Marker Text

[schuhbacca]

Hey all, wondering if there's a way to have custom textFields per marker? Or do I need to implement something custom? Thanks!

[josxha]

Yes, that's possible by utilizing the feature properties.

  final _points = <Feature<Point>>[
    const Feature(
      geometry: Point(Geographic(lon: 9.17, lat: 47.68)),
      properties: {'name': 'Marker 1'},
    ),
    const Feature(
      geometry: Point(Geographic(lon: 9.17, lat: 48)),
      properties: {'name': 'Marker 2'},
    ),
  ];

You can then use the name value by using this:

MarkerLayer(
  points: _points,
  textField: '{name}', // <- reads name property
  textAllowOverlap: true,
  iconImage: _imageLoaded ? 'marker' : null,
  iconSize: 0.15,
  iconAnchor: IconAnchor.bottom,
  textOffset: const [0, 1],
),

[schuhbacca]

Fantastic, I will give it a go later. I assumed it wasn't possible but I didn't really see an example in the documentation.
Would you be able to use this pattern for basically any of the properties in the layer?

[josxha]

Theoretically yes. This is part of the expression syntax that maplibre has. The only caveat is currently you can't assign a String like "{size}" to the non-String fields like the iconSize property.
But the full expression syntax is available when working with style layers directly.