Creating a Heatmap for Rooms - No Structureinfo - data-visualization

Question

I'm working on a project in which I have to generate a heatmap for some sensors that are beeing rendered inside of a modell using forgeviewer. For the implementation I'm following this tutorial: https://forge.autodesk.com/en/docs/dataviz/v1/developers_guide/examples/create_heatmap_for_rooms/
The modell I'm using was generated through Revit and translated into .svf using the Model-Derivative-API.
My problem now is, that I cant get any room or level data from my model which are needed for the generation of the heatmap.
These lines always give me no rooms or levels, eventhough there are rooms shown in the viewers modellbrowser as shown in the picture below.
modellbrowser with rooms
const structureInfo = new Autodesk.DataVisualization.Core.ModelStructureInfo(viewer.model);
console.log("STRUCTUREINFO");
console.log(structureInfo);
...
const shadingdata= await structureInfo.generateSurfaceShadingData(devices);
console.log("SHADINGDATA");
console.log(shadingdata);
StructureInfo in console
ShadingData in console
Question now is: Why cant I get any room or level data and how can I fix this?
The only thing that came to my mind so far that I have tried was to convert the revit file into .nwd using navisworks and translating that file into .svf. But the results where the same.
Here is some more Code. Please note that the application is clientside only and wont go into production like this. I'm only creating a prototype for presentations.
export const initializeViewer = async (urn: string) => {
let viewer: Autodesk.Viewing.GuiViewer3D;
fetch("https://developer.api.autodesk.com/authentication/v1/authenticate", {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
},
body: new URLSearchParams({
client_id: "ClinetID",
client_secret: "ClentSecret",
grant_type: "client_credentials",
scope: "viewables:read",
}),
}) .then((res) => res.json())
.then((value) => {
const options = {
document: urn,
env: "AutodeskProduction",
accessToken: value.access_token,
api: "derivativeV2",
};
var container = document.getElementById("viewer-container");
if (container !== null) {
viewer = new Autodesk.Viewing.GuiViewer3D(container, {
extensions: [],
});
}
Autodesk.Viewing.Initializer(options, function onInitialized() {
addEvents();
viewer.start();
Autodesk.Viewing.Document.load(urn, onSuccess, onFailure);
});
});
const addEvents = () => {
viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, () => {
loadExtensions();
onModelLoaded(viewer);
});
....
....
async function onModelLoaded(viewer: Autodesk.Viewing.GuiViewer3D) {
const dataVizExtn: any | Autodesk.Extensions.DataVisualization = await viewer.loadExtension("Autodesk.DataVisualization");
...
const aecModelData = await viewerDocument.downloadAecModelData();
if (aecModelData) {
const levelsExt: any | Autodesk.AEC.LevelsExtension = await viewer.loadExtension("Autodesk.AEC.LevelsExtension", {
doNotCreateUI: true,
});
const floorData = levelsExt.floorSelector.floorData;
const floor = floorData[2];
levelsExt.floorSelector.selectFloor(floor.index, true);
}
const structureInfo = new Autodesk.DataVisualization.Core.ModelStructureInfo(viewer.model);
let roomDevices: Autodesk.DataVisualization.Core.RoomDevice[] = [];
devices.forEach((device) => {
let autodeskDevice: Autodesk.DataVisualization.Core.RoomDevice = {
id: device.id, // An ID to identify this device
position: device.position, // World coordinates of this device
sensorTypes: device.sensorTypes, // The types/properties this device exposes
type: "Thermometer",
};
roomDevices.push(autodeskDevice);
});
const heatmap = await structureInfo.generateSurfaceShadingData(roomDevices, undefined, "Rooms");
};

Answer 1

Looks your source model is RVT in Deutschland. If so, please use this code snippet instead.
const shadingdata = await structureInfo.generateSurfaceShadingData(devices, null, 'Räumen')
For RVT -> NWD/DWC, please check my blog post here Add Data Visualization Heatmaps for Rooms of non-Revit model part I - NWC
Querying Revit master views in the viewer:
const root = viewerDocument.getRoot();
const viewables = root.search({'type':'geometry', 'role': '3d'});
console.log('Viewables:', viewables);
const phaseViews = viewables.filter(v => v.data.name === v.data.phaseNames && v.getViewableRootPath().includes('08f99ae5-b8be-4f8d-881b-128675723c10'));
console.log('Master Views:', phaseViews);
// or this one if you just have one master view (phase) inside your model.
// viewerDocument.getRoot().getDefaultGeometry(true);