def test_interpolation_for_coincident_vertices_after(self):
cp = ConstructionPolyline([(0, 0), (1, 0), (1, 0), (1, 0)])
assert cp.vertex_at(0.0).isclose((0.0, 0.0))
assert cp.vertex_at(0.1).isclose((0.1, 0.0))
assert cp.vertex_at(0.5).isclose((0.5, 0.0))
assert cp.vertex_at(0.9).isclose((0.9, 0.0))
assert cp.vertex_at(1.0).isclose((1.0, 0.0))
def test_long_polyline(self):
poly = ConstructionPolyline([(0, 0), (1, 0), (2, 0), (3, 0)])
assert poly.index_at(0.0) == 0
assert poly.index_at(0.999) == 1
assert poly.index_at(1.0) == 1
assert poly.index_at(1.001) == 2
assert poly.index_at(1.999) == 2
assert poly.index_at(2.0) == 2
assert poly.index_at(2.001) == 3
assert poly.index_at(2.999) == 3
assert poly.index_at(3.0) == 3
assert poly.index_at(3.001) == 3
def test_unit_circle_by_path(self):
from ezdxf import path
p = path.unit_circle()
cp = ConstructionPolyline(p.flattening(0.01))
assert cp.is_closed is True
assert len(cp) > 60
assert abs(cp.length - math.tau) < 0.002
def test_unit_circle(self):
from ezdxf.entities import Circle
# create unit circle
circle: Circle = Circle.new(dxfattribs={
"center": (0, 0),
"radius": 1.0
})
cp = ConstructionPolyline(circle.flattening(0.01))
assert cp.is_closed is True
assert len(cp) > 20
assert abs(cp.length - math.tau) < 0.02
def test_empty_polyline(self):
assert ConstructionPolyline([]).length == 0.0
def test_vertices_at_the_same_location(self):
cp = ConstructionPolyline([(0, 0), (0, 0), (0, 0)])
assert cp.data(0) == (0, 0, (0, 0))
assert cp.data(1) == (0, 0, (0, 0))
assert cp.data(2) == (0, 0, (0, 0))
def test_empty_polyline_raises_Value_error(self):
with pytest.raises(ValueError):
ConstructionPolyline([]).data(0)
def test_empty_polyline(self):
cp = ConstructionPolyline([])
assert len(cp) == 0
def test_polyline_with_too_few_vertices_is_not_closed(self):
assert ConstructionPolyline([(0, 0)]).is_closed is False
assert ConstructionPolyline([(0, 0), (0, 0)]).is_closed is False
def test_too_few_vertices_raises_error(self):
with pytest.raises(ValueError):
ConstructionPolyline([(0, 0)]).vertex_at(0.0)
def test_empty_polyline_raises_error(self):
with pytest.raises(ValueError):
ConstructionPolyline([]).vertex_at(0.0)
def poly2() -> ConstructionPolyline:
return ConstructionPolyline([(0, 0), (1, 0), (1, 1), (0, 1)], close=True)
def test_short_polyline(self):
poly = ConstructionPolyline([(0, 0), (1, 0)])
assert poly.index_at(0.0) == 0
assert poly.index_at(0.5) == 1
assert poly.index_at(1) == 1
def test_polyline_with_one_vertex(self, d):
assert ConstructionPolyline([(1, 1)]).index_at(d) == 0
def test_empty_polyline(self, d):
assert ConstructionPolyline([]).index_at(d) == 0
def poly1() -> ConstructionPolyline:
return ConstructionPolyline([(0, 0), (1, 0), (1, 1), (0, 1)])
def test_vertices_at_the_same_location(self):
cp = ConstructionPolyline([(0, 0), (0, 0), (0, 0)])
assert cp.length == 0.0
def test_empty_polyline_is_not_closed(self):
assert ConstructionPolyline([]).is_closed is False