rudimentary tick positions

[Shai Ayal]

On Feb 5, 2008 4:00 PM, Michael Goffioul <michael.goffioul at gmail.com> wrote:
> On Tue, Feb 5, 2008 at 6:39 AM, Shai Ayal <shaiay at gmail.com> wrote:
> > Well, we already have get_axis_limits in graphics.cc which attempts to
> > find the "nicest" limits, So the limits are probably "nice" by the
> > time we get to calc_ticks. However I will look at them to see that
> > they are "compatible" in the sense that they both agree on the meaning
> > of "nice"
>
> The auto-scaling should be aware of the current tick spacing, otherwise
> you won't get nice results. For instance, look at the following screenshot
> obtained with "plot(rand(1,100))". As you can see below, the xlim should
> have been extended to [0,100] and ylim to [0,1]. OTOH, if limits mode
> were manual, then the tick arrays should not have contained out-of-bounds
> ticks (xticks/yticks should not contain 0 and yticks should not contain 1).
>
> octave.exe:10> get(gca, 'xlim')
> ans =
>
>      1   100
>
> octave.exe:11> get(gca, 'ylim')
> ans =
>
>    0.020000   0.980000
>
> octave.exe:12> get(gca, 'xtick')
> ans =
>
>      0    20    40    60    80   100
>
> octave.exe:13> get(gca, 'ytick')
> ans =
>
>    0.00000   0.20000   0.40000   0.60000   0.80000   1.00000
>
I'll look into it, hopefully tomorrow

Shai