I have created small web app which can able to render revit model using Forge Viewer, now i want to extend to next level. there is any way to fetch URN of each object on click event. here object refer to mechanical equipment.
i want to open new web page with that particular selected object(single object). single object should be there
Not sure if you wanted the selected nodes (parts) of the model selected or visible/loaded only when the page is opened so I'd cover both options here...
You can either select the components/nodes by their dbids soon as the model's loaded (when the model tree is available so nodes can be associated with their dbids):
const selection = viewer.getSelection()
//persist or pass the dbid array as parameter for the new page
//...
NOP_VIEWER.addEventListener(Autodesk.Viewing.OBJECT_TREE_CREATED_EVENT, e=>{
viewer.select(selection) // or viewer.isolate(selection) depending on your needs
})
Or load the selected components only following here ...
Related
I need to filter out all parents and childs to obtain only BIM model information about the individual elements of the BIM model. In the Model browser the total counts of individual elements are displayed, but I cannot figure out how to get this information via the API. Below is a picture of what I'm am talking about
How can I access the count of elements of a BIM model that is displayed in the Model browser via the API?
Edit: The question is a bit more elaborate.
What we are able to discern is the root and the leaf node (the end node). When we're using this method at the screenshot shown above, we are not able to retrieve the correct parent (which shows the count of the children). Here, I'd like to get the parent named 'NLRS_31_DO_UN_deurblad_hout_opdek_glas_gen_cie:Standaard', when we're navigating from leaf 'CIE_NLRS_31_DO_o1_glas_helder'.
How can I retrieve in this example the lowest child node (in AutoDesk's viewer model browser) indicated with the number '3' from the corresponding leaf node?
Suppose the dbId of the parent node 16.12-f...ihw, recht:500x 600 is 1234.
To get its child count, just call InstanceTree#getChildCount on it.
let model = viewer.getAllModels()[0];
let it = model.getInstanceTree();
let nChild = it.getChildCount( 1234 ); //!<<< here you go
We are trying to find out the object id while double click on the equipment in the Forge Viewer. It is working if we do single click. But if we double click on the equipment in forge Viewer we are not able to get the selected equipment object id. we are getting parent object id of selected equipment.
how can we control this in our web application?
Is there a possibility to call AGGREGATE_SELECTION_CHANGED_EVENT event in the button click event?
Note: We are using Forge Aggregate View and uploaded multiple models.
Edit:
We have tried the below doubleclick function but it was getting the parent object id. Example pls find the below extracted meta data:
In Aggregate Forge Viewer, we have selected object "AHU-B04IT-09A" and object id is 23611. But if we double click the AHU-B04IT-09A object in forge viewer we are getting their parent object id like 23613 instead of 23611. How to control this?
Based on the additional information you've provided, it sounds like you want to be able to find out what is currently selected in the viewer after the user double-clicks something in the scene. That can be done using the following code snippet:
viewer.canvas.addEventListener('dblclick', function (ev) {
const selection = viewer.getAggregateSelection();
console.log(selection);
});
IFC format project is being viewed with Forge Viewer. IFC project elements (top panel, slab, right wall, etc.) are listed on an external web page, and I want to implement a function that highlights in Forge Viewer when one of them is selected.
Should I use 'GLOBALID' to implement the function?
I've been looking for Forge Viewer's API(v7), but I'm curious if it provides the same functionality as above.
Yeah, it's possible. Here is a sample demonstrating this idea:
https://github.com/yiskang/forge-viewer-iframe-interoperability
This sample supports two ways to locate objects:
By passing querying strings to viewer page's URL (See public/extlink.html):
urn: It stands for which model to load by the Forge Viewer.
idType: It stands for the IFC guid type. If the IFC model is translated by the legacy IFC pipeline, then the idType is GLOBALID. On the contrary, if you're using modern pipeline, the idType is IfcGuid.
guid: It stands for the IFC guid of the object you want to locate.
With those parameters, you can locate objects after model is loading completely immediately by passing them to the URL like the below:
http://localhost:3000/viewer/?urn=dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6ZXh0cmFjdC1hdXRvZGVzay1pby0yMDE3bGt3ZWo3eHBiZ3A2M3g0aGwzMzV5Nm0yNm9ha2dnb2YvcmFjX2Jhc2ljX3NhbXBsZV9wcm9qZWN0X2xlZ2FjeS5pZmM&type=GLOBALID&guid=2cgXCjpDT0ZxBvxMSr3pfm
By triggering LOCATE_ELEMENT_EVENT (See public/index.html):
// Trigger event from iframe's parent page
const guid = event.target.getAttribute('data-guid');
const idType = event.target.getAttribute('data-idType');
if (!idType || !guid) return;
const iframeWind = viewerIframe.contentWindow;
iframeWind.NOP_VIEWER.fireEvent({
type: iframeWind.Autodesk.ADN.ElementLocator.Event.LOCATE_ELEMENT_EVENT,
idType,
guid
});
We have a web app connected with Autodesk Forge. We were able to upload and view revit files and get the metadata of the file. Now, we want to view specific item in the file without viewing the whole file. How can we make that using the Forge Viewer??
EDIT
The correct option to pass in should be ids and not dbids, been a while since I used this so had to brush up on it...
Yes simply pass in an array of dbids for Viewer to partially load the model:
const options = {
ids: [233,2333 ...]
//...
}
viewer.start/loadModel(svfUrl, options) // or viewer.loadDocumentNode(doc, geom, options)
Note that with this approach there's no option to load the rest of the nodes back w/o reloading the entire model with their dbids passed in again.
Also note that dbids are inconsistent between conversions (they are subject to change if the model is translated again) so use externalIds of a node to map it to a component in the editor space (Revit).
When I use ver.2.5 viewer.js. I can load three rvt model (a building, split each three floor to a model) in one viewer, and it fits perfectly.
After I switch to the newest viewer.js (v.2.10), three rvt model will overlap each other.
I check the difference between the v2.5 viewer and v2.10 viewer, and V2.5 has following code:
//If there is already a model loaded, we need to use the same globaOffset as the first model,
//with the assumption that multiple models are loaded into the same space (more or less).
if (this.viewer3DImpl.model && !options.globalOffset) {
options.globalOffset = this.viewer3DImpl.model.getData().globalOffset;
}
How can I get the same result as v2.5 viewer without editing the source of 2.10 viewer?
I had exactly the same problem.
Now, since 2.7, you have to get the globalOffset from your first model and create a globalOffset option to insert in your loadModel query.
var globalOffset = viewer.model.getData().globalOffset; //Get it from first model
var options = {globalOffset: globalOffset}
viewer.loadModel(path, options); //Load your second model