distmap
From spatstat v1.19-2
by Adrian Baddeley
Distance Map
Compute the distance map of an object, and return it as a pixel image. Generic.
Usage
distmap(X, ...)
Arguments
- X
- Any suitable dataset representing a two-dimensional
object, such as a point pattern (object of class
"ppp"
), a window (object of class"owin"
) or a line segment pattern (object of class"psp"
). - ...
- Arguments passed to
as.mask
to control pixel resolution.
Details
The f(x)
is defined for any two-dimensional
location $x$ as the shortest distance from $x$ to $A$.
This function computes the distance map of the set X
and returns the distance map as a pixel image.
This is generic. Methods are provided for
point patterns (distmap.ppp
),
line segment patterns (distmap.psp
)
and windows (distmap.owin
).
Value
- A pixel image (object of class
"im"
) whose grey scale values are the values of the distance map.
See Also
Examples
data(cells)
U <- distmap(cells)
data(letterR)
V <- distmap(letterR)
plot(U)
plot(V)
Community examples
Looks like there are no examples yet.