plotMassImageByPeak: Plot a mass image of a up to 3 selected ions.
In prafols/rMSI: MSI Tools

Plot a mass image of a up to 3 selected ions.

plotMassImageByPeak(
  img,
  mass.peak,
  tolerance = 0.25,
  XResLevel = 3,
  NormalizationCoefs = NULL,
  rotation = 0,
  show_axes = F,
  scale_to_global_intensity = F,
  vlight = 3,
  crop_area = NULL,
  intensity_limit = NULL
)

`img`	an rMSI data object.
`mass.peak`	a vector of up to 3 elements containing the mass of ions to plot.
`tolerance`	a vector of up to 3 elements containing the mass range to plot for each ion.
`XResLevel`	the interpolation factor (default is 3).
`NormalizationCoefs`	optional parameter with a matrix containing the scaling factors for each pixel.
`rotation`	the rotation of image expressed in deg. Valid values are: 0, 90, 180 and 270.
`show_axes`	if true axis will be plotted. Otherwise a um scale and xy arrows are drawn.
`scale_to_global_intensity`	scale the image intensity to fit into the global intensity (only for RGB).
`vlight`	the lighting of the plotted image.
`crop_area`	the region of image to show in a vector formated as c(left, right, bottom, top) if null the whole image is plot.
`intensity_limit`	limit the all pixels intensities to a given value. If null no limiting is used. Plots a mass image. If only one mass ion are used a rainbow color code image is generated. If more ions are used each mass will be encoded in an RGB color channel.