text: /*
   *  BMKHeatMap.h
   *  BMapKit
   *
   *  Copyright 2013 Baidu Inc. All rights reserved.
   *
   */
  #import <UIKit/UIKit.h>
  #import <Foundation/Foundation.h>
  #import <BaiduMapAPI_Base/BMKTypes.h>
  #import "BMKGradient.h"
  ///热力图节点信息
  @interface BMKHeatMapNode : NSObject{
      double                 _intensity;
      CLLocationCoordinate2D _pt;
  }
  
  ///点的强度权值
  @property (nonatomic) double intensity;
  ///点的位置坐标
  @property (nonatomic) CLLocationCoordinate2D pt;
  
  @end
  
  
  
  ///热力图的绘制数据和显示样式类
  @interface BMKHeatMap : NSObject
  {
  	int    _mRadius; //Heatmap point radius
      BMKGradient* _mGradient;//Gradient of the color map
      double   _mOpacity;//Opacity of the overall heatmap overlay [0...1]
      NSMutableArray*  _mData;
      
  }
  ///设置热力图点半径，默认为12ps
  @property (nonatomic, assign) int mRadius;
  ///设置热力图渐变，有默认值 DEFAULT_GRADIENT
  @property (nonatomic, strong) BMKGradient* mGradient;
  ///设置热力图层透明度，默认 0.6
  @property (nonatomic, assign) double mOpacity;
  ///用户传入的热力图数据,数组,成员类型为BMKHeatMapNode
  @property (nonatomic, strong) NSMutableArray* mData;
  
  @end
  
  
  
  