# How do I flip the r-axis in polar plot?
**URL:** https://discourse.julialang.org/t/how-do-i-flip-the-r-axis-in-polar-plot/106022
**Category:** Visualization
**Tags:** plots
**Created:** [November 10, 2023, 1:07am UTC](https://discourse.julialang.org/t/how-do-i-flip-the-r-axis-in-polar-plot/106022 "2023-11-10T01:07:05Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@minetest2048](https://discourse.julialang.org/u/minetest2048)
#### Post date: [November 10, 2023, 1:07am UTC](https://discourse.julialang.org/t/how-do-i-flip-the-r-axis-in-polar-plot/106022/1 "2023-11-10T01:07:05Z")
I want to plot satellite track over a ground station, like how Gpredict and other ground station tool does it:
In that polar plot, for the r-axis, 90 degrees is at the center and 0 degrees is at the edge. In Julia its the other way, 0 is at the center and 90 is at the edge:
I want the plot to look like this, with 0 at the edge and 90 at the center:
I got that by subtracting the r-axis values from 90 degrees, something like this:
```julia
plot(azimuth[4149:4149+400], 90 .- elevation[4149:4149+400],proj = :polar, ylim=(0,90))
```
---
### Author:  [@mike.ingold](https://discourse.julialang.org/u/mike.ingold)
#### Post date: [November 10, 2023, 2:23am UTC](https://discourse.julialang.org/t/how-do-i-flip-the-r-axis-in-polar-plot/106022/2 "2023-11-10T02:23:24Z")
It looks like this might be possible using **Makie.jl** insteads of **Plots.jl** : see the example [on this page](https://docs.makie.org/stable/reference/blocks/polaraxis/) titled “Reoriented Axis”.
---
### Author:  [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)
#### Post date: [November 10, 2023, 11:44pm UTC](https://discourse.julialang.org/t/how-do-i-flip-the-r-axis-in-polar-plot/106022/3 "2023-11-10T23:44:10Z")
In `Plots.jl`, after the above-mentioned data flip transformation, we can deactivate the labeling of the radial axis and then manually annotate it:
```julia
using Plots; gr()
θ = range(0, 2π, 100)
rθ = 50 .+ 30*cos.(3*θ .- π/6).^3
plot(θ, 90 .- rθ, proj=:polar, c=:blue, yaxis=false, ylims=(0,90))
annotate!(zeros(3), 0:1/3:2/3, text.(string.(90:-30:30), 8, "Computer Modern"))
```
