R: "Fatten" or "thin" artwork.

feMorphology {gridSVG} | R Documentation

## "Fatten" or "thin" artwork.

### Description

This filter primitive performs "fattening" or "thinning" of artwork. It is particularly useful for fattening or thinning an alpha channel.

### Usage

    feMorphology(input = NA, operator = c("erode", "dilate"),
                 radius = unit(0, "npc"), default.units = "npc", ...)

### Arguments

`input` | Identifies an input for this filter primtive. See `filterInputs`.
`operator` | A keyword indicating whether to erode (i.e., thin) or dilate (fatten) the source graphic, `input`.
`radius` | The radius (or radii) for the operation. If two values are provided, the first value represents a x-radius and the second value represents a y-radius. If one radius is provided, then that value is used for both xand y.
`default.units` | A string indicating the default units to use if `radius` is only given as a numeric vector.
`...` | Further arguments to be passed onto `fe`.

### Details

For more information about this primitive, consult the reference to the SVG specification.

### Value

An `fe.morphology` object.

### Author(s)

Simon Potter

### References

http://www.w3.org/TR/SVG/filters.html#feMorphologyElement

### See Also

`filterEffect`, `fe`.

[Package gridSVG version 1.6-0 Index]