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extend ticks beyond major grid, to axis limits

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This commit is contained in:
Will Grant 2018-07-11 17:59:47 +10:00
parent dd434b89d2
commit 403b57c076
1 changed files with 21 additions and 5 deletions
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26
src/axes.jl
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@ -288,16 +288,32 @@ _transform_ticks(ticks::NTuple{2, Any}) = (_transform_ticks(ticks[1]), ticks[2])
function get_minor_ticks(axis,ticks)
axis[:minorticks] in (nothing, false) && !axis[:minorgrid] && return nothing
length(ticks[1]) < 2 && return nothing
ticks = ticks[1]
length(ticks) < 2 && return nothing
amin, amax = axis_limits(axis)
#Add one phantom tick either side of the ticks to ensure minor ticks extend to the axis limits
if length(ticks) > 2
ratio = (ticks[3] - ticks[2])/(ticks[2] - ticks[1])
elseif axis[:scale] == :none
ratio = 1
else
return nothing
end
first_step = ticks[2] - ticks[1]
last_step = ticks[end] - ticks[end-1]
ticks = [ticks[1] - first_step/ratio; ticks; ticks[end] + last_step*ratio]
#Default to 5 intervals between major ticks
n = typeof(axis[:minorticks]) <: Integer && axis[:minorticks] > 1 ? axis[:minorticks] : 5
minorticks = typeof(ticks[1][1])[]
for (i,hi) in enumerate(ticks[1][2:end])
lo = ticks[1][i]
minorticks = typeof(ticks[1])[]
for (i,hi) in enumerate(ticks[2:end])
lo = ticks[i]
append!(minorticks,collect(lo:(hi-lo)/n:hi))
end
minorticks
minorticks[amin .<= minorticks .<= amax]
#Duplicate major ticks as a hack to darken the major grid lines
#minorticks[map(x->!in(x,ticks),minorticks)]
end
# -------------------------------------------------------------------------