mapbox / mapbox/tile-count

Zero count with nonzero density

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#32 2 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
Stars
32
Forks
9
PR merge metrics
No merged PRs in 30d

Description

@miles-dev alerts me to a feature in

{ "zoom": 16, "x": 3987, "y": 28823 }

that has

{ "density": 3, "count": 0 }

even though a count of 0 should always also correspond to a density of 0.

Contributor guide

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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 by reproducing the reported case in tile-count using zoom 16, x 3987, and y 28823, then trace how it produces density 3 with count 0. Done means the reported tile no longer emits a nonzero density when its count is zero, with the existing behavior checked against the issue's JSON values.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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