106 lines
2.9 KiB
Plaintext
106 lines
2.9 KiB
Plaintext
#import "MGLPointCollection_Private.h"
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#import "MGLGeometry_Private.h"
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#import <mbgl/util/geometry.hpp>
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#import <mbgl/util/feature.hpp>
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NS_ASSUME_NONNULL_BEGIN
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@implementation MGLPointCollection
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{
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MGLCoordinateBounds _bounds;
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std::vector<CLLocationCoordinate2D> _coordinates;
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}
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+ (instancetype)pointCollectionWithCoordinates:(const CLLocationCoordinate2D *)coords count:(NSUInteger)count
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{
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return [[self alloc] initWithCoordinates:coords count:count];
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}
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- (instancetype)initWithCoordinates:(const CLLocationCoordinate2D *)coords count:(NSUInteger)count
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{
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self = [super init];
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if (self)
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{
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_coordinates = { coords, coords + count };
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mbgl::LatLngBounds bounds = mbgl::LatLngBounds::empty();
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for (auto coordinate : _coordinates)
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{
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bounds.extend(mbgl::LatLng(coordinate.latitude, coordinate.longitude));
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}
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_bounds = MGLCoordinateBoundsFromLatLngBounds(bounds);
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}
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return self;
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}
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- (NSUInteger)pointCount
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{
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return _coordinates.size();
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}
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- (CLLocationCoordinate2D *)coordinates
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{
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return _coordinates.data();
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}
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- (CLLocationCoordinate2D)coordinate
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{
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NSAssert([self pointCount] > 0, @"A multipoint must have coordinates");
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return _coordinates.at(0);
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}
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- (void)getCoordinates:(CLLocationCoordinate2D *)coords range:(NSRange)range
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{
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if (range.location + range.length > [self pointCount])
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{
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[NSException raise:NSRangeException
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format:@"Invalid coordinate range %@ extends beyond current coordinate count of %ld",
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NSStringFromRange(range), (unsigned long)[self pointCount]];
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}
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std::copy(_coordinates.begin() + range.location, _coordinates.begin() + NSMaxRange(range), coords);
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}
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- (MGLCoordinateBounds)overlayBounds
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{
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return _bounds;
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}
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- (BOOL)intersectsOverlayBounds:(MGLCoordinateBounds)overlayBounds
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{
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return MGLLatLngBoundsFromCoordinateBounds(_bounds).intersects(MGLLatLngBoundsFromCoordinateBounds(overlayBounds));
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}
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- (mbgl::Feature)featureObject
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{
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mbgl::MultiPoint<double> multiPoint;
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multiPoint.reserve(self.pointCount);
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for (NSInteger i = 0; i< self.pointCount; i++)
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{
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multiPoint.push_back(mbgl::Point<double>(self.coordinates[i].longitude, self.coordinates[i].latitude));
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}
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return mbgl::Feature {multiPoint};
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}
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- (NSDictionary *)geoJSONDictionary
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{
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NSMutableArray *coordinates = [[NSMutableArray alloc] initWithCapacity:self.pointCount];
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for (NSUInteger index = 0; index < self.pointCount; index++) {
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CLLocationCoordinate2D coordinate = self.coordinates[index];
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[coordinates addObject:@[@(coordinate.longitude), @(coordinate.latitude)]];
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}
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return @{@"type": @"MultiPoint",
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@"coordinates": coordinates};
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}
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- (NSString *)description
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{
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return [NSString stringWithFormat:@"<%@: %p; count = %lu>",
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NSStringFromClass([self class]), (void *)self, (unsigned long)[self pointCount]];
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}
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@end
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NS_ASSUME_NONNULL_END
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