Create a point ROI — at_roi_point • annotatR

Create a point ROI

Usage

at_roi_point(x, y, label, level = 0L, ..., call = rlang::caller_env())

Arguments

x, y: Numeric coordinates of the point, in image pixels.
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 with POINT geometry.

See also

at_roi_rect(), at_roi_polygon()

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_from_sf(), at_roi_polygon(), at_roi_rect()

Examples

r <- at_roi_point(10, 20, label = "cell")
at_roi_centroid(r)
#> [1] 10 20