Hi all,
I have a shiny app, in which I want to use rgl's snapshot function. I am
running Xvfb on my server so that rgl works. I start my shiny app as
follows:
echo "Checking for Xvfb..."
pgrep -U username Xvfb > /dev/null 2>&1
if [ "$?" -gt 0 ]; then
echo "Starting Xvfb..."
Xvfb :7 -screen 0 1280x1024x24 &
sleep 2
fi
echo "...starting shiny"
export DISPLAY=":7"; R --no-save --no-restore -e "library('shiny');
runApp('/path/to/app', port=8101)"
In the app, I do plot3d(), generate webGL and send the results to the
browser. But the rgl.snapshot or rgl.postscript functionality do not work,
i.e. they produce black or empty images. I assume this is due to Xvfb. Any
chance I can create snapshots?
Thanks
Andreas
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