[Octave-bug-tracker] [bug #49260] gnuplot visual differences to OpenGL toolkit

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?49260>

                 Summary: gnuplot visual differences to OpenGL toolkit
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Mon 03 Oct 2016 01:53:31 PM PDT
                Category: Plotting with gnuplot
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

I ran dump_plot_demos today (10/31/16) to determine the state of the gnuplot
toolkit.  I don't think any of these are critical to the 4.2 release, but it
would be good to address them, particularly the regressions, at some point.


FUNCTION    DEMO #      ISSUE
errorbar    3,4         Four keys in legend rather than two

ezsurfc     1           Title too low

area        2           Superscript in title is truncated by position
onscreen

autumn      1           Lines which appear directly on an axis are not shown.
                        This should be controlled by the axis "layer"
property.
                        The default is "bottom" which means user drawn lines
                        should appear above the axes lines.
                        All of the demos which use rgbplot tend to have this
problem.

axis        3           "axis off" still shows box around axis

axis        9           X and Y axis lines appear in color, rather than
black.
                        This is associated with using a different "origin"
than
                        the default.  It is probably using the next linestyle
                        or something like that.

box         4           The property "boxstyle" = "back" is not implemented.

contour     3           The single contour is drawn with the last color in
the
                        colormap rather than the intermediate value (~128).

contourf    3           The filled contour is drawn with the last color in
the
                        colormap rather than the intermediate value.

fplot       1           The legend tag is transparent, rather than having a
                        solid white background.  I think this has been
reported
                        already.

fplot       3           Legend text which uses '@' has that character deleted
                        and the spacing of the following characters is messed
                        up.  There is special code to deal with the '@' char
                        in __gnuplot_draw_axes__.m, but it seems to be
failing.
                        This is a regression from 4.0.3.

legend      9           "legend hide" does not hide legend.  This is a
                        regression from 4.0.3.

legend      11          Greek text causes alignment of text to be off.

legend      13          Large number of keys in legend causes overlap of X
label

legend      18          Color patch missing from legend key for surface
object

legend      26          Legend not contained within axes box

legend      31          Long key text extends outside legend box

mesh        4           Title within axes box

scatter     1           Plotted MarkerSize is smaller than for OpenGl/Matlab

scatter     7           For the case of Random Color: 1 Point, the single
point
                        is in yellow (max of colormap) rather than a greenish
                        color.

slice       2           Fill color of mesh outside of central area is yellow,
                        rather than white or possibly transparent.

subplot     1           Titles and xlabels overlap








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