Hashes the essential components of this value by feeding them into the
given hasher.
Implement this method to conform to theHashableprotocol. The
components used for hashing must be the same as the components compared
in your type’s==operator implementation. Callhasher.combine(_:)with each of these components.
Important
In your implementation ofhash(into:),
don’t callfinalize()on thehasherinstance provided,
or replace it with a different instance.
Doing so may become a compile-time error in the future.
Hash values are not guaranteed to be equal across different executions of
your program. Do not save hash values to use during a future execution.
Important
hashValueis deprecated as aHashablerequirement. To
conform toHashable, implement thehash(into:)requirement instead.
The compiler provides an implementation forhashValuefor you.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-27 UTC."],[],[],null,["# GoogleMaps3D Framework Reference\n\nPolyline\n========\n\n struct Polyline\n\n extension Polyline : Copyable, Equatable, Escapable, Hashable, Identifiable, MapContent\n\nA 3D polyline that can be placed on a map. \n\n Map(mode: .hybrid) {\n Polyline(coordinates: [\n .init(latitude: 37.7749, longitude: -122.4194, altitude: 100),\n .init(latitude: 37.7750, longitude: -122.4193, altitude: 100),\n .init(latitude: 37.7751, longitude: -122.4192, altitude: 100),\n ])\n }\n\n- `\n ``\n ``\n `\n\n ### [==(_:_:)](#/s:12GoogleMaps3D8PolylineV2eeoiySbAC_ACtFZ)\n\n `\n ` \n Returns a Boolean value indicating whether two values are equal.\n\n Equality is the inverse of inequality. For any values `a` and `b`,\n `a == b` implies that `a != b` is `false`. \n\n #### Declaration\n\n Swift \n\n static func == (a: Polyline, b: Polyline) -\u003e Bool\n\n- `\n ``\n ``\n `\n\n ### [ContourStyle](../Structs/Polyline/ContourStyle.html)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n struct ContourStyle\n\n extension ../Structs/Polyline.html.ContourStyle : Equatable, Hashable\n\n- `\n ``\n ``\n `\n\n ### [ID](#/s:12GoogleMaps3D8PolylineV2IDa)\n\n `\n ` \n A type representing the stable identity of the entity associated with\n an instance. \n\n #### Declaration\n\n Swift \n\n @available(watchOS, introduced: 6.0)\n @available(macOS, introduced: 10.15)\n @available(iOS, introduced: 13.0)\n @available(tvOS, introduced: 13.0)\n typealias ID = String\n\n- `\n ``\n ``\n `\n\n ### [StrokeStyle](../Structs/Polyline/StrokeStyle.html)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n struct StrokeStyle\n\n extension ../Structs/Polyline.html.StrokeStyle : Equatable, Hashable\n\n- `\n ``\n ``\n `\n\n ### [add(coordinator:)](#/s:12GoogleMaps3D8PolylineV3add11coordinatoryAA20RenderingCoordinatorC_tF)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n func add(coordinator: RenderingCoordinator)\n\n- `\n ``\n ``\n `\n\n ### [altitudeMode](#/s:12GoogleMaps3D8PolylineV12altitudeModeAA08AltitudeE0Ovp)\n\n `\n ` \n Specifies how altitudes in the coordinates are interpreted.\n Default value: clampToGround. \n\n #### Declaration\n\n Swift \n\n var altitudeMode: ../Enums/AltitudeMode.html\n\n- `\n ``\n ``\n `\n\n ### [contour(_:)](#/s:12GoogleMaps3D8PolylineV7contouryA2C12ContourStyleVF)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n func contour(_ style: Polyline.../Structs/Polyline/ContourStyle.html) -\u003e Polyline\n\n- `\n ``\n ``\n `\n\n ### [contourStyle](#/s:12GoogleMaps3D8PolylineV12contourStyleAC07ContourE0Vvp)\n\n `\n ` \n Values that define how polylines are drawn to represent the contour of the Earth. \n\n #### Declaration\n\n Swift \n\n var contourStyle: Polyline.../Structs/Polyline/ContourStyle.html\n\n- `\n ``\n ``\n `\n\n ### [coordinates](#/s:12GoogleMaps3D8PolylineV11coordinatesSayAA14LatLngAltitudeVGvp)\n\n `\n ` \n Sets the coordinates of the polyline. \n\n #### Declaration\n\n Swift \n\n var coordinates: [../Structs/LatLngAltitude.html]\n\n- `\n ``\n ``\n `\n\n ### [drawOrder](#/s:12GoogleMaps3D8PolylineV9drawOrders5Int32Vvp)\n\n `\n ` \n The draw order compared to other polys.\n Default value: 0. \n\n #### Declaration\n\n Swift \n\n var drawOrder: Int32\n\n- `\n ``\n ``\n `\n\n ### [hash(into:)](#/s:12GoogleMaps3D8PolylineV4hash4intoys6HasherVz_tF)\n\n `\n ` \n Hashes the essential components of this value by feeding them into the\n given hasher.\n\n Implement this method to conform to the `Hashable` protocol. The\n components used for hashing must be the same as the components compared\n in your type's `==` operator implementation. Call `hasher.combine(_:)`\n with each of these components. \n Important\n\n In your implementation of `hash(into:)`,\n don't call `finalize()` on the `hasher` instance provided,\n or replace it with a different instance.\n Doing so may become a compile-time error in the future. \n\n #### Declaration\n\n Swift \n\n func hash(into hasher: inout Hasher)\n\n- `\n ``\n ``\n `\n\n ### [hashValue](#/s:12GoogleMaps3D8PolylineV9hashValueSivp)\n\n `\n ` \n The hash value.\n\n Hash values are not guaranteed to be equal across different executions of\n your program. Do not save hash values to use during a future execution. \n Important\n `hashValue` is deprecated as a `Hashable` requirement. To conform to `Hashable`, implement the [hash(into:)](../Structs/Polyline.html#/s:12GoogleMaps3D8PolylineV4hash4intoys6HasherVz_tF) requirement instead. The compiler provides an implementation for `hashValue` for you. \n\n #### Declaration\n\n Swift \n\n var hashValue: Int { get }\n\n- `\n ``\n ``\n `\n\n ### [id](#/s:12GoogleMaps3D8PolylineV2idSSvp)\n\n `\n ` \n Unique identifier \n\n #### Declaration\n\n Swift \n\n let id: String\n\n- `\n ``\n ``\n `\n\n ### [init(coordinates:altitudeMode:drawOrder:)](#/s:12GoogleMaps3D8PolylineV11coordinates12altitudeMode9drawOrderACSayAA14LatLngAltitudeVG_AA0kF0Os5Int32Vtcfc)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n init(coordinates: [../Structs/LatLngAltitude.html], altitudeMode: ../Enums/AltitudeMode.html = .clampToGround, drawOrder: Int32 = 0)\n\n- `\n ``\n ``\n `\n\n ### [remove(coordinator:)](#/s:12GoogleMaps3D8PolylineV6remove11coordinatoryAA20RenderingCoordinatorC_tF)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n func remove(coordinator: RenderingCoordinator)\n\n- `\n ``\n ``\n `\n\n ### [stroke(_:)](#/s:12GoogleMaps3D8PolylineV6strokeyA2C11StrokeStyleVF)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n func stroke(_ style: Polyline.../Structs/Polyline/StrokeStyle.html) -\u003e Polyline\n\n- `\n ``\n ``\n `\n\n ### [strokeStyle](#/s:12GoogleMaps3D8PolylineV11strokeStyleAC06StrokeE0Vvp)\n\n `\n ` \n Stroke style of the polyline. \n\n #### Declaration\n\n Swift \n\n var strokeStyle: Polyline.../Structs/Polyline/StrokeStyle.html\n\n- `\n ``\n ``\n `\n\n ### [update(coordinator:)](#/s:12GoogleMaps3D8PolylineV6update11coordinatoryAA20RenderingCoordinatorC_tF)\n\n `\n ` \n\n #### Declaration\n\n Swift \n\n func update(coordinator: RenderingCoordinator)"]]
