as.raster {ursa} | R Documentation |
as.raster
transforms object of class ursaRaster
to the object of class raster
(package grDevices)
## S3 method for class 'ursaRaster' as.raster(x, ...)
x |
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... |
Set of argumetns, which are recognized via their names (using regular expressions) and classes:
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A raster
object. It is a matrix. The values of matrix are colors.
Nikita Platonov platonov@sevin.ru
session_grid(NULL) session_grid(regrid(mul=1/2)) a <- ursa_dummy(4,min=0,max=255) a[a<70] <- NA compose_open(layout=c(1,4),legend=NULL) for (i in seq(4)) { panel_new() panel_plot(as.raster(a[seq(i)]),interpolate=FALSE) panel_annotation(paste("Number of channels:",i)) } compose_close() op <- par(mfrow=c(2,2),mar=rep(0.5,4)) plot(as.raster(a[1:1]),interpolate=FALSE) plot(as.raster(a[1:2]),interpolate=FALSE) plot(as.raster(a[1:3]),interpolate=FALSE) plot(as.raster(a[1:4]),interpolate=FALSE) par(op)