Display an orthographic projection plot of a nifti object.

ortho3(
  underlay,
  overlay = NULL,
  xyz = NULL,
  zlim = NULL,
  zlim_ol = NULL,
  alpha = 0.7,
  col_ol = viridisLite::viridis(64),
  orient_lab = TRUE,
  rescale = 1,
  crosshairs = TRUE,
  ch_lwd = 1,
  colourbar = TRUE,
  bg = "black",
  mar = c(0, 0, 0, 0),
  smallplot = c(0.63, 0.65, 0.07, 0.42),
  legend_axis_cex = 0.75
)

Arguments

underlay: underlay image to be shown in grayscale.
overlay: optional overlay image.
xyz: x, y, z slice coordinates to display.
zlim: underlay intensity limits.
zlim_ol: overlay intensity limits.
alpha: transparency of overlay.
col_ol: colour palette of overlay.
orient_lab: display orientation labels (default TRUE).
rescale: rescale factor for the underlay and overlay images.
crosshairs: display the crosshairs (default TRUE).
ch_lwd: crosshair linewidth.
colourbar: display a colourbar for the overlay (default TRUE).
bg: plot background colour.
mar: plot margins.
smallplot: smallplot option for positioning the colourbar.
legend_axis_cex: fornt expansion factor for the legend axis text.