I think the 2nd option will be more palatable to inexperienced users, but both do state the important detail. Bryan
> On Jan 30, 2016, at 4:11 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > > On OSX and Linux, the rgl package currently requires X11 libs to be available > for linking. Recent versions of OSX don't include them by default, so I'd > like rgl to fail nicely. > > Ideally, it will load a library that doesn't need to link to the X11 libs but > will still allow WebGL code to work, but that's complicated, so I'd like a > stopgap. > > I can detect that the failure is about to happen, and call stop() in the > .onLoad hook, but that gives an ugly message: > > > library(rgl) > Error : .onLoad failed in loadNamespace() for 'rgl', details: > call: NULL > error: X11 not found; XQuartz (from www.xquartz.org) is required to run rgl. > Error: package or namespace load failed for ‘rgl’ > > Alternatively, I can just give a warning and not attempt to load the rgl lib: > > > library(rgl) > Warning message: > X11 not found; XQuartz (from www.xquartz.org) is required to run rgl. > > rgl is now loaded, but it doesn't work; just about any function call will > give an error, e.g. > > > plot3d(1,2,3) > Error in rgl.cur() : object 'rgl_dev_getcurrent' not found > > Do people have opinions about this? > > One comparable package is RGtk2: if Gtk2 isn't install, it offers to install > it. I could probably do that for XQuartz. If the user says no, RGtk2 gives > really ugly error messages. rgl can work without XQuartz, but as I already > mentioned, making this work is complicated, so I'd like something simple for > now. > > Duncan Murdoch > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
