Specify digits in contour plot scale

[Christopher_Fisher]

@rafael.guerra

using Plots; pyplot()
x = y = .1:0.05:4
Z = sqrt.(x' .* y)
num = round(π, digits=2)
contourf(x, y, Z, colorbar_ticks=[num])

Hi Rafael. Thanks for your response. Strangely, this solution does not work when the Z dimension only has a single unique value. Here is an example:

using Plots

pyplot()

x = .1:0.05:2

y = .1:0.05:1

X = repeat(reshape(x, 1, :), length(y), 1)

Y = repeat(y, 1, length(x))

Z = fill(.655848484848, size(X))

p1 = contour(x, y, Z, fill = true, colorbar_ticks=[.65])

It is certainly an improvement because it does not have a long number, but is there a way to still show it somehow?