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32 lines
874 B
Python
32 lines
874 B
Python
#!/usr/bin/env python
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import numpy
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class Point:
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def __init__(self, x, y):
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self.x = x
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self.y = y
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def euclideanDist(p1, p2):
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from math import sqrt
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return sqrt((p1.x-p2.x)**2 + (p1.y-p2.y)**2)
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def getMinDist(p1, precision=0.001, startX=0, endX=3):
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"""Get x of point on (x,x^2) that has minimal distance to given Point p."""
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minDist = -1
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for x in numpy.arange(startX, endX, precision):
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p2 = Point(x, x**2)
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dist = euclideanDist(p1, p2)
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if minDist == -1 or dist < minDist:
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minDist = dist
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return minDist
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"""for i in numpy.arange(0, 3, 0.01):
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minDist = getMinDist(Point(0, i))
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if abs(i-minDist) < 0.005:
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print(i, minDist)"""
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print(getMinDist(Point(0,4.25), precision=0.001, startX=0, endX=3))
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#print(euclideanDist(Point(0,5),Point(2, 2**2)))
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#print(getMinDist(5, 0.00001, 2, 3))
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