Description Usage Arguments Details Note See Also Examples
Saves the screenshot as png file.
1 2 | rgl.snapshot( filename, fmt = "png", top = TRUE )
snapshot3d( filename, ..., scene, width = NULL, height = NULL)
|
filename |
full path to filename. |
fmt |
image export format, currently supported: png |
top |
whether to call |
... |
arguments to pass to |
scene |
an optional result of |
width, height |
optional specifications of output size in pixels |
Animations can be created in a loop modifying the scene and saving
each screenshot to a file. Various graphics programs (e.g. ImageMagick)
can put these together into a single animation. (See movie3d
or
the example below.)
On some systems, the snapshot
will include content from other windows if they cover the active rgl
window. Setting top = TRUE
(the default) will use
rgl.bringtotop
before the snapshot
to avoid this.
There are likely limits to how large width
and
height
can be set based on the display hardware; if these
are exceeded the results are undefined. A typical result
is that the snapshot will still be made but at a smaller
size.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | ## Not run:
#
# create animation
#
shade3d(oh3d(), color = "red")
rgl.bringtotop()
view3d(0, 20)
olddir <- setwd(tempdir())
for (i in 1:45) {
view3d(i, 20)
filename <- paste("pic", formatC(i, digits = 1, flag = "0"), ".png", sep = "")
snapshot3d(filename)
}
## Now run ImageMagick in tempdir(). Use 'convert' instead of 'magick'
## if you have an older version of ImageMagick:
## magick -delay 10 *.png -loop 0 pic.gif
setwd(olddir)
## End(Not run)
|
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