view_comp: View composite of images

In ciftiTools: Tools for Reading, Writing, Viewing and Manipulating CIFTI Files

View composite of images

Description

Create a single image which displays multiple image files. Tailored to support composite layouts of plots from view_xifti.

Usage

view_comp(
  img,
  ncol = NULL,
  nrow = NULL,
  legend = NULL,
  title = NULL,
  legend_height = 0.3,
  title_height = 0.1,
  title_fsize = 5,
  newpage = is.null(fname),
  fname = NULL,
  ...
)

Arguments

img	Character vector of paths to images to include. They will be arranged by row.
ncol, nrow	Control the layout of the composite image. NULL (default) will use approximately same numbers of rows and columns.
legend	File path to a legend image to add, or NULL (default) to not add a legend.
title	A length-one character vector to use as the title, or NULL (default) to not add a title.
legend_height, title_height	Heights of the legend and title, if applicable. Specified relative to all the plots, so .1 would mean the height is a tenth of the height of all the plots. Default: .1 for the title and .3 for the legend.
title_fsize	Multiplier for font size. Default: 5
newpage	Call grid::grid.newpage before rendering? Default: is.null(fname).
fname	If NULL (default), print the result. Otherwise, save to a PNG file at this location. Will override newpage to FALSE.
...	Additional arguments to gridExtra::arrangeGrob. The arguments grobs and layout_matrix should be avoided because they are determined based on img. adjusting widths may be useful, e.g. to make the subcortex subplot be less wide than the cortex subplot.

Details

Requires the following packages: png, grid, gridExtra

How it works: the non-legend images (plots) are composited in a call to grid::arrangeGrob. If a title or legend exists, it's added to the top and bottom, respectively, of the plots after with another call to grid::arangeGrob.

Value

The composite plot

See Also

Other visualizing: view_surf(), view_xifti(), view_xifti_surface(), view_xifti_volume()

ciftiTools documentation built on Oct. 4, 2024, 1:12 a.m.