def test_from_arc():
from ezdxf.entities import Arc
spline = Spline.from_arc(Arc.new(dxfattribs={
'center': (1, 1),
'radius': 2,
'start_angle': 30, # degrees
'end_angle': 150,
'layer': 'arc',
}))
assert spline.dxf.layer == 'arc'
assert spline.dxf.degree == 2
assert len(spline.control_points) > 2
assert len(spline.weights) > 2
assert len(spline.fit_points) == 0
assert len(spline.knots) == required_knot_values(len(spline.control_points), spline.dxf.degree + 1)
def test_from_circle():
from ezdxf.entities import Circle
spline = Spline.from_arc(Circle.new(dxfattribs={
'center': (1, 1),
'radius': 2,
'layer': 'circle',
}))
assert spline.dxf.handle is None
assert spline.dxf.owner is None
assert spline.dxf.layer == 'circle'
assert spline.dxf.degree == 2
assert len(spline.control_points) > 2
assert len(spline.weights) > 2
assert len(spline.fit_points) == 0
assert len(spline.knots) == required_knot_values(len(spline.control_points), spline.dxf.degree + 1)
def test_from_ellipse():
from ezdxf.entities import Ellipse
spline = Spline.from_arc(Ellipse.new(dxfattribs={
'center': (1, 1),
'major_axis': (2, 0),
'ratio': 0.5,
'start_param': 0.5, # radians
'end_param': 3,
'layer': 'ellipse',
}))
assert spline.dxf.layer == 'ellipse'
assert spline.dxf.degree == 2
assert len(spline.control_points) > 2
assert len(spline.weights) > 2
assert len(spline.fit_points) == 0
assert len(spline.knots) == required_knot_values(len(spline.control_points), spline.dxf.degree + 1)
def test_from_arc():
from ezdxf.entities import Arc
spline = Spline.from_arc(
Arc.new(
dxfattribs={
"center": (1, 1),
"radius": 2,
"start_angle": 30, # degrees
"end_angle": 150,
"layer": "arc",
}))
assert spline.dxf.layer == "arc"
assert spline.dxf.degree == 2
assert len(spline.control_points) > 2
assert len(spline.weights) > 2
assert len(spline.fit_points) == 0
assert len(spline.knots) == required_knot_values(
len(spline.control_points), spline.dxf.degree + 1)
def test_from_ellipse():
from ezdxf.entities import Ellipse
spline = Spline.from_arc(
Ellipse.new(
dxfattribs={
"center": (1, 1),
"major_axis": (2, 0),
"ratio": 0.5,
"start_param": 0.5, # radians
"end_param": 3,
"layer": "ellipse",
}))
assert spline.dxf.layer == "ellipse"
assert spline.dxf.degree == 2
assert len(spline.control_points) > 2
assert len(spline.weights) > 2
assert len(spline.fit_points) == 0
assert len(spline.knots) == required_knot_values(
len(spline.control_points), spline.dxf.degree + 1)
def test_from_line_with_type_error():
from ezdxf.entities import Line
with pytest.raises(TypeError):
Spline.from_arc(Line.new())