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# Copyright (c) 2023-2024, Manfred Moitzi
# License: MIT License
import pytest
import math
from ezdxf.tools.clipping_portal import ClippingRect
from ezdxf.math import Vec2
from ezdxf import npshapes
class TestClippingRect:
def test_clipping_points(self):
clipper = ClippingRect([(-1, -1), (1, 1)])
assert clipper.clip_point(Vec2(3, 3)) is None
assert clipper.clip_point(Vec2(0.5, 0.5)).isclose((0.5, 0.5)) # type: ignore
def test_clipping_lines(self):
clipper = ClippingRect([(-1, -1), (1, 1)])
cropped_segments = clipper.clip_line(Vec2(-3, 0), Vec2(3, 0))
assert len(cropped_segments) == 1
points = cropped_segments[0]
assert len(points) == 2
start, end = points
assert start.isclose((-1, 0))
assert end.isclose((1, 0))
def test_clip_polyline(self):
clipper = ClippingRect([(-2, -2), (2, 2)])
polyline = npshapes.NumpyPoints2d(Vec2.list([(0, 1), (3, 0), (0, -1)]))
polygons = clipper.clip_polygon(polyline)
assert len(polygons) == 1
assert len(polygons[0]) == 4
if __name__ == "__main__":
pytest.main([__file__])
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