d668c0fa84
Greatly simplified conversions between zoom level and altitude. Adjusted field of view to more closely match MapKit. Conversions are now well within the same order of magnitude as MapKit at all latitudes. Fixes #2266.
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.sw),
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MGLLocationCoordinate2DFromLatLng(latLngBounds.ne));
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}
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NS_INLINE mbgl::LatLngBounds MGLLatLngBoundsFromCoordinateBounds(MGLCoordinateBounds coordinateBounds) {
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return mbgl::LatLngBounds(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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