Hi Alan: I've just checked in a version of x23.pl which adds the missing pages. My system is not configured correctly to display all the fonts, but the perl and c example .ps files generated on my system do end up identical. Please let me know how this looks on your (better configured) system.
Not sure what to do about examples 2 and 27--Ex 2 works fine on my system and mostly fine on yours. Ex 27 is close as well. Regards, Doug dh...@ucar.edu Software Engineer IV UCAR - COSMIC, Tel. (303) 497-2611 On Wed, 10 Dec 2008, Alan W. Irwin wrote: > On 2008-12-10 15:32-0700 Doug Hunt wrote: > >> Hi Alan: >> >> I've got perl/PDL versions of examples 28, 29 and 30 checked in. >> Their psc output is identical to the examples/c version. >> >> They require yet another version of PDL-Graphics-PLplot, version 0.45. > > I have made the corresponding PLplot build-system changes (revision 9084). > > Here is the latest ctest result for PDL-Graphics-PLplot, version 0.45 > on my 64-bit machine. > > perl > Missing examples : > Differing examples : 02 23 27 > > I am really happy to see that empty "Missing examples" list. That represents > a substantial amount of work by you which is much appreciated. > >> >> Thanks for the pointer to 'ndiff', this will be useful for my regular work! >> >> As to the differing examples, for 02 there was some 32/64 bit trouble that >> you had--was your 'x02.pl -dev psc' output generally consistent with the >> correct 'x02c -dev psc' output and just off by a few decimal places, or was >> it wildly in error? Unfortunately, I don't have a good 64 bit machine >> handy to try it myself. > > Here is a typical diff stanza: > > 1162c1162 > < 1.0000 0.0745 0.0745 C Z > --- >> 0.9961 0.0745 0.0745 C Z > > There are 20 of these differences with the maximum R, G, or B colour changed > from 1.0000 to 0.9961 for the pdl version. There are also some maximum R, > G, or B colours still left at 1.0000 in the pdl version. The c version has > no 0.9961 colours. > >> >> I'm having trouble getting my hands around example 23--I can't get any of >> the 'c' examples to give correct comparison output except 'xwin'. I get >> some bogus or missing characters for all other driver types. Do you have >> any hints as to how to which 'c' example you use for comparison and how >> to get it to work correctly? My plplot installation may be missing >> something required to get all the character sets to work. > > fontconfig is essential for managing Linux fonts > in an intelligent way so make sure that package is installed. After that > run cmake with the -DBUILD_TEST=ON option and after the "make" command run > > ctest -R '_c$|perl|compare' > > The '_c$' ctest runs all the C examples with -dev psc, the 'perl' ctest runs > all the PDL examples with -dev psc, and the 'compare' ctest compares them. > > After the above ctest command, run > > less Testing/Temporary/LastTest.log > > to see details of the ctests including the summary output I gave in the > first paragraph of this post. > > Here are the sizes of the example 23 results > > -rw-r--r-- 1 software software 301933 2008-12-10 22:48 x23c.psc > -rw-r--r-- 1 software software 244809 2008-12-10 22:48 x23pdl.psc > > when I checked with diff, it turns out x23pdl.psc is missing pages 12 to 16, > but the first 11 pages are fine. > >> >> Finally, example 27 (after your fix) seems to compare correctly with >> 'ndiff'. I took a look at it and did not see anything incorrect in the >> perl/PDL code. > > Here is what I get with "ndiff -relerr 0.01" > > 6c6 > < %%CreationDate: Wed Dec 10 22:48:07 2008 > --- field 5 >> %%CreationDate: Wed Dec 10 22:48:19 2008 > ### Maximum relative error in matching lines = 4.29e-03 at line 11279 field 8 > > If I set the -relerr value to a smaller value such as 0.0001 then lots of > differences show up. > > As I remarked before, that maximum relative error of 4.29e-03 is rather high > (most other PDL examples match exactly with no differences at all) so I > assumed there was some precision loss for the bindings exercised by example > 27 or in example 27 itself. If your maximum ndiff rel error is 0., (in > which case diff would show no differences at all) then it appears we might > have another 32 bit/64-bit issue. But if the maximum relative error > delivered > by ndiff is non-zero for you as well, then I would look for precision loss. > > In sum, 02 might be a 32/64 bit issue, but that needs confirmation by others > with 32 and/or 64-bit platforms to make sure it is not a coincidence; 23 > needs the last 5 pages of the C example implemented in PDL but is otherwise > fine; the jury is still out on 27; and everything else is perfect. > > 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). > __________________________ > > Linux-powered Science > __________________________ > ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. 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