Obtain the outline of a spatial anontation

Exracts an object as created by sf::st_polygon() that corresponds to the spatial annotation.

getSpatAnnSf(object, id, img_name = activeImage(object))

Arguments

object

An object of class SPATA2 or, in case of S4 generics, objects of classes for which a method has been defined.

id

Character value specifying the ID of the spatial annotation of interest. If there is only one spatial annotation in the object, the function will default to using it. However, if there are multiple annotations, this argument must be explicitly specified to identify the target annotation.

Value

An object of class POLYGON from the sf package.