On 2008-12-05 17:59-0700 Doug Hunt wrote: > Hi Alan: I just checked in fixes to x21.pl and a new x27.pl. > > As to your question below, I'm working on a 32 bit system, so this could be a > 32/64 bit bug.
Hi Doug: I have committed (revision 9057) a number of small changes relating to PDL::Graphics::PLplot version 0.44. In particular I have updated examples/perl/README.perldemos with your version, and then added a few more minor writing changes of my own. Those instructions work for me, and here are my resulting ctest compare results for PDL::Graphics::PLplot version 0.44 perl Missing examples : 28 29 30 Differing examples : 02 23 27 I have already commented on 02 (which requires testing by others to confirm it is a 32/64 bit issue). Also, the PDL example 23 is much shorter than the corresponding C version (and doesn't output the messages to the command line that the C version does) so I assume you haven't looked at that one yet. I highly recommend installing ndiff (a fuzzy diff implementation) for analyzing rounding issues that seem to occur, for example, in example 27. Here are the initial ndiff results I obtained for that example. ~/ndiff/install/bin/ndiff -relerr 0.01 plplot_test/x27c.psc \ plplot_test/x27pdl.psc 2c2 < %%BoundingBox: 52 59 552 729 --- field 5 > %%BoundingBox: 3c3 < %%%%%%%%%%%%%%%%%%%%%% --- field 1 > %%%%%%%%%%%%%%%%%%%%%%%%%%% 6c6 < %%CreationDate: Mon Dec 8 10:21:20 2008 --- field 5 > %%CreationDate: Mon Dec 8 10:29:02 2008 63186c63186 < 1326 3166 D 1285 3159 D 1246 3150 D 1206 3138 D 1167 3124 D S --- field 16 > 1326 3166 D 1285 3159 D 1246 3150 D 1206 3138 D 1167 3124 D ### Maximum relative error in matching lines = 4.29e-03 at line 11279 field 8 second file is short Notice how ndiff removes the rounding obfuscation so it is easier to spot other issues. I have just now put in a fix (revision 9058) for the short file and bounding-box issues. The ndiff results are now much better. [EMAIL PROTECTED]> ~/ndiff/install/bin/ndiff -relerr 0.01 plplot_test/x27c.psc plplot_test/x27pdl.psc 6c6 < %%CreationDate: Mon Dec 8 10:21:20 2008 --- field 5 > %%CreationDate: Mon Dec 8 10:48:14 2008 ### Maximum relative error in matching lines = 4.29e-03 at line 11279 field 8 That amount of rounding error is unusual for the PDL examples. I therefore suspect some bindings (or 27th example) precision issue such as using too low a precision (e.g., integers rather than floats) for some value or values. I look forward to testing more of your PDL::Graphics::PLplot updates as they occur, and I encourage others to do such testing as well. 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. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
