Open Street Maps Layer

This GeoBlazor sample, written in Blazor for .NET developers, demonstrates the OpenStreetMap layer from the ArcGIS Maps SDK for JavaScript via GeoBlazor's OpenStreetMapLayer Razor component. The page shows a 3D SceneView of the entire globe at zoom level 1, with world-elevation terrain applied to the ground. The OpenStreetMapLayer is added directly inside the Map (no portal item or API key required, because PromptForArcGISKey is set to false), so the user sees crowdsourced OpenStreetMap tiles draped over the elevation surface. There are no on-screen controls — the user simply pans, rotates, tilts, and zooms the globe to explore. The sample is intended to demonstrate using a free OpenStreetMap basemap source on a 3D scene in a Blazor application without writing JavaScript.