R: Offset an input image relative to its current position.

feOffset {gridSVG} | R Documentation

## Offset an input image relative to its current position.

### Description

This filter primitive offsets the input image relative to its current position in the image space by the specified vector.

This is important for effects like drop shadows.

### Usage

    feOffset(input = NA,
             dx = unit(0, "npc"), dy = unit(0, "npc"),
             default.units = "npc", ...)

### Arguments

`input` | Identifies an input for this filter primtive. See `filterInputs`.
`dx` | The amount to offset `input` by along the x-axis.
`dy` | The amount to offset `input` by along the y-axis.
`default.units` | A string indicating the default units to use if `dx` or `dy` are only given as numeric vectors.
`...` | Further arguments to be passed onto `fe`.

### Details

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

### Value

An `fe.offset` object.

### Author(s)

Simon Potter

### References

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

### See Also

`filterEffect`, `fe`.

[Package gridSVG version 1.6-0 Index]