("assets/lego_step8.svg")
     # Extrude this base sketch to the height of the walls
     extrude(amount=base_height - wall_thickness)
+    if GEN_DOCS:
         visible, hidden = lego.part.project_to_viewport((-5, -30, 50))
         exporter = ExportSVG(scale=6)
         exporter.add_layer("Visible")
-    exporter.add_layer("Hidden", line_color=(99, 99, 99), line_type=LineType.ISO_DOT)
+        exporter.add_layer(
+            "Hidden", line_color=(99, 99, 99), line_type=LineType.ISO_DOT
+        )
         exporter.add_shape(visible, layer="Visible")
         exporter.add_shape(hidden, layer="Hidden")
         exporter.write("assets/lego_step9.svg")
@@ -106,10 +116,13 @@ with BuildPart() as lego:
             height=wall_thickness,
             align=(Align.CENTER, Align.CENTER, Align.MIN),
         )
+    if GEN_DOCS:
         visible, hidden = lego.part.project_to_viewport((-5, -30, 50))
         exporter = ExportSVG(scale=6)
         exporter.add_layer("Visible")
-    exporter.add_layer("Hidden", line_color=(99, 99, 99), line_type=LineType.ISO_DOT)
+        exporter.add_layer(
+            "Hidden", line_color=(99, 99, 99), line_type=LineType.ISO_DOT
+        )
         exporter.add_shape(visible, layer="Visible")
         exporter.add_shape(hidden, layer="Hidden")
         exporter.write("assets/lego_step10.svg")
@@ -122,14 +135,17 @@ with BuildPart() as lego:
                 height=pip_height,
                 align=(Align.CENTER, Align.CENTER, Align.MIN),
             )
+    if GEN_DOCS:
         visible, hidden = lego.part.project_to_viewport((-100, -100, 50))
         exporter = ExportSVG(scale=6)
         exporter.add_layer("Visible")
-    exporter.add_layer("Hidden", line_color=(99, 99, 99), line_type=LineType.ISO_DOT)
+        exporter.add_layer(
+            "Hidden", line_color=(99, 99, 99), line_type=LineType.ISO_DOT
+        )
         exporter.add_shape(visible, layer="Visible")
         exporter.add_shape(hidden, layer="Hidden")
         exporter.write("assets/lego.svg")
 
 assert abs(lego.part.volume - 3212.187337781355) < 1e-3
 
-show_object(lego.part.wrapped, name="lego")
+show_object(lego.part, name="lego")

examples/platonic_solids.py

@@ -118,7 +118,7 @@ class PlatonicSolid(BasePartObject):
             platonic_faces.append(Face(Wire.make_polygon(corner_vertices)))
 
         # Create the solid from the Faces
-        platonic_solid = Solid.make_solid(Shell.make_shell(platonic_faces)).clean()
+        platonic_solid = Solid(Shell(platonic_faces)).clean()
 
         # By definition, all vertices are the same distance from the origin so
         # scale proportionally to this distance

examples/projection.py

@@ -37,7 +37,7 @@ projection_direction = Vector(0, 1, 0)
 
 square = Face.make_rect(20, 20, Plane.ZX.offset(-80))
 square_projected = square.project_to_shape(sphere, projection_direction)
-square_solids = Compound([f.thicken(2) for f in square_projected])
+square_solids = Compound([Solid.thicken(f, 2) for f in square_projected])
 projection_beams = [
     Solid.make_loft(
         [
@@ -75,7 +75,7 @@ text = Compound.make_text(
     font_size=15,
     align=(Align.MIN, Align.CENTER),
 )
-projected_text = sphere.project_faces(text, path=arch_path)
+projected_text = Sketch(sphere.project_faces(text, path=arch_path))
 
 # Example 1
 show_object(sphere, name="sphere_solid", options={"alpha": 0.8})

examples/projection_algebra.py

@@ -9,7 +9,7 @@ projection_direction = Vector(0, 1, 0)
 
 square = Plane.ZX.offset(-80) * Rectangle(20, 20)
 square_projected = square.faces()[0].project_to_shape(sphere, projection_direction)
-square_solids = Part() + [f.thicken(2) for f in square_projected]
+square_solids = Part() + [Solid.thicken(f, 2) for f in square_projected]
 face = square.faces()[0]
 projection_beams = loft([face, Pos(0, 160, 0) * face])
 
@@ -39,7 +39,7 @@ text = Text(
     font_size=15,
     align=(Align.MIN, Align.CENTER),
 )
-projected_text = sphere.project_faces(text.faces(), path=arch_path)
+projected_text = Sketch(sphere.project_faces(text.faces(), path=arch_path))
 
 # Example 1
 show_object(sphere, name="sphere_solid", options={"alpha": 0.8})

examples/roller_coaster_algebra.py

@@ -1,4 +1,5 @@
 from build123d import *
+from ocp_vscode import show_object
 
 powerup = Spline(
     (0, 0, 0),
@@ -10,11 +11,10 @@ powerup = Spline(
 corner = RadiusArc(powerup @ 1, (100, 60, 0), -30)
 screw = Helix(75, 150, 15, center=(75, 40, 15), direction=(-1, 0, 0))
 
-roller_coaster = powerup + corner + screw
+roller_coaster = Curve() + (powerup + corner + screw)
 roller_coaster += Spline(corner @ 1, screw @ 0, tangents=(corner % 1, screw % 0))
 roller_coaster += Spline(
     screw @ 1, (-100, 30, 10), powerup @ 0, tangents=(screw % 1, powerup % 0)
 )
 
-if "show_object" in locals():
+show_object(roller_coaster)
-    show_object(roller_coaster)

src/build123d/operations_generic.py

@@ -821,7 +821,7 @@ def project(
             elif isinstance(context, BuildLine):
                 projected_shapes.extend(projection)
             else:  # BuildPart
-                projected_shapes.append(projection[0])
+                projected_shapes.extend(projection.faces())
 
     projected_points: ShapeList[Vector] = ShapeList()
     for pnt in point_list: