Add a rectangular around an image annotation

Adds a rectangular to the surface plot that visualizes the spatial extent of the cropped image section as plotted by plotImageAnnotations().

ggpLayerImgAnnRect(object, ids, expand = "25%", ...)

Arguments

object

An object of class spata2.

ids

Character vector or NULL. If character, specifies the IDs of the image annotations of interest. If numeric, the image annotations are picked by number. If NULL, all image annotations are included - subsequent selection with tags and test is possible.

expand

Specifies image expansion. An image that is cropped based on an image annotation centers around the image annotation. If expand = 0, the default, the dimensions of the image, that is width/x-axis and height/y-axis, are set to include only the image annotation area and nothing more. Using expand, the cropped image section can be adjusted. See section Expansion of cropped image sections for more information.

...

Used to absorb deprecated arguments or functions.

Value

A ggplot.