annotate_aperture: Draw bitmap image as ggplot2 annotation and cover rest with...

In jirilukavsky/motrack: Tools for Multiple Object Tracking experiments

Draw bitmap image as ggplot2 annotation and cover rest with filled colour

Description

Draw bitmap image as ggplot2 annotation and cover rest with filled colour

Usage

annotate_aperture(
  image,
  xlim_in,
  ylim_in,
  colour,
  alpha = 1,
  xlim_out = NULL,
  ylim_out = NULL,
  settings = NULL
)

Arguments

image	rasterGrob object or filename (png)
xlim_in	x-coordinates of the image
ylim_in	y-coordinates of the image
colour	fill colour for the remaining area
alpha	Transparency for remaining area (not for the drawn image)
xlim_out	x-coordinates of the covered area
ylim_out	y-coordinates of the covered area
settings	list with named parameters, default values for xlim_out and ylim_out can be taken from xlim and ylim

Value

ggplot2 layer (as in 'ggplot2::annotate')

Examples

image <- system.file("extdata/aperture_white.png", package="motrack")
s <- new_settings()
plot_position(position8c, s,
  foreground_annotation = annotate_aperture(
    image, xlim_in = c(-6, 6), ylim_in = c(-6, 6), colour = "white", settings = s
))

jirilukavsky/motrack documentation built on Jan. 30, 2023, 5:04 a.m.