# Makie.jl - How to plot a colorlegend?
**URL:** https://discourse.julialang.org/t/makie-jl-how-to-plot-a-colorlegend/46132
**Category:** General Usage
**Tags:** question, plotting, makie
**Created:** [September 6, 2020, 7:08am UTC](https://discourse.julialang.org/t/makie-jl-how-to-plot-a-colorlegend/46132 "2020-09-06T07:08:42Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@yosuga](https://discourse.julialang.org/u/yosuga)
#### Post date: [September 6, 2020, 7:08am UTC](https://discourse.julialang.org/t/makie-jl-how-to-plot-a-colorlegend/46132/1 "2020-09-06T07:08:42Z")
I’m trying to plot a colorlegend when its colorrang is (::Float64,::Float64).
But this sample code doesn’t work.
```julia
using Makie
using FileIO
using LinearAlgebra
using AbstractPlotting
r = LinRange(-20, 20, 500); # our value range
ρ(x, y, z) = exp(-((x)^2 + (y)^2 + (z)^2)) # function (charge density)
# create a Scene with the attribute `backgroundcolor = :white`,
# can be any compatible color. Useful for better contrast and not killing your eyes with a white background.
scene = Scene(backgroundcolor = :white)
volume!(
scene,
r, r, r, # coordinates to plot on
ρ, # charge density (functions as colorant)
algorithm = :mip, # maximum-intensity-projection
colorrange = (0,0.5),
colormap = :blues,
transparency = true
)
update_cam!(scene, Vec3f0(1,1.5,1.0), Vec3f0(0))
scene[Axis].names.textcolor = :gray # let axis labels be seen on dark background
cm = colorlegend(
scene[end], # access the plot of scene
raw = true, # without axes or grid
camera = campixel!, # gives a concrete bounding box in pixels
# so that the `vbox` gives you the right size
width = ( # make the colorlegend longer so it looks nicer
30, # the width
540 # the height
)
)
scene_final = vbox(scene, cm) # put the colorlegend and the plot together in a `vbox`
save("test.png",scene_final)
```
```julia
MethodError: no method matching optimize_ticks(::Int64, ::Float64; k_min=4, k_max=8)
Closest candidates are:
optimize_ticks(::T, !Matched::T; extend_ticks, Q, k_min, k_max, k_ideal, granularity_weight, simplicity_weight, coverage_weight, niceness_weight, strict_span, span_buffer) where T at /Users/username/.julia/packages/PlotUtils/10ojB/src/ticks.jl:136
```
If colorrange = (0,0.5) → colorrange = (0,1.0), the code passes.
Is there a method to display a colorlegend with colorrange = (0,0.5)?
---
### Author:  [@sijo](https://discourse.julialang.org/u/sijo)
#### Post date: [December 8, 2020, 9:37am UTC](https://discourse.julialang.org/t/makie-jl-how-to-plot-a-colorlegend/46132/2 "2020-12-08T09:37:47Z")
Could it be that the working code was `colorrange = (0.0, 1.0)` rather than `colorrange = (0, 1.0)`?
I think Makie is just being picky with the types: using `colorrange = (0.0, 0.5)` works for me.