def extents(entities: Iterable['DXFEntity'],
cache: Cache = None) -> BoundingBox:
""" Returns a single bounding box for all given `entities`. """
_extends = BoundingBox()
for box in multi_flat(entities, cache):
_extends.extend(box)
return _extends
def test_init_none(self):
bbox = BoundingBox()
assert bbox.is_empty is True
assert bbox.has_data is False
bbox.extend([(0, 0, 0), (10, 10, 10)])
assert bbox.size == (10, 10, 10)
assert bbox.is_empty is False
assert bbox.has_data is True
def test_nearly_vertical_parallel_lines_in_linear_trace_builder():
width = 30
trace = LinearTrace()
trace.add_station((0, 100), width, width)
trace.add_station((0, 100_000), width, width)
trace.add_station((0.001, 0), width, width)
bbox = BoundingBox()
for face in trace.faces():
bbox.extend(face)
assert bbox.extmin.y > -100
def extends(entities: Iterable['DXFEntity'],
cache: Cache = None) -> BoundingBox:
""" Returns a single bounding box for the given `entities` and their sub
entities. Good caching behavior!
"""
_extends = BoundingBox()
for box in multi_flat(entities, cache):
_extends.extend(box)
return _extends
def extents(entities: Iterable['DXFEntity'], *,
flatten: float = MAX_FLATTENING_DISTANCE,
cache: Cache = None) -> BoundingBox:
""" Returns a single bounding box for all given `entities`.
Calculate bounding boxes from flattened curves, if argument `flatten`
is not 0 (max flattening distance), else from control points.
"""
_extends = BoundingBox()
for box in multi_flat(entities, flatten=flatten, cache=cache):
_extends.extend(box)
return _extends
def extents(entities: Iterable['DXFEntity'],
*,
flatten: bool = True,
cache: Cache = None) -> BoundingBox:
""" Returns a single bounding box for all given `entities`.
Calculate bounding boxes from flattened curves, if argument `flatten` is
``True``, else from control points.
"""
_extends = BoundingBox()
for box in multi_flat(entities, flatten=flatten, cache=cache):
_extends.extend(box)
return _extends
def bbox(paths: Iterable[Path], flatten=0.01,
segments: int = 16) -> BoundingBox:
""" Returns the :class:`~ezdxf.math.BoundingBox` for the given paths.
Args:
paths: iterable of :class:`~ezdxf.path.Path` objects
flatten: value != 0 for bounding box calculation from the flattened
path and value == 0 for bounding box from the control vertices.
Default value is 0.01 as max flattening distance.
segments: minimal segment count for flattening
"""
box = BoundingBox()
for p in paths:
if flatten:
box.extend(p.flattening(distance=abs(flatten), segments=segments))
else:
box.extend(p.control_vertices())
return box
def bbox(paths: Iterable[Path],
flatten=True,
distance: float = 0.01,
segments: int = 16) -> BoundingBox:
""" Returns the :class:`~ezdxf.math.BoundingBox` for the given paths.
Args:
paths: iterable of :class:`~ezdxf.path.Path` objects
flatten: ``True`` for bounding box from the flattened path and ``False``
for bounding box from the control vertices.
distance: flattening distance, default is 0.01
segments: minimal segment count for flattening
"""
box = BoundingBox()
for p in paths:
if flatten:
box.extend(p.flattening(distance, segments=segments))
else:
box.extend(p.control_vertices())
return box
def test_extend(self):
bbox = BoundingBox([(0, 0, 0), (10, 10, 10)])
bbox.extend([(5, 5, 5)])
assert bbox.extmin == (0, 0, 0)
assert bbox.extmax == (10, 10, 10)
bbox.extend([(15, 16, 17)])
assert bbox.extmin == (0, 0, 0)
assert bbox.extmax == (15, 16, 17)
bbox.extend([(-15, -16, -17)])
assert bbox.extmin == (-15, -16, -17)
assert bbox.extmax == (15, 16, 17)
def extends_(entities_: Iterable['DXFEntity']) -> BoundingBox:
_extends = BoundingBox()
for _box in multi_recursive(entities_, cache):
_extends.extend(_box)
return _extends
def extends_(entities_: Iterable["DXFEntity"]) -> BoundingBox:
_extends = BoundingBox()
for _box in multi_recursive(entities_, flatten=flatten, cache=cache):
_extends.extend(_box)
return _extends
def test_extend_by_bbox(self):
bbox = BoundingBox([(0, 0, 0), (10, 10, 10)])
bbox2 = BoundingBox([(5, 5, 5), (15, 16, 17)])
bbox.extend(bbox2)
assert bbox.extmin == (0, 0, 0)
assert bbox.extmax == (15, 16, 17)
def test_extend_by_empty_list(self):
bbox = BoundingBox([(0, 0, 0), (10, 10, 10)])
bbox.extend([])
assert bbox.extmin == (0, 0, 0)
assert bbox.extmax == (10, 10, 10)
