Back to Adaptive Vision Studio website

You are here: Start » Filter Reference » Shape Features » ShapeArea


Computes the area of a shape.

Name Type Description
inShape Path
outArea Real


The operation computes the area of a shape bounded by a closed path. The area is measured in square pixels. As paths in AVS are subpixel-precise, the result may be (and usually is) non-integer.

Note that if the input path is not a valid shape (i.e. it has at least one self-intersection), the computation may lead to results that are not intuitive.


Description of usage of this filter can be found in examples and tutorial: Mounts (Contour Analysis).

Area of the sample shape equals to 40652.37.

Area of the sample shape equals to 1287.675.


This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError Open path on input in ShapeArea.

Complexity Level

This filter is available on Basic Complexity Level.

See Also

  • RegionArea – Computes the number of pixels contained in a region.