topic How to adjust the resolution of a SceneView? in Swift Maps SDK Questions

How to adjust the resolution of a SceneView?

IgnisDev — Mon, 30 Sep 2024 22:08:09 GMT

Hello!

I am using the ArcGIS SDK for Swift to display a 3D scene like this:

struct MySceneView: View { @StateObject private var vm = MySceneViewModel() var body: some View { SceneView(scene: vm.scene) } } @MainActor final class MySceneViewModel: ObservableObject { @Published var scene = Scene(basemapStyle: .arcGISTopographic) init() { let camera = Camera( latitude: 37.752, longitude: -122.431, altitude: 800, heading: 0, pitch: 0, roll: 0 ) scene.initialViewpoint = .init( boundingGeometry: camera.location, rotation: 0, camera: camera ) } }

While the scene itself renders correctly, the font sizes of the labels on the base map are too small, making them difficult to read. This issue also occurs when I add a vector layer to the scene; both the labels and icons appear undersized.

I suspect that the problem is happening because the SceneView is rendering the base map at a 1x scale. On Retina displays, where the pixel density is 2x or 3x, this results in smaller visual elements. Is there a way to adjust the scale or resolution of the SceneView so that the elements become more readable on high-density displays?

Thank you!

Re: How to adjust the resolution of a SceneView?

Ting — Tue, 01 Oct 2024 16:59:18 GMT

Thanks for reporting this issue.

The root cause is that the labels base layer in our scene is rasterized, not kept as vector as in a map (like in other competitor 3D maps). I've passed this feedback to our team and will let you know what we're gonna do to fix this.

Re: How to adjust the resolution of a SceneView?

IgnisDev — Thu, 03 Oct 2024 17:18:21 GMT

Thanks! I'll be curious to know what you guys come up with.

Re: How to adjust the resolution of a SceneView?

Ting — Wed, 09 Oct 2024 20:53:02 GMT

We have logged an issue for this. It indeed looks like a problem with our DPI conversion. Will keep you posted when we make the fix.