[Octave-bug-tracker] [bug #61088] opengl renderer - render warning repetition, command window behavior

[Nicholas Jankowski]

Update of bug #61088 (project octave):

                Severity:              3 - Normal => 2 - Minor              
                 Release:                   6.3.0 => 6.4.0                  
                 Summary: infinite warning loop - opengl renderer - data
greater than float capacity => opengl renderer - render warning repetition,
command window behavior

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Follow-up Comment #5:

updating that something similar came up again in bug #39243 and bug #61591.  

running the following triggers similar warning behavior:


>> xdata = cosd (0:60:360);
>> ydata = sind (0:60:360);
>> h = patch (xdata, ydata, 'b', 'marker', 's'); %%draws hexagon
>> set (h, 'xdata', xdata(1:end-3))
>> warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
get(h,'xdata'), get(h, 'ydata')
ans =

   1.0000   0.5000  -0.5000  -1.0000

ans =

        0
   0.8660
   0.8660
        0
  -0.8660
  -0.8660
        0
>> set (h, 'ydata', ydata(1:end-3)  %%figure renders 4pt trapezoid, warnings
cease


Note the warning appears after the >>, which doesn't reappear until the next
typed command as every figure interaction triggers the warning repetition
until the condition is fixed. (no more warnings after the ydata set command)

the warning is also triggered when creating a mismatched figure (which errors
in matlab), but ...

>> xdata = cosd (0:60:360);
>> ydata = sind (0:60:360);
>> h = patch (xdata, ydata(1:end-1), 'b', 'marker', 's');
>> warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
get(h,'xdata'), get(h, 'ydata')
ans =
   1.0000
   0.5000
  -0.5000
  -1.0000
  -0.5000
   0.5000
   1.0000

ans =
        0
   0.8660
   0.8660
        0
  -0.8660
  -0.8660

>> h = patch (xdata, ydata, 'b', 'marker', 's');
>> warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.
>> get(h,'xdata'), get(h, 'ydata')
ans =
   1.0000
   0.5000
  -0.5000
  -1.0000
  -0.5000
   0.5000
   1.0000

ans =
        0
   0.8660
   0.8660
        0
  -0.8660
  -0.8660
        0

>> warning: opengl_renderer: x/y/zdata must have the same dimensions.  Not
rendering.


Even after overwriting h, the 'every interaction' warning persists.  maybe
this is just my misunderstanding of how figures work. I understand adding
another plot to that figure wouldn't clear the problem creating the warning,
but I thought overwriting h should. or does the invalid plot still exist
there, just no longer named h?

retitling with a more accurate description and removing tie to specific opengl
warning

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  <https://savannah.gnu.org/bugs/?61088>

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