[Kmatplot-general] Kmatplot, bugs and wishes

[Oleg Z. <O.V...@in...>]

Dear Kamill,

thank you for your very interesting project kmatplot. Do you plan to develop
it further? It has some evident advantages in comparison with others due to
wizard and convenient interface, with excellent 3D plotting, which is better
than in an analogous Scigraphica. The idea of integration with Octave is
 good, but, IMHO, scientific python has more powerful library. Here I present
 some bugs, found in version 0.4, and some wishes.

Bugs:

1. When I input axes labels with indices, they are shown correcly in the
dialog window, but not on the plot. Fortunately, at the panel below among
axes options I has an access to the HTML string; it is seen, that commands
<sub>...</sub> and <sup>...</sup> are missed. They can be edit manually, of
course, but similar solution does not exist for labels not attached to axes,
since in this case HTML  string is not accessible. The idea to edit *.kmp
file looks bad.

2. Usage greek letters is very important, but, when I print plot in *.ps
 file, all greek symbols not seen. Note, in saving in gif and other bitmap
 format all of them are successfully  seen.

3. If I use non-square matrix for surface plot, program died silently with
segmentation fault. Or non-quare matrix are not supported? Note, that in the
context help matrices MxN size are mentioned. In any case, program inform
about problem rather than die.

4. When kmatplot is started in some (working) directory, open file dialog
starts with the working directory. But import data dialog starts with my home
directory, which is highly inconvenient! (should be working directory!)

Wishes (! for most important):

1.(!) Import data from other format rather than octave's. At least to
 describe a custom input format, which can be prepared any C/fortran program

2.(!) Options in ps printing, like possibility to include some fonts into ps
file,  different postscript levels, if possible; direct export into eps.

3. Simple possibility to smooth/interpolate data (e.g. by splines), in each
direction (if surface) independently.

4. Optional grid on the surface, not related to the initial grid of data
matrix. Non-equidistant grid, e.g. if axes with log scales.

5. Plotting intermediate minor tics on log scaled axes, like
1 2,4,6,8,10,20,40,...
with optional labelling

6. (!) Plotting surfaces from rectangular (not square) matrix.

Best regards,

Oleg Zhirov
zh...@in...

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