as.mask
From spatstat v1.0-1
by Adrian Baddeley
Pixel Image Approximation of a Window
Obtain a discrete (pixel image) approximation of a given window
- Keywords
- spatial
Usage
as.mask(w, eps=NULL, dimyx=NULL)
Arguments
- w
- A window (object of class
"owin"
). - eps
- Width and height of a pixel.
- dimyx
- Two integers giving the pixel array dimensions
Details
The shape of the window w
will be approximated
by a binary pixel image. See owin.object
for
explanation of binary image masks.
The pixel raster will be an $m \times n$ rectangular grid
where $m, n$ are given by dimyx[2], dimyx[1]
respectively (if the argument dimyx
is given)
or by the constraint that
pixel widths and heights should be approximately eps
.
If neither eps
nor dimyx
is given,
the default is to set eps
equal to 1/100 of the window
width or height.
There is no inverse of this function!
Value
- A window (object of class
"owin"
) of type"mask"
representing a binary pixel image.
See Also
Examples
library(spatstat)
w <- owin(c(0,10),c(0,10), poly=list(x=c(1,2,3,2,1), y=c(2,3,4,6,7)))
plot(w)
m <- as.mask(w)
plot(m)
Community examples
Looks like there are no examples yet.