Brian Dunning's FileMaker Custom Functions

PolygonArea ( xlist ; ylist )

Calculate area of a polygon from array of XY coordinates

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Jeremiah Small   Jeremiah Small
Soliant Consulting, Inc.
https://www.soliantconsulting.com

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  Sample input:
PolygonArea ( List ( 0;3;0 ) ; List ( 0;0;3 ) )
  Sample output:
4.5

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Calculate the area of a polygon from an arbitrary number of xy coordinates. It uses an old surveying technique called Double Meridian Distance.

Requires helper function: PolygonAreaHelper

 

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

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