1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
#import "MGLMapCamera.h"
#import "MGLGeometry_Private.h"
#import "MGLLoggingConfiguration_Private.h"
#import <CoreLocation/CoreLocation.h>
#include <mbgl/math/wrap.hpp>
BOOL MGLEqualFloatWithAccuracy(CGFloat left, CGFloat right, CGFloat accuracy)
{
return MAX(left, right) - MIN(left, right) <= accuracy;
}
@implementation MGLMapCamera
+ (BOOL)supportsSecureCoding
{
return YES;
}
+ (instancetype)camera
{
return [[self alloc] init];
}
+ (instancetype)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
fromEyeCoordinate:(CLLocationCoordinate2D)eyeCoordinate
eyeAltitude:(CLLocationDistance)eyeAltitude
{
CLLocationDirection heading = -1;
CGFloat pitch = -1;
if (CLLocationCoordinate2DIsValid(centerCoordinate) && CLLocationCoordinate2DIsValid(eyeCoordinate)) {
heading = MGLDirectionBetweenCoordinates(eyeCoordinate, centerCoordinate);
CLLocation *centerLocation = [[CLLocation alloc] initWithLatitude:centerCoordinate.latitude
longitude:centerCoordinate.longitude];
CLLocation *eyeLocation = [[CLLocation alloc] initWithLatitude:eyeCoordinate.latitude
longitude:eyeCoordinate.longitude];
CLLocationDistance groundDistance = [eyeLocation distanceFromLocation:centerLocation];
CGFloat radianPitch = atan2(eyeAltitude, groundDistance);
pitch = mbgl::util::wrap(90 - MGLDegreesFromRadians(radianPitch), 0.0, 360.0);
}
return [[self alloc] initWithCenterCoordinate:centerCoordinate
altitude:eyeAltitude
pitch:pitch
heading:heading];
}
+ (instancetype)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
acrossDistance:(CLLocationDistance)distance
pitch:(CGFloat)pitch
heading:(CLLocationDirection)heading
{
// Angle at the viewpoint formed by the straight lines running perpendicular
// to the ground and toward the center coordinate.
CLLocationDirection eyeAngle = 90 - pitch;
CLLocationDistance altitude = distance * sin(MGLRadiansFromDegrees(eyeAngle));
return [[self alloc] initWithCenterCoordinate:centerCoordinate
altitude:altitude
pitch:pitch
heading:heading];
}
+ (instancetype)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
altitude:(CLLocationDistance)altitude
pitch:(CGFloat)pitch
heading:(CLLocationDirection)heading
{
return [[self alloc] initWithCenterCoordinate:centerCoordinate
altitude:altitude
pitch:pitch
heading:heading];
}
+ (instancetype)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
fromDistance:(CLLocationDistance)distance
pitch:(CGFloat)pitch
heading:(CLLocationDirection)heading
{
// TODO: Remove this compatibility shim in favor of `-cameraLookingAtCenterCoordinate:acrossDistance:pitch:heading:.
// https://github.com/mapbox/mapbox-gl-native/issues/12943
return [MGLMapCamera cameraLookingAtCenterCoordinate:centerCoordinate
altitude:distance
pitch:pitch
heading:heading];
}
- (instancetype)initWithCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
altitude:(CLLocationDistance)altitude
pitch:(CGFloat)pitch
heading:(CLLocationDirection)heading
{
MGLLogDebug(@"Initializing withCenterCoordinate: %@ altitude: %.0fm pitch: %f° heading: %f°", MGLStringFromCLLocationCoordinate2D(centerCoordinate), altitude, pitch, heading);
if (self = [super init])
{
_centerCoordinate = centerCoordinate;
_altitude = altitude;
_pitch = pitch;
_heading = heading;
}
return self;
}
- (nullable instancetype)initWithCoder:(NSCoder *)coder
{
MGLLogInfo(@"Initialiazing with 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];
}
+ (NSSet<NSString *> *)keyPathsForValuesAffectingViewingDistance {
return [NSSet setWithObjects:@"altitude", @"pitch", nil];
}
- (CLLocationDistance)viewingDistance {
CLLocationDirection eyeAngle = 90 - self.pitch;
return self.altitude / sin(MGLRadiansFromDegrees(eyeAngle));
}
- (void)setViewingDistance:(CLLocationDistance)distance {
MGLLogDebug(@"Setting viewingDistance: %f", distance);
CLLocationDirection eyeAngle = 90 - self.pitch;
self.altitude = distance * sin(MGLRadiansFromDegrees(eyeAngle));
}
- (NSString *)description
{
return [NSString stringWithFormat:@"<%@: %p; centerCoordinate = %f, %f; altitude = %.0fm; heading = %.0f°; pitch = %.0f°>",
NSStringFromClass([self class]), (void *)self, _centerCoordinate.latitude, _centerCoordinate.longitude, _altitude, _heading, _pitch];
}
- (BOOL)isEqual:(id)other
{
if ( ! [other isKindOfClass:[self class]])
{
return NO;
}
if (other == self)
{
return YES;
}
MGLMapCamera *otherCamera = other;
return (_centerCoordinate.latitude == otherCamera.centerCoordinate.latitude
&& _centerCoordinate.longitude == otherCamera.centerCoordinate.longitude
&& _altitude == otherCamera.altitude
&& _pitch == otherCamera.pitch && _heading == otherCamera.heading);
}
- (BOOL)isEqualToMapCamera:(MGLMapCamera *)otherCamera
{
if (otherCamera == self)
{
return YES;
}
return (MGLEqualFloatWithAccuracy(_centerCoordinate.latitude, otherCamera.centerCoordinate.latitude, 1e-6)
&& MGLEqualFloatWithAccuracy(_centerCoordinate.longitude, otherCamera.centerCoordinate.longitude, 1e-6)
&& MGLEqualFloatWithAccuracy(_altitude, otherCamera.altitude, 1e-6)
&& MGLEqualFloatWithAccuracy(_pitch, otherCamera.pitch, 1)
&& MGLEqualFloatWithAccuracy(_heading, otherCamera.heading, 1));
}
- (NSUInteger)hash
{
return (@(_centerCoordinate.latitude).hash + @(_centerCoordinate.longitude).hash
+ @(_altitude).hash + @(_pitch).hash + @(_heading).hash);
}
@end
|
