91 lines
2.8 KiB
Plaintext
91 lines
2.8 KiB
Plaintext
#import "MGLPolygon.h"
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#import "MGLMultiPoint_Private.h"
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#import "MGLGeometry_Private.h"
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@implementation MGLPolygon
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@dynamic overlayBounds;
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+ (instancetype)polygonWithCoordinates:(CLLocationCoordinate2D *)coords count:(NSUInteger)count {
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return [self polygonWithCoordinates:coords count:count interiorPolygons:nil];
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}
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+ (instancetype)polygonWithCoordinates:(CLLocationCoordinate2D *)coords count:(NSUInteger)count interiorPolygons:(NSArray<MGLPolygon *> *)interiorPolygons {
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return [[self alloc] initWithCoordinates:coords count:count interiorPolygons:interiorPolygons];
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}
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- (instancetype)initWithCoordinates:(CLLocationCoordinate2D *)coords count:(NSUInteger)count interiorPolygons:(NSArray<MGLPolygon *> *)interiorPolygons {
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if (self = [super initWithCoordinates:coords count:count]) {
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if (interiorPolygons.count) {
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_interiorPolygons = interiorPolygons;
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}
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}
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return self;
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}
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- (mbgl::LinearRing<double>)ring {
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NSUInteger count = self.pointCount;
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CLLocationCoordinate2D *coordinates = self.coordinates;
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mbgl::LinearRing<double> result;
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result.reserve(self.pointCount);
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for (NSUInteger i = 0; i < count; i++) {
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result.push_back(mbgl::Point<double>(coordinates[i].longitude, coordinates[i].latitude));
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}
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return result;
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}
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- (mbgl::Annotation)annotationObjectWithDelegate:(id <MGLMultiPointDelegate>)delegate {
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mbgl::Polygon<double> geometry;
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geometry.push_back(self.ring);
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for (MGLPolygon *polygon in self.interiorPolygons) {
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geometry.push_back(polygon.ring);
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}
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mbgl::FillAnnotation annotation { geometry };
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annotation.opacity = [delegate alphaForShapeAnnotation:self];
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annotation.outlineColor = [delegate strokeColorForShapeAnnotation:self];
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annotation.color = [delegate fillColorForPolygonAnnotation:self];
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return annotation;
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}
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@end
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@interface MGLMultiPolygon ()
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@property (nonatomic, copy, readwrite) NS_ARRAY_OF(MGLPolygon *) *polygons;
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@end
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@implementation MGLMultiPolygon {
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MGLCoordinateBounds _overlayBounds;
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}
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@synthesize overlayBounds = _overlayBounds;
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+ (instancetype)multiPolygonWithPolygons:(NS_ARRAY_OF(MGLPolygon *) *)polygons {
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return [[self alloc] initWithPolygons:polygons];
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}
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- (instancetype)initWithPolygons:(NS_ARRAY_OF(MGLPolygon *) *)polygons {
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if (self = [super init]) {
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_polygons = polygons;
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mbgl::LatLngBounds bounds = mbgl::LatLngBounds::empty();
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for (MGLPolygon *polygon in _polygons) {
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bounds.extend(MGLLatLngBoundsFromCoordinateBounds(polygon.overlayBounds));
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}
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_overlayBounds = MGLCoordinateBoundsFromLatLngBounds(bounds);
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}
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return self;
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}
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- (BOOL)intersectsOverlayBounds:(MGLCoordinateBounds)overlayBounds {
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return MGLLatLngBoundsFromCoordinateBounds(_overlayBounds).intersects(MGLLatLngBoundsFromCoordinateBounds(overlayBounds));
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}
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@end
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