Re: [Plplot-general] Color map change, X axis at top and some more

[Alan W. I. <ir...@be...>]

Hi Roxo:

Since you are satisfied with the answer you have discovered for
your question 1, I will now move on to your further questions.

On 2015-08-31 20:10-0300 Fernando M. Roxo da Motta wrote:

> ==========================8<--------  Question 2 -----------------
>
>  Another change to the code is some calls to 'plspal0'.   What I
> understand is that if the call happens before 'plinit' the desired
> palette becomes active.  The extent I have tried if I call the routine
> after 'plinit' the result seems to me to be unpredictable.  The
> example x16f.f90 calls it many times, ever followed by a call to
> 'pladv'.  I tried that but does worked.  What should be the call
> sequence to change the color map 0?

See example 16 for a correct way to call plspal0 to set up the colour
palette for the next page.  In this case pladv is used to start the
next page.  But note that a call to plenv implicitly calls pladv so
there is no need for an extra pladv call if your plspal0 call is
followed by a call to plenv rather than pladv.

>
> ==========================8<--------  Question 3 -----------------
>
>  This one is just to confirm if I understood correctly.  Everytime a
> plot is finished (whatever it means) the program holds and wait for an
> interaction, usually the mouse button 3 (rightmost) releases the code
> to go on.   While waiting one can resize and do some other stuffs
> depending on the driver used to plot.   If I use 'plspause(.FALSE.)'
> the program will not hold, with the price of no interaction with the
> graphic.  Is it correct?

Yes.  You can also use the command-line option "-np" to put no-pause
mode into effect.


> ==========================8<--------  Question 4 -----------------
>
>  If I understood correctly, the end of page is reached when the
> program reach a 'pleop', a new 'plenv', or some others calls.  What are
> the calls that trigs the EOP?

I don't think I can give you a complete list, but pladv is one such
call (which is the reason why plenv is also one of them since it
implicitly calls pladv).  It's possible plbop is another, but I
suggest you look at our examples and also experiment to find out. The
reason why starting a new page generally finishes the old page is
simply to make PLplot more convenient/flexible to use.

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).
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Linux-powered Science
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