https://github.com/JuliaGeo/Proj.jl
Julia wrapper for the PROJ cartographic projections library
Science Score: 36.0%
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Repository
Julia wrapper for the PROJ cartographic projections library
Basic Info
Statistics
- Stars: 50
- Watchers: 11
- Forks: 10
- Open Issues: 9
- Releases: 28
Topics
Metadata Files
README.md
Proj.jl
A simple Julia wrapper around the PROJ cartographic projections library. This package has been renamed from Proj4.jl to Proj.jl.
Quickstart, based on the PROJ docs:
```julia using Proj
Proj.jl implements the CoordinateTransformations.jl API.
A Proj.Transformation needs the source and target coordinate reference systems (CRS),
or a single pipeline.
trans = Proj.Transformation("EPSG:4326", "+proj=utm +zone=32 +datum=WGS84")
The CRS can be a string or the CRS type, which also interfaces with GeoFormatTypes.jl.
Once created, you can call this object to transform points.
The result will be a tuple of Float64s, of length 2, 3 or 4 depending on the input length.
The 3rd coordinate is elevation (default 0), and the 4th is time (default Inf).
Here the (latitude, longitude) of Copenhagen is entered
trans(55, 12)
-> (691875.632137542, 6.098907825129169e6)
Passing coordinates as a single tuple or vector also works.
Note that above the latitude is passed first, because that is the axis order that the
EPSG mandates. If you want to pass in (longitude, latitude) / (x, y), you can set the
always_xy keyword to true. For more info see https://proj.org/faq.html#why-is-the-axis-ordering-in-proj-not-consistent
trans = Proj.Transformation("EPSG:4326", "+proj=utm +zone=32 +datum=WGS84", always_xy=true)
now we input (longitude, latitude), and get the same result as above
trans(12, 55)
-> (691875.632137542, 6.098907825129169e6)
using inv we can reverse the direction, compose can combine two transformations in one
inv(trans)(691875.632137542, 6.098907825129169e6) == (12, 55) ```
Note that, as described in https://proj.org/resourcefiles.html, PROJ has the capability
to use remote grids for transformations that need them. Unless you have manually set
the environment variable PROJNETWORK=ON or changed proj.ini, networking is
disabled by default. To enable from Julia, run `Proj.enablenetwork!().
Proj.networkenabled()can be used to check the setting, andProj.withnetwork` provides
a way to temporarily enable or disable it in a do-block. Note that it needs to be set
before creating a transformation, otherwise it will have no effect.
API documentation for the underlying C API may be found here: https://proj.org/development/reference/index.html
Owner
- Name: JuliaGeo
- Login: JuliaGeo
- Kind: organization
- Website: https://juliageo.org/
- Repositories: 32
- Profile: https://github.com/JuliaGeo
Geospatial packages for Julia
GitHub Events
Total
- Create event: 7
- Commit comment event: 4
- Release event: 2
- Issues event: 5
- Watch event: 2
- Delete event: 4
- Issue comment event: 8
- Push event: 10
- Pull request review event: 2
- Pull request review comment event: 1
- Pull request event: 11
- Fork event: 1
Last Year
- Create event: 7
- Commit comment event: 4
- Release event: 2
- Issues event: 5
- Watch event: 2
- Delete event: 4
- Issue comment event: 8
- Push event: 10
- Pull request review event: 2
- Pull request review comment event: 1
- Pull request event: 11
- Fork event: 1
Committers
Last synced: 9 months ago
Top Committers
| Name | Commits | |
|---|---|---|
| Martijn Visser | m****r@g****m | 129 |
| yeesian | n****n@g****m | 25 |
| Anshul Singhvi | a****i@g****m | 18 |
| Chris Foster | c****r@r****u | 14 |
| Chris Foster | c****f@g****m | 12 |
| dependabot[bot] | 4****] | 8 |
| Maarten Pronk | g****t@e****l | 8 |
| Andrew Smith | a****h@r****u | 7 |
| Mauro Werder | m****c@r****m | 5 |
| github-actions[bot] | 4****] | 4 |
| Alberto Mengali | d****d@g****m | 3 |
| Alex Gardner | 3****r | 2 |
| Fabian Gans | f****s@b****e | 1 |
| Julia TagBot | 5****t | 1 |
| Rafael Schouten | r****n@g****m | 1 |
| Simon Byrne | s****e@g****m | 1 |
| Tiem van der Deure | t****e@g****m | 1 |
| Sebastian Good | s****n@p****m | 1 |
| femtocleaner[bot] | f****] | 1 |
Committer Domains (Top 20 + Academic)
Issues and Pull Requests
Last synced: 6 months ago
All Time
- Total issues: 39
- Total pull requests: 84
- Average time to close issues: 9 months
- Average time to close pull requests: about 1 month
- Total issue authors: 20
- Total pull request authors: 18
- Average comments per issue: 3.97
- Average comments per pull request: 2.67
- Merged pull requests: 69
- Bot issues: 0
- Bot pull requests: 13
Past Year
- Issues: 2
- Pull requests: 11
- Average time to close issues: N/A
- Average time to close pull requests: 7 days
- Issue authors: 2
- Pull request authors: 5
- Average comments per issue: 2.0
- Average comments per pull request: 0.36
- Merged pull requests: 8
- Bot issues: 0
- Bot pull requests: 1
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- felixcremer (2)
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- AshtonSBradley (1)
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Pull Request Authors
- visr (36)
- asinghvi17 (13)
- dependabot[bot] (12)
- yeesian (6)
- github-actions[bot] (4)
- rafaqz (4)
- mauro3 (3)
- evetion (3)
- tiemvanderdeure (2)
- alex-s-gardner (2)
- JuliaTagBot (1)
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- c42f (1)
- sebastiang (1)
- femtocleaner[bot] (1)
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