mantao/Plots.jl
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Let abline plot outside extent

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This commit is contained in:
Gustavo Goretkin 2017-12-15 19:27:52 -05:00
parent 45e0aaacb4
commit d8a827b98e
1 changed files with 5 additions and 3 deletions
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8
src/recipes.jl
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@ -993,9 +993,11 @@ end
"Adds a+bx... straight line over the current plot, without changing the axis limits"
function abline!(plt::Plot, a, b; kw...)
xl, yl = xlims(plt), ylims(plt)
x1, x2 = max(xl[1], (yl[1] - b)/a), min(xl[2], (yl[2] - b)/a)
plot!(plt, x -> b + a*x, x1, x2; kw...)
xmin, xmax = xlims(plt)
span = xmax - xmin
xmin, xmax = (xmin - 10span, xmax + 10span)
f(x) = b + a*x
plot!(plt, [(xmin, f(xmin)), (xmax, f(xmax))]; x_extent_data = Float64[], y_extent_data = Float64[], kw...)
end
abline!(args...; kw...) = abline!(current(), args...; kw...)