Thanks for the clarification. It would be helpful in the documentation on
plspage to state exactly
what parameters can be set for what drivers and, if a particular parameter
cannot be set by plspage,
where to go to set the parameter. plplot is a nice package but the
documentation could use some work.
-- Thanks, David
On 11/14/09 12:35 PM, Alan W. Irwin wrote:
> On 2009-11-13 22:32-0500 David Sagan wrote:
>
>> Hello:
>>
>> I am using plplot5.9.5 on Linux [Scientific Linux SL release 4.5
>> (Beryllium)]. I am not able to vary
>> the window size for tk when I run the x31c.c example. I am trying to
>> do this by changing the xleng1
>> and xleng2 variables and recompiling. The X window works fine. It is
>> just tk that is the problem. I
>> am always getting a very large window with the same width as the
>> screen. Anyone has any suggestions?
>>
>> Looking at this with a debugger, I see that launch_server in tk.c
>> never uses the window size info
>> from plspage! I can get around this by using plsetopt("geometry",
>> geom) but this definitely lookks
>> like a bug.
>
> I wouldn't call this a bug. Instead, by historical design our device
> drivers have quite a bit of freedom about how they interpret plspage. To
> quote from
> http://plplot.sourceforge.net/docbook-manual/plplot-html-5.9.5/plspage.html,
>
>
> "Not all parameters are recognized by all drivers and the interpretation is
> device-dependent."
>
> For example, in the -dev tk case, if you look at opt-geo in plargs.c, there
> is a remark that "The TK driver uses the geometry string directly" with
> appropriate code to deal with that case. I am pretty sure that -dev tk was
> historically implemented to take advantage of the plspage freedom to
> specify
> geometry a different way because -dev tk is based on X, and X has an
> extremely general way to interpret geometry strings (see man X). Until
> recently (revision 10478) the plplot interpretation of geometry was much
> more limited, but now it also tries to emulate the generality of the X
> interpretation (e.g., with negative offsets allowed). So eventually, we
> will probablh want to switch to the plplot interpretation for -dev tk as
> well. Until then, however, you have found the correct workaround. With
> -dev
> tk, plspage is not an effective way to set geometry. Instead, use the
> command-line option -geometry or use plsetopt to specify geometry. Both
> those result in opt_geo getting called which implements the special way of
> setting geometry for -dev tk.
>
> 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
> __________________________
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