3

Loading geojson via ajax in leaflet using bbox and How to add a bounding box filter to this leaflet WFS request? both answer how to request vector layer data within a leaflet map by the map's bounding box. However both answers discard the vector layer's data when refreshing, with no caching of the results. I foresee some kind of merging olddata and newdata arrays while removing duplicates and then redrawing the layer.

I found the leaflet-tilelayer-geojson plugin which creates a leaflet geojson layer from tiles of json, served from a request of URL http://{s}.somedomain.com/blabla/{z}/{x}/{y}.json, but the plugin has not been updated for leaflet 1.0

Is there a commonly accepted method/plugin for caching this data?

0

From the leaflet plugins page there seem to be 2 current plugins for vector tiles based on the Mapbox spec.

  • geojson-vt which slices the GeoJSON client-side
  • leaflet.VectorGrid which can take an external hosted protobuf source like https://free-{s}.tilehosting.com/data/v3/{z}/{x}/{y}.pbf, otherwise it will use geojson-vt as per above

Mapzen's Tangram is a Leaflet Plugin which also supports GeoJSON vector tile sources. Though the focus seems on style, you can add custom events to feature hover or click

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.