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Module: UnitConversion in Category General VBA/VB6 : Data Type and Unit Conversion from Total Visual SourceBook

Convert units of measurement such as degrees, distance, volume, and calendar dates in VBA and VB6.

Procedure List

Procedure Name

Type

Description

(Declarations) Declarations Declarations and private variables for the modUnitConversion module
CelsiusToFahrenheit Procedure Converts from Celsius (centigrade) to Fahrenheit.
ComputeWindChillEnglish Procedure Calculate the wind chill for exposed human skin.
ComputeWindChillMetric Procedure Calculate the wind chill for exposed human skin.
ConvertDistance Procedure Converts between distance units. This function first normalizes metric and English values to meters, then multiplies by the conversion factor for meters.
ConvertVolume Procedure Converts between volume units. This function first normalizes metric and English values to liters, then multiplies by the conversion factor for liters.
ConvertWeight Procedure Converts between weight units. The function normalizes metric and English values to grams, then multiplies by the conversion factor for grams.
DegreesToRadians Procedure Convert degrees to radians (180 degrees equals PI radians).
FahrenheitToCelcius Procedure Converts Fahrenheit to Celsius (centigrade).
JulianDateToGregorianDate Procedure Get a standard Gregorian Date from a Julian Date. The Gregorian calendar is our traditional calendar and is named for Pope Gregory XIII, who made it the official calendar in the 16th century. Julian Day is the number of days in the current year starting with January 1. Julian Date is a five or seven digit number with the first two or four digits being the year followed by the three digit Julian Day.
GregorianDateToJulianDate Procedure Get a Julian Date from a Gregorian Date. The Gregorian calendar is our traditional calendar and is named for Pope Gregory XIII, who made it the official calendar in the 16th century. Julian Day is the number of days in the current year starting with January 1. Julian Date is a five or seven digit number with the first two or four digits being the year followed by the three digit Julian Day.
YearWithoutCentury Procedure For a given year greater than zero, remove the century for a two digit year (with leading 0 if necessary).
GregorianDateToJulianDay Procedure Calculate the Julian Day for a Gregorian Date. The Gregorian calendar is our traditional calendar and is named for Pope Gregory XIII, who made it the official calendar in the 16th century. Julian Day is the number of days in the current year starting with January 1.
RadiansToDegrees Procedure Convert radians to degrees (PI radians equals 180 degrees).

Example Code for Using Module: UnitConversion

' Example of modUnitConversion
'
' To use this example, create a new module and paste this code into it.
' Then run the procedure by putting the cursor in the procedure and pressing:
'    F5 to run it, or
'    F8 to step through it line-by-line (see the Debug menu for more options)

Private Sub Example_modUnitConversion()
  ' Comments: Examples of the modUnitConversion module to convert units of measurement such as degrees, distance, volume, and calendar dates in VBA and VB6.

  Debug.Print "Converting temperature:"
  Debug.Print "100 degrees Celsius is " & CelsiusToFahrenheit(100) & " Fahrenheit"
  Debug.Print "72 degrees Fahrenheit is " & FahrenheitToCelcius(72) & " Celsius"

  Debug.Print "Wind chill for 40 degrees (F) and 30 MPH winds is: " & ComputeWindChillEnglish(40, 30)
  Debug.Print "Wind chill for 10 degrees (C) and 60 KPH winds is: " & ComputeWindChillMetric(10, 60)
  Debug.Print

  Debug.Print "Converting Distance:"
  Debug.Print "12 inches is " & ConvertDistance(12, cvdiInches, cvdiDecameters) & " decameters."
  Debug.Print "3 decameters is " & ConvertDistance(3, cvdiDecameters, cvdiInches) & " inches."
  Debug.Print

  Debug.Print "Converting Volume:"
  Debug.Print "9 gallons is " & ConvertVolume(9, cvvoGallons, cvvoliters) & " liters."
  Debug.Print "9 liters is " & ConvertVolume(9, cvvoliters, cvvoGallons) & " gallons."
  Debug.Print

  Debug.Print "Converting Weight:"
  Debug.Print "13 pounds is " & ConvertWeight(13, cvwePounds, cvweKilograms) & " kilograms."
  Debug.Print "1000 kilograms is " & ConvertWeight(1000, cvweKilograms, cvwePounds) & " pounds."
  Debug.Print

  Debug.Print "Converting Degrees:"
  Debug.Print "45 degrees is " & DegreesToRadians(45) & " radians."
  Debug.Print "92 radians is  " & RadiansToDegrees(92)
  Debug.Print

  Debug.Print "Converting Dates:"
  Debug.Print "Julian Day for today is: " & GregorianDateToJulianDay(Date)
  Debug.Print "4 digit year, Julian Date for today is: " & GregorianDateToJulianDate(Now)
  Debug.Print "2 digit year, Julian Date for today is: " & GregorianDateToJulianDate(Now, False)
  Debug.Print
  Debug.Print "Gregorian Date for 4 digit year 2014295 is: " & JulianDateToGregorianDate(2014295)
  Debug.Print "Gregorian Date for 2 digit year 14295 is: " & JulianDateToGregorianDate(14295, False)
  Debug.Print "Gregorian Date for 2 digit year 14295 for 1900's is: " & JulianDateToGregorianDate(14295, False, 19)

End Sub

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