[Octave-bug-tracker] [bug #39243] OpenGL: change to {x, y}data does not update bar()

[Ben Abbott]

Follow-up Comment #5, bug #39243 (project octave):

I did some experimenting with patch ().  I didn't expect Matlab to work this
way.


h = patch ([0 1 0 0], [0 0 1 0], 'b');
xdata = get (h, 'xdata');
ydata = get (h, 'ydata');
set (h, 'ydata', ydata(1:3))
get (h, 'xdata')

ans =

     0
     1
     0

set (h, 'ydata', ydata)
get (h, 'xdata')

ans =

     0
     1
     0
     0

set (h, 'xdata', [xdata; NaN])
get (h, 'ydata')

ans =

     0
     0
     1
     0

get (h, 'xdata')

ans =

     0
     1
     0
     0

set (h, 'ydata', [ydata; NaN])
get (h, 'xdata')

ans =

     0
     1
     0
     0
   NaN


It appears that Matlab's set() and get() functions are doing something
special.

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