Re: [Plplot-devel] Display problems when running "wish wish_standard_examples"

[Arjen M. <Arj...@de...>]

Hi Alan,

I will have a look at these issues. I am rather pleased that Cygwin is working nicely
for me now, even though there are a few idiosyncracies to avoid. The most perplexing
of these was that at some point I had to kill the wish process and that also killed the
Cygwin shell, so that I ended up in an ordinary DOS-box. I do not know how to reproduce
that situation and, honestly, I do not care to ;).

Anyway, I like the idea of making PLplot easier to use from a Tcl and Tk environment.

Regards,

Arjen

> -----Original Message-----
> From: Alan W. Irwin [mailto:ir...@be...]
> Sent: Friday, November 15, 2013 6:27 AM
> To: Arjen Markus; PLplot development list
> Subject: Re: [Plplot-devel] Display problems when running "wish
> wish_standard_examples"
>
> Hi Arjen:
>
> I forgot to mention that the configured wish_standard_examples(.in) script comments
> out some of the examples for the reasons given in the script.  But if you wanted to
> look (say) at the color issues (which I strongly encourage you to put on your agenda),
> then locally uncomment examples 2 and 24 (and for speed comment out all the other
> examples) in wish_standard_examples.in. After such a change, then re-running
> "make test_wish_standard_examples" in the build tree will automatically re-run
> cmake to reconfigure wish_standard_examples in the build tree with all your script
> changes, recompile any source files you have changed that are direct or indirect
> dependencies of the test, and then finally run that configured script. (By the way, feel
> free to modify wish_standard_examples.in (and other such interactive configured
> scripts that test some aspect of Tcl and friends) to have a configured option to greatly
> reduce the number of examples that are run in the interest of speed.  That option
> would be especially useful for your case where Tk on Cygwin is so slow.
>
> Anyhow, once you get the hang of working with these simple test targets that are set
> up with CMake's add_custom_command and add_custom_target commands, they
> are a real convenience for development and continued testing afterward to guard
> against bit rot.
>
> By the way, "bit rot" is a term I heard once from Maurice many years ago which I
> liked very much at the time, and which I have continued to use since. I define this
> term to refer to the case when the assumptions of a particular software unit that is
> unmaintained inevitably begin to no longer be true because of changes in other
> software.  (See http://en.wikipedia.org/wiki/Bit_rot and
> http://en.wikipedia.org/wiki/Software_rot for more general
> definitions.)
>
> So what I have been doing for the last week or so is dealing with bit rot that we have
> allowed to accumulate for the last decade in the Tcl, Tk, Itcl, Itk, and Iwidgets
> components of the PLplot build system and code.  In the future if we are careful with
> designing sufficiently general tests, then we can deal with each Tcl, etc., bit-rot issue
> immediately as revealed by the tests rather than waiting for a decade's worth of such
> bit-rot issues to accumulate.
>
> 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); the Time Ephemerides project (timeephem.sf.net);
> PLplot scientific plotting software package (plplot.sf.net); 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
> __________________________

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