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)
)

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.