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

[Dan Sebald]

Follow-up Comment #52, bug #47974 (project octave):

Rik, here's a patch for the data aspect ratio (squashy-ness) of isosurface #1.
 I resisted the urge to yank all the code prior to is that uses
obj.dataaspectratio--that might lead to a bigger project.  gnuplot just
doesn't have the fine control on this that Octave is asking for--well not
easy, anyway.  Only setting the aspect ratio in xy or xyz is possible.  Try


demo isosurface
set(gca, 'dataaspectratiomode', 'auto');
set(gca, 'dataaspectratiomode', 'manual');
set(gca, 'dataaspectratio', [1 1 10]);
set(gca, 'dataaspectratio', [1 2 10]);


Well, you can see it sort of behaves as desired, but I'm not sure really.  The
issue with this originates from this line in the existing code:


    sz_str = sprintf ("set size %s %g, %g;\n", sz_str, pos(3:4));


So, even if I could fine tune sizing (and I'm not 100% sure on that), it
should probably wait until after


  pos = __actual_axis_position__ (h);


is cleared up with Ben.  In the mean time, what I attached might be a
temporary fix.

The border will have to be in another patch.  Border is another bit tricky
coding because I'm not quite sure where the annotated axes exist for a
particular view so the borders to remove may vary.


(file #37358)
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Additional Item Attachment:

File name: octave-gnuplot_aspect_ratio-djs2016jun02.patch Size:3 KB


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