snap: Take a snapshot of the current 3D plot
In p3d: Plot 3d data and fitted surfaces

Description Usage Arguments Details Value Author(s) See Also Examples

snap is designed as a more convenient interface to rgl.snapshot, allowing one to set a base filename for graphic output files, an initial sequence number, and then just use

snap()

to capture the current screen image to a sequentially numbered output file.

1	snap(suffix = "", fn = .snap.fn, n = .snap.n, inc = TRUE, fmt = "png")

`suffix`	Character string appended to `paste(fn, n)`, for use in naming a related collection of figures (without incrementing `n`.
`fn`	Base file name, typically set by assigning a character string to `.snap.fn` in the global environment.
`n`	Initial suffix number used to construct the file name, typically set by assigning a character string to `.snap.n` in the global environment.
`inc`	Should the function increment the sequential number in the global environment?
`fmt`	Output graphic file format. Default: `png`

Output files are written to the current directory. Use setwd to put them where you want.

Returns invisibly the name of the snapshot file

Georges Monette

rgl.snapshot

## Not run: 
.snap.fn <- 'Lecture1'
.snap.n <- '001'

# ... generate an rgl graph ...
snap()
# ... will invoke rgl.snapshot which filename 'Lecture1001.png' and increment
# .snap.n to '002' in the .GlobalEnv

# ... generate an rgl graph ...
snap()
# ... will invoke rgl.snapshot which filename 'Lecture1002.png' and increment
# .snap.n to '003' in the .GlobalEnv

## End(Not run)