Re: [Rd] fedora core 2 + bitmap() + ghostscript (PR#7062)

From: Marc Schwartz <MSchwartz_at_medanalytics.com>
Date: Wed 07 Jul 2004 - 11:05:43 EST

On Tue, 2004-07-06 at 19:01, Piers.Dunstan@csiro.au wrote:
> Hi all,
> A bug popped up recently when I upgraded to fedora core 2 (from core
> 1). Whenever I used the bitmap() function, ghostscript complained that
> it couldn't handle png or tiff devices. This was NOT a bug with R. It
> was with the version of ghostscript shipped with core 2. Going to
> rawhide and getting ghostscript 7.07-29 (core 2 comes with 7.07-25)
> solved this problem.
>
> Unfortunately, I have no output to demonstrate this problem as I FINALLY
> managed to fix it, and there's no way I going back :)
>
> Thanks Piers

Here is some example output, which is a problem with the default version of GS in FC2:

> bitmap("test.png")
> DEBUG: no psname was provided.

DEBUG: no psname was provided.
DEBUG: no psname was provided.
plot(1:10)
> dev.off()

null device

          1

However, despite the msgs, the PNG file _is_ created with the plot.

I have noted the above problems when opening postscript files using gv, where the above DEBUG msg appears in a pop up window. You have to clear the pop up to get the file to display. This has been a problem since moving to FC2.

Note that I installed the updated '-29' rpms from fedora development and re-ran the sequence of statements _during the same R session_ and the second sequence below is the result, with the DEBUG msgs gone:

> bitmap("test.png")
> plot(1:10)
> dev.off()

null device

          1

This should not have been reported however to R-bugs, since as you note above, it is not a bug in R. An FYI "heads up" msg to r-devel and/or r-help would have been entirely reasonable though.

Marc Schwartz



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https://www.stat.math.ethz.ch/mailman/listinfo/r-devel Received on Wed Jul 07 11:09:22 2004

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