Buffer an ROI

Buffer an ROI

Usage

at_roi_buffer(roi, dist, call = rlang::caller_env())

Arguments

roi

An annot_roi.

dist

Numeric buffer distance in pixels (may be negative to erode).

call

The calling environment, for error reporting.

Value

An annot_roi with the buffered geometry.

See also

Other geometry: at_check_containment(), at_check_geometry(), at_clamp(), at_fix_geometry(), at_flip_y(), at_roi_contains(), at_roi_distance(), at_roi_overlaps(), at_roi_rescale(), at_roi_ring(), at_roi_setops, at_roi_simplify(), at_rois_overlap(), at_snap(), at_transform()

Examples

at_roi_buffer(at_roi_point(10, 10, label = "a"), dist = 5)
#> <annot_roi> a (POLYGON)
#> id: "roi_000000054"  |  level: 0  |  source: manual
#> bbox: [5, 5] - [15, 15]