parse<T extends Geometry> static method

FeatureCollection<Feature<T>> parse<T extends Geometry>(String text, { TextReaderFormat<FeatureContent> format = GeoJSON.feature, CoordRefSys? crs, Map<String, dynamic>? options, })

Parses a feature collection from text conforming to format.

Feature items on a collection contain a geometry of T.

When format is not given, then the feature format of GeoJSON is used as a default.

Use crs to give hints (like axis order, and whether x and y must be swapped when read in) about coordinate reference system in text input.

Format or decoder implementation specific options can be set by options.

Examples:

// a feature collection with two features
FeatureCollection.parse(
  format: GeoJSON.feature,
  '''
  {
    "type": "FeatureCollection",
    "features": [
      {
        "type": "Feature",
        "id": "1",
        "geometry": {
          "type": "Point",
          "coordinates": [10.0, 20.0]
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "LineString",
          "coordinates": [
            [10.0, 20.0, 30.0],
            [12.5, 22.5, 32.5],
            [15.0, 25.0, 35.0]
          ]
        },
        "properties": {
          "textProp": "this is property value",
          "intProp": 10,
          "doubleProp": 29.5,
          "arrayProp": ["foo", "bar"]
        }
      }
    ]
  }
  ''',
);

Implementation

static FeatureCollection<Feature<T>> parse<T extends Geometry>(
  String text, {
  TextReaderFormat<FeatureContent> format = GeoJSON.feature,
  CoordRefSys? crs,
  Map<String, dynamic>? options,
}) =>
    FeatureBuilder.parse<FeatureCollection<Feature<T>>, T>(
      text,
      format: format,
      crs: crs,
      options: options,
    );