On Sat, 16 Mar 2002 Edwin@balpol.tudelft.nl wrote:
Full_Name: Edwin Version: 1.4.1 OS: SunOS/Solaris Submission from: (NULL) (130.161.1.115) When selecting an X11 visual on Solaris 2.7 with X11(colortype="true") a PseudoColor visual is actually created. (verified with xwininfo)
Note that the help page does *not* say that this `selects a visual'. It says it selects a `color model'. One can use a model which differs from the X11 visual class, but the default class and depth are always used. This seems to be a misunderstanding of the `colortype' argument: there is no argument to select a visual class.
The system in question (like many UNIX workstations) has both Pseudo and truecolor visual types available, however the default type points to an 8 plane PseudoColor visual.
I believe that is unusual. Sun Xservers allow you to set the default visual on the command line: has the default been overridden? Ours with multiple visuals are selecting TrueColor, but it does say the default is hardware-dependent.
Some applications look for the truecolor visual (netscape, acroread) and use it when available. For others it needs to be explicitely requested (VNC viewer). R seems to do neither and just goes with the default, even if a truecolor type is requested.
As it does not say it will do anything else, this is not strictly a bug. It needs someone with the problem to contribute an enhancement, perhaps additional arguments to select the visual class and depth?
Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._