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Opened 2 years ago

Last modified 16 months ago

#18733 new enhancement

Add support for PROJ datum grid CDN

Reported by: sebastic Owned by: team
Priority: normal Milestone:
Component: Core Version:
Keywords: projection grid geotiff Cc:

Description (last modified by sebastic)

The josm Debian packages depends on proj-data for the grid files it provides (#14422).

With the release of PROJ 7.0.0 scheduled for March 2020, the proj-datumgrid repository which serves as upstream for the grids is deprecated in favor of the proj-data repo containing the grids in GeoTIFF format and who are provided by the new CDN. See ​PROJ RFC 4: Remote access to grids and GeoTIFF grids for details.

JOSM should probably add support for the CDN to fetch grids on demand when it needs them and they're not locally available.

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Change History (4)

comment:1 Changed 2 years ago by Don-vip

Keywords: projection grid geotiff added

comment:2 Changed 2 years ago by Don-vip

Description: modified (diff)

Thanks for the info! I have updated #2372 in order to support GeoTIFF first.

comment:3 Changed 2 years ago by sebastic

Description: modified (diff)

comment:4 Changed 16 months ago by Don-vip

CDN is live: ​https://cdn.proj.org/
File format is specified here: ​https://proj.org/specifications/geodetictiffgrids.html#geodetictiffgrids

Last edited 16 months ago by Don-vip (previous) (diff)

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