[Octave-bug-tracker] [bug #39393] plotyy log scale results in linear ticks

[Ronald]

Follow-up Comment #2, bug #39393 (project octave):

Hello Rik,

Thank you for pointing out the "@semilogx" option for me. This does indeed do
what i need. However the original bug is still valid.

Octave should threat XScale like both Matlab and gnuplot threat it. Which is
that XTick, XTickLabel and Xminortick values should be updated when XScale
changes value.

In Matlab there seems to be no change in behavior between

[ax, h1, h2]=plotyy(1:100,1:100,1:100,(1:100)/2)
set(ax(1),'XScale','log');
set(ax(2),'XScale','log');


and

 [ax, h1, h2]=plotyy(1:100,1:100,1:100,(1:100)/2, @semilogx, @semilogx)


In Matlab (2012b version):

[ax, h1, h2]=plotyy(1:100,1:100,1:100,(1:100)/2);
get(ax(1),'XTick')
ans =

     0    10    20    30    40    50    60    70    80    90   100
get(ax(1),'XTickLabel')
ans =
0  
10 
20 
30 
40 
50 
60 
70 
80 
90 
100
get(ax(1),'Xminortick')
ans =
off
set(ax,'XScale','log')
get(ax(1),'XTick')
ans =
     1    10   100
get(ax(1),'XTickLabel')
ans =
0
1
2
get(ax(1),'Xminortick')
ans =
on


In Matlab when XTickmode=manual, only the Xminortick changes when XScale
changes. XTick values and XTickLabel remain unchanged.


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