0fb2b855a4
Shared MGLMapCamera between iOS and OS X. Unfortunately -camera and -setCamera: implementations need to be copy-pasted for now.
102 lines
4.0 KiB
Plaintext
102 lines
4.0 KiB
Plaintext
#import "MGLMapCamera.h"
|
|
|
|
#include <mbgl/util/projection.hpp>
|
|
|
|
@implementation MGLMapCamera
|
|
|
|
+ (BOOL)supportsSecureCoding
|
|
{
|
|
return YES;
|
|
}
|
|
|
|
+ (instancetype)camera
|
|
{
|
|
return [[self alloc] init];
|
|
}
|
|
|
|
+ (instancetype)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
|
|
fromEyeCoordinate:(CLLocationCoordinate2D)eyeCoordinate
|
|
eyeAltitude:(CLLocationDistance)eyeAltitude
|
|
{
|
|
mbgl::LatLng centerLatLng = mbgl::LatLng(centerCoordinate.latitude, centerCoordinate.longitude);
|
|
mbgl::LatLng eyeLatLng = mbgl::LatLng(eyeCoordinate.latitude, eyeCoordinate.longitude);
|
|
|
|
mbgl::ProjectedMeters centerMeters = mbgl::Projection::projectedMetersForLatLng(centerLatLng);
|
|
mbgl::ProjectedMeters eyeMeters = mbgl::Projection::projectedMetersForLatLng(eyeLatLng);
|
|
CLLocationDirection heading = std::atan((centerMeters.northing - eyeMeters.northing) /
|
|
(centerMeters.easting - eyeMeters.easting));
|
|
|
|
double groundDistance = std::hypot(centerMeters.northing - eyeMeters.northing,
|
|
centerMeters.easting - eyeMeters.easting);
|
|
CGFloat pitch = std::atan(eyeAltitude / groundDistance);
|
|
|
|
return [[self alloc] initWithCenterCoordinate:centerCoordinate
|
|
altitude:eyeAltitude
|
|
pitch:pitch
|
|
heading:heading];
|
|
}
|
|
|
|
+ (instancetype)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
|
|
fromDistance:(CLLocationDistance)distance
|
|
pitch:(CGFloat)pitch
|
|
heading:(CLLocationDirection)heading
|
|
{
|
|
return [[self alloc] initWithCenterCoordinate:centerCoordinate
|
|
altitude:distance
|
|
pitch:(CGFloat)pitch
|
|
heading:heading];
|
|
}
|
|
|
|
- (instancetype)initWithCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
|
|
altitude:(CLLocationDistance)altitude
|
|
pitch:(CGFloat)pitch
|
|
heading:(CLLocationDirection)heading
|
|
{
|
|
if (self = [super init])
|
|
{
|
|
_centerCoordinate = centerCoordinate;
|
|
_altitude = altitude;
|
|
_pitch = pitch;
|
|
_heading = heading;
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (nullable instancetype)initWithCoder:(NSCoder *)coder
|
|
{
|
|
if (self = [super init])
|
|
{
|
|
_centerCoordinate = CLLocationCoordinate2DMake([coder decodeDoubleForKey:@"centerLatitude"],
|
|
[coder decodeDoubleForKey:@"centerLongitude"]);
|
|
_altitude = [coder decodeDoubleForKey:@"altitude"];
|
|
_pitch = [coder decodeDoubleForKey:@"pitch"];
|
|
_heading = [coder decodeDoubleForKey:@"heading"];
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (void)encodeWithCoder:(NSCoder *)coder
|
|
{
|
|
[coder encodeDouble:_centerCoordinate.latitude forKey:@"centerLatitude"];
|
|
[coder encodeDouble:_centerCoordinate.longitude forKey:@"centerLongitude"];
|
|
[coder encodeDouble:_altitude forKey:@"altitude"];
|
|
[coder encodeDouble:_pitch forKey:@"pitch"];
|
|
[coder encodeDouble:_heading forKey:@"heading"];
|
|
}
|
|
|
|
- (id)copyWithZone:(nullable NSZone *)zone
|
|
{
|
|
return [[[self class] allocWithZone:zone] initWithCenterCoordinate:_centerCoordinate
|
|
altitude:_altitude
|
|
pitch:_pitch
|
|
heading:_heading];
|
|
}
|
|
|
|
- (NSString *)description
|
|
{
|
|
return [NSString stringWithFormat:@"<MKMapCamera %p centerCoordinate:%f, %f altitude:%.0fm heading:%.0f° pitch:%.0f°>",
|
|
self, _centerCoordinate.latitude, _centerCoordinate.longitude, _altitude, _heading, _pitch];
|
|
}
|
|
|
|
@end
|