| Name | xproj JSON |
| Version |
0.0.1
JSON |
| download |
| home_page | None |
| Summary | Xarray extension for projections and coordinate reference systems |
| upload_time | 2024-12-18 13:53:11 |
| maintainer | xproj contributors |
| docs_url | None |
| author | Benoît Bovy, Scott Henderson |
| requires_python | >=3.10 |
| license | Apache-2.0 |
| keywords |
xarray
gis
crs
proj
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
|
| coveralls test coverage |
No coveralls.
|
[](https://github.com/benbovy/xproj/actions/test.yml?query=branch%3Amain+event%3Apush)
[](https://app.codecov.io/gh/benbovy/xproj?branch=main)
# XProj
Xarray extension for projections and coordinate reference systems.
*Current development status: experimental, proof-of-concept.*
## Usage
See the notebooks in the "examples" folder.
- [Demo](https://nbviewer.org/github/benbovy/xproj/blob/main/examples/demo.ipynb)
- [Interoperability with 3rd-party Xarray extensions](https://nbviewer.org/github/benbovy/xproj/blob/main/examples/xarray_geo_extensions.ipynb)
## Goals
- Provide to Xarray geospatial extensions a set of convenient tools for dealing
with coordinate reference systems (CRSs) in a uniform & flexible way.
- Prevent duplicating CRS-specific logic (e.g., parse, reset, formatting,
checking equality, etc.) in each extension ; put it together into one reusable
package instead (i.e., a lightweight Xarray extension mostly built on top of
[pyproj](https://pyproj4.github.io/pyproj/stable/)).
- Provide a common end-user API for handling CRS via `.proj` Xarray accessors.
- Leverage recent Xarray features such as custom indexes. Easily compare,
combine or align Xarray datasets or dataarrays based on their CRS (via
`CRSIndex`).
- Consolidate the Xarray geospatial ecosystem (towards better interoperability).
## Non-Goals
- Being strongly opinionated on how CRS and other information like spatial
dimensions should be represented as metadata in Xarray objects and/or in
Xarray supported I/O formats. This is left to other Xarray extensions and
format specifications (e.g., GeoZarr, GeoTIFF, GeoParquet, etc.).
- Provide a common set of tools (implementations) for re-projecting data. This
highly depends on the data type (i.e., raster, vector, etc.) or application
and it is best handled by other Xarray extensions. We also see XProj
potentially as a lightweight dependency common to those other extensions so we
want to restrict XProj's dependencies to the minimum (i.e., Xarray and
PyProj).
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