62 lines
1.6 KiB
Objective-C
62 lines
1.6 KiB
Objective-C
/*
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* BMKCircle.h
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* BMapKit
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*
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* Copyright 2011 Baidu Inc. All rights reserved.
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*
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*/
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#import "BMKShape.h"
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#import "BMKMultiPoint.h"
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#import "BMKOverlay.h"
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/// 该类用于定义一个圆
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@interface BMKCircle : BMKMultiPoint <BMKOverlay> {
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@package
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BOOL _invalidate;
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CLLocationCoordinate2D _coordinate;
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CLLocationDistance _radius;
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BMKMapRect _boundingMapRect;
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}
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/**
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*根据中心点和半径生成圆
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*@param coord 中心点的经纬度坐标
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*@param radius 半径，单位：米
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*@return 新生成的圆
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*/
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+ (BMKCircle *)circleWithCenterCoordinate:(CLLocationCoordinate2D)coord
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radius:(CLLocationDistance)radius;
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/**
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*根据指定的直角坐标矩形生成圆，半径由较长的那条边决定，radius = MAX(width, height)/2
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*@param mapRect 指定的直角坐标矩形
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*@return 新生成的圆
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*/
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+ (BMKCircle *)circleWithMapRect:(BMKMapRect)mapRect;
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/// 中心点坐标
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@property (nonatomic, assign) CLLocationCoordinate2D coordinate;
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/// 半径，单位：米
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@property (nonatomic, assign) CLLocationDistance radius;
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/// 该圆的外接矩形
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@property (nonatomic, readonly) BMKMapRect boundingMapRect;
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/**
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*设置圆的中心点和半径
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*@param coord 中心点的经纬度坐标
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*@param radius 半径，单位：米
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*@return 是否设置成功
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*/
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- (BOOL)setCircleWithCenterCoordinate:(CLLocationCoordinate2D)coord radius:(CLLocationDistance)radius;
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/**
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*根据指定的直角坐标矩形设置圆，半径由较长的那条边决定，radius = MAX(width, height)/2
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*@param mapRect 指定的直角坐标矩形
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*@return 是否设置成功
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*/
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- (BOOL)setCircleWithMapRect:(BMKMapRect)mapRect;
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@end
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