Make tickmarks the same length for both axes in GR 2D plots

[daschw]

Avoid too short ticks for one axis in very wide or narrow plots. This changes

plot(rand(10), size=(200, 400))

from

to

and

plot(rand(10), size=(600, 100))

from

to

[codecov]

Codecov Report

Merging #3659 (458d72b) into master (0550033) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3659      +/-   ##
==========================================
+ Coverage   63.83%   63.91%   +0.08%     
==========================================
  Files          28       28              
  Lines        6923     6925       +2     
==========================================
+ Hits         4419     4426       +7     
+ Misses       2504     2499       -5     

Impacted Files	Coverage Δ
src/axes.jl	85.23% <100.00%> (+0.48%)	⬆️
src/Plots.jl	31.42% <0.00%> (ø)
src/examples.jl	61.76% <0.00%> (ø)
src/animation.jl	38.20% <0.00%> (ø)
src/utils.jl	52.62% <0.00%> (+0.08%)	⬆️
src/recipes.jl	58.21% <0.00%> (+0.22%)	⬆️
src/layouts.jl	68.48% <0.00%> (+0.26%)	⬆️

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[BeastyBlacksmith]

Thats definetly an improvement, I would argue that the ticklength should be the same irrespective of the size of the window.
For example are the ticks on the second figure much longer than on the first

[isentropic]

Oh my god, this been bothering me since forever. I could never get it fixed myself

[isentropic]

looks really good to me

[isentropic]

I actually think it should be like

max(ticksize_x_axis, ticksize_y_axis)

where ticksize_y_axis is the old way of calculating it. So it would scale as before

[daschw]

OK, how about this?

[isentropic]

I think it looks a little to long compared to pyplot, maybe scale down by factor of 1.25 or 1.5?

[isentropic]

Overall, whatever you decide i support it. This is already much better than before

[daschw]

Thanks for the feedback!
next suggestion:

[isentropic]

This looks perfect to me.