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#import "MGLPolyline.h"
#import "MGLMultiPoint_Private.h"
#import "MGLGeometry_Private.h"
@implementation MGLPolyline
@dynamic overlayBounds;
+ (instancetype)polylineWithCoordinates:(CLLocationCoordinate2D *)coords
count:(NSUInteger)count
{
return [[self alloc] initWithCoordinates:coords count:count];
}
- (mbgl::Annotation)annotationObjectWithDelegate:(id <MGLMultiPointDelegate>)delegate {
NSUInteger count = self.pointCount;
CLLocationCoordinate2D *coordinates = self.coordinates;
mbgl::LineString<double> geometry;
geometry.reserve(self.pointCount);
for (NSUInteger i = 0; i < count; i++) {
geometry.push_back(mbgl::Point<double>(coordinates[i].longitude, coordinates[i].latitude));
}
mbgl::LineAnnotation annotation { geometry };
annotation.opacity = { static_cast<float>([delegate alphaForShapeAnnotation:self]) };
annotation.color = { [delegate strokeColorForShapeAnnotation:self] };
annotation.width = { static_cast<float>([delegate lineWidthForPolylineAnnotation:self]) };
return annotation;
}
@end
@interface MGLMultiPolyline ()
@property (nonatomic, copy, readwrite) NS_ARRAY_OF(MGLPolyline *) *polylines;
@end
@implementation MGLMultiPolyline {
MGLCoordinateBounds _overlayBounds;
}
@synthesize overlayBounds = _overlayBounds;
+ (instancetype)multiPolylineWithPolylines:(NS_ARRAY_OF(MGLPolyline *) *)polylines {
return [[self alloc] initWithPolylines:polylines];
}
- (instancetype)initWithPolylines:(NS_ARRAY_OF(MGLPolyline *) *)polylines {
if (self = [super init]) {
_polylines = polylines;
mbgl::LatLngBounds bounds = mbgl::LatLngBounds::empty();
for (MGLPolyline *polyline in _polylines) {
bounds.extend(MGLLatLngBoundsFromCoordinateBounds(polyline.overlayBounds));
}
_overlayBounds = MGLCoordinateBoundsFromLatLngBounds(bounds);
}
return self;
}
- (BOOL)intersectsOverlayBounds:(MGLCoordinateBounds)overlayBounds {
return MGLLatLngBoundsFromCoordinateBounds(_overlayBounds).intersects(MGLLatLngBoundsFromCoordinateBounds(overlayBounds));
}
@end
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