Class: GeoJSON

Extends

• ol.format.JSONFeature

Methods

readFeature(source, opt_options){ol.Feature}

src/ol/format/geojsonformat.js, line 355

Read a feature from a GeoJSON Feature source. Only works for Feature, use readFeatures to read FeatureCollection source.

Name	Type	Description
source	ArrayBuffer | Document | Node | Object | string	Source.
options	Read options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are reading. If not provided, the projection will be derived from the data (where possible) or the defaultDataProjection of the format is assigned (where set). If the projection can not be derived from the data and if no defaultDataProjection is set for a format, the features will not be reprojected. featureProjection ol.proj.ProjectionLike Projection of the feature geometries created by the format reader. If not provided, features will be returned in the dataProjection.

Returns:

Feature.

readFeatures(source, opt_options){Array.<ol.Feature>}

src/ol/format/geojsonformat.js, line 368

Read all features from a GeoJSON source. Works with both Feature and FeatureCollection sources.

Name	Type	Description
source	ArrayBuffer | Document | Node | Object | string	Source.
options	Read options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are reading. If not provided, the projection will be derived from the data (where possible) or the defaultDataProjection of the format is assigned (where set). If the projection can not be derived from the data and if no defaultDataProjection is set for a format, the features will not be reprojected. featureProjection ol.proj.ProjectionLike Projection of the feature geometries created by the format reader. If not provided, features will be returned in the dataProjection.

Returns:

Features.

readGeometry(source, opt_options){ol.geom.Geometry}

src/ol/format/geojsonformat.js, line 431

Read a geometry from a GeoJSON source.

Name	Type	Description
source	ArrayBuffer | Document | Node | Object | string	Source.
options	Read options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are reading. If not provided, the projection will be derived from the data (where possible) or the defaultDataProjection of the format is assigned (where set). If the projection can not be derived from the data and if no defaultDataProjection is set for a format, the features will not be reprojected. featureProjection ol.proj.ProjectionLike Projection of the feature geometries created by the format reader. If not provided, features will be returned in the dataProjection.

Returns:

Geometry.

readProjection(source){ol.proj.Projection}

src/ol/format/geojsonformat.js, line 452

Read the projection from a GeoJSON source.

Name	Type	Description
source	ArrayBuffer | Document | Node | Object | string	Source.

Returns:

Projection.

writeFeature(feature, options){string}

src/ol/format/geojsonformat.js, line 489

Encode a feature as a GeoJSON Feature string.

Name	Type	Description
feature	ol.Feature	Feature.
options	Write options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are writing. If not provided, the defaultDataProjection of the format is assigned (where set). If no defaultDataProjection is set for a format, the features will be returned in the featureProjection. featureProjection ol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.

Returns:

GeoJSON.

writeFeatureObject(feature, opt_options){Object} experimental

src/ol/format/geojsonformat.js, line 500

Encode a feature as a GeoJSON Feature object.

Name	Type	Description
feature	ol.Feature	Feature.
options	Write options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are writing. If not provided, the defaultDataProjection of the format is assigned (where set). If no defaultDataProjection is set for a format, the features will be returned in the featureProjection. featureProjection ol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.

Returns:

Object.

writeFeatures(features, options){string}

src/ol/format/geojsonformat.js, line 533

Encode an array of features as GeoJSON.

Name	Type	Description
features	Array.<ol.Feature>	Features.
options	Write options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are writing. If not provided, the defaultDataProjection of the format is assigned (where set). If no defaultDataProjection is set for a format, the features will be returned in the featureProjection. featureProjection ol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.

Returns:

GeoJSON.

writeFeaturesObject(features, opt_options){Object} experimental

src/ol/format/geojsonformat.js, line 544

Encode an array of features as a GeoJSON object.

Name	Type	Description
features	Array.<ol.Feature>	Features.
options	Write options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are writing. If not provided, the defaultDataProjection of the format is assigned (where set). If no defaultDataProjection is set for a format, the features will be returned in the featureProjection. featureProjection ol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.

Returns:

GeoJSON Object.

writeGeometry(geometry, options){string}

src/ol/format/geojsonformat.js, line 568

Encode a geometry as a GeoJSON string.

Name	Type	Description
geometry	ol.geom.Geometry	Geometry.
options	Write options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are writing. If not provided, the defaultDataProjection of the format is assigned (where set). If no defaultDataProjection is set for a format, the features will be returned in the featureProjection. featureProjection ol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.

Returns:

GeoJSON.

writeGeometryObject(geometry, opt_options){GeoJSONGeometry|GeoJSONGeometryCollection} experimental

src/ol/format/geojsonformat.js, line 579

Encode a geometry as a GeoJSON object.

Name	Type	Description
geometry	ol.geom.Geometry	Geometry.
options	Write options. Name Type Description dataProjection ol.proj.ProjectionLike Projection of the data we are writing. If not provided, the defaultDataProjection of the format is assigned (where set). If no defaultDataProjection is set for a format, the features will be returned in the featureProjection. featureProjection ol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.

Returns:

Object.