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# Copyright (c) 2019-2020, Manfred Moitzi
# License: MIT License
import math
from ezdxf.math import ConstructionBox, ConstructionLine
class TestTextBox:
def test_defaults(self):
box = ConstructionBox()
assert box.center.isclose((0, 0))
assert box.width == 1
assert box.height == 1
assert box.angle == 0
assert box[0].isclose((-0.5, -0.5))
assert box[1].isclose((+0.5, -0.5))
assert box[2].isclose((+0.5, +0.5))
assert box[3].isclose((-0.5, +0.5))
def test_init(self):
box = ConstructionBox(center=(5, 0.5), width=10, height=1, angle=0)
assert box.center == (5, 0.5)
p1, p2, p3, p4 = box.corners
assert p1.isclose((0, 0))
assert p2.isclose((10, 0))
assert p3.isclose((10, 1))
assert p4.isclose((0, 1))
def test_from_points(self):
box = ConstructionBox.from_points((2, 1), (4, 5))
assert box.center == (3, 3)
assert box.width == 2
assert box.height == 4
assert box.angle == 0
# reverse order, same result
box = ConstructionBox.from_points((4, 5), (2, 1))
assert box.center == (3, 3)
assert box.width == 2
assert box.height == 4
assert box.angle == 0
def test_init_angle_90(self):
box = ConstructionBox(center=(0.5, 5), width=10, height=1, angle=90)
assert box.center == (0.5, 5)
p1, p2, p3, p4 = box.corners
assert p1.isclose((1, 0))
assert p2.isclose((1, 10))
assert p3.isclose((0, 10))
assert p4.isclose((0, 0))
def test_set_center(self):
box = ConstructionBox()
box.center = (0.5, 0.5)
assert box.center.isclose((0.5, 0.5))
assert box[0].isclose((0, 0))
def test_set_width(self):
box = ConstructionBox()
box.width = -3
assert box.width == 3
assert box.center.isclose((0, 0))
assert box[0].isclose((-1.5, -0.5))
assert box[2].isclose((+1.5, +0.5))
def test_set_height(self):
box = ConstructionBox()
box.height = -4
assert box.height == 4
assert box.center.isclose((0, 0))
assert box[0].isclose((-0.5, -2))
assert box[2].isclose((+0.5, +2))
def test_incircle_radius(self):
box = ConstructionBox(width=3, height=7)
assert box.incircle_radius == 1.5
box = ConstructionBox(width=4, height=2)
assert box.incircle_radius == 1
def test_circum_circle_radius(self):
box = ConstructionBox(width=3, height=7)
r = math.hypot(1.5, 3.5)
assert math.isclose(box.circumcircle_radius, r)
box = ConstructionBox(width=17, height=1)
r = math.hypot(0.5, 8.5)
assert math.isclose(box.circumcircle_radius, r)
def test_set_angle(self):
box = ConstructionBox()
box.width = 3
box.angle = 90
assert box.angle == 90
assert box.center.isclose((0, 0))
assert box[0].isclose((+0.5, -1.5))
assert box[2].isclose((-0.5, +1.5))
def test_translate(self):
box = ConstructionBox()
box.translate(3, 4)
assert box.center.isclose((3, 4))
assert box[0].isclose((2.5, 3.5))
assert box[2].isclose((3.5, 4.5))
def test_expand(self):
box = ConstructionBox()
box.expand(2, 3)
assert box.width == 3
assert box.height == 4
assert box[0].isclose((-1.5, -2))
assert box[2].isclose((+1.5, +2))
def test_scale(self):
box = ConstructionBox(width=3, height=4)
box.scale(1.5, 2.5)
assert box.width == 4.5
assert box.height == 10
assert box[0].isclose((-2.25, -5))
assert box[2].isclose((+2.25, +5))
def test_intersect_0(self):
box = ConstructionBox(center=(5, 0.5), width=10, height=1, angle=0)
line = ConstructionLine((0, 2), (1, 2)) # above box
assert len(box.intersect(line)) == 0
def test_intersect_1(self):
box = ConstructionBox(center=(5, 0.5), width=10, height=1, angle=0)
line = ConstructionLine((10, 1), (11, 2)) # touch one corner
result = box.intersect(line)
assert len(result) == 1
assert result[0].isclose((10, 1))
def test_intersect_2(self):
box = ConstructionBox(center=(5, 0.5), width=10, height=1, angle=0)
line = ConstructionLine((5, -1), (5, 2))
result = box.intersect(line)
assert len(result) == 2
assert result[0].isclose((5, 0))
assert result[1].isclose((5, 1))
def test_is_inside_horiz_box(self):
box = ConstructionBox()
assert box.is_inside((0, 0)) is True
# on border is inside
assert box.is_inside((0.5, 0.5)) is True
assert box.is_inside(box[0]) is True
assert box.is_inside(box[1]) is True
assert box.is_inside(box[2]) is True
assert box.is_inside(box[3]) is True
# outside
assert box.is_inside((1, 1)) is False
assert box.is_inside((-1, -1)) is False
assert box.is_inside((-1, +1)) is False
assert box.is_inside((+1, -1)) is False
# outside but on extension lines
assert box.is_inside((1, 0.5)) is False
assert box.is_inside((-1, -0.5)) is False
assert box.is_inside((-1, 0.5)) is False
assert box.is_inside((+1, -0.5)) is False
def test_is_inside_rotated_box(self):
box = ConstructionBox(angle=67)
assert box.is_inside((0, 0)) is True
# on border is inside
assert box.is_inside(box[0]) is True
assert box.is_inside(box[1]) is True
assert box.is_inside(box[2]) is True
assert box.is_inside(box[3]) is True
# outside
assert box.is_inside((1, 1)) is False
assert box.is_inside((-1, -1)) is False
assert box.is_inside((-1, +1)) is False
assert box.is_inside((+1, -1)) is False
def test_any_corner_inside(self):
box1 = ConstructionBox()
# one touching corner
box2 = ConstructionBox(center=(1, 1))
assert box1.is_any_corner_inside(box2) is True
assert box2.is_any_corner_inside(box1) is True
# no overlapping
box2 = ConstructionBox(center=(1.01, 1.01))
assert box1.is_any_corner_inside(box2) is False
assert box2.is_any_corner_inside(box1) is False
# one point of box2 inside of box1
box2 = ConstructionBox(center=(0.5404, 0.5404), angle=45)
assert box1.is_any_corner_inside(box2) is False
assert box2.is_any_corner_inside(box1) is True
# one point of box2 inside of box1
box2 = ConstructionBox(center=(1.177, 0.5152), angle=45)
assert box2.is_any_corner_inside(box1) is True
# no overlapping
box2 = ConstructionBox(center=(1.2091, 0.4669), angle=45)
assert box2.is_any_corner_inside(box1) is False
def test_overlapping_boxes(self):
box1 = ConstructionBox()
assert box1.is_overlapping(box1) is True
box2 = ConstructionBox(width=2, height=2)
# box1 complete inside of box2
assert box1.is_overlapping(box2) is True
assert box2.is_overlapping(box1) is True
# one touching corner
box2 = ConstructionBox(center=(1, 1))
assert box1.is_overlapping(box2) is True
assert box2.is_overlapping(box1) is True
# no overlapping
box2 = ConstructionBox(center=(1.2091, 0.4669), angle=45)
assert box1.is_overlapping(box2) is False
assert box2.is_overlapping(box1) is False
# one point of box2 inside of box1
box2 = ConstructionBox(center=(0.5404, 0.5404), angle=45)
assert box1.is_overlapping(box2) is True
assert box2.is_overlapping(box1) is True
def test_overlapping_crossing_boxes(self):
box1 = ConstructionBox()
# overlapping boxes with corners inside of each other
box2 = ConstructionBox(width=0.1, height=3)
assert box1.is_any_corner_inside(box2) is False
assert box2.is_any_corner_inside(box1) is False
assert box1.is_overlapping(box2) is True
assert box2.is_overlapping(box1) is True
# center2 outside of box1
box2 = ConstructionBox(center=(0.3, 0.708), width=0.18, height=2.88)
assert box1.is_overlapping(box2) is True
assert box2.is_overlapping(box1) is True
# center2 outside of box1, no overlapping
box2 = ConstructionBox(center=(0.6427, 0.6563), width=0.18, height=2.88)
assert box1.is_overlapping(box2) is False
assert box2.is_overlapping(box1) is False
# cutting corner of box1
box2 = ConstructionBox(
center=(0.2639, 0.5721), width=0.18, height=2.88, angle=45
)
assert box1.is_overlapping(box2) is True
assert box2.is_overlapping(box1) is True
def test_issue_2020_01_30():
box = ConstructionBox((0.22499999999999978, -6.15), 1.0, 0.4, 270.0)
start = (-1.4349395363018706e-16, -7.25)
end = (-2.1084952758329149e-16, -6.15)
assert box.is_inside(start) is False
assert box.is_inside(end) is False
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