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‎EPMapExtensions/EPAnnotationArray.h‎

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//
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// EPAnnotationArray.h
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// iOSMapExtension
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//
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// Created by epacces on 5/6/13.
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// Copyright (c) 2013 it.reply. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#import <MapKit/MapKit.h>
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@interface EPAnnotationArray : NSObject <NSFastEnumeration> {
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NSMutableArray *_annotationArray;
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}
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- (void)addAnnotation:(id <MKAnnotation>)annotation;
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- (void)addAnnotations:(NSArray *)annotations;
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- (NSArray *)allAnnotations;
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- (void)removeAnnotation:(id <MKAnnotation>)annotation;
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- (void)removeAnnotations:(NSArray *)annotations;
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- (void)removeAllAnnotations;
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- (void)removeAnnotationsConformsToProtocol:(Protocol *)protocol;
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- (void)removeAnnotationsConformsToProtocols:(NSArray *)protocols;
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- (NSArray *)annotationsConformsToProtocol:(Protocol *)protocol;
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- (NSArray *)annotationsConformsToProtocols:(NSArray *)protocols;
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- (NSArray *)annotationsWithinRange:(CLLocationDistance)radius center:(CLLocationCoordinate2D)center;
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- (NSUInteger)count;
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@end

‎EPMapExtensions/EPAnnotationArray.m‎

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//
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// EPAnnotationArray.m
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// iOSMapExtension
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//
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// Created by epacces on 5/6/13.
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// Copyright (c) 2013 it.reply. All rights reserved.
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//
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#import "EPAnnotationArray.h"
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@implementation EPAnnotationArray
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- (id)init
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{
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if (self = [super init]) {
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_annotationArray = [[NSMutableArray alloc] initWithCapacity:1];
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}
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return self;
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}
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- (void)addAnnotations:(NSArray *)annotations
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{
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for (id annotation in annotations)
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if (! [annotation conformsToProtocol:@protocol(MKAnnotation)])
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[NSException raise:NSInternalInconsistencyException format:@"annotations should contains only objs conforms to MKAnnotation protocol"];
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[_annotationArray addObjectsFromArray:annotations];
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}
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- (void)addAnnotation:(id <MKAnnotation>)annotation
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{
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if ( ! [annotation conformsToProtocol:@protocol(MKAnnotation)] )
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[NSException raise:NSInternalInconsistencyException format:@"annotation should respond to MKAnnotation protocol"];
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else
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[_annotationArray addObject:annotation];
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}
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- (NSArray *)allAnnotations
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{
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return [_annotationArray copy];
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}
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- (void)removeAllAnnotations
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{
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[_annotationArray removeAllObjects];
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}
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- (void)removeAnnotationsConformsToProtocol:(Protocol *)protocol
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{
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NSPredicate *predicate = [NSPredicate predicateWithBlock: ^BOOL(id evaluatedObject, NSDictionary *bindings ) {
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return [evaluatedObject conformsToProtocol:protocol];
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}];
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[_annotationArray filterUsingPredicate:predicate];
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}
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- (void)removeAnnotationsConformsToProtocols:(NSArray *)protocols
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{
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for (Protocol *p in protocols) {
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[self removeAnnotationsConformsToProtocol:p];
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}
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}
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- (NSArray *)annotationsConformsToProtocol:(Protocol *)protocol
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{
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NSPredicate *predicate = [NSPredicate predicateWithBlock: ^BOOL(id evaluatedObject, NSDictionary *bindings ) {
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return ![evaluatedObject conformsToProtocol:protocol];
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}];
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return [_annotationArray filteredArrayUsingPredicate:predicate];
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}
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- (NSArray *)annotationsConformsToProtocols:(NSArray *)protocols
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{
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NSMutableArray *filteredArray = [[NSMutableArray alloc] init];
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for (Protocol *p in protocols) {
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[filteredArray addObjectsFromArray:[self annotationsConformsToProtocol:p]];
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}
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return filteredArray;
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}
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- (NSArray *)annotationsWithinRange:(CLLocationDistance)radius center:(CLLocationCoordinate2D)center
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{
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CLLocation *centerPosition = [[CLLocation alloc] initWithLatitude:center.latitude longitude:center.longitude];
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NSPredicate *predicate = [NSPredicate predicateWithBlock:^BOOL(id <MKAnnotation> evaluatedObject, NSDictionary *bindings ) {
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CLLocationCoordinate2D coordinate = [evaluatedObject coordinate];
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CLLocation *annotationPosition = [[CLLocation alloc] initWithLatitude:coordinate.latitude longitude:coordinate.longitude];
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return [ annotationPosition distanceFromLocation:centerPosition ] <= radius;
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}];
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return [_annotationArray filteredArrayUsingPredicate:predicate];
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}
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- (void)removeAnnotation:(id<MKAnnotation>)annotation
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{
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[_annotationArray removeObject:annotation];
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}
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- (void)removeAnnotations:(NSArray *)annotations
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{
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[_annotationArray removeObjectsInArray:annotations];
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}
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- (NSUInteger)count
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{
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return [_annotationArray count];
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}
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- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(__unsafe_unretained id [])buffer count:(NSUInteger)len
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{
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return [_annotationArray countByEnumeratingWithState:state objects:buffer count:len];
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}
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@end

‎EPMapExtensions/EPMapExtensions-Prefix.pch‎

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//
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// Prefix header for all source files of the 'EPMapExtensions' target in the 'EPMapExtensions' project
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//
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#ifdef __OBJC__
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#import <Foundation/Foundation.h>
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#import <MapKit/MapKit.h>
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#endif

‎EPMapExtensions/EPMapExtensions.h‎

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//
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// EPMapExtensions.h
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// EPMapExtensions
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//
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// Created by epacces on 5/6/13.
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// Copyright (c) 2013 it.reply. All rights reserved.
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//
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#import "EPMapViewDecorator.h"
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#import "EPMapView.h"
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#import "EPUserPosition.h"
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#import "EPAnnotationArray.h"
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#import "EPMapViewDelegate.h"

‎EPMapExtensions/EPMapView.h‎

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//
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// EPMapView.h
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// iOSMapExtension
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//
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// Created by epacces on 5/6/13.
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// Copyright (c) 2013 it.reply. All rights reserved.
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//
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#import <MapKit/MapKit.h>
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/**
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`EPMapView` inherits from `MKMapView` and adds some services to it such as, e.g., getting a centered region with respect to annotations.
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*/
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@interface EPMapView : MKMapView
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///---------------------------------------------
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/// @name Creating maps
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///---------------------------------------------
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/**
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Creates a map view
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@param mapView The map view to initialize
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*/
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- (id)initWithMapView:(MKMapView *)mapView;
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///---------------------------------------------
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/// @name Getting centered regions
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///---------------------------------------------
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/**
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Computes the centered region with respect to all annotations presented in the map
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*/
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- (MKCoordinateRegion)centeredRegion;
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/**
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Computes the centered region with respect to all annotations presented in the map conforming to a given protocol
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@param protocol The protocol used to filter annotations
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*/
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- (MKCoordinateRegion)centeredRegionForAnnotationConformingToProtocol:(Protocol *)protocol;
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/**
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Computes the centered region with respect to all annotations presented in the map conforming to an array of protocols
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@param protocols The array of protocols to filter annotations
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*/
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- (MKCoordinateRegion)centeredRegionForAnnotationConformingToProtocols:(NSArray *)protocols;
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///---------------------------------------------
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/// @name Getting visible annotations
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///---------------------------------------------
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/**
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Computes the number of visible annotations displayed over the visible region of the map
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*/
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- (NSUInteger)visibleAnnotations;
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/**
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Computes the number of visible annotations displayed over the visible region of the map conforming to a given protocol
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@param protocol The protocol used to filter annotations
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*/
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- (NSUInteger)visibleAnnotationsConformingToProtocol:(Protocol *)protocol;
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/**
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Computes the number of visible annotations displayed over the visible region of the map conforming to a set of protocols
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@param protocols The array of protocols to filter annotations
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*/
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- (NSUInteger)visibleAnnotationsConformingToProtocols:(NSArray *)protocols;
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///---------------------------------------------
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/// @name Resetting annotation
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///---------------------------------------------
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/**
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Removes all the annotations added into the map
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*/
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- (void)removeAllAnnotations;
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@end

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