Digitize-class | R Documentation |
Digitizing images
image
object of class "raster", image to be digitized
xpts,ypts,
numeric vectors of length specifying, some well defined length on, respectively, 'x' and 'y' axes.
xinterval,yinterval
numeric scalars, lengths of the intervals marked
with xpts
and ypts
points
initialize()
initialize object
markx(col = "blue", pch = 4, ...)
mark points on X axis
marky(col = "blue", pch = 4, ...)
mark points on Y axis
plot(path = FALSE, col = "red", labels = TRUE, pos = 1, ...)
plot points
start(..., append = TRUE, ask = FALSE, col = "red", type = "p")
Starts adding points
transform()
transform data points
Locator
, as.raster
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