Function: polygonContainsPt()

Returns True if the point is contained in the polygon.

Syntax

polygonContainsPt(polyX, polyY, pointX, pointY, decimalPlaces)

Argument	Type	Description
polyX	Array	Array of x coordinates of the polygon (only integer part is used).
polyY	Array	Array of y coordinates of the polygon (only integer part is used)
pointX	Integer	X coordinate of a point to be tested.
pointY	Integer	Y coordinate of a point to be tested.
decimalPlaces	Integer	The number of decimal places to use in the geometry calculations. Defaults to 0 if not provided. Can also take negative values e.g. -1 uses geometry to the nearest 10.

polygonContainsPt([10,20,20,10],[10,10,20,20],15,15)

Returns 1

polygonContainsPt([10,20,20,10],[10,10,20,20],21,15)

Returns 0

Note that when the point to be tested is on the boundary, the result is not predictable:

polygonContainsPt([10,20,20,10],[10,10,20,20],10,15)

Returns 1

polygonContainsPt([10,20,20,10],[10,10,20,20],10,10)

Returns 1

polygonContainsPt([10,20,20,10],[10,10,20,20],20,20)

Returns 0