CODEWITHSUNDEEP
javascriptleafletgeojson
Maciej Wojcik
Maciej Wojcik

Reputation: 2171

Updating data in Vector Tiles Leaflet geojson-vt

My question is about updating the data in leaflet. Let's assume that we have geojson which we are changing into vector tiles using geojson-vt.js and displaying it on the leaflet map. Similiary as there: geojson-vt example

Then i'm receiving an event / notifiaction that some linestring was changed, for example thise linestrings have a attribute color, which is using when displaying data, and this value has changed.

Then i want to update my map, but i dont want to recalculate, and redraw all tiles, but only this tiles where was change. How to do that?

Upvotes: 0

Views: 924

Answers (1)

IvanSanchez
IvanSanchez

Reputation: 19069

It cannot be done. geojson-vt only allows for creating new geojson-vt instances, not updating them. Updating data in the internal structures is too complicated, and doesn't give any big advantages. This also means it's not possible to get a list of changed tiles, or even a list of tiles containing the updated geometry.

If this is really critical for your application, consider studying the code for geojson-vt for yourself, and proposing a solution.

If you have a set of static features and a set of possibly-changing features, consider making separate holders for them.

Upvotes: 2

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