Obtain expanded Image Annotation polygons

Expands polygons of image annotations according to distance, binwidth and n_bins_circle input.

getIasExpansion(
  object,
  id,
  distance = NA_integer_,
  binwidth = getCCD(object),
  n_bins_circle = NA_integer_,
  direction = "outwards",
  inc_outline = TRUE,
  verbose = NULL
)

Arguments

object

An object of class spata2.

id

Character value. The ID of the image annotation of interest.

distance

Distance value. Specifies the distance from the border of the image annotation to the horizon in the periphery up to which the screening is conducted. (See details for more.) - See details of ?is_dist for more information about distance values.

binwidth

Distance value. The width of the circular bins to which the barcode-spots are assigned. We recommend to set it equal to the center-center distance: binwidth = getCCD(object). (See details for more.) - See details of ?is_dist for more information about distance values.

n_bins_circle

Numeric value or vector of length 2. Specifies how many times the area is buffered with the value denoted in binwidth. (See details for more.)

verbose

Logical. If set to TRUE informative messages regarding the computational progress will be printed.

(Warning messages will always be printed.)

Value

List of data.frames.