geom_rect_img: Display Images from Bounding Boxes

View source: R/geom.R

geom_rect_imgR Documentation

Display Images from Bounding Boxes


Display Images from Bounding Boxes


  mapping = NULL,
  data = NULL,
  stat = "identity",
  position = "identity",
  show.legend = NA,
  inherit.aes = TRUE,
  interpolate = TRUE




Set of aesthetic mappings created by [aes()] or [aes_()]. If specified and 'inherit.aes = TRUE' (the default), it is combined with the default mapping at the top level of the plot. You must supply 'mapping' if there is no plot mapping.


The data to be displayed in this layer. There are three options:

If 'NULL', the default, the data is inherited from the plot data as specified in the call to [ggplot()].

A 'data.frame', or other object, will override the plot data. All objects will be fortified to produce a data frame.

A 'function' will be called with a single argument, the plot data. The return value must be a 'data.frame', and will be used as the layer data. A 'function' can be created from a 'formula' (e.g. '~ head(.x, 10)').


The statistical transformation to use on the data for this layer, as a string.


Position adjustment, either as a string, or the result of a call to a position adjustment function.


logical. Should this layer be included in the legends? 'NA', the default, includes if any aesthetics are mapped. 'FALSE' never includes, and 'TRUE' always includes. It can also be a named logical vector to finely select the aesthetics to display.


If 'FALSE', overrides the default aesthetics, rather than combining with them. This is most useful for helper functions that define both data and aesthetics and shouldn't inherit behaviour from the default plot specification, e.g. [borders()].


Other arguments passed on to [layer()]. These are often aesthetics, used to set an aesthetic to a fixed value.


A logical value indicating whether to linearly interpolate the image (the alternative is to use nearest-neighbour interpolation, which gives a more blocky result).


An object of class GeomRectImage (inherits from Geom, ggproto, gg) of length 6.


Taylor B. Arnold,


posters$path <- file.path(
  system.file("extdata", package="ggimg"), posters$img
p_paths <- ggplot(posters) +
    xmin = year - 0.5,
    xmax = year + 0.5,
    ymin = stars - 0.5,
    ymax = stars + 0.5,
    img = path

ggimg documentation built on Aug. 17, 2022, 5:06 p.m.