Create an ROI from an existing sf geometry — at_roi_from_sf • annotatR

Create an ROI from an existing sf geometry

Usage

at_roi_from_sf(geometry, label, level = 0L, ..., call = rlang::caller_env())

Arguments

geometry: An sf, sfc, or sfg geometry in image pixel coordinates.
label: Single string class label.
level: Integer pyramid level the coordinates refer to. Default 0.
...: Additional named attributes stored on the ROI. The reserved names author, source, and id set those fields; all others become user attributes.
call: The calling environment, for error reporting.

Value

An annot_roi wrapping the supplied geometry.

See also

Other rois: at_roi_area(), at_roi_bbox(), at_roi_centroid(), at_roi_circle(), at_roi_ellipse(), at_roi_freehand(), at_roi_from_geojson(), at_roi_point(), at_roi_polygon(), at_roi_rect()

Examples

g <- sf::st_point(c(3, 4))
r <- at_roi_from_sf(g, label = "imported", source = "imported")