feat(map): share canonical Foundry presentation

docs/MAP_CESIUM_REACT_ADAPTER.md

@@ -8,6 +8,19 @@ Inspector fields, tokens, provider allowlists, TileCache storage or admin
 settings. A product supplies a same-origin BFF runtime contract and persisted
 provider-neutral view state.
 
+## Canonical presentation contract
+
+The adapter accepts the complete provider-neutral Map Page presentation state
+used by the Foundry `DC Default` profile: imagery color correction, globe and
+background colors, atmosphere, fog, sun, shadows, terrain exaggeration,
+building style/detail and the elevated grid with camera-height LOD. Consumers
+must persist and pass those values explicitly; the adapter does not invent a
+second product-specific visual profile.
+
+The canonical black-and-white scene keeps imagery enabled and sets imagery
+saturation to zero. `monochrome_enabled` is a separate solid-globe mode and
+must not be used as a substitute for the `DC Default` treatment.
+
 ## Security and runtime contract
 
 - The browser receives only same-origin BFF paths.
@@ -24,6 +37,11 @@ provider-neutral view state.
   yields a degraded scene when another provider remains ready.
 - Render-loop recovery is bounded to one request; a repeated fault becomes
   `cesium_render_error`.
+- Provider attribution is always registered with Cesium. An internal sandbox
+  may route the visual credit overlay into a hidden dedicated container only
+  through the explicit optional runtime flag
+  `sandbox.hide_credit_overlay=true`. The flag is absent or false by default
+  and must remain false for every external or production release.
 
 ## Asset delivery
 

packages/map-cesium-react/src/CesiumMapRenderer.tsx

@@ -22,6 +22,17 @@ import {
 } from "./runtime.js";
 
 type CesiumNamespace = typeof CesiumModule;
+type RendererRuntime = {
+  Cesium: CesiumNamespace;
+  viewer: CesiumModule.Viewer;
+  ellipsoidTerrain: CesiumModule.EllipsoidTerrainProvider;
+  worldTerrain: CesiumModule.CesiumTerrainProvider | null;
+  imageryLayer: CesiumModule.ImageryLayer | null;
+  buildings: CesiumModule.Cesium3DTileset | null;
+  grid: CesiumModule.CustomDataSource;
+  rebuildGrid: () => void;
+};
+
 export function CesiumMapRenderer({
   runtimeConfigUrl,
   camera,
@@ -36,9 +47,23 @@ export function CesiumMapRenderer({
   const containerRef = useRef<HTMLDivElement | null>(null);
   const stateCallbackRef = useRef(onRuntimeStateChange);
   const cameraCallbackRef = useRef(onCameraChange);
+  const runtimeRef = useRef<RendererRuntime | null>(null);
+  const settingsRef = useRef(settings);
+  const layersRef = useRef(layers);
 
   stateCallbackRef.current = onRuntimeStateChange;
   cameraCallbackRef.current = onCameraChange;
+  settingsRef.current = settings;
+  layersRef.current = layers;
+
+  useEffect(() => {
+    const runtime = runtimeRef.current;
+    if (!runtime) {
+      return;
+    }
+    applyPresentation(runtime, settings, layers);
+    runtime.rebuildGrid();
+  }, [settings, layers]);
 
   useEffect(() => {
     const container = containerRef.current;
@@ -48,6 +73,8 @@ export function CesiumMapRenderer({
     const abortController = new AbortController();
     let disposed = false;
     let viewer: CesiumModule.Viewer | null = null;
+    let removeCameraListener: (() => void) | undefined;
+    let removeRenderListener: (() => void) | undefined;
     let runtimeState = initialMapRuntimeState();
 
     const publish = (next: MapRuntimeState) => {
@@ -68,10 +95,39 @@ export function CesiumMapRenderer({
         if (disposed) {
           return;
         }
-        viewer = createViewer(Cesium, container, settings);
+        const creditContainer = configuration.sandbox?.hide_credit_overlay
+          ? createSandboxCreditContainer(container)
+          : undefined;
+        viewer = createViewer(Cesium, container, creditContainer);
+        const ellipsoidTerrain = new Cesium.EllipsoidTerrainProvider();
+        const grid = new Cesium.CustomDataSource("nodedc-map-grid");
+        void viewer.dataSources.add(grid);
+        const runtime: RendererRuntime = {
+          Cesium,
+          viewer,
+          ellipsoidTerrain,
+          worldTerrain: null,
+          imageryLayer: null,
+          buildings: null,
+          grid,
+          rebuildGrid: () => undefined,
+        };
+        runtime.rebuildGrid = () => {
+          rebuildElevatedGrid(runtime, settingsRef.current, layersRef.current.grid);
+        };
+        runtimeRef.current = runtime;
+        viewer.terrainProvider = ellipsoidTerrain;
+        viewer.scene.globe.depthTestAgainstTerrain = true;
+        applyPresentation(runtime, settingsRef.current, layersRef.current);
         applyCamera(Cesium, viewer, camera);
-        const removeCameraListener = bindCamera(Cesium, viewer, cameraCallbackRef);
+        runtime.rebuildGrid();
-        const removeRenderListener = bindRenderRecovery(viewer, publish);
+        removeCameraListener = bindCamera(
+          Cesium,
+          viewer,
+          cameraCallbackRef,
+          runtime.rebuildGrid,
+        );
+        removeRenderListener = bindRenderRecovery(viewer, publish);
 
         const providerJobs = (["imagery", "terrain", "buildings"] as const).map(
           async (providerId) => {
@@ -94,15 +150,15 @@ export function CesiumMapRenderer({
                 return;
               }
               await attachProvider(
-                Cesium,
+                runtime,
-                viewer,
                 configuration.gateway.cache_proxy_prefix,
                 endpoint,
                 providerId,
                 cacheIntent,
                 false,
-                settings,
               );
+              addAttributions(Cesium, viewer, endpoint);
+              applyPresentation(runtime, settingsRef.current, layersRef.current);
               publish(
                 withProviderState(runtimeState, providerId, {
                   phase: "ready",
@@ -123,29 +179,9 @@ export function CesiumMapRenderer({
           },
         );
         await Promise.allSettled(providerJobs);
-        if (!disposed && viewer && layers.grid) {
-          viewer.imageryLayers.addImageryProvider(
-            new Cesium.GridImageryProvider({
-              cells: 16,
-              color: tokenColor(
-                Cesium,
-                container,
-                "--nodedc-text-secondary",
-                "rgba(247, 248, 244, 0.72)",
-              ),
-              glowColor: tokenColor(
-                Cesium,
-                container,
-                "--nodedc-text-muted",
-                "rgba(247, 248, 244, 0.48)",
-              ),
-              backgroundColor: Cesium.Color.TRANSPARENT,
-            }),
-          );
-        }
         if (disposed) {
-          removeCameraListener();
+          removeCameraListener?.();
-          removeRenderListener();
+          removeRenderListener?.();
         }
       } catch (error) {
         if (!abortController.signal.aborted) {
@@ -166,6 +202,9 @@ export function CesiumMapRenderer({
     return () => {
       disposed = true;
       abortController.abort();
+      removeCameraListener?.();
+      removeRenderListener?.();
+      runtimeRef.current = null;
       viewer?.destroy();
       viewer = null;
       container.replaceChildren();
@@ -176,15 +215,8 @@ export function CesiumMapRenderer({
     layers.imagery,
     layers.terrain,
     layers.buildings,
-    layers.grid,
     cacheIntent.enabled,
     cacheIntent.no_overwrite,
-    settings.atmosphere_enabled,
-    settings.lighting_enabled,
-    settings.monochrome_enabled,
-    settings.terrain_exaggeration,
-    settings.buildings_maximum_screen_space_error,
-    settings.camera_animation_enabled,
   ]);
 
   return <div ref={containerRef} className={className} data-nodedc-map-renderer="cesium" />;
@@ -193,7 +225,7 @@ export function CesiumMapRenderer({
 function createViewer(
   Cesium: CesiumNamespace,
   container: HTMLElement,
-  settings: CesiumMapRendererProps["settings"],
+  creditContainer?: HTMLElement,
 ): CesiumModule.Viewer {
   const viewer = new Cesium.Viewer(container, {
     animation: false,
@@ -210,16 +242,22 @@ function createViewer(
     terrainProvider: new Cesium.EllipsoidTerrainProvider(),
     requestRenderMode: true,
     maximumRenderTimeChange: Number.POSITIVE_INFINITY,
+    showRenderLoopErrors: false,
+    creditContainer,
   });
-  viewer.scene.globe.enableLighting = settings.lighting_enabled;
-  if (viewer.scene.skyAtmosphere) {
-    viewer.scene.skyAtmosphere.show = settings.atmosphere_enabled;
-  }
-  viewer.scene.verticalExaggeration = settings.terrain_exaggeration;
   viewer.scene.rethrowRenderErrors = false;
   return viewer;
 }
 
+function createSandboxCreditContainer(container: HTMLElement): HTMLDivElement {
+  const credits = document.createElement("div");
+  credits.hidden = true;
+  credits.setAttribute("aria-hidden", "true");
+  credits.dataset.nodedcSandboxCredits = "suppressed";
+  container.appendChild(credits);
+  return credits;
+}
+
 async function fetchProviderEndpoint(
   configuration: Awaited<ReturnType<typeof fetchMapRuntimeConfiguration>>,
   providerId: MapProviderId,
@@ -234,15 +272,14 @@ async function fetchProviderEndpoint(
 }
 
 async function attachProvider(
-  Cesium: CesiumNamespace,
+  runtime: RendererRuntime,
-  viewer: CesiumModule.Viewer,
   cacheProxyPrefix: string,
   endpoint: ProviderEndpoint,
   providerId: MapProviderId,
   cacheIntent: CesiumMapRendererProps["cacheIntent"],
   refresh: boolean,
-  settings: CesiumMapRendererProps["settings"],
 ): Promise<void> {
+  const { Cesium, viewer } = runtime;
   const publicUrl =
     providerId === "imagery" ? endpoint.options?.url : endpoint.url;
   if (!publicUrl) {
@@ -261,28 +298,39 @@ async function attachProvider(
       mapStyle: bingMapStyle(Cesium, endpoint.options?.mapStyle),
       tileProtocol: "https",
     });
-    const layer = viewer.imageryLayers.addImageryProvider(provider);
+    runtime.imageryLayer = viewer.imageryLayers.addImageryProvider(provider);
-    if (settings.monochrome_enabled) {
-      layer.saturation = 0;
-    }
     return;
   }
   if (providerId === "terrain") {
-    viewer.terrainProvider = await Cesium.CesiumTerrainProvider.fromUrl(resource);
+    runtime.worldTerrain = await Cesium.CesiumTerrainProvider.fromUrl(resource);
     return;
   }
-  const tileset = await Cesium.Cesium3DTileset.fromUrl(resource, {
+  runtime.buildings = await Cesium.Cesium3DTileset.fromUrl(resource);
-    maximumScreenSpaceError: settings.buildings_maximum_screen_space_error,
+  viewer.scene.primitives.add(runtime.buildings);
-  });
+}
-  viewer.scene.primitives.add(tileset);
+
+function addAttributions(
+  Cesium: CesiumNamespace,
+  viewer: CesiumModule.Viewer,
+  endpoint: ProviderEndpoint,
+): void {
+  for (const attribution of endpoint.attributions) {
+    if (attribution.html) {
+      viewer.creditDisplay.addStaticCredit(
+        new Cesium.Credit(attribution.html, attribution.collapsible),
+      );
+    }
+  }
 }
 
 function bindCamera(
   Cesium: CesiumNamespace,
   viewer: CesiumModule.Viewer,
   callbackRef: { current: ((camera: MapCamera) => void) | undefined },
+  onMoveEnd: () => void,
 ): () => void {
   const listener = () => {
+    onMoveEnd();
     const position = viewer.camera.positionCartographic;
     callbackRef.current?.({
       longitude: Cesium.Math.toDegrees(position.longitude),
@@ -355,16 +403,229 @@ function bingMapStyle(
   return Cesium.BingMapsStyle.AERIAL;
 }
 
+function applyPresentation(
+  runtime: RendererRuntime,
+  settings: CesiumMapRendererProps["settings"],
+  layers: CesiumMapRendererProps["layers"],
+): void {
+  const { Cesium, viewer, imageryLayer, buildings } = runtime;
+  if (imageryLayer) {
+    imageryLayer.show = layers.imagery && !settings.monochrome_enabled;
+    imageryLayer.brightness = settings.imagery_brightness / 100;
+    imageryLayer.contrast = settings.imagery_contrast / 100;
+    imageryLayer.saturation = settings.imagery_saturation / 100;
+    imageryLayer.gamma = settings.imagery_gamma / 100;
+    imageryLayer.hue = Cesium.Math.toRadians(settings.imagery_hue);
+    imageryLayer.alpha = settings.imagery_alpha / 100;
+  }
+  if (buildings) {
+    buildings.show = layers.buildings;
+    buildings.maximumScreenSpaceError =
+      settings.buildings_maximum_screen_space_error;
+    buildings.style = new Cesium.Cesium3DTileStyle({
+      color: `color('${settings.buildings_color}', ${settings.buildings_opacity})`,
+    });
+  }
+  viewer.terrainProvider =
+    layers.terrain && runtime.worldTerrain
+      ? runtime.worldTerrain
+      : runtime.ellipsoidTerrain;
+  viewer.scene.globe.show = true;
+  viewer.scene.globe.baseColor = cssColor(
+    Cesium,
+    settings.monochrome_enabled
+      ? settings.monochrome_color
+      : settings.globe_color,
+    "#15151b",
+  );
+  viewer.scene.globe.enableLighting = settings.sun_enabled;
+  viewer.scene.verticalExaggeration = clamp(
+    settings.terrain_exaggeration,
+    0.25,
+    3,
+  );
+  viewer.scene.backgroundColor = cssColor(
+    Cesium,
+    settings.background_color,
+    "#08090d",
+  );
+  viewer.scene.fog.enabled = settings.fog_enabled;
+  viewer.scene.fog.density = clamp(settings.fog_density / 10_000, 0, 0.01);
+  const atmosphere = viewer.scene.skyAtmosphere;
+  if (atmosphere) {
+    atmosphere.show = settings.atmosphere_enabled;
+    atmosphere.hueShift = clamp(settings.atmosphere_hue / 100, -1, 1);
+    atmosphere.saturationShift = clamp(
+      settings.atmosphere_saturation / 100,
+      -1,
+      1,
+    );
+    atmosphere.brightnessShift = clamp(
+      settings.atmosphere_brightness / 100,
+      -1,
+      1,
+    );
+  }
+  viewer.shadows = settings.shadows_enabled;
+  const sunDate = Cesium.JulianDate.toDate(Cesium.JulianDate.now());
+  sunDate.setUTCHours(
+    clamp(Math.round(settings.sun_hour), 0, 24),
+    0,
+    0,
+    0,
+  );
+  viewer.clock.currentTime = Cesium.JulianDate.fromDate(sunDate);
+  viewer.clock.shouldAnimate = false;
+  const sun = new Cesium.SunLight();
+  (sun as CesiumModule.SunLight & { intensity?: number }).intensity = clamp(
+    settings.sun_intensity / 100,
+    0,
+    2,
+  );
+  viewer.scene.light = sun;
+  viewer.scene.requestRender();
+}
+
+function rebuildElevatedGrid(
+  runtime: RendererRuntime,
+  settings: CesiumMapRendererProps["settings"],
+  visible: boolean,
+): void {
+  const { Cesium, viewer, grid } = runtime;
+  const entities = grid.entities;
+  entities.removeAll();
+  if (!visible) {
+    viewer.scene.requestRender();
+    return;
+  }
+
+  const cameraHeightKm =
+    Math.max(0, Number(viewer.camera.positionCartographic?.height || 0)) / 1000;
+  const stepKm =
+    !settings.grid_lod_enabled ||
+    cameraHeightKm <= settings.grid_lod_1_max_height_km
+      ? settings.grid_lod_1_step_km
+      : cameraHeightKm <= settings.grid_lod_2_max_height_km
+        ? settings.grid_lod_2_step_km
+        : settings.grid_lod_3_step_km;
+  const safeStepKm = clamp(stepKm, 0.25, 100);
+  const safeRadiusKm = clamp(settings.grid_radius_km, safeStepKm, 150);
+  const stepsPerSide = Math.min(
+    32,
+    Math.max(1, Math.floor(safeRadiusKm / safeStepKm)),
+  );
+  const cameraPosition = viewer.camera.positionCartographic;
+  const latitude = cameraPosition
+    ? Cesium.Math.toDegrees(cameraPosition.latitude)
+    : 55.751244;
+  const longitude = cameraPosition
+    ? Cesium.Math.toDegrees(cameraPosition.longitude)
+    : 37.618423;
+  const metersPerLatitudeDegree = 110_574;
+  const metersPerLongitudeDegree = Math.max(
+    1,
+    111_320 * Math.cos(Cesium.Math.toRadians(latitude)),
+  );
+  const stepMeters = safeStepKm * 1000;
+  const radiusMeters = stepsPerSide * stepMeters;
+  const deltaLatitude = stepMeters / metersPerLatitudeDegree;
+  const deltaLongitude = stepMeters / metersPerLongitudeDegree;
+  const radiusLatitude = radiusMeters / metersPerLatitudeDegree;
+  const radiusLongitude = radiusMeters / metersPerLongitudeDegree;
+  const lineColor = cssColor(Cesium, settings.grid_color, "#f5f5f5").withAlpha(
+    clamp(settings.grid_opacity / 100, 0, 1),
+  );
+  const dotColor = cssColor(Cesium, settings.grid_dots_color, "#ffffff").withAlpha(
+    clamp(settings.grid_dots_opacity / 100, 0, 1),
+  );
+  const elevation = Math.max(0, settings.grid_height_meters);
+
+  for (let index = -stepsPerSide; index <= stepsPerSide; index += 1) {
+    const nextLatitude = latitude + index * deltaLatitude;
+    const nextLongitude = longitude + index * deltaLongitude;
+    entities.add({
+      polyline: {
+        positions: [
+          Cesium.Cartesian3.fromDegrees(
+            longitude - radiusLongitude,
+            nextLatitude,
+            elevation,
+          ),
+          Cesium.Cartesian3.fromDegrees(
+            longitude + radiusLongitude,
+            nextLatitude,
+            elevation,
+          ),
+        ],
+        width: clamp(settings.grid_line_width, 1, 8),
+        material: lineColor,
+      },
+    });
+    entities.add({
+      polyline: {
+        positions: [
+          Cesium.Cartesian3.fromDegrees(
+            nextLongitude,
+            latitude - radiusLatitude,
+            elevation,
+          ),
+          Cesium.Cartesian3.fromDegrees(
+            nextLongitude,
+            latitude + radiusLatitude,
+            elevation,
+          ),
+        ],
+        width: clamp(settings.grid_line_width, 1, 8),
+        material: lineColor,
+      },
+    });
+  }
+
+  if (settings.grid_dots_enabled) {
+    const dotStride = Math.max(
+      1,
+      Math.ceil((stepsPerSide * 2 + 1) / 25),
+    );
+    for (let row = -stepsPerSide; row <= stepsPerSide; row += dotStride) {
+      for (
+        let column = -stepsPerSide;
+        column <= stepsPerSide;
+        column += dotStride
+      ) {
+        entities.add({
+          position: Cesium.Cartesian3.fromDegrees(
+            longitude + column * deltaLongitude,
+            latitude + row * deltaLatitude,
+            elevation,
+          ),
+          point: {
+            pixelSize: clamp(settings.grid_dots_size, 2, 28),
+            color: dotColor,
+            disableDepthTestDistance: Number.POSITIVE_INFINITY,
+          },
+        });
+      }
+    }
+  }
+  viewer.scene.requestRender();
+}
+
 function safeErrorCode(error: unknown): string {
   return error instanceof MapRuntimeError ? error.code : "map_provider_unavailable";
 }
 
-function tokenColor(
+function cssColor(
   Cesium: CesiumNamespace,
-  container: HTMLElement,
+  value: string,
-  token: string,
   fallback: string,
 ): CesiumModule.Color {
-  const value = getComputedStyle(container).getPropertyValue(token).trim();
+  return (
-  return Cesium.Color.fromCssColorString(value || fallback) ?? Cesium.Color.WHITE;
+    Cesium.Color.fromCssColorString(value) ??
+    Cesium.Color.fromCssColorString(fallback) ??
+    Cesium.Color.WHITE
+  );
+}
+
+function clamp(value: number, minimum: number, maximum: number): number {
+  return Math.min(maximum, Math.max(minimum, value));
 }

packages/map-cesium-react/src/contracts.ts

@@ -25,6 +25,9 @@ export type MapRuntimeConfiguration = {
     cache_proxy_prefix: string;
   };
   assets: Record<MapProviderId, number>;
+  sandbox?: {
+    hide_credit_overlay: boolean;
+  };
 };
 
 export type MapGatewayError = {
@@ -64,10 +67,44 @@ export type MapLayerVisibility = {
 
 export type MapVisualSettings = {
   atmosphere_enabled: boolean;
-  lighting_enabled: boolean;
+  atmosphere_hue: number;
+  atmosphere_saturation: number;
+  atmosphere_brightness: number;
+  fog_enabled: boolean;
+  fog_density: number;
+  sun_enabled: boolean;
+  sun_hour: number;
+  sun_intensity: number;
+  shadows_enabled: boolean;
   monochrome_enabled: boolean;
+  monochrome_color: string;
+  imagery_brightness: number;
+  imagery_contrast: number;
+  imagery_saturation: number;
+  imagery_gamma: number;
+  imagery_hue: number;
+  imagery_alpha: number;
+  globe_color: string;
+  background_color: string;
   terrain_exaggeration: number;
+  buildings_color: string;
+  buildings_opacity: number;
   buildings_maximum_screen_space_error: number;
+  grid_lod_enabled: boolean;
+  grid_height_meters: number;
+  grid_lod_1_max_height_km: number;
+  grid_lod_1_step_km: number;
+  grid_lod_2_max_height_km: number;
+  grid_lod_2_step_km: number;
+  grid_lod_3_step_km: number;
+  grid_radius_km: number;
+  grid_line_width: number;
+  grid_color: string;
+  grid_opacity: number;
+  grid_dots_enabled: boolean;
+  grid_dots_size: number;
+  grid_dots_color: string;
+  grid_dots_opacity: number;
   camera_animation_enabled: boolean;
 };
 

packages/map-cesium-react/src/providerEndpoint.ts

@@ -11,7 +11,10 @@ export type ProviderEndpoint = {
     url?: string;
     mapStyle?: string;
   };
-  attributions: readonly unknown[];
+  attributions: readonly {
+    html?: string;
+    collapsible?: boolean;
+  }[];
 };
 
 export function parseProviderEndpoint(

packages/map-cesium-react/src/runtime.ts

@@ -103,7 +103,10 @@ export async function fetchMapRuntimeConfiguration(
     !isRecord(document.assets) ||
     document.assets.imagery !== 2 ||
     document.assets.terrain !== 1 ||
-    document.assets.buildings !== 96188
+    document.assets.buildings !== 96188 ||
+    (document.sandbox !== undefined &&
+      (!isRecord(document.sandbox) ||
+        typeof document.sandbox.hide_credit_overlay !== "boolean"))
   ) {
     throw new MapRuntimeError("map_runtime_contract_mismatch");
   }