37c27f3a8f
* Use "named constructors": empty, world, hull * Make the two-argument constructor lenient (i.e., it is a hull operation) * Add various accessors * Enforce a single empty representation
65 lines
2.7 KiB
Objective-C
65 lines
2.7 KiB
Objective-C
#import "MGLGeometry.h"
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#import <TargetConditionals.h>
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#if TARGET_OS_IPHONE
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#import <UIKit/UIKit.h>
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#endif
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#import <mbgl/map/map.hpp>
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#import <mbgl/util/geo.hpp>
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/// Returns the smallest rectangle that contains both the given rectangle and
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/// the given point.
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CGRect MGLExtendRect(CGRect rect, CGPoint point);
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NS_INLINE mbgl::LatLng MGLLatLngFromLocationCoordinate2D(CLLocationCoordinate2D coordinate) {
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return mbgl::LatLng(coordinate.latitude, coordinate.longitude);
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}
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NS_INLINE CLLocationCoordinate2D MGLLocationCoordinate2DFromLatLng(mbgl::LatLng latLng) {
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return CLLocationCoordinate2DMake(latLng.latitude, latLng.longitude);
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}
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NS_INLINE MGLCoordinateBounds MGLCoordinateBoundsFromLatLngBounds(mbgl::LatLngBounds latLngBounds) {
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return MGLCoordinateBoundsMake(MGLLocationCoordinate2DFromLatLng(latLngBounds.southwest()),
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MGLLocationCoordinate2DFromLatLng(latLngBounds.northeast()));
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}
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NS_INLINE mbgl::LatLngBounds MGLLatLngBoundsFromCoordinateBounds(MGLCoordinateBounds coordinateBounds) {
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return mbgl::LatLngBounds::hull(MGLLatLngFromLocationCoordinate2D(coordinateBounds.sw),
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MGLLatLngFromLocationCoordinate2D(coordinateBounds.ne));
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}
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NS_INLINE BOOL MGLCoordinateInCoordinateBounds(CLLocationCoordinate2D coordinate, MGLCoordinateBounds coordinateBounds) {
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mbgl::LatLngBounds bounds = MGLLatLngBoundsFromCoordinateBounds(coordinateBounds);
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return bounds.contains(MGLLatLngFromLocationCoordinate2D(coordinate));
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}
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#if TARGET_OS_IPHONE
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NS_INLINE mbgl::EdgeInsets MGLEdgeInsetsFromNSEdgeInsets(UIEdgeInsets insets) {
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return { insets.top, insets.left, insets.bottom, insets.right };
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}
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#else
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NS_INLINE mbgl::EdgeInsets MGLEdgeInsetsFromNSEdgeInsets(NSEdgeInsets insets) {
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return { insets.top, insets.left, insets.bottom, insets.right };
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}
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#endif
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/** Converts a map zoom level to a camera altitude.
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@param zoomLevel The zoom level to convert.
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@param pitch The camera pitch, measured in degrees.
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@param latitude The latitude of the point at the center of the viewport.
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@param size The size of the viewport.
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@return An altitude measured in meters. */
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CLLocationDistance MGLAltitudeForZoomLevel(double zoomLevel, CGFloat pitch, CLLocationDegrees latitude, CGSize size);
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/** Converts a camera altitude to a map zoom level.
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@param altitude The altitude to convert, measured in meters.
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@param pitch The camera pitch, measured in degrees.
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@param latitude The latitude of the point at the center of the viewport.
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@param size The size of the viewport.
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@return A zero-based zoom level. */
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double MGLZoomLevelForAltitude(CLLocationDistance altitude, CGFloat pitch, CLLocationDegrees latitude, CGSize size);
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