mapbox / mapbox/tilejson-spec

Document x y and z values

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Description

Currently, all that the specification has to say about the x, y and z URL parameters is

> {z}, {x} and {y}, if present, are replaced with the corresponding integers

There is no specification of what *corresponding* means. The specification should probably either explicitly define how x, y and z are calculated from geographical coordinates, or link to another standard that specifies it.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the TileJSON specification text covering the x, y and z URL parameters, then identify the authoritative coordinate standard or definition for their correspondence. Done means the specification either defines how geographical coordinates produce these integers or links to a standard that does so.

Written by the indexing model from the issue text.

Assessment

Tech stack
json
Domain
documentation
Issue type
Documentation
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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