OpenLayers 3new ol.format.GeoJSON(opt_options)
| Name | Type | Description | |||||||||
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options |
Options.
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Extends
Methods
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readFeature(source, opt_options){ol.Feature}
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Read a feature from a GeoJSON Feature source. Only works for Feature, use
readFeaturesto read FeatureCollection source.Name Type Description sourceArrayBuffer | Document | Node | Object | string Source.
optionsRead options.
Name Type Description dataProjectionol.proj.ProjectionLike | undefined Projection of the data we are reading. If not provided, the projection will be derived from the data (where possible) or the
defaultDataProjectionof the format is assigned (where set). If the projection can not be derived from the data and if nodefaultDataProjectionis set for a format, the features will not be reprojected.featureProjectionol.proj.ProjectionLike | undefined Projection of the feature geometries created by the format reader. If not provided, features will be returned in the
dataProjection.Returns:
Feature.
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readFeatures(source, opt_options){Array.<ol.Feature>}
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Read all features from a GeoJSON source. Works with both Feature and FeatureCollection sources.
Name Type Description sourceArrayBuffer | Document | Node | Object | string Source.
optionsRead options.
Name Type Description dataProjectionol.proj.ProjectionLike | undefined Projection of the data we are reading. If not provided, the projection will be derived from the data (where possible) or the
defaultDataProjectionof the format is assigned (where set). If the projection can not be derived from the data and if nodefaultDataProjectionis set for a format, the features will not be reprojected.featureProjectionol.proj.ProjectionLike | undefined Projection of the feature geometries created by the format reader. If not provided, features will be returned in the
dataProjection.Returns:
Features.
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readGeometry(source, opt_options){ol.geom.Geometry}
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Read a geometry from a GeoJSON source.
Name Type Description sourceArrayBuffer | Document | Node | Object | string Source.
optionsRead options.
Name Type Description dataProjectionol.proj.ProjectionLike | undefined Projection of the data we are reading. If not provided, the projection will be derived from the data (where possible) or the
defaultDataProjectionof the format is assigned (where set). If the projection can not be derived from the data and if nodefaultDataProjectionis set for a format, the features will not be reprojected.featureProjectionol.proj.ProjectionLike | undefined Projection of the feature geometries created by the format reader. If not provided, features will be returned in the
dataProjection.Returns:
Geometry.
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readProjection(source){ol.proj.Projection}
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Read the projection from a GeoJSON source.
Name Type Description sourceArrayBuffer | Document | Node | Object | string Source.
Returns:
Projection.
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writeFeature(feature, options){GeoJSONFeature}
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Encode a feature as a GeoJSON Feature object.
Name Type Description featureol.Feature Feature.
optionsWrite options.
Name Type Description dataProjectionol.proj.ProjectionLike | undefined Projection of the data we are writing. If not provided, the
defaultDataProjectionof the format is assigned (where set). If nodefaultDataProjectionis set for a format, the features will be returned in thefeatureProjection.featureProjectionol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.
Returns:
GeoJSON.
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writeFeatures(features, options){GeoJSONObject}
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Encode an array of features as GeoJSON.
Name Type Description featuresArray.<ol.Feature> Features.
optionsWrite options.
Name Type Description dataProjectionol.proj.ProjectionLike | undefined Projection of the data we are writing. If not provided, the
defaultDataProjectionof the format is assigned (where set). If nodefaultDataProjectionis set for a format, the features will be returned in thefeatureProjection.featureProjectionol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.
Returns:
GeoJSON.
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writeGeometry(geometry, options){GeoJSONGeometry|GeoJSONGeometryCollection}
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Encode a geometry as GeoJSON.
Name Type Description geometryol.geom.Geometry Geometry.
optionsWrite options.
Name Type Description dataProjectionol.proj.ProjectionLike | undefined Projection of the data we are writing. If not provided, the
defaultDataProjectionof the format is assigned (where set). If nodefaultDataProjectionis set for a format, the features will be returned in thefeatureProjection.featureProjectionol.proj.ProjectionLike Projection of the feature geometries that will be serialized by the format writer.
Returns:
GeoJSON.