blob: 7d181667d60eacb84c5ec950c081ba3fe2d68665 (
plain)
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
|
#import <Foundation/Foundation.h>
#import "MGLFoundation.h"
#import "MGLTypes.h"
NS_ASSUME_NONNULL_BEGIN
/**
`MGLStyleLayer` is an abstract base class for style layers. A style layer
manages the layout and appearance of content at a specific z-index in a style.
An `MGLStyle` object consists of one or more `MGLStyleLayer` objects.
Each style layer defined by the style JSON file is represented at runtime by an
`MGLStyleLayer` object, which you can use to refine the map’s appearance. You
can also add and remove style layers dynamically.
Do not create instances of this class directly, and do not create your own
subclasses of this class. Instead, create instances of
`MGLBackgroundStyleLayer` and the concrete subclasses of
`MGLForegroundStyleLayer`.
Do not add `MGLStyleLayer` objects to the `style` property of a `MGLMapView` before
`-mapView:didFinishLoadingStyle:` is called.
*/
MGL_EXPORT
@interface MGLStyleLayer : NSObject
#pragma mark Initializing a Style Layer
- (instancetype)init __attribute__((unavailable("Use -init methods of concrete subclasses instead.")));
#pragma mark Identifying a Style Layer
/**
A string that uniquely identifies the style layer in the style to which it is
added.
*/
@property (nonatomic, copy, readonly) NSString *identifier;
#pragma mark Configuring a Style Layer’s Visibility
/**
Whether this layer is displayed. A value of `NO` hides the layer.
*/
@property (nonatomic, assign, getter=isVisible) BOOL visible;
/**
The maximum zoom level at which the layer gets parsed and appears. This value is a floating-point number.
*/
@property (nonatomic, assign) float maximumZoomLevel;
/**
The minimum zoom level at which the layer gets parsed and appears. This value is a floating-point number.
*/
@property (nonatomic, assign) float minimumZoomLevel;
@end
NS_ASSUME_NONNULL_END
|
