Geometry.area Function

Format

d = geometry_name.area();

Description

The Geometry.area function computes the area, in square meters, of the polygons contained in the Geometry object named geometry_name. If the Geometry object contains multiple polygons, this function returns the sum of the areas of all of these polygons. If the polygons overlap, the results will be incorrect. Points and lines in the geometry are ignored, so if the geometry contains only points and lines, the area will be zero.

The Geometry.area function uses the Haversine formula to approximate the area of the polygon and makes certain assumptions about the diameter and shape of the earth which may give slightly different results than the area calculated by other software packages.

Return Value

The function returns the sum of areas of all polygons in the Geometry object in square meters or default if the Geometry object is empty.

Example

// Declare a geometry
Geometry mygeometry;

// Capture polygon
if mygeometry.tracePolygon() then

// Compute the area of the captured polygon
AREA = mygeometry.area();

endif;