Recherche on suitable packages for Equi7Grid v2.0

[bbauerma]

Let's collect candidate packages for the grid core package. We seek for packages that are ...

• living
• supporting common standards
• solving the already reported issues
• helping us to enable functions gathered in Collecting features and functions for Equi7Grid v2.0 #45

[sebhahn]

• https://github.com/cogeotiff/rio-tiler-mosaic
• https://github.com/developmentseed/mosaicjson-spec
• https://geoparquet.org/
• https://github.com/mapbox/mercantile

[bbauerma]

mercantile: databases, etc...
geoparquet: dataformat for vectordata, geojson
rio-tiler: mosaic from a bunch files which can overlap

[bbauerma]

as on outlook, here are OGC APIs:
https://ogcapi.ogc.org/
and the OGC nomenclature for DGGS, tiles, zones, and more:
https://docs.ogc.org/as/20-040r3/20-040r3.pdf

[bbauerma]

some more ideas from the initial meeting on 18.6.2024:
https://developmentseed.org/titiler/
Equi7 clone for NASA's equal area solution: https://github.com/measures-glance/glance-grids
very interesting, but archived in 2020: https://github.com/ceholden/stems
and of course https://github.com/TUW-GEO/geospade

[bbauerma]

titiler: tile server, etc; used by EODC for sigma0 datacube for visualisation

[sebhahn]

this seems to be a good candidate: https://databrickslabs.github.io/mosaic/index.html

[sebhahn]

seems to depend on pyspark

[bbauerma]

A very interesting recent development, kudos to @csaybar
https://github.com/IPL-UV/equi7grid_lite

[cnavacch-spire]

• https://github.com/digitalglobe/tiletanic
  • not useful, more tailored towards WMTS
  • not active anymore
• https://github.com/tilezen/mapbox-vector-tile
  • not useful, more tailored towards WMTS
  • limited functionality
  • active
  • big user community and many contributors
• https://github.com/developmentseed/morecantile
  • active
  • light-weighted
  • many contributors
  • follows OGC standards
  • very similar to geospade, but again tailored towards WMTS (zooming levels, quadtree etc.)

[sebhahn]

spatial indexing

• https://rtree.readthedocs.io/
• https://github.com/karimbahgat/Pyqtree
• https://geopandas.org/en/stable/docs/reference/sindex.html

[csaybar]

Maybe in an early release, but zero-copy methods for this look promising!
https://github.com/kylebarron/geo-index

[bbauerma]

we were just made aware of this new feature of GDAL, from a quick glance perfectly matching our use case:
GDAL Raster Tile Index

[bbauerma]

file based operations.
useful for reprojection tasks

[sebhahn]

tilematrix - https://www.ogc.org/standard/tms/
https://github.com/ungarj/tilematrix

[bbauerma]

realisation of the OCG terminology, slim and matching our case?
well documented and tested
developed by single guy in Vienna

[bbauerma]

the outcome of our latest meeting was:
let's us tryout these two packages, and start two git branches trying if they serve the collected needs:

1. https://github.com/ungarj/tilematrix
2. https://github.com/IPL-UV/equi7grid_lite