66 lines
1.5 KiB
Python
66 lines
1.5 KiB
Python
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#!/usr/bin/python3
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from util.io import readvalue
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def positive_float(v):
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x = float(v)
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if(x <= 0):
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raise ValueError("{} is a non-positive float".format(v))
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return x
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class Circle(object):
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__slots__ = ["x", "y", "radius"]
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def __init__(self, x, y, radius):
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self.x = x
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self.y = y
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self.radius = radius
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def has_intersection(self, other):
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if(not isinstance(other, Circle)):
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raise TypeError("cannot calculate intersection of Circle and {}".format(type(other)))
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distance = ((self.x - other.x)**2 + (self.y - other.y)**2)**0.5
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if(distance < self.radius + other.radius):
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return True
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return False
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def __contains__(self, other):
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if(not isinstance(other, Circle)):
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raise TypeError("cannot calculate wether {} is in Circle".format(type(other)))
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distance = ((self.x - other.x)**2 + (self.y - other.y)**2)**0.5
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if(other.radius + distance < self.radius):
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return True
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return False
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@staticmethod
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def read_Circle():
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radius = readvalue("radius> ", positive_float)
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x = readvalue("x> ", float)
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y = readvalue("y> ", float)
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return Circle(x, y, radius)
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if( __name__ == "__main__"):
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print("Create Circle 1:")
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c1 = Circle.read_Circle()
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print("Create Circle 2:")
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c2 = Circle.read_Circle()
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print("\n")
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if(c1.has_intersection(c2)):
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print("The two circles have an intersection.")
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else:
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print("The two circles have no intersection.")
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if(c2 in c1):
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print("Circle 1 contains Circle 2")
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if(c1 in c2):
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print("Circle 2 contains Circle 1")
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