No labels showing

[alejandrogiubel]

Bug Description
Map labels are not showing

Steps to Reproduce
Just use

final _futureTileProvider = PmTilesVectorTileProvider.fromSource(
  'https://demo-bucket.protomaps.com/v4.pmtiles',
);

VectorTileLayer(
  theme: ProtomapsThemes.lightV4(),
  tileProviders: TileProviders({
    'protomaps': snapshot.data!,
  }),
  fileCacheTtl: Duration.zero,
),

Expected Results
A map with labels

Actual Results

Code Sample

final _futureTileProvider = PmTilesVectorTileProvider.fromSource(
  'https://demo-bucket.protomaps.com/v4.pmtiles',
);

VectorTileLayer(
  theme: ProtomapsThemes.lightV4(),
  tileProviders: TileProviders({
    'protomaps': snapshot.data!,
  }),
  fileCacheTtl: Duration.zero,
),

josxha/flutter_map_plugins#48

[alejandrogiubel]

Hi @greensopinion any clue about this?

[greensopinion]

a couple of ideas:

1. have a look at your theme, and compare it to a theme that is working (what's different)
2. consider running in the debugger and set a breakpoint in some expressions https://github.com/greensopinion/dart-vector-tile-renderer/tree/main/lib/src/themes

some working examples: https://github.com/greensopinion/flutter-vector-map-tiles-examples

[PeterLeconte]

Looking again at josxha/flutter_map_plugins#48, are there any plans to add support for these expressions?

[greensopinion]

@PeterLeconte see the thread above, I've dropped a hint as to where to add support. You're welcome to contribute!

[Gabriel-Azevedo-Ferreira]

HI @greensopinion ,
I am using a custom vector tile and having a similar issue.

I am trying to debug and the issue seems related to this _occupyLabelSpaceAtOffset call.

When I comment it out I see the points I wish to see:

Otherwise the red dots won't show as they will be filtered out by _occupyLabelSpaceAtOffset.

The red dots are just "text-field": "\u2022", in the style.json.

Thank you so much and please let me know if I can help with more details, the specific data/example I am running.

---

I added some prints around that point, in case it's useful