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108 lines
3.4 KiB
108 lines
3.4 KiB
1 year ago
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// MAHeatMapVectorOverlay.h
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// MAMapKit
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//
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// Created by ldj on 2019/7/25.
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// Copyright © 2019 Amap. All rights reserved.
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//
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#import "MAConfig.h"
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#import "MAShape.h"
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#import "MAOverlay.h"
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///热力图类型
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typedef NS_ENUM(NSInteger, MAHeatMapType)
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{
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MAHeatMapTypeSquare = 1, ///< 网格热力图
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MAHeatMapTypeHoneycomb = 2 ///< 蜂窝热力图
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};
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///单个点对象
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@interface MAHeatMapVectorNode : NSObject
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///经纬度
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@property (nonatomic, assign) CLLocationCoordinate2D coordinate;
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///权重
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@property (nonatomic, assign) float weight;
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@end
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///热力图展示节点（用以描述一个蜂窝或一个网格）
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@interface MAHeatMapVectorItem : NSObject
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///中心点坐标
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@property (nonatomic, readonly) MAMapPoint center;
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///当前热力值，求和后的权重
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@property (nonatomic, readonly) float intensity;
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///落在此节点区域内的所有热力点的索引数组
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@property (nonatomic, readonly) NSArray<NSNumber *> *nodeIndices;
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@end
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///该类用于定义热力图属性.
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@interface MAHeatMapVectorOverlayOptions : NSObject
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///热力图类型 (默认为蜂窝类型MAHeatMapTypeHoneycomb)
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@property (nonatomic, assign) MAHeatMapType type;
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///option选项是否可见. (默认YES)
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@property (nonatomic, assign) BOOL visible;
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///MAHeatMapVectorNode array
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@property (nonatomic, strong) NSArray<MAHeatMapVectorNode *> *inputNodes;
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/**
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@verbatim
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节点的宽 单位：米 负数按照0处理 default 2000
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—— —— —— ——
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丨 丨 丨 丨
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丨 丨 丨 丨
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—— —— —— ——
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每个方框的宽就是 size（六边形同理）
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两个方框之间的间隔就是 gap （六边形同理）
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@endverbatim
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*/
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@property (nonatomic, assign) CLLocationDistance size;
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///节点之间的间隔 单位：米 负数按照0处理。注意：改变gap可能会改变热力节点的计算，内部会用size+gap来计算热力，最终用size来画方框。
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@property (nonatomic, assign) CGFloat gap;
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///颜色变化数组。 注意：colors和startPoints两数组长度必须一致且不能为0，
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@property (nonatomic, strong) NSArray<UIColor *> *colors;
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///颜色变化起点，需为递增数组，区间为[0, 1]。 注意：colors和startPoints两数组长度必须一致且不能为0。例如：startPoints @[@(0), @(0.3),@(0.7)] 表示区间 [0,0.3)使用第一个颜色，区间[0.3,0.7)使用第二个颜色，区间[0.7,1]使用第三个颜色。注意：startPoints首位需设置成0，如果首位不是0，内部也会把首位当成0来处理。
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@property (nonatomic, strong) NSArray<NSNumber *> *startPoints;
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///透明度，取值范围[0,1] ，default为1不透明
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@property (nonatomic, assign) CGFloat opacity;
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///权重的最大值，default为0，表示不填，不填则取数组inputNodes中权重的最大值
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@property (nonatomic, assign) int maxIntensity;
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///最小显示级别 default 3
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@property (nonatomic, assign) CGFloat minZoom;
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///最大显示级别 default 20
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@property (nonatomic, assign) CGFloat maxZoom;
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@end
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///矢量热力图，支持类型详见MAHeatMapType
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@interface MAHeatMapVectorOverlay : MAShape<MAOverlay>
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///热力图的配置属性
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@property (nonatomic, strong) MAHeatMapVectorOverlayOptions *option;
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/**
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* @brief 根据配置属性option生成MAHeatMapVectorOverlay
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* @param option 热力图配置属性option
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* @return 新生成的热力图MAHeatMapVectorOverlay
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*/
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+ (instancetype)heatMapOverlayWithOption:(MAHeatMapVectorOverlayOptions *)option;
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@end
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