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Reapply "Enhanced make_face so faces can have holes. Added BoundBox.measure"
This reverts commit 607efade27.
This commit is contained in:
parent
607efade27
commit
02a8c07e0a
4 changed files with 42 additions and 10 deletions
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@ -41,7 +41,7 @@ import json
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import logging
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import warnings
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from collections.abc import Callable, Iterable, Sequence
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from math import degrees, isclose, log10, pi, radians
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from math import degrees, isclose, log10, pi, radians, prod
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from typing import TYPE_CHECKING, Any, TypeAlias, overload
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import numpy as np
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@ -1001,6 +1001,16 @@ class BoundBox:
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self.max = Vector(x_max, y_max, z_max) #: location of maximum corner
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self.size = Vector(x_max - x_min, y_max - y_min, z_max - z_min) #: overall size
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@property
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def measure(self) -> float:
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"""Return the overall Lebesgue measure of the bounding box.
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- For 1D objects: length
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- For 2D objects: area
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- For 3D objects: volume
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"""
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return prod([x for x in self.size if x > TOLERANCE])
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@property
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def diagonal(self) -> float:
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"""body diagonal length (i.e. object maximum size)"""
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@ -44,6 +44,7 @@ from build123d.topology import (
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Sketch,
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topo_explore_connected_edges,
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topo_explore_common_vertex,
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edges_to_wires,
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)
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from build123d.geometry import Plane, Vector, TOLERANCE
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from build123d.build_common import flatten_sequence, validate_inputs
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@ -200,26 +201,33 @@ def make_face(
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) -> Sketch:
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"""Sketch Operation: make_face
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Create a face from the given perimeter edges.
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Create a face from the given edges.
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Args:
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edges (Edge): sequence of perimeter edges. Defaults to all
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sketch pending edges.
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edges (Edge): sequence of edges. Defaults to all sketch pending edges.
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mode (Mode, optional): combination mode. Defaults to Mode.ADD.
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"""
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context: BuildSketch | None = BuildSketch._get_context("make_face")
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if edges is not None:
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outer_edges = flatten_sequence(edges)
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raw_edges = flatten_sequence(edges)
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elif context is not None:
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outer_edges = context.pending_edges
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raw_edges = context.pending_edges
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else:
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raise ValueError("No objects to create a face")
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if not outer_edges:
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raise ValueError("No objects to create a hull")
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validate_inputs(context, "make_face", outer_edges)
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if not raw_edges:
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raise ValueError("No objects to create a face")
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validate_inputs(context, "make_face", raw_edges)
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pending_face = Face(Wire.combine(outer_edges)[0])
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wires = list(
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edges_to_wires(raw_edges).sort_by(
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lambda w: w.bounding_box().measure, reverse=True
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)
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)
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if len(wires) > 1:
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pending_face = Face(wires[0], wires[1:])
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else:
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pending_face = Face(wires[0])
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if pending_face.normal_at().Z < 0: # flip up-side-down faces
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pending_face = -pending_face
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@ -168,6 +168,17 @@ class TestUpSideDown(unittest.TestCase):
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sketch = make_face(wire.edges())
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self.assertTrue(sketch.faces()[0].normal_at().Z > 0)
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def test_make_face_with_holes(self):
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with BuildSketch() as skt:
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with BuildLine() as perimeter:
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CenterArc((0, 0), 3, 0, 360)
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with BuildLine() as hole1:
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Polyline((-1, 1), (1, 1), (1, 2), (-1, 2), (-1, 1))
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with BuildLine() as hole2:
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Airfoil("4020")
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make_face()
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self.assertEqual(len(skt.face().inner_wires()), 2)
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class TestBuildSketchExceptions(unittest.TestCase):
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"""Test exception handling"""
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@ -43,6 +43,7 @@ class TestBoundBox(unittest.TestCase):
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# OCC uses some approximations
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self.assertAlmostEqual(bb1.size.X, 1.0, 1)
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self.assertAlmostEqual(bb1.measure, 1.0, 5)
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# Test adding to an existing bounding box
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v0 = Vertex(0, 0, 0)
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@ -50,6 +51,7 @@ class TestBoundBox(unittest.TestCase):
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bb3 = bb1.add(bb2)
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self.assertAlmostEqual(bb3.size, (2, 2, 2), 7)
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self.assertAlmostEqual(bb3.measure, 8, 5)
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bb3 = bb2.add((3, 3, 3))
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self.assertAlmostEqual(bb3.size, (3, 3, 3), 7)
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@ -61,6 +63,7 @@ class TestBoundBox(unittest.TestCase):
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bb1 = Vertex(1, 1, 0).bounding_box().add(Vertex(2, 2, 0).bounding_box())
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bb2 = Vertex(0, 0, 0).bounding_box().add(Vertex(3, 3, 0).bounding_box())
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bb3 = Vertex(0, 0, 0).bounding_box().add(Vertex(1.5, 1.5, 0).bounding_box())
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self.assertAlmostEqual(bb2.measure, 9, 5)
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# Test that bb2 contains bb1
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self.assertEqual(bb2, BoundBox.find_outside_box_2d(bb1, bb2))
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self.assertEqual(bb2, BoundBox.find_outside_box_2d(bb2, bb1))
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