The source and destination nativeRaster images must have the same dimensions.
nr_copy_into(dst, src, mask = NULL, color = "black", invert = FALSE)Arguments
- src, dst
Source and destination
nativeRasterimages- mask
Optional nativeRaster image to use as a mask. Default: NULL (no mask)
- color
Copy the source pixels into the destination where the mask matches this color. See also the
invertargument.- invert
Invert masking so that pixels are copied where the mask does not match the specified color. Default: FALSE
Value
The 'dst' nativeRaster
Details
If the nativeRaster images are of different sizes or alpha blending is
required, use the nr_blit() function.
Examples
nr1 <- nr_new(200, 100, 'hotpink')
nr2 <- nr_new(200, 100, 'green')
nr_copy_into(nr1, nr2)
plot(nr1)
# Copy with mask
logo <- png::readPNG(system.file("img", "Rlogo.png", package="png"), native = TRUE)
src <- nr_duplicate(logo)
dst <- nr_duplicate(logo)
nr_fill(src, 'hotpink')
nr_copy_into(dst, src, mask = logo, col = 0L, invert = TRUE)
plot(dst, T)
