[Pkg-octave-devel] Plotting in octave

[Jan Vermeulen]

Hail!

According to what I've been reading from Debian's website, this group is 
where all queries dealing with Octave, OctPlot and Octaviz (relating to 
Debian, of course) comes to. Is the same true for PLPlot-Octave?

I've been experiencing problems and I honestly don't know where I can 
find out who I'm supposed to talk to.

GNUplot is dead slow. So I began looking at OctPlot, Octaviz and PLPlot. 
None of these packages have been implemented in Octave 2.9 yet, that's 
the first and main problem. Is this an issue from the Debian package 
side (i.e. it can be fixed here) or is it the developers of the packages 
that have not yet release versions capable of running on Octave 2.9?

I can't get PLPlot to work in Octave 2.1. After placing 
LOADPATH="/usr/share/plplot_octave//:" in my .octaverc, a call to plot 
results in `Requested device xwin not available'. I've not had the 
energy to try and find a solution to this, but initial results from 
Google were not promising. In addition: once Octave has been run and an 
attempt to use plplot had been made, my .octaverc file disappears and 
every time a run Octave from then on results in the LOADPATH above being 
executed. Rebooting my machine seemed to have cleared up the problem. 
Saving the PLplot plot to a file (I used PostScript), showed that the 
plot generated was turned CCW 90 degrees and the bottom part (x-axis) 
was sliced off.

Octaviz works, in a manner of speaking, but the plots it draws are 
distorted.

OctPlot seems to work (and much faster the GNUplot), but I have not been 
able to successfully draw a mesh, when executing 
x=1:10;y=1:10;mesh(x,y), I get the following output:

error: no such figure
error: evaluating if command near line 32, column 3
error: called from `figure' in file `/usr/lib/octplot/figure.m'
error: evaluating if command near line 19, column 3
error: called from `__pl_init' in file 
`/usr/share/plplot_octave/support/__pl_init.m'
error: evaluating assignment expression near line 21, column 8
error: called from `__pl_mesh' in file 
`/usr/share/plplot_octave/support/__pl_mesh.m'
error: called from `mesh' in file `/usr/share/plplot_octave/mesh.m'

Are there any recommendations/solutions/flames from anyone? Many 
apologies if this is considered spam to the list... Let me know where 
issues like this should go and I will only trouble you with 
Debian/Octave issues in future.

Regards

-- 
Jan Vermeulen
The Extremist
23137216

"God has such a deep reverence for our freedom that he'd much rather have us freely go to Hell, 
than be compelled to go to Heaven"
                                                ----------Desmond Tutu
                        Beyers Naude Memorial Lecture 2003 (15 August)