iTwin Reality Data integration

Apps/Sandcastle/gallery/iTwin Demo.html

@@ -120,18 +120,28 @@
         scene.primitives.add(surroundingArea);
         scene.primitives.add(station);
 
+        // Create tileset of the reality data mesh
+        const iTwinId = "535a24a3-9b29-4e23-bb5d-9cedb524c743";
+        const realityMeshId = "85897090-3bcc-470b-bec7-20bb639cc1b9";
+        const realityMesh = await Cesium.ITwinData.createTilesetForRealityDataId(
+          iTwinId,
+          realityMeshId,
+        );
+        scene.primitives.add(realityMesh);
+
         Sandcastle.addToolbarButton(
           "Toggle Surrounding Area",
-          function () {
-            surroundingArea.show = !surroundingArea.show;
-          },
+          () => (surroundingArea.show = !surroundingArea.show),
           "layers",
         );
         Sandcastle.addToolbarButton(
           "Toggle Station Model",
-          function () {
-            station.show = !station.show;
-          },
+          () => (station.show = !station.show),
+          "layers",
+        );
+        Sandcastle.addToolbarButton(
+          "Toggle Reality Mesh",
+          () => (realityMesh.show = !realityMesh.show),
           "layers",
         );
 

packages/engine/Source/Core/ITwinPlatform.js

@@ -37,6 +37,57 @@ ITwinPlatform.ExportType = Object.freeze({
   "3DTILES": "3DTILES",
 });
 
+/**
+ * Types of Reality data
+ * @see https://developer.bentley.com/apis/reality-management/rm-rd-details/#types
+ * @enum {string}
+ */
+ITwinPlatform.RealityDataType = Object.freeze({
+  Cesium3DTiles: "Cesium3DTiles",
+  PNTS: "PNTS",
+  OPC: "OPC",
+  RealityMesh3DTiles: "RealityMesh3DTiles",
+  Terrain3DTiles: "Terrain3DTiles",
+  "3MX": "3MX",
+  "3SM": "3SM",
+  CCCloudProject: "CCCloudProject",
+  CCImageCollection: "CCImageCollection",
+  CCOrientations: "CCOrientations",
+  ContextCaptureInputs: "ContextCaptureInputs",
+  ContextDetector: "ContextDetector",
+  ContextScene: "ContextScene",
+  DAE: "DAE",
+  DGN: "DGN",
+  DSM: "DSM",
+  FBX: "FBX",
+  GLB: "GLB",
+  GLTF: "GLTF",
+  KML: "KML",
+  LAS: "LAS",
+  LAZ: "LAZ",
+  LOD: "LOD",
+  LodTree: "LodTree",
+  OBJ: "OBJ",
+  OMI: "OMI",
+  OMR: "OMR",
+  Orthophoto: "Orthophoto",
+  OrthophotoDSM: "OrthophotoDSM",
+  OSGB: "OSGB",
+  OVF: "OVF",
+  OBT: "OBT",
+  PLY: "PLY",
+  PointCloud: "PointCloud",
+  S3C: "S3C",
+  ScanCollection: "ScanCollection",
+  SHP: "SHP",
+  SLPK: "SLPK",
+  SpaceEyes3D: "SpaceEyes3D",
+  STL: "STL",
+  TSM: "TSM",
+  Unstructured: "Unstructured",
+  Other: "Other",
+});
+
 /**
  * Gets or sets the default iTwin access token. This token should have the <code>itwin-platform</code> scope.
  *
@@ -155,4 +206,154 @@ ITwinPlatform.getExports = async function (iModelId) {
   }
 };
 
+/**
+ * @typedef {Object} RealityDataExtent
+ * @private
+ * @property {{latitude: number, longitude: number}} southWest
+ * @property {{latitude: number, longitude: number}} northEast
+ */
+
+/**
+ * @typedef {Object} RealityDataRepresentation
+ * @private
+ * @property {string} id "95d8dccd-d89e-4287-bb5f-3219acbc71ae",
+ * @property {string} displayName "Name of reality data",
+ * @property {string} dataset "Dataset",
+ * @property {string} group "73d09423-28c3-4fdb-ab4a-03a47a5b04f8",
+ * @property {string} description "Description of reality data",
+ * @property {string} rootDocument "Directory/SubDirectory/realityData.3mx",
+ * @property {number} size 6521212,
+ * @property {string} classification "Model",
+ * @property {ITwinPlatform.RealityDataType} type "3MX",
+ * @property {{startDateTime: string, endDateTime: string, acquirer: string}} acquisition
+ * @property {RealityDataExtent} extent
+ * @property {boolean} authoring false,
+ * @property {string} dataCenterLocation "North Europe",
+ * @property {string} modifiedDateTime "2021-04-09T19:03:12Z",
+ * @property {string} lastAccessedDateTime "2021-04-09T00:00:00Z",
+ * @property {string} createdDateTime "2021-02-22T20:03:40Z",
+ * @property {string} ownerId "f1d49cc7-f9b3-494f-9c67-563ea5597063",
+ */
+
+/**
+ * Load the full metadata for the given iTwin id and reality data id.
+ *
+ * @private
+ *
+ * @param {string} iTwinId The id of the iTwin to load data from
+ * @param {string} realityDataId The id of the reality data to load
+ * @returns {Promise<RealityDataRepresentation>}
+ */
+ITwinPlatform.getRealityDataMetadata = async function (iTwinId, realityDataId) {
+  //>>includeStart('debug', pragmas.debug);
+  Check.typeOf.string("iTwinId", iTwinId);
+  Check.typeOf.string("realityDataId", realityDataId);
+  if (!defined(ITwinPlatform.defaultAccessToken)) {
+    throw new DeveloperError("Must set ITwinPlatform.defaultAccessToken first");
+  }
+  //>>includeEnd('debug')
+
+  const resource = new Resource({
+    url: `${ITwinPlatform.apiEndpoint}reality-management/reality-data/${realityDataId}`,
+    headers: {
+      Authorization: `Bearer ${ITwinPlatform.defaultAccessToken}`,
+      Accept: "application/vnd.bentley.itwin-platform.v1+json",
+    },
+    queryParameters: { iTwinId: iTwinId },
+  });
+
+  try {
+    const response = await resource.fetchJson();
+    return response.realityData;
+  } catch (error) {
+    const result = JSON.parse(error.response);
+    if (error.statusCode === 401) {
+      throw new RuntimeError(
+        `Unauthorized, bad token, wrong scopes or headers bad. ${result.error.details[0].code}`,
+      );
+    } else if (error.statusCode === 403) {
+      console.error(result.error.code, result.error.message);
+      throw new RuntimeError("Not allowed, forbidden");
+    } else if (error.statusCode === 404) {
+      throw new RuntimeError(
+        `Reality data not found: ${iTwinId}, ${realityDataId}`,
+      );
+    } else if (error.statusCode === 422) {
+      throw new RuntimeError(
+        `Unprocessable Entity:${result.error.code} ${result.error.message}`,
+      );
+    } else if (error.statusCode === 429) {
+      throw new RuntimeError("Too many requests");
+    }
+    throw new RuntimeError(`Unknown request failure ${error.statusCode}`);
+  }
+};
+
+/**
+ * Request the access url for the given iTwin id, reality data id and root document.
+ * The root document can be requested from the list using <code>return=representation</code>
+ * or the metadata route from {@link ITwinPlatform.getRealityDataMetadata}
+ *
+ * @private
+ *
+ * @param {string} iTwinId The id of the iTwin to load data from
+ * @param {string} realityDataId The id of the reality data to load
+ * @param {string} rootDocument The path of the root document for this reality data
+ * @returns {Promise<string>}
+ */
+ITwinPlatform.getRealityDataURL = async function (
+  iTwinId,
+  realityDataId,
+  rootDocument,
+) {
+  //>>includeStart('debug', pragmas.debug);
+  Check.typeOf.string("iTwinId", iTwinId);
+  Check.typeOf.string("realityDataId", realityDataId);
+  Check.typeOf.string("rootDocument", rootDocument);
+  if (!defined(ITwinPlatform.defaultAccessToken)) {
+    throw new DeveloperError("Must set ITwinPlatform.defaultAccessToken first");
+  }
+  //>>includeEnd('debug')
+
+  const resource = new Resource({
+    url: `${ITwinPlatform.apiEndpoint}reality-management/reality-data/${realityDataId}/readaccess`,
+    headers: {
+      Authorization: `Bearer ${ITwinPlatform.defaultAccessToken}`,
+      Accept: "application/vnd.bentley.itwin-platform.v1+json",
+    },
+    queryParameters: { iTwinId: iTwinId },
+  });
+
+  try {
+    const result = await resource.fetchJson();
+
+    const containerUrl = result._links.containerUrl.href;
+    const tilesetUrl = new URL(containerUrl);
+    tilesetUrl.pathname = `${tilesetUrl.pathname}/${rootDocument}`;
+
+    return tilesetUrl.toString();
+  } catch (error) {
+    const result = JSON.parse(error.response);
+    if (error.statusCode === 401) {
+      throw new RuntimeError(
+        `Unauthorized, bad token, wrong scopes or headers bad. ${result.error.details[0].code}`,
+      );
+    } else if (error.statusCode === 403) {
+      console.error(result.error.code, result.error.message);
+      throw new RuntimeError("Not allowed, forbidden");
+    } else if (error.statusCode === 404) {
+      throw new RuntimeError(
+        `Reality data not found: ${iTwinId}, ${realityDataId}`,
+      );
+    } else if (error.statusCode === 422) {
+      throw new RuntimeError(
+        `Unprocessable Entity:${result.error.code} ${result.error.message}`,
+      );
+    } else if (error.statusCode === 429) {
+      throw new RuntimeError("Too many requests");
+    }
+    throw new RuntimeError(`Unknown request failure ${error.statusCode}`);
+  }
+};
+
 export default ITwinPlatform;

packages/engine/Source/Scene/ITwinData.js

@@ -3,6 +3,7 @@ import defined from "../Core/defined.js";
 import Resource from "../Core/Resource.js";
 import ITwinPlatform from "../Core/ITwinPlatform.js";
 import RuntimeError from "../Core/RuntimeError.js";
+import Check from "../Core/Check.js";
 
 /**
  * Methods for loading iTwin platform data into CesiumJS
@@ -71,4 +72,67 @@ ITwinData.createTilesetFromIModelId = async function (iModelId, options) {
   return Cesium3DTileset.fromUrl(resource, options);
 };
 
+/**
+ * Create a tileset for the specified reality data id. This function only works
+ * with 3D Tiles meshes and point clouds.
+ *
+ * If the <code>type</code> or <code>rootDocument</code> are not provided this function
+ * will first request the full metadata for the specified reality data to fill these values.
+ *
+ * @experimental This feature is not final and is subject to change without Cesium's standard deprecation policy.
+ *
+ * @param {string} iTwinId The id of the iTwin to load data from
+ * @param {string} realityDataId The id of the reality data to load
+ * @param {ITwinPlatform.RealityDataType} [type] The type of this reality data
+ * @param {string} [rootDocument] The path of the root document for this reality data
+ * @returns {Promise<Cesium3DTileset>}
+ */
+ITwinData.createTilesetForRealityDataId = async function (
+  iTwinId,
+  realityDataId,
+  type,
+  rootDocument,
+) {
+  //>>includeStart('debug', pragmas.debug);
+  Check.typeOf.string("iTwinId", iTwinId);
+  Check.typeOf.string("realityDataId", realityDataId);
+  if (defined(type)) {
+    Check.typeOf.string("type", type);
+  }
+  if (defined(rootDocument)) {
+    Check.typeOf.string("rootDocument", rootDocument);
+  }
+  //>>includeEnd('debug')
+
+  if (!defined(type) || !defined(rootDocument)) {
+    const metadata = await ITwinPlatform.getRealityDataMetadata(
+      iTwinId,
+      realityDataId,
+    );
+    rootDocument = metadata.rootDocument;
+    type = metadata.type;
+  }
+
+  const supportedRealityDataTypes = [
+    ITwinPlatform.RealityDataType.Cesium3DTiles,
+    ITwinPlatform.RealityDataType.PNTS,
+    ITwinPlatform.RealityDataType.RealityMesh3DTiles,
+    ITwinPlatform.RealityDataType.Terrain3DTiles,
+  ];
+
+  if (!supportedRealityDataTypes.includes(type)) {
+    throw new RuntimeError(`Reality data type is not a mesh type: ${type}`);
+  }
+
+  const tilesetAccessUrl = await ITwinPlatform.getRealityDataURL(
+    iTwinId,
+    realityDataId,
+    rootDocument,
+  );
+
+  return Cesium3DTileset.fromUrl(tilesetAccessUrl, {
+    maximumScreenSpaceError: 4,
+  });
+};
+
 export default ITwinData;