# nearest.raster.point

From spatstat v1.3-2
by Adrian Baddeley

##### Find Pixel Nearest to a Given Point

Given cartesian coordinates, find the nearest pixel.

- Keywords
- spatial

##### Usage

`nearest.raster.point(x,y,w)`

##### Arguments

- x
- Numeric vector of $x$ coordinates of any points
- y
- Numeric vector of $y$ coordinates of any points
- w
- A window (an object of class
`"owin"`

) of type`"mask"`

representing a binary pixel image.

##### Details

The argument `w`

should be a window (an object of class
`"owin"`

, see `owin.object`

for details).
A window of type `"mask"`

represents a binary pixel image.

This function returns a list containing two vectors `rr`

and
`cc`

giving row and column positions (in the image matrix).
For the location `(x[i],y[i])`

the nearest
pixel is at row `rr[i]`

and column `cc[i]`

of
the image.

##### Value

- List containing two vectors
`rr`

and`cc`

giving row and column positions (in the image matrix).

##### See Also

##### Examples

```
library(spatstat)
w <- owin(c(0,1), c(0,1), mask=matrix(TRUE, 100,100)) # 100 x 100 grid
nearest.raster.point(0.5, 0.3, w)
```

*Documentation reproduced from package spatstat, version 1.3-2, License: GPL version 2 or newer*

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