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#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
#import "MGLFoundation.h"
#import "MGLOverlay.h"
#import "MGLShape.h"
/**
An `MGLPointCollection` object represents a shape consisting of one or more
disconnected vertices, specified as `CLLocationCoordinate2D` instances. The
points in the collection may be related but are not connected spatially. For
example, you could use a point collection to represent all the trees in an
orchard.
You can add point collections to the map by adding them to an `MGLShapeSource`
object. Configure the appearance of an `MGLShapeSource`’s or
`MGLVectorTileSource`’s point collections collectively using an
`MGLCircleStyleLayer` or `MGLSymbolStyleLayer` object. To access a point
collection’s attributes, use an `MGLPointCollectionFeature` object.
You cannot add an `MGLPointCollection` object directly to a map view as an
annotation. However, you can create individual `MGLPointAnnotation` objects
from the `coordinates` array and add those annotation objects to the map view
using the `-[MGLMapView addAnnotations:]` method.
A point collection is known as a
<a href="https://tools.ietf.org/html/rfc7946#section-3.1.3">MultiPoint</a>
geometry in GeoJSON. Do not confuse `MGLPointCollection` with `MGLMultiPoint`,
the abstract superclass of `MGLPolyline` and `MGLPolygon`.
*/
MGL_EXPORT
@interface MGLPointCollection : MGLShape <MGLOverlay>
/**
Creates and returns a `MGLPointCollection` object from the specified set of
coordinates.
@param coords The array of coordinates defining the shape. The data in this
array is copied to the new object.
@param count The number of items in the `coords` array.
@return A new point collection object.
*/
+ (instancetype)pointCollectionWithCoordinates:(const CLLocationCoordinate2D *)coords count:(NSUInteger)count;
/** The array of coordinates associated with the shape. */
@property (nonatomic, readonly) CLLocationCoordinate2D *coordinates NS_RETURNS_INNER_POINTER;
/** The number of coordinates associated with the shape. */
@property (nonatomic, readonly) NSUInteger pointCount;
/**
Retrieves one or more coordinates associated with the shape.
@param coords On input, you must provide a C array of structures large enough
to hold the desired number of coordinates. On output, this structure
contains the requested coordinate data.
@param range The range of points you want. The `location` field indicates the
first point you are requesting, with `0` being the first point, `1` being
the second point, and so on. The `length` field indicates the number of
points you want. The array in _`coords`_ must be large enough to accommodate
the number of requested coordinates.
*/
- (void)getCoordinates:(CLLocationCoordinate2D *)coords range:(NSRange)range;
@end
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