Hello, I tried to use rgl.snapshot and it failed. The error message was not very verbose: =====================>> > plot3d( motion[[idx+2]], motion[[idx+1]], motion[[idx]] ) > rgl.snapshot(filename="/tmp/shot_01.png", fmt="png")[1] "failed">===================== There was a graphic created by rgl, but the snapshot was not created. The same problem occurs, when I use > example(rgl.snapshot) The graphic/animation will be created, but there is no possibility to create the output-files. I use "R version 2.4.0 Patched (2006-11-25 r39997)". Is this a problem of this old version? or is there maybe a general problem, independent of the version? Any ideas? Best, oliver
On 10/10/2008 8:13 AM, Oliver Bandel wrote:> Hello, > > > I tried to use rgl.snapshot and it failed. > > The error message was not very verbose: > > > > =====================>> >> plot3d( motion[[idx+2]], motion[[idx+1]], motion[[idx]] ) >> rgl.snapshot(filename="/tmp/shot_01.png", fmt="png") > [1] "failed" > > =====================> > There was a graphic created by rgl, but the snapshot was > not created. > > The same problem occurs, when I use > > example(rgl.snapshot) > > The graphic/animation will be created, but there is no possibility > to create the output-files. > > I use "R version 2.4.0 Patched (2006-11-25 r39997)". > Is this a problem of this old version? or is there > maybe a general problem, independent of the version?This is a problem with the build. rgl is not easy to build, because it links to a lot of external libraries. In this case it looks as though your build (the one from R-forge? You should say...) did not link to libpng. Duncan Murdoch
Zitat von Duncan Murdoch <murdoch at stats.uwo.ca>:> On 10/10/2008 8:13 AM, Oliver Bandel wrote: > > Hello, > > > > > > I tried to use rgl.snapshot and it failed. > > > > The error message was not very verbose: > > > > > > > > =====================> >> > >> plot3d( motion[[idx+2]], motion[[idx+1]], motion[[idx]] ) > >> rgl.snapshot(filename="/tmp/shot_01.png", fmt="png") > > [1] "failed" > > > > =====================> > > > There was a graphic created by rgl, but the snapshot was > > not created. > > > > The same problem occurs, when I use > > > example(rgl.snapshot) > > > > The graphic/animation will be created, but there is no possibility > > to create the output-files. > > > > I use "R version 2.4.0 Patched (2006-11-25 r39997)". > > Is this a problem of this old version? or is there > > maybe a general problem, independent of the version? > > This is a problem with the build. rgl is not easy to build, because > it > links to a lot of external libraries. In this case it looks as > though > your build (the one from R-forge? You should say...) did not link to > libpng.[...] I installed a binary (Debian etch). I may try the same things at my laptop. There I have Ubuntu, and it uses much newer R versions. maybe they also have fixed this problem. If the error messages would be a littlebid more verbose, this could help. Is it possible to configure the verboseness of the error messages? Ciao, Oliver