R: Methods for Spatial Functions

methods.funxy {spatstat.geom} | R Documentation

## Methods for Spatial Functions

### Description

Methods for objects of the class `"funxy"`.

### Usage

    ## S3 method for class 'funxy'
    contour(x, ...)
    ## S3 method for class 'funxy'
    persp(x, ...)
    ## S3 method for class 'funxy'
    plot(x, ...)

### Arguments

`x` | Object of class `"funxy"` representing a function of x,y coordinates.
`...` | Named arguments controlling the plot. See Details.

### Details

These are methods for the generic functions `plot`, `contour` and `persp` for the class `"funxy"` of spatial functions.

Objects of class `"funxy"` are created, for example, by the commands `distfun` and `funxy`.

The `plot`, `contour` and `persp` methods first convert `x` to a pixel image object using `as.im`, then display it using `plot.im`, `contour.im` or `persp.im`.

Additional arguments `...` are either passed to `as.im.function` to control the spatial resolution of the pixel image, or passed to `contour.im`, `persp.im` or `plot.im` to control the appearance of the plot.

### Value

`NULL`.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.

### See Also

`funxy`, `distfun`, `as.im`, `plot.im`, `persp.im`, `contour.im`, `spatstat.options`

### Examples

       f <- distfun(letterR)
       contour(f)
       B <- owin(c(1,5), c(-1, 4))
       contour(f, W=B)
       persp(f, W=B, theta=40, phi=40, border=NA, shade=0.7)

[Package spatstat.geom version 2.3-2 Index]