diff options
Diffstat (limited to 'platform/darwin/src/MGLGeometry.mm')
| -rw-r--r-- | platform/darwin/src/MGLGeometry.mm | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/platform/darwin/src/MGLGeometry.mm b/platform/darwin/src/MGLGeometry.mm index c6fb5a5fc2..bd25b00475 100644 --- a/platform/darwin/src/MGLGeometry.mm +++ b/platform/darwin/src/MGLGeometry.mm @@ -3,6 +3,7 @@ #import "MGLFoundation.h" #import <mbgl/util/projection.hpp> +#import <mbgl/util/constants.hpp> #if !TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR #import <Cocoa/Cocoa.h> @@ -67,6 +68,12 @@ MGLRadianDistance MGLDistanceBetweenRadianCoordinates(MGLRadianCoordinate2D from return 2 * atan2(sqrt(a), sqrt(1 - a)); } +CLLocationDistance MGLDistanceBetweenLocationCoordinates(CLLocationCoordinate2D from, CLLocationCoordinate2D to) { + MGLRadianDistance radianDistance = MGLDistanceBetweenRadianCoordinates(MGLRadianCoordinateFromLocationCoordinate(from), + MGLRadianCoordinateFromLocationCoordinate(to)); + return radianDistance * mbgl::util::EARTH_RADIUS_M; +} + MGLRadianDirection MGLRadianCoordinatesDirection(MGLRadianCoordinate2D from, MGLRadianCoordinate2D to) { double a = sin(to.longitude - from.longitude) * cos(to.latitude); double b = cos(from.latitude) * sin(to.latitude) @@ -84,6 +91,16 @@ MGLRadianCoordinate2D MGLRadianCoordinateAtDistanceFacingDirection(MGLRadianCoor return MGLRadianCoordinate2DMake(otherLatitude, otherLongitude); } +CLLocationCoordinate2D MGLCoordinateAtDistanceFacingDirection(CLLocationCoordinate2D coordinate, + CLLocationDistance distance, + CLLocationDirection direction) { + MGLRadianCoordinate2D radianCenter = MGLRadianCoordinateFromLocationCoordinate(coordinate); + MGLRadianCoordinate2D radianVertex = MGLRadianCoordinateAtDistanceFacingDirection(radianCenter, + distance / mbgl::util::EARTH_RADIUS_M, + MGLRadiansFromDegrees(direction)); + return MGLLocationCoordinateFromRadianCoordinate(radianVertex); +} + CLLocationDirection MGLDirectionBetweenCoordinates(CLLocationCoordinate2D firstCoordinate, CLLocationCoordinate2D secondCoordinate) { // Ported from https://github.com/mapbox/turf-swift/blob/857e2e8060678ef4a7a9169d4971b0788fdffc37/Turf/Turf.swift#L23-L31 MGLRadianCoordinate2D firstRadianCoordinate = MGLRadianCoordinateFromLocationCoordinate(firstCoordinate); |