224 lines
8.1 KiB
Python
224 lines
8.1 KiB
Python
from math import floor
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import sys
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from body_scales import bodyScales
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class bodyMetrics:
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def __init__(self, weight, height, age, sex, impedance):
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self.weight = weight
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self.height = height
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self.age = age
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self.sex = sex
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self.impedance = impedance
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self.scales = bodyScales(age, height, sex, weight)
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# Check for potential out of boundaries
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if self.height > 220:
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print("Height is too high (limit: >220cm) or scale is sleeping")
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sys.stderr.write('Height is over 220cm\n')
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exit()
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elif weight < 10 or weight > 200:
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print("Weight is either too low or too high (limits: <10kg and >200kg)")
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sys.stderr.write('Weight is below 10kg or above 200kg\n')
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exit()
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elif age > 99:
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print("Age is too high (limit >99 years)")
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sys.stderr.write('Age is above 99 years\n')
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exit()
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elif impedance > 3000:
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print("Impedance is above 3000 Ohm")
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sys.stderr.write('Impedance is above 3000 Ohm\n')
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exit()
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# Set the value to a boundary if it overflows
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def checkValueOverflow(self, value, minimum, maximum):
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if value < minimum:
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return minimum
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elif value > maximum:
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return maximum
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else:
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return value
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# Get LBM coefficient (with impedance)
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def getLBMCoefficient(self):
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lbm = (self.height * 9.058 / 100) * (self.height / 100)
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lbm += self.weight * 0.32 + 12.226
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lbm -= self.impedance * 0.0068
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lbm -= self.age * 0.0542
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return lbm
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# Get BMR
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def getBMR(self):
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if self.sex == 'female':
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bmr = 864.6 + self.weight * 10.2036
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bmr -= self.height * 0.39336
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bmr -= self.age * 6.204
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else:
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bmr = 877.8 + self.weight * 14.916
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bmr -= self.height * 0.726
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bmr -= self.age * 8.976
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# Capping
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if self.sex == 'female' and bmr > 2996:
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bmr = 5000
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elif self.sex == 'male' and bmr > 2322:
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bmr = 5000
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return self.checkValueOverflow(bmr, 500, 10000)
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# Get fat percentage
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def getFatPercentage(self):
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# Set a constant to remove from LBM
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if self.sex == 'female' and self.age <= 49:
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const = 9.25
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elif self.sex == 'female' and self.age > 49:
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const = 7.25
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else:
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const = 0.8
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# Calculate body fat percentage
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LBM = self.getLBMCoefficient()
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if self.sex == 'male' and self.weight < 61:
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coefficient = 0.98
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elif self.sex == 'female' and self.weight > 60:
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coefficient = 0.96
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if self.height > 160:
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coefficient *= 1.03
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elif self.sex == 'female' and self.weight < 50:
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coefficient = 1.02
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if self.height > 160:
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coefficient *= 1.03
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else:
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coefficient = 1.0
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fatPercentage = (1.0 - (((LBM - const) * coefficient) / self.weight)) * 100
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# Capping body fat percentage
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if fatPercentage > 63:
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fatPercentage = 75
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return self.checkValueOverflow(fatPercentage, 5, 75)
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# Get water percentage
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def getWaterPercentage(self):
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waterPercentage = (100 - self.getFatPercentage()) * 0.7
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if (waterPercentage <= 50):
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coefficient = 1.02
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else:
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coefficient = 0.98
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# Capping water percentage
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if waterPercentage * coefficient >= 65:
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waterPercentage = 75
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return self.checkValueOverflow(waterPercentage * coefficient, 35, 75)
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# Get bone mass
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def getBoneMass(self):
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if self.sex == 'female':
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base = 0.245691014
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else:
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base = 0.18016894
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boneMass = (base - (self.getLBMCoefficient() * 0.05158)) * -1
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if boneMass > 2.2:
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boneMass += 0.1
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else:
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boneMass -= 0.1
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# Capping boneMass
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if self.sex == 'female' and boneMass > 5.1:
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boneMass = 8
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elif self.sex == 'male' and boneMass > 5.2:
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boneMass = 8
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return self.checkValueOverflow(boneMass, 0.5 , 8)
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# Get muscle mass
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def getMuscleMass(self):
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muscleMass = self.weight - ((self.getFatPercentage() * 0.01) * self.weight) - self.getBoneMass()
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# Capping muscle mass
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if self.sex == 'female' and muscleMass >= 84:
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muscleMass = 120
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elif self.sex == 'male' and muscleMass >= 93.5:
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muscleMass = 120
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return self.checkValueOverflow(muscleMass, 10 ,120)
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# Get Visceral Fat
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def getVisceralFat(self):
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if self.sex == 'female':
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if self.weight > (13 - (self.height * 0.5)) * -1:
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subsubcalc = ((self.height * 1.45) + (self.height * 0.1158) * self.height) - 120
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subcalc = self.weight * 500 / subsubcalc
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vfal = (subcalc - 6) + (self.age * 0.07)
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else:
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subcalc = 0.691 + (self.height * -0.0024) + (self.height * -0.0024)
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vfal = (((self.height * 0.027) - (subcalc * self.weight)) * -1) + (self.age * 0.07) - self.age
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else:
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if self.height < self.weight * 1.6:
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subcalc = ((self.height * 0.4) - (self.height * (self.height * 0.0826))) * -1
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vfal = ((self.weight * 305) / (subcalc + 48)) - 2.9 + (self.age * 0.15)
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else:
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subcalc = 0.765 + self.height * -0.0015
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vfal = (((self.height * 0.143) - (self.weight * subcalc)) * -1) + (self.age * 0.15) - 5.0
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return self.checkValueOverflow(vfal, 1 ,50)
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# Get BMI
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def getBMI(self):
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return self.checkValueOverflow(self.weight/((self.height/100)*(self.height/100)), 10, 90)
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# Get ideal weight (just doing a reverse BMI, should be something better)
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def getIdealWeight(self, orig=True):
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# Uses mi fit algorithm (or holtek's one)
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if orig and self.sex == 'female':
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return (self.height - 70) * 0.6
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elif orig and self.sex == 'male':
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return (self.height - 80) * 0.7
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else:
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return self.checkValueOverflow((22*self.height)*self.height/10000, 5.5, 198)
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# Get fat mass to ideal (guessing mi fit formula)
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def getFatMassToIdeal(self):
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mass = (self.weight * (self.getFatPercentage() / 100)) - (self.weight * (self.scales.getFatPercentageScale()[2] / 100))
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if mass < 0:
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return {'type': 'to_gain', 'mass': mass*-1}
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else:
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return {'type': 'to_lose', 'mass': mass}
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# Get protetin percentage (warn: guessed formula)
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def getProteinPercentage(self, orig=True):
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# Use original algorithm from mi fit (or legacy guess one)
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if orig:
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proteinPercentage = (self.getMuscleMass() / self.weight) * 100
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proteinPercentage -= self.getWaterPercentage()
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else:
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proteinPercentage = 100 - (floor(self.getFatPercentage() * 100) / 100)
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proteinPercentage -= floor(self.getWaterPercentage() * 100) / 100
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proteinPercentage -= floor((self.getBoneMass()/self.weight*100) * 100) / 100
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return self.checkValueOverflow(proteinPercentage, 5, 32)
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# Get body type (out of nine possible)
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def getBodyType(self):
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if self.getFatPercentage() > self.scales.getFatPercentageScale()[2]:
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factor = 0
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elif self.getFatPercentage() < self.scales.getFatPercentageScale()[1]:
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factor = 2
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else:
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factor = 1
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if self.getMuscleMass() > self.scales.getMuscleMassScale()[1]:
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return 2 + (factor * 3)
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elif self.getMuscleMass() < self.scales.getMuscleMassScale()[0]:
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return (factor * 3)
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else:
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return 1 + (factor * 3)
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# Get Metabolic Age
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def getMetabolicAge(self):
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if self.sex == 'female':
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metabolicAge = (self.height * -1.1165) + (self.weight * 1.5784) + (self.age * 0.4615) + (self.impedance * 0.0415) + 83.2548
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else:
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metabolicAge = (self.height * -0.7471) + (self.weight * 0.9161) + (self.age * 0.4184) + (self.impedance * 0.0517) + 54.2267
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return self.checkValueOverflow(metabolicAge, 15, 80)
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