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FileMaker Pro Custom Functions

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AreaConvert ( Width , Wunit , Height , Hunit , OutUnit )

Ibrahim Bittar, Eikonsys
http://www.eikonsys.com

Calculates areas based on multiple units

Sample Input:

AreaConvert ( 12 , "in" , 2 , "ft" , "m2" )

Sample Output:

0.19 (measured in square meters)

Let ( [ WFactor = Case ( Wunit = "mm" and OutUnit = "cm2" ; .1 ; Wunit = "mm" and OutUnit = "m2" ; .001 ; Wunit = "mm" and OutUnit = "in2" ; .039370079 ; Wunit = "mm" and OutUnit = "ft2" ; .0032808399 ; Wunit = "cm" and OutUnit = "mm2" ; 10 ; Wunit = "cm" and OutUnit = "m2" ; .01 ; Wunit = "cm" and OutUnit = "in2" ; .39370079 ; Wunit = "cm" and OutUnit = "ft2" ; .03280839895 ; Wunit = "m" and OutUnit = "mm2" ; 1000 ; Wunit = "m" and OutUnit = "cm2" ; 100 ; Wunit = "m" and OutUnit = "in2" ; 39.370079 ; Wunit = "m" and OutUnit = "ft2" ; 3.280839895 ; Wunit = "in" and OutUnit = "mm2" ; 25.4 ; Wunit = "in" and OutUnit = "cm2" ; 2.54 ; Wunit = "in" and OutUnit = "m2" ; .0254 ; Wunit = "in" and OutUnit = "ft2" ; .083333333333 ; Wunit = "ft" and OutUnit = "mm2" ; 304.8 ; Wunit = "ft" and OutUnit = "cm2" ; 30.48 ; Wunit = "ft" and OutUnit = "m2" ; .3048 ; Wunit = "ft" and OutUnit = "in2" ; 12 ; 1 ) ; HFactor = Case ( Hunit = "mm" and OutUnit = "cm2" ; .1 ; Hunit = "mm" and OutUnit = "m2" ; .001 ; Hunit = "mm" and OutUnit = "in2" ; .039370079 ; Hunit = "mm" and OutUnit = "ft2" ; .0032808399 ; Hunit = "cm" and OutUnit = "mm2" ; 10 ; Hunit = "cm" and OutUnit = "m2" ; .01 ; Hunit = "cm" and OutUnit = "in2" ; .39370079 ; Hunit = "cm" and OutUnit = "ft2" ; .03280839895 ; Hunit = "m" and OutUnit = "mm2" ; 1000 ; Hunit = "m" and OutUnit = "cm2" ; 100 ; Hunit = "m" and OutUnit = "in2" ; 39.370079 ; Hunit = "m" and OutUnit = "ft2" ; 3.280839895 ; Hunit = "in" and OutUnit = "mm2" ; 25.4 ; Hunit = "in" and OutUnit = "cm2" ; 2.54 ; Hunit = "in" and OutUnit = "m2" ; .0254 ; Hunit = "in" and OutUnit = "ft2" ; .083333333333 ; Hunit = "ft" and OutUnit = "mm2" ; 304.8 ; Hunit = "ft" and OutUnit = "cm2" ; 30.48 ; Hunit = "ft" and OutUnit = "m2" ; .3048 ; Hunit = "ft" and OutUnit = "in2" ; 12 ; 1 ) ] ; Width * WFactor * Height * HFactor )
Then copy & paste into FileMaker Advanced's Edit Custom Function window.

if you have myFMbutler's Clip Manager installed

Description:

This custom function calculates an area based on Widths and Heigths with multiple input and output units.

Width and Height can be expressed in milimeters, centimeters, meters, inches and feet. Calculated area can be expressed in square millimeters, square centimeters, square meters, square inches and square feet.

You can use any combination of these units in the Width, Height and Area and the CF will calculate the final area accordingly.

For example: let's suppose you have a Width of 10 inches, a Height of 15 centimeters and you want to express the area in square feet. In this case you could use a calculation like this:

AreaConvert ( 10 , "in" , 15 , "cm" , "ft2" ) and the result will be 0.4101049868733596 square feet.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

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