Region Basics

Creates a frame-shaped region with given parameters.

Creates a circular region corresponding to a given circle.

Creates an elliptic region of given bounding rectangle.

Creates a line region.

Creates a region along the given path.

Creates a frame-shaped region with given parameters.

Creates a ring-shaped region with given parameters.

Creates an empty region with a given frame.

Forms a region containing pixels of given locations.

Converts a region to an array of its pixel locations.

It may be considered explicit region decompression.

If the input region contains at least one pixel, then it is copied to the output; otherwise Nil is returned.

Secures against domain errors caused by empty regions, e.g. just before the RegionMassCenter filter is to be invoked.

Tests whether the size of a region doesn't equal zero.

Checks if the point-runs of the input region are correctly arranged (sorted, not overlapping etc.).

You only need to use this tool if you create regions from point-runs manually.