# distmap

From spatstat v1.18-4
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)
```

*Documentation reproduced from package spatstat, version 1.18-4, License: GPL (>= 2)*

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