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https://github.com/MakieOrg/GeoMakie.jl
Geographical plotting utilities for Makie.jl
https://github.com/MakieOrg/GeoMakie.jl
Last synced: 12 days ago
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Geographical plotting utilities for Makie.jl
- Host: GitHub
- URL: https://github.com/MakieOrg/GeoMakie.jl
- Owner: MakieOrg
- License: mit
- Created: 2019-08-04T11:06:51.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-09-17T20:25:58.000Z (about 2 months ago)
- Last Synced: 2024-09-18T00:57:25.579Z (about 2 months ago)
- Language: Julia
- Homepage: https://geo.makie.org
- Size: 518 MB
- Stars: 166
- Watchers: 7
- Forks: 24
- Open Issues: 65
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# GeoMakie
## Geographic plotting utilities for Makie.jl 
[](https://geo.makie.org/stable)
[](https://geo.makie.org/dev)
This package is **in development**, and may break often. You can install it from the REPL like so:
```julia
]add GeoMakie
```
To check the version, run:
```julia
julia> ]
pkg> status GeoMakie
```
To use, simply type `using GeoMakie` into the REPL. You will also have to include the backend of your choice - we suggest `using GLMakie` for interactive use and `using CairoMakie` for PDF or SVG output.
## Quick start
The main entry point to GeoMakie is the function `GeoAxis(fig[i, j]; kw_args...)`. It creates an axis which accepts nonlinear projections, but is otherwise identical in usage to Makie's `Axis`.
Projections are accepted as [PROJ-strings](https://proj.org/operations/projections/index.html), and can be set through the `source="+proj=latlong +datum=WGS84"` and `dest="+proj=eqearth"` keyword arguments to `GeoAxis`.
```julia
fig = Figure()
ga = GeoAxis(
fig[1, 1]; # any cell of the figure's layout
dest = "+proj=wintri", # the CRS in which you want to plot
)
lines!(ga, GeoMakie.coastlines()) # plot coastlines from Natural Earth as a reference
# You can plot your data the same way you would in Makie
scatter!(ga, -120:15:120, -60:7.5:60; color = -60:7.5:60, strokecolor = (:black, 0.2))
fig
```
As you can see, the axis automatically transforms your input from the `source`
CRS (default `"+proj=longlat +datum=WGS84"`) to the `dest` CRS.
You can also use quite a few other plot types and projections:
```julia
fieldlons = -180:180; fieldlats = -90:90
field = [exp(cosd(lon)) + 3(lat/90) for lon in fieldlons, lat in fieldlats]
img = rotr90(GeoMakie.earth())
land = GeoMakie.land()
fig = Figure(size = (1000, 1000))
ga1 = GeoAxis(fig[1, 1]; dest = "+proj=ortho", title = "Orthographic\n ")
ga2 = GeoAxis(fig[1, 2]; dest = "+proj=moll", title = "Image of Earth\n ")
ga3 = GeoAxis(fig[2, 1]; title = "Plotting polygons")
ga4 = GeoAxis(fig[2, 2]; dest = "+proj=natearth", title = "Auto limits") # you can plot geodata on regular axes too
surface!(ga1, fieldlons, fieldlats, field; colormap = :rainbow_bgyrm_35_85_c69_n256, shading = NoShading)
lines!(ga1, GeoMakie.coastlines())
image!(ga2, -180..180, -90..90, img; interpolate = false) # this must be included
poly!(ga3, land[50:100]; color = 1:51, colormap = (:plasma, 0.5))
poly!(ga4, land[22]);
fig
```
See the documentation for examples and basic usage!