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# Copyright (c) 2015 Ultimaker B.V.
# Uranium is released under the terms of the LGPLv3 or higher.
class Float:
"""Class containing helper functions for dealing with IEEE-754 floating point numbers."""
@staticmethod
def fuzzyCompare(f1: float, f2: float, tolerance: float = 1e-8) -> bool:
"""Compare two floats to check if they are equal with a tolerance value.
This method will compare two floats and check whether they are equal to
within a certain tolerance value.
:param f1: :type{float} The first value to compare.
:param f2: :type{float} The second value to compare.
:param tolerance: The amount of tolerance used to consider the two numbers "equal".
:return: True if the two numbers are considered equal, False if not.
"""
if f1 == f2:
return True
return f1 > (f2 - tolerance) and f1 < (f2 + tolerance)
@staticmethod
def clamp(f1: float, minimum: float, maximum: float) -> float:
"""Return the value clamped to a minimum and maximum value.
:param f1: :type{float} The value to clamp.
:param minimum: :type{float} The minimum value.
:param maximum: :type{float} The maximum value.
:return: :type{float} Minimum if f1 < minimum, maximum if f1 > maximum, else f1.
"""
return min(max(f1, minimum), maximum)
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