[Octave-bug-tracker] [bug #47974] Visual differences between gnuplot and OpenGL toolkits

[Dan Sebald]

Follow-up Comment #74, bug #47974 (project octave):

I'm attaching a new version of the patch that works (almost) for gnuplot 4.4.0
to present.  This also solves several bugs that we have yet to run across. 
Here is the test sequence I used to check behavior:


demo line 1
demo waterfall 1
kids = get(gca,'children');
set(kids(1),'marker','o');
set(kids(1),'linestyle','none');
set(kids(1),'markeredgecolor','b');
set(kids(1),'linestyle','-');
set(kids(1),'marker','none');
set(kids(1),'edgecolor','r');
set(kids(1),'marker','*');
set(kids(1),'markeredgecolor','flat');
set(kids(1),'linestyle','none');
set(kids(1),'marker','none');


I know this isn't perfect yet, but it is close.  It may affect things
elsewhere, but hopefully not too bad.  Here are the two things bothering me
still:

1) I don't understand exactly what markeredgecolor and markerfacecolor "auto"
means.  Is it supposed to get the color from its parent axes?  So, I just put
in some conditional tests for "auto" setting so that it appears to come out as
expected without really understanding it.  There may need to be some

strcmp (obj.markeredgecolor, "auto")

types of code shuffled around.

2) In gnuplot 4.4.0 I'm finding that the surface face color is yellow rather
than white.  I don't understand why, short of a bug in gnuplot 4.4.0.  So,
rather than try to fix this in the attached patch, I'd prefer to open a
separate bug report for the random surface color in gnuplot 4.4.0 and
investigate if there might be an alternative syntax to work around this issue.

(file #38589)
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Additional Item Attachment:

File name: octave-gnuplot_linestyle_bug47974-djs2016sep22.patch Size:12 KB


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