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#import "MGLSource.h"
#import "MGLTypes.h"
NS_ASSUME_NONNULL_BEGIN
@protocol MGLFeature;
/**
An `NSNumber` object containing a Boolean enabling or disabling clustering.
If the `features` property contains point features, setting this option to
`YES` clusters the points by radius into groups. The default value is `NO`.
*/
extern NSString * const MGLGeoJSONClusterOption;
/**
An `NSNumber` object containing an integer; specifies the radius of each
cluster if clustering is enabled. A value of 512 produces a radius equal to
the width of a tile. The default value is 50.
*/
extern NSString * const MGLGeoJSONClusterRadiusOption;
/**
An `NSNumber` object containing an integer; specifies the maximum zoom level at
which to cluster points if clustering is enabled. Defaults to one zoom level
less than the value of `MGLGeoJSONMaximumZoomLevelOption` so that, at the
maximum zoom level, the features are not clustered.
*/
extern NSString * const MGLGeoJSONClusterMaximumZoomLevelOption;
/**
An `NSNumber` object containing an integer; specifies the maximum zoom level at
which to create vector tiles. A greater value produces greater detail at high
zoom levels. The default value is 18.
*/
extern NSString * const MGLGeoJSONMaximumZoomLevelOption;
/**
An `NSNumber` object containing an integer; specifies the size of the tile
buffer on each side. A value of 0 produces no buffer. A value of 512 produces a
buffer as wide as the tile itself. Larger values produce fewer rendering
artifacts near tile edges and slower performance. The default value is 128.
*/
extern NSString * const MGLGeoJSONBufferOption;
/**
An `NSNumber` object containing a double; specifies the Douglas-Peucker
simplification tolerance. A greater value produces simpler geometries and
improves performance. The default value is 0.375.
*/
extern NSString * const MGLGeoJSONToleranceOption;
/**
A GeoJSON source.
@see <a href="https://www.mapbox.com/mapbox-gl-style-spec/#sources-geojson">The
style specification.</a>
*/
@interface MGLGeoJSONSource : MGLSource
/**
The contents of the source.
If the receiver was initialized using `-initWithSourceIdentifier:URL:`, this
property is set to `nil`. This property is unavailable until the receiver is
passed into `-[MGLStyle addSource]`.
*/
@property (nonatomic, readonly, nullable) NS_ARRAY_OF(id <MGLFeature>) *features;
/**
A GeoJSON representation of the contents of the source.
Use the `features` property instead to get an object representation of the
contents. Alternatively, use NSJSONSerialization with the value of this
property to transform it into Foundation types.
If the receiver was initialized using `-initWithSourceIdentifier:URL:`, this
property is set to `nil`. This property is unavailable until the receiver is
passed into `-[MGLStyle addSource]`.
*/
@property (nonatomic, readonly, nullable, copy) NSData *geoJSONData;
/**
The URL to the GeoJSON document that specifies the contents of the source.
If the receiver was initialized using `-initWithSourceIdentifier:geoJSONData:`,
this property is set to `nil`.
*/
@property (nonatomic, readonly, nullable) NSURL *URL;
/**
Initializes a source with the given identifier and GeoJSON data.
@param sourceIdentifier A string that uniquely identifies the source.
@param geoJSONData An NSData object representing GeoJSON source code.
*/
- (instancetype)initWithSourceIdentifier:(NSString *)sourceIdentifier geoJSONData:(NSData *)data NS_DESIGNATED_INITIALIZER;
/**
Initializes a source with the given identifier, GeoJSON data, and a dictionary
of options for the source as specified by the
<a href="https://www.mapbox.com/mapbox-gl-style-spec/#sources-geojson">the
style specification</a>.
@param sourceIdentifier A string that uniquely identifies the source.
@param geoJSONData An NSData object representing GeoJSON source code.
@param options An NSDictionary of attributes for this source.
*/
- (instancetype)initWithSourceIdentifier:(NSString *)sourceIdentifier geoJSONData:(NSData *)data options:(NS_DICTIONARY_OF(NSString *, id) *)options NS_DESIGNATED_INITIALIZER;
/**
Initializes a source with the given identifier and URL.
@param sourceIdentifier A string that uniquely identifies the source.
@param URL An HTTP(S) URL, absolute file URL, or local file URL relative to the
current application’s resource bundle.
*/
- (instancetype)initWithSourceIdentifier:(NSString *)sourceIdentifier URL:(NSURL *)url NS_DESIGNATED_INITIALIZER;
/**
Initializes a source with the given identifier, a URL, and a dictionary of
options for the source as specified by the
<a href="https://www.mapbox.com/mapbox-gl-style-spec/#sources-geojson">the
style specification</a>.
@param sourceIdentifier A string that uniquely identifies the source.
@param URL An HTTP(S) URL, absolute file URL, or local file URL relative to the
current application’s resource bundle.
@param options An NSDictionary of attributes for this source.
*/
- (instancetype)initWithSourceIdentifier:(NSString *)sourceIdentifier URL:(NSURL *)url options:(NS_DICTIONARY_OF(NSString *, id) *)options NS_DESIGNATED_INITIALIZER;
@end
NS_ASSUME_NONNULL_END
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