On Jun 27, 2006, at 5:35 PM, Derek Lamb wrote:
Well, not that I can't get anything done, just that it was more
annoying than I had the patience for at the time I tried to learn.
For example:
use PDL::Graphics::PLplot;
$w=new PDL::Graphics::PLplot(DEV=>'xwin');
$x=sequence(10);
$y=$x*$x;
$w->xyplot($x,$y,PLOTTYPE=>'LINE'); ##nothing happens
$w->xyplot($x,$y,PLOTTYPE=>'LINE'); ##now it makes the plot
##and every new xyplot command has to be entered twice
$w->close; ##nothing happens until I click on the window and then
press 'enter'
I don't have those problems if I write to a png, and considering
that >95% of my plotting is to xwin, I stopped fiddling with it.
And, admittedly lazily, put off contacting the author until I could
see if it was a PLplot issue or a PDL::Graphics::PLplot issue.
Also, it's apparent that there are many many low-level functions,
which is great, but I can't use them (again, lazily, because I
haven't read the main PLplot docs) if all I know about them is
"info not available, *** does not process bad values." This is on
my personal list of PDL todos, "Learn PLplot and write some more
docs for it", I just haven't done it yet.
I believe that most of the problems you are experiencing are due to
the xwin driver and not PLplot itself, as you've observed by using
the png driver instead. On linux systems you are probably better off
using the gnome canvas driver ("gcw") and on OS-X systems you should
consider the aquaterm driver ("aqt"). For better or worse, these
drivers have been developed more recently and are more actively
maintained than the xwin driver.
The low level functions are pretty are the same as those in the
PLplot manual, with some of the variables shuffled for the benefit of
PDL::PP so the PLplot manual itself is pretty helpful. Just remember
that PDLs come before all the other variables.
That said, I can see that PDL/PLplot might not be the easiest
software to use, so I'd be happy to help with a manual/documentation.
best,
-Hazen
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