openstreetmap / openstreetmap/mod_tile
UTFGrid support
Nobody has claimed this yet.
- Dominant language
- C++
- Stars
- 318
- Forks
- 199
- PR merge metrics
- No merged PRs in 30d
Description
It would be great to support UTFGrid generation using renderd and mod_tile.
https://github.com/mapbox/utfgrid-spec
An example UTFGrid-enabled mapnik xml file is at https://gist.github.com/gravitystorm/5824793
I'd suggest that it's a per-layer option to also generate the UTFGrid at the same time as the png (or other raster) output, and expire them as a pair. However, I can see there being some (rare) usecases where you may wish to generate UTFGrids without a corresponding png output.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the renderd and mod_tile entry points alongside the UTFGrid specification and the example Mapnik XML. Clarify how per-layer generation should relate to raster output and expiry, including the case without PNG output; done means the chosen behavior is implemented and documented for both modes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100