On 2009-01-06 15:42-0000 Andrew Ross wrote: > > Example 14 has traditional been excluded from the non-interactive tests > since it outputs 2 files, and you can only specify one file on the > command line using the -o option. With a judicious redirection of stdin > it is possible to work round this. I've implemented this for all > languages so example 14 is now part of the standard ctest suite. As a > consequence I've found and corrected several differences between > implementations. This has brought 2 issues to light > > 1) In order to get this to work for devices which produce single pages > (e.g. png) I've had to modify the C version to call plgfam on stream 1 > and then plsfam on stream 2 with the read parameters. This works fine, > except that the command line option -fflen which sets the number of > digits to use for the family page number has no API equivalent that I > can find. It is not part of plgfam / plsfam which it probably should be. > This means that the file names for the second stream are things like > x14ac1.ps rather than x14c01.ps. As a result of this I've not yet > propagated the plgfam / plsfam changes to other languages.
I agree the fflen information should be part of plgfam / plsfam. But for now, couldn't you use plsetopt? > > 2) A wider question is if and how command line options should be passed > on to subsequent streams. It might be possible to call plparseopts with > the second stream to re-parse the command options, but this would > results in both streams having the same output name. This is going to > depend on the application on a case-by-case basis I suspect, but we > should at least supply the user with the relevant plgxxx / plsxxx > functions to check and set anything set on the command line. Would it be straightforward to implement a -stream command-line option that means all subsequent options refer to the specified stream number? That would provide an elegant solution to the example 14 issue with, e.g., c/x14c -dev psc -o x14ac.psc -stream 1 -dev psc -o x14bc.psc 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 __________________________ ------------------------------------------------------------------------------ Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
