mapbox / mapbox/mts-data-sync

Dropping features for `layer_size` by attribute

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Dominant language
JavaScript
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71
Forks
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Description

Hello,

When tile `layer_size` is reached (default `1250KB` and max `2500KB`) some features are dropped.
Is it possible to create a `mts-recipe.json` that can control which features are dropped?
I know that you can use `limit` the number of features with an expression, but it requires you to define a `number` of features instead of size (in KB).
Would it be possible to create an expression that would drop features when reaching the size limit?

i.e.
Drop features who have smaller values in attribute called "area".

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First steps

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Research direction

Start by reviewing the mts-recipe.json configuration and the layer_size and limit expression behavior described in the issue. Trace how tile size limits and feature attributes are handled, then verify completion by confirming that a recipe can control which features are dropped, such as features with smaller area values, when the size limit is reached.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data-engineering
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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