On 2008-12-05 11:23-0700 Doug Hunt wrote:

> Hi Alan:
>
> I did correct some perl roundoff errors as part of fixing up x02.pl, but I've 
> checked these changes in.
>
> Right now from my build of plplot, I don't see any difference in the 
> postscript output:
>
> cd examples
> c/x02c -dev psc -o x02c.ps
> perl/x02.pl -dev psc -o x02perl.ps
> diff x02c.ps x02perl.ps
> 6c6
> < %%CreationDate: Fri Dec  5 10:26:34 2008
> ---
>> %%CreationDate: Fri Dec  5 10:26:50 2008
>
> In particular, the line:
>
> 1.0000 0.0745 0.0745 C Z
>
> is present in both postscript files.
>
> I seem to have checked everything in to the plplot SVN, and I don't
> think there is any difference in our PDL-Graphics-PLplot-0.42 drivers.
>
> I don't know how you run your 'ctest' suite.  Maybe there is some difference 
> there?

I doubt it since I have never seen any change in fundamental ctest results
based on the options used to run it. For the record, however, I ran ctest as
follows:

ctest -R '_c$|perl|compare'

> Is it possible you are running with an old x02.pl?

No.  I just double checked with an svn update to a clean source tree
(revision 9041) and clean (starting with an empty build tree) build and
ctest.  The large number of x02c.psc versus x02pdl.psc color differences (of
the kind I posted before) remain while there are no x20 differences (which I
think you actually dealt with later so it is pretty clear I am running
your latest uploaded work).

Could you double check with a fresh checkout and clean build of PLplot and a
fresh download and build of PDL-Graphics-PLplot-0.42.tar.gz?

In case our different results are due to some platform difference I am
running Debian lenny with perl 5.10.0-17 and pdl 1:2.4.3-8 and following the
0.42 update directions in examples/perl/README.perldemos.  Could you please
also review those update directions to be sure they are correct?

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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