65 lines
2.1 KiB
Objective-C
65 lines
2.1 KiB
Objective-C
/*
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* BMKGroundOverlay.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 "BMKMultiPoint.h"
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#import "BMKOverlay.h"
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/// 该类用于定义一个图片图层
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@interface BMKGroundOverlay : BMKMultiPoint<BMKOverlay>
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{
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@public
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float zoomLevel;
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CLLocationCoordinate2D _pt;
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BMKCoordinateBounds _bound;
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CGPoint _anchor;
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UIImage* _icon;
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int iconID;
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BOOL isCenterPt;
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int left;
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int bottom;
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int width;
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int height;
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}
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/// 两种绘制GroundOverlay的方式之一：绘制的位置地理坐标，与anchor配对使用
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@property (nonatomic,assign) CLLocationCoordinate2D pt;
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/// 用位置绘制时图片的锚点，图片左上角为(0.0f,0.0f),向右向下为正
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/// 使用groundOverlayWithPosition初始化时生效
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@property (nonatomic,assign) CGPoint anchor;
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/// 两种绘制GroundOverlay的方式之二：绘制的地理区域范围，图片在此区域内合理缩放
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@property (nonatomic,assign) BMKCoordinateBounds bound;
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/// 绘制图片
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@property(nonatomic, strong) UIImage *icon;
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///图片纹理透明度,最终透明度 = 纹理透明度 * alpha,取值范围为[0.0f, 1.0f]，默认为1.0f
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@property(nonatomic) GLfloat alpha;
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/**
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*根据指定经纬度坐标生成一个groundOverlay
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*@param position 指定的经纬度坐标
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*@param zoomLevel 不损失精度绘制原始图片的地图等级
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*@param anchor 绘制图片的锚点
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*@param icon 绘制使用的图片
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*@return 新生成的groundOverlay对象
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*/
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+ (BMKGroundOverlay *)groundOverlayWithPosition:(CLLocationCoordinate2D)position
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zoomLevel:(CGFloat)zoomLevel
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anchor:(CGPoint)anchor
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icon:(UIImage*)icon;
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/**
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*根据指定区域生成一个groundOverlay
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*@param bounds 指定的经纬度区域
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*@param icon 绘制使用的图片
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*@return 新生成的groundOverlay对象
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*/
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+ (BMKGroundOverlay *)groundOverlayWithBounds:(BMKCoordinateBounds)bounds
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icon:(UIImage*)icon;
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@end |