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#import "MGLPolygon.h"
#import "MGLMultiPoint_Private.h"
#import "MGLGeometry_Private.h"
#import "MGLPolygon+MGLAdditions.h"
#import <mbgl/util/geojson.hpp>
@implementation MGLPolygon
@dynamic overlayBounds;
+ (instancetype)polygonWithCoordinates:(const CLLocationCoordinate2D *)coords count:(NSUInteger)count {
return [self polygonWithCoordinates:coords count:count interiorPolygons:nil];
}
+ (instancetype)polygonWithCoordinates:(const CLLocationCoordinate2D *)coords count:(NSUInteger)count interiorPolygons:(NSArray<MGLPolygon *> *)interiorPolygons {
return [[self alloc] initWithCoordinates:coords count:count interiorPolygons:interiorPolygons];
}
- (instancetype)initWithCoordinates:(const CLLocationCoordinate2D *)coords count:(NSUInteger)count interiorPolygons:(NSArray<MGLPolygon *> *)interiorPolygons {
if (self = [super initWithCoordinates:coords count:count]) {
if (interiorPolygons.count) {
_interiorPolygons = interiorPolygons;
}
}
return self;
}
- (instancetype)initWithCoder:(NSCoder *)decoder {
self = [super initWithCoder:decoder];
if (self) {
_interiorPolygons = [decoder decodeObjectOfClass:[NSArray class] forKey:@"interiorPolygons"];
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)coder {
[super encodeWithCoder:coder];
[coder encodeObject:self.interiorPolygons forKey:@"interiorPolygons"];
}
- (BOOL)isEqual:(id)other {
if (self == other) return YES;
if (![other isKindOfClass:[MGLPolygon class]]) return NO;
MGLPolygon *otherPolygon = (MGLPolygon *)other;
return ([super isEqual:otherPolygon] &&
[[self geoJSONDictionary] isEqualToDictionary:[otherPolygon geoJSONDictionary]]);
}
- (NSUInteger)hash {
return [super hash] + [[self geoJSONDictionary] hash];
}
- (mbgl::LinearRing<double>)ring {
NSUInteger count = self.pointCount;
CLLocationCoordinate2D *coordinates = self.coordinates;
mbgl::LinearRing<double> result;
result.reserve(self.pointCount);
for (NSUInteger i = 0; i < count; i++) {
result.push_back(mbgl::Point<double>(coordinates[i].longitude, coordinates[i].latitude));
}
return result;
}
- (mbgl::Polygon<double>)polygon {
mbgl::Polygon<double> geometry;
geometry.push_back(self.ring);
for (MGLPolygon *polygon in self.interiorPolygons) {
geometry.push_back(polygon.ring);
}
return geometry;
}
- (mbgl::Geometry<double>)geometryObject {
return [self polygon];
}
- (mbgl::Annotation)annotationObjectWithDelegate:(id <MGLMultiPointDelegate>)delegate {
mbgl::FillAnnotation annotation { [self polygon] };
annotation.opacity = { static_cast<float>([delegate alphaForShapeAnnotation:self]) };
annotation.outlineColor = { [delegate strokeColorForShapeAnnotation:self] };
annotation.color = { [delegate fillColorForPolygonAnnotation:self] };
return annotation;
}
- (NSDictionary *)geoJSONDictionary {
return @{@"type": @"Polygon",
@"coordinates": self.mgl_coordinates};
}
@end
@interface MGLMultiPolygon ()
@property (nonatomic, copy, readwrite) NS_ARRAY_OF(MGLPolygon *) *polygons;
@end
@implementation MGLMultiPolygon {
MGLCoordinateBounds _overlayBounds;
}
@synthesize overlayBounds = _overlayBounds;
+ (instancetype)multiPolygonWithPolygons:(NS_ARRAY_OF(MGLPolygon *) *)polygons {
return [[self alloc] initWithPolygons:polygons];
}
- (instancetype)initWithPolygons:(NS_ARRAY_OF(MGLPolygon *) *)polygons {
if (self = [super init]) {
_polygons = polygons;
mbgl::LatLngBounds bounds = mbgl::LatLngBounds::empty();
for (MGLPolygon *polygon in _polygons) {
bounds.extend(MGLLatLngBoundsFromCoordinateBounds(polygon.overlayBounds));
}
_overlayBounds = MGLCoordinateBoundsFromLatLngBounds(bounds);
}
return self;
}
- (instancetype)initWithCoder:(NSCoder *)decoder {
if (self = [super initWithCoder:decoder]) {
_polygons = [decoder decodeObjectOfClass:[NSArray class] forKey:@"polygons"];
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)coder {
[super encodeWithCoder:coder];
[coder encodeObject:_polygons forKey:@"polygons"];
}
- (BOOL)isEqual:(id)other {
if (self == other) return YES;
if (![other isKindOfClass:[MGLMultiPolygon class]]) return NO;
MGLMultiPolygon *otherMultiPolygon = other;
return [super isEqual:other]
&& [self.polygons isEqualToArray:otherMultiPolygon.polygons];
}
- (NSUInteger)hash {
NSUInteger hash = [super hash];
for (MGLPolygon *polygon in self.polygons) {
hash += [polygon hash];
}
return hash;
}
- (BOOL)intersectsOverlayBounds:(MGLCoordinateBounds)overlayBounds {
return MGLCoordinateBoundsIntersectsCoordinateBounds(_overlayBounds, overlayBounds);
}
- (mbgl::Geometry<double>)geometryObject {
mbgl::MultiPolygon<double> multiPolygon;
multiPolygon.reserve(self.polygons.count);
for (MGLPolygon *polygon in self.polygons) {
mbgl::Polygon<double> geometry;
geometry.push_back(polygon.ring);
for (MGLPolygon *interiorPolygon in polygon.interiorPolygons) {
geometry.push_back(interiorPolygon.ring);
}
multiPolygon.push_back(geometry);
}
return multiPolygon;
}
- (NSDictionary *)geoJSONDictionary {
NSMutableArray *coordinates = [[NSMutableArray alloc] initWithCapacity:self.polygons.count];
for (MGLPolygonFeature *feature in self.polygons) {
[coordinates addObject: feature.mgl_coordinates];
}
return @{@"type": @"MultiPolygon",
@"coordinates": coordinates};
}
@end
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