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fadb92b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | import math
from shapely.geometry import Polygon
def poly_iou(poly1: Polygon, poly2: Polygon):
try:
intersection_area = poly1.intersection(poly2).area
union_area = poly1.union(poly2).area
return intersection_area / union_area
except Exception:
poly1 = poly1.buffer(1)
poly2 = poly2.buffer(1)
intersection_area = poly1.intersection(poly2).area
union_area = poly1.union(poly2).area
return intersection_area / union_area
def is_clockwise_or_not(points):
s = 0
for i in range(0, len(points) - 1):
s += points[i][0] * points[i + 1][1] - points[i][1] * points[i + 1][0]
return s > 0
def x_axis_angle(y):
# 以图像坐标系为准，(1,0)方向记为0度，逆时针绕一圈到360度
# print('-------------')
# print(y)
y_right_hand = (y[0], -y[1])
# print(y_right_hand)
x = (1, 0)
inner = x[0] * y_right_hand[0] + x[1] * y_right_hand[1]
# print(inner)
y_norm2 = (y_right_hand[0] ** 2 + y_right_hand[1] ** 2) ** 0.5
# print(y_norm2)
cosxy = inner / (y_norm2 + 1e-8)
# print(cosxy)
angle = math.acos(cosxy)
# print(angle, math.degrees(angle))
# print('-------------')
return math.degrees(angle) if y_right_hand[1] >= 0 else 360 - math.degrees(angle)
def get_quadrant(angle):
if angle[0] < angle[1]:
if 0 <= angle[0] < 90 and 0 <= angle[1] < 90:
quadrant = (angle[1] - angle[0], 0, 0, 0)
elif 0 <= angle[0] < 90 and 90 <= angle[1] < 180:
quadrant = (90 - angle[0], angle[1] - 90, 0, 0)
elif 0 <= angle[0] < 90 and 180 <= angle[1] < 270:
quadrant = (90 - angle[0], 90, angle[1] - 180, 0)
elif 0 <= angle[0] < 90 and 270 <= angle[1] < 360:
quadrant = (90 - angle[0], 90, 90, angle[1] - 270)
elif 90 <= angle[0] < 180 and 90 <= angle[1] < 180:
quadrant = (0, angle[1] - angle[0], 0, 0)
elif 90 <= angle[0] < 180 and 180 <= angle[1] < 270:
quadrant = (0, 180 - angle[0], angle[1] - 180, 0)
elif 90 <= angle[0] < 180 and 270 <= angle[1] < 360:
quadrant = (0, 180 - angle[0], 90, angle[1] - 270)
elif 180 <= angle[0] < 270 and 180 <= angle[1] < 270:
quadrant = (0, 0, angle[1] - angle[0], 0)
elif 180 <= angle[0] < 270 and 270 <= angle[1] < 360:
quadrant = (0, 0, 270 - angle[0], angle[1] - 270)
elif 270 <= angle[0] < 360 and 270 <= angle[1] < 360:
quadrant = (0, 0, 0, angle[1] - angle[0])
else:
if 0 <= angle[1] < 90 and 0 <= angle[0] < 90:
quadrant_ = (angle[0] - angle[1], 0, 0, 0)
elif 0 <= angle[1] < 90 and 90 <= angle[0] < 180:
quadrant_ = (90 - angle[1], angle[0] - 90, 0, 0)
elif 0 <= angle[1] < 90 and 180 <= angle[0] < 270:
quadrant_ = (90 - angle[1], 90, angle[0] - 180, 0)
elif 0 <= angle[1] < 90 and 270 <= angle[0] < 360:
quadrant_ = (90 - angle[1], 90, 90, angle[0] - 270)
elif 90 <= angle[1] < 180 and 90 <= angle[0] < 180:
quadrant_ = (0, angle[0] - angle[1], 0, 0)
elif 90 <= angle[1] < 180 and 180 <= angle[0] < 270:
quadrant_ = (0, 180 - angle[1], angle[0] - 180, 0)
elif 90 <= angle[1] < 180 and 270 <= angle[0] < 360:
quadrant_ = (0, 180 - angle[1], 90, angle[0] - 270)
elif 180 <= angle[1] < 270 and 180 <= angle[0] < 270:
quadrant_ = (0, 0, angle[0] - angle[1], 0)
elif 180 <= angle[1] < 270 and 270 <= angle[0] < 360:
quadrant_ = (0, 0, 270 - angle[1], angle[0] - 270)
elif 270 <= angle[1] < 360 and 270 <= angle[0] < 360:
quadrant_ = (0, 0, 0, angle[0] - angle[1])
quadrant = (90 - quadrant_[0], 90 - quadrant_[1], 90 - quadrant_[2], 90 - quadrant_[3])
return quadrant
def find_which_angle_to_counterclockwise_rotate_from(t):
if t > 270:
return 630 - t
else:
return 270 - t
def counter_degree(d):
if d >= 180:
return d - 180
else:
return d + 180
def rotate_degree_clockwise_from_counter_degree(src_degree, dest_degree):
delta = src_degree - dest_degree
return delta if delta >= 0 else 360 + delta
def rotate_degree_counterclockwise_from_counter_degree(src_degree, dest_degree):
delta = dest_degree - src_degree
return delta if delta >= 0 else 360 + delta
def poly_area(points):
s = 0
points_count = len(points)
for i in range(points_count):
point = points[i]
point2 = points[(i + 1) % points_count]
s += (point[0] - point2[0]) * (point[1] + point2[1])
return s / 2
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