def rect(x: float, y: float, width: float, height: float) -> vp.LineCollection:
"""
Generate a rectangle.
The rectangle is defined by its top left corner (X, Y) and its width and height.
"""
return vp.LineCollection([vp.rect(x, y, width, height)])
def rect(
x: float,
y: float,
width: float,
height: float,
radii: Tuple[float, float, float, float],
quantization: float,
) -> vp.LineCollection:
"""Generate a rectangle, with optional rounded angles.
The rectangle is defined by its top left corner (X, Y) and its width and height.
Examples:
Straight-angle rectangle:
vpype rect 10cm 10cm 3cm 2cm show
Rounded-angle rectangle:
vpype rect --radii 5mm 5mm 5mm 5mm 10cm 10cm 3cm 2cm show
Rounded-angle rectangle with quantization control:
vpype rect --quantization 0.1mm --radii 5mm 5mm 5mm 5mm 10cm 10cm 3cm 2cm show
"""
return vp.LineCollection(
[vp.rect(x, y, width, height, *radii, quantization)])
def test_rect_quantization(quantization):
line = vp.rect(0, 0, 300, 400, 3, 3, 3, 3, quantization)
seg_len = np.abs(np.diff(line))
assert np.max(seg_len[seg_len < 100]) < quantization
from vsketch.fill import generate_fill
from vsketch.utils import complex_to_2d
def _simulate_pen(lc: vp.LineCollection, lw: float) -> MultiPolygon:
return unary_union(
[
LineString(complex_to_2d(line)).buffer(lw, join_style=2, mitre_limit=10.0)
for line in lc
]
)
@pytest.mark.skip(reason="this cannot work until Toblerity/Shapely#958 is fixed")
@pytest.mark.parametrize("line", [vp.circle(0, 0, 10), vp.rect(0, 0, 10, 20)])
@pytest.mark.parametrize("lw", [0.01, 0.1, 1, 10])
def test_fill(line, lw):
"""Let's use some computational geometry to ensure the fill pattern properly covers the
desired area
"""
p = Polygon(complex_to_2d(line))
fill_lc = generate_fill(line, lw)
overfill_p = _simulate_pen(fill_lc, 1.2 * lw / 2)
underfill_p = _simulate_pen(fill_lc, 0.8 * lw / 2)
assert overfill_p.contains(p)
assert p.contains(underfill_p)