36 lines
1013 B
Python
36 lines
1013 B
Python
"""Various math-related functions."""
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import math
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def weight_from_length(*, length: float, diameter: float, density: float) -> float:
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"""Calculate the weight of a piece of filament.
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Args:
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length (float): Filament length in mm
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diameter (float): Filament diameter in mm
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density (float): Density of filament material in g/cm3
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Returns:
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float: Weight in g
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"""
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volume_mm3 = length * math.pi * (diameter / 2) ** 2
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volume_cm3 = volume_mm3 / 1000
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return density * volume_cm3
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def length_from_weight(*, weight: float, diameter: float, density: float) -> float:
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"""Calculate the length of a piece of filament.
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Args:
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weight (float): Filament weight in g
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diameter (float): Filament diameter in mm
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density (float): Density of filament material in g/cm3
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Returns:
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float: Length in mm
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"""
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volume_cm3 = weight / density
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volume_mm3 = volume_cm3 * 1000
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return volume_mm3 / (math.pi * (diameter / 2) ** 2)
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