Outline.## S3 method for class 'outline':
flatplot(x, axt = "n", ylim = NULL, image = TRUE,
scalebar = 1, add = FALSE, lwd.outline = 1, ...)Outline objectTRUE the image (if it is present) is
displayed behind the outlinescale
field, a scale bar of length scalebar mm is plotted. If
scalebar is FALSE or there is no scale information
in the OutlineTRUE, don't draw axes; add to existing plot.