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#import <CoreLocation/CoreLocation.h>
#import "MGLFoundation.h"
#import "MGLStyleValue.h"
NS_ASSUME_NONNULL_BEGIN
/** Options to specify extruded geometries are lit relative to the map or viewport. */
typedef NS_ENUM(NSUInteger, MGLLightAnchor) {
/** The position of the light source is aligned to the rotation of the map. */
MGLLightAnchorMap,
/** The position of the light source is aligned to the rotation of the viewport. */
MGLLightAnchorViewport
};
/**
A structure containing information about the position of the light source
relative to lit geometries.
*/
typedef struct MGLSphericalPosition {
/** Distance from the center of the base of an object to its light. */
CGFloat radial;
/** Position of the light relative to 0° (0° when `MGLLight.anchor` is set to viewport corresponds
to the top of the viewport, or 0° when `MGLLight.anchor` is set to map corresponds to due north,
and degrees proceed clockwise). */
CLLocationDirection azimuthal;
/** Indicates the height of the light (from 0°, directly above, to 180°, directly below). */
CLLocationDirection polar;
} MGLSphericalPosition;
/**
Creates a new `MGLSphericalPosition` from the given radial, azimuthal, polar.
@param radial The radial coordinate.
@param azimuthal The azimuthal angle.
@param polar The polar angle.
@return Returns a `MGLSphericalPosition` struct containing the position attributes.
*/
NS_INLINE MGLSphericalPosition MGLSphericalPositionMake(CLLocationDistance radial, CLLocationDirection azimuthal, CLLocationDirection polar) {
MGLSphericalPosition position;
position.radial = radial;
position.azimuthal = azimuthal;
position.polar = polar;
return position;
}
/**
An `MGLLight` object represents the light source for extruded geometries in `MGLStyle`.
*/
MGL_EXPORT
@interface MGLLight : NSObject
/**
`anchor` Whether extruded geometries are lit relative to the map or viewport.
This property corresponds to the <a
href="https://www.mapbox.com/mapbox-gl-js/style-spec/#light-anchor"><code>anchor</code></a>
light property in the Mapbox Style Specification.
*/
@property (nonatomic) MGLStyleValue<NSValue *> *anchor;
/**
Values describing animated transitions to `anchor` property.
*/
@property (nonatomic) MGLTransition anchorTransition;
/**
Position of the light source relative to lit (extruded) geometries.
This property corresponds to the <a
href="https://www.mapbox.com/mapbox-gl-js/style-spec/#light-position"><code>position</code></a>
light property in the Mapbox Style Specification.
*/
@property (nonatomic) MGLStyleValue<NSValue *> *position;
/**
Values describing animated transitions to `position` property.
*/
@property (nonatomic) MGLTransition positionTransition;
#if TARGET_OS_IPHONE
/**
Color tint for lighting extruded geometries.
This property corresponds to the <a
href="https://www.mapbox.com/mapbox-gl-js/style-spec/#light-color"><code>color</code></a>
light property in the Mapbox Style Specification.
*/
@property (nonatomic) MGLStyleValue<UIColor *> *color;
#else
/**
Color tint for lighting extruded geometries.
*/
@property (nonatomic) MGLStyleValue<NSColor *> *color;
#endif
/**
Values describing animated transitions to `color` property.
*/
@property (nonatomic) MGLTransition colorTransition;
/**
Intensity of lighting (on a scale from 0 to 1). Higher numbers will present as more extreme contrast.
This property corresponds to the <a
href="https://www.mapbox.com/mapbox-gl-js/style-spec/#light-intensity"><code>intensity</code></a>
light property in the Mapbox Style Specification.
*/
@property(nonatomic) MGLStyleValue<NSNumber *> *intensity;
/**
Values describing animated transitions to `intensity` property.
*/
@property (nonatomic) MGLTransition intensityTransition;
@end
NS_ASSUME_NONNULL_END
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