Plot False-Colour Map with ggplot2

This function plots false-colour map by using ggplot2 functions.

Note that qplotmap() will currently produce wrong scales if x or y are discrete.

Note: The function is still experimental and may change in the future.

qplotmap(
  object,
  mapping = aes_string(x = "x", y = "y", fill = "spc"),
  ...,
  func = mean,
  func.args = list(),
  map.tileonly = FALSE
)

Arguments

object

A hyperSpec object.

mapping

See ggplot2::geom_tile().

...

Further arguments handed to ggplot2::geom_tile().

func

Function to summarize the wavelengths.

func.args

A named list with arguments to func.

map.tileonly

If TRUE, mapping will be handed to ggplot2::geom_tile() instead of ggplot2::ggplot().

Value

A ggplot2::ggplot() object.

See also

• hyperSpec::plotmap();

• ggplot2::ggplot(), ggplot2::geom_tile().

Author

Claudia Beleites

Examples

set.seed(1)
faux_cell <- generate_faux_cell()

qplotmap(faux_cell[ , , 1500])


qplotmap(faux_cell[ , , 800])


qplotmap(faux_cell[ , , 1200]) +
   scale_fill_gradientn(colours = palette_alois())