1st question: Missing room models
I used the model-derivative api from Forge with generatedMasterViews params to extract room nodes from the cloud Revit model (BIM360Team) it work perfectly fine for some model but I had the missing room issues with others.
Successful translated model
Some of the translated model's room nodes was missing and that's weird because their height and phase are the same and the rooms in 2d view were shown.
2D views has no problem at all
3D room nodes in the same floor were missing
So my question is, are their some limitation to extract the room geometry and convert to .svf files? e.g. publish view setting / view range / crop views / crop region ? or something I'm missing in my request ? I tried to align all the parameter or remove some component (e.g. furniture) but the result still the same. If you guys had noticed this issues before please help, your help would be appreciate.
2nd question: Room mesh and materials
I've write the function to highlight the selected elements and its work with almost every nodes except the room elements.
const highLightElement = (dbId, hexColor) => {
const myMaterial = createMaterial(hexColor)
const instanceTree = viewerApp.model.getInstanceTree()
const fragList = viewerApp.model.getFragmentList()
instanceTree.enumNodeFragments(dbId, function(fragId) {
fragList.setMaterial(fragId, myMaterial)
const fragProxy = viewerApp.impl.getFragmentProxy(viewerApp.model, fragId)
fragProxy.scale = new window.THREE.Vector3(scaleRatio, scaleRatio, scaleRatio)
fragProxy.updateAnimTransform()
}, true)
viewerApp.impl.invalidate(true)
}
The material of the room was gloomy white but if use section tool on it the section color already change to the color I choose (0xAB00EE - magenta). I don't know that is the room mesh different from others? or might be need some special procedure to do so?
Successful coloring nodes
Room nodes coloring
Z-section of colored room nodes
Regarding issue #1, it's possible that there are certain limitations preventing the Forge Model Derivative service from extracting room information but that would be more on the Revit side. If you wouldn't mind sharing the Revit model with us (confidentially) via forge (dot) help (at) autodesk (dot) com, we'd be happy to investigate it with the engineering team. In that case, please indicate which rooms are missing, too.
Regarding issue #2, from the Forge Viewer standpoint, rooms are just another geometry in the scene, with the only difference that this geometry is usually transparent and hidden by default. As far as I know, the visibility flag should not interfere with something like setting the material of a fragment but double-check if that really isn't the root cause.
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
I generated (in debug mode an addin) DirectShape as a Volume of a Room as in:
https://github.com/jeremytammik/RoomVolumeDirectShape
Rooms are generated and REVIT file is saved correctly, then I send it to FORGE for processing and I extract Model View Metadata Properties (mvmp) and the OBJ.
The issue is that MVMP does not contain any information of recently generated room volumes, the object is:
DirectShape ds = DirectShape.CreateElement(doc, _id_category_for_direct_shape);
ds.ApplicationId = id_addin;
ds.ApplicationDataId = r.UniqueId;
ds.SetShape(geo.ToList<GeometryObject>());
ds.get_Parameter(_bip_properties).Set(json);
ds.Name = "Room_Max_is_an_okayish_dev_" + r.Name;
The question here is: how should I modify it so it will be included in the extraction mvmp.json?
I suspect I need to tag it somehow or add it to some sort of collection.
Please help.
Thank you in advance.
In Revit, you can define which views are to be included in the Forge translation process.
Ensure that you see your direct shapes in at least one of your Revit views, and that this view is earmarked for translation to Forge.
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
});
I am developing a web application (using javascript) which uses forge viewer API.
In the application I display values of certain properties to the user.
I use Autodesk.Viewing.GuiViewer3D.getProperties to get the properties and from there find he specific property I want.
I believe I get an object of type PropertyResult (https://forge.autodesk.com/en/docs/viewer/v7/reference/globals/PropertyResult/) for this example will assign it to "prop".
Then I display the property value with the unit by (assuming I know it is a number and has units):
var res = prop.displayValue.toFixed(2) + " " + prop.units;
This worked as we wanted when used on models from revit 2019 or 2020.
Showing for example:
"102.79 m^2"
However in model from revit2021 it will show:
"335.59 autodesk.unit.unit:squareMeters-1.0.1"
I realize this happened because of the unit change in RevitAPI for 2021, however I have been trying to find a JS method to get the user friendly name from the new Autodesk unit type and wasn't able to find one.
Will appreciate if anyone can direct me to that method or offer an alternative solution.
Thank you,
This is a known problem that we've discovered recently. Unfortunately, there's no official workaround, and so if you need to compose measurements with units, for now you would have to map the Revit 2021 unit IDs to their display variants, e.g., mapping autodesk.unit.unit:squareMeters-1.0.1 to m^2.
Please stay tuned to the Model Derivative service changelog.
I'd like to make a function to show models on a level which someone selected like a function that we can see in BIM 360 docs.
level selection in BIM 360 docs
Is there such kind of extension?
Try the Autodesk.AEC.LevelsExtension extension - so long as the model comes with the required AEC data about existing floors:
viewer.addEventListener(Autodesk.Viewing.OBJECT_TREE_CREATED_EVENT/Autodesk.Viewing.GEOMETRY_LOADED_EVENT , //wait till design data is loaded
viewer.loadExtension('Autodesk.AEC.LevelsExtension')
)
You can inspect whether your model contains the necessary data using model.getAecModelData()