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- //
- // GMSMapLayer.h
- // Google Maps SDK for iOS
- //
- // Copyright 2013 Google Inc.
- //
- // Usage of this SDK is subject to the Google Maps/Google Earth APIs Terms of
- // Service: https://developers.google.com/maps/terms
- //
- #import <CoreLocation/CoreLocation.h>
- #import <QuartzCore/QuartzCore.h>
- #import <GoogleMaps/GMSCALayer.h>
- /**
- * The following layer properties and constants describe the camera properties
- * that may be animated on the custom model layer of a GMSMapView with Core
- * Animation. For simple camera control and animation, please see the helper
- * methods in GMSMapView+Animation.h, and the camera object definition within
- * GMSCameraPosition.h.
- *
- * Changing layer properties triggers an implicit animation, e.g.:-
- * mapView_.layer.cameraBearing = 20;
- *
- * An explicit animation, replacing the implicit animation, may be added after
- * changing the property, e.g.-
- * CAMediaTimingFunction *curve = [CAMediaTimingFunction functionWithName:
- * kCAMediaTimingFunctionEaseInEaseOut];
- * CABasicAnimation *animation =
- * [CABasicAnimation animationWithKeyPath:kGMSLayerCameraBearingKey];
- * animation.duration = 2.0f;
- * animation.timingFunction = curve;
- * animation.toValue = @20;
- * [mapView_.layer addAnimation:animation forKey:kGMSLayerCameraBearingKey];
- *
- * To control several implicit animations, Core Animation's transaction support
- * may be used, e.g.-
- * [CATransaction begin];
- * [CATransaction setAnimationDuration:2.0f];
- * mapView_.layer.cameraBearing = 20;
- * mapView_.layer.cameraViewingAngle = 30;
- * [CATransaction commit];
- *
- * Note that these properties are not view-based. Please see "Animating View
- * and Layer Changes Together" in the View Programming Guide for iOS-
- * http://developer.apple.com/library/ios/#documentation/windowsviews/conceptual/viewpg_iphoneos/AnimatingViews/AnimatingViews.html
- */
- /**
- * kGMSLayerCameraLatitudeKey ranges from [-85, 85], and values outside this
- * range will be clamped.
- */
- extern NSString *const kGMSLayerCameraLatitudeKey;
- /**
- * kGMSLayerCameraLongitudeKey ranges from [-180, 180), and values outside this
- * range will be wrapped to within this range.
- */
- extern NSString *const kGMSLayerCameraLongitudeKey;
- /**
- * kGMSLayerCameraBearingKey ranges from [0, 360), and values are wrapped.
- */
- extern NSString *const kGMSLayerCameraBearingKey;
- /**
- * kGMSLayerCameraZoomLevelKey ranges from [kGMSMinZoomLevel, kGMSMaxZoomLevel],
- * and values are clamped.
- */
- extern NSString *const kGMSLayerCameraZoomLevelKey;
- /**
- * kGMSLayerCameraViewingAngleKey ranges from zero (i.e., facing straight down)
- * and to between 30 and 45 degrees towards the horizon, depending on the model
- * zoom level.
- */
- extern NSString *const kGMSLayerCameraViewingAngleKey;
- /**
- * GMSMapLayer is a custom subclass of CALayer, provided as the layer class on
- * GMSMapView. This layer should not be instantiated directly. It provides
- * model access to the camera normally defined on GMSMapView.
- *
- * Modifying or animating these properties will typically interrupt any current
- * gesture on GMSMapView, e.g., a user's pan or rotation. Similarly, if a user
- * performs an enabled gesture during an animation, the animation will stop
- * 'in-place' (at the current presentation value).
- */
- @interface GMSMapLayer : GMSCALayer
- @property(nonatomic, assign) CLLocationDegrees cameraLatitude;
- @property(nonatomic, assign) CLLocationDegrees cameraLongitude;
- @property(nonatomic, assign) CLLocationDirection cameraBearing;
- @property(nonatomic, assign) float cameraZoomLevel;
- @property(nonatomic, assign) double cameraViewingAngle;
- @end
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