Expression to filter on feature geometry type

[jg-develop]

I have a geojson file which contains two types of feature, some "points" and some "LineStrings". I have created a SymbolLayer to render the features, but I only want to render the Points not the lines, so I am trying to filter, but I can't work out the filter expression to use? I only want to show features where geometry.type == "Point".

My JSON is:

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "coordinates": [....],
        "type": "Point"
      },
    },
    {
      "type": "Feature",
      "geometry": {
        "coordinates": [.....],
        "type": "LineString"
      }
    },
}

My code is:

SymbolLayer(
    id = "foo",
    source = fooSource,
    filter = feature.??????
    onClick = { features ->
        selectedFeature = features.firstOrNull()
        ClickResult.Consume
    },
    iconImage = image(marker),
)

Is anyone able to point me in the right direction please?

[sargunv]

I think you want something like:

SymbolLayer(
  filter = feature.type() eq const(GeometryType.Point)
  ....
)

Docs:

• eq(): https://maplibre.org/maplibre-compose/api/lib/maplibre-compose-expressions/dev.sargunv.maplibrecompose.expressions.dsl/eq.html
• feature.type(): https://maplibre.org/maplibre-compose/api/lib/maplibre-compose-expressions/dev.sargunv.maplibrecompose.expressions.dsl/-feature/type.html
• const(): https://maplibre.org/maplibre-compose/api/lib/maplibre-compose-expressions/dev.sargunv.maplibrecompose.expressions.dsl/const.html
• GeometryType: https://maplibre.org/maplibre-compose/api/lib/maplibre-compose-expressions/dev.sargunv.maplibrecompose.expressions.value/-geometry-type/index.html

[jg-develop]

Thank you - that worked perfectly.