Forge Viewer Select in a multi-model context

Question

We have extensions that currently leverage viewer.select() with a list of dbIds from the model.

Our customers would like to see secondary models in the same viewer, and

Answer 1

Before Forge Viewer v3.3, Viewer3D#select( dbIds, selectionType) didn't be exposed for the multi-model use case unfortunately. The 2nd argument of Viewer3D#select has been changed to Viewer3D#select( dbIds, model ). So, the below code snippets will changed to:

var scene = viewer.impl.modelQueue();
var models = scene.getModels();

var targetIndex = ...;
var targetModel = models[targetIndex];
var selectionType = ...;

// Method 1:
viewer.impl.selector.setSelection( dbIds, targetModel, selectionType );

// Method 2:
model.selector.select( dbIds, selectionType );

// Method 3: (After Forge Viewer v4)
viewer.select( dbIds, targetModel );

// Method 4: (After Forge Viewer v4)
var selections = [
    {
       model: targetModel,
       ids: dbIds
    }
];
viewer.impl.selector.setAggregateSelection( selections );

==== Update End ====

Unfortunately, Viewer3D#select didn't be exposed for the multi-model use case. However, there are few ways to select items via the API in multi-model environment:

var scene = viewer.impl.modelQueue();
var models = scene.getModels();

var targetIndex = ...;
var targetModel = models[targetIndex];
var selectionType = ...;

// Method 1:
viewer.impl.selector.setSelection( dbIds, targetModel, selectionType );

// Method 2:
model.selector.select( dbIds, selectionType );

// Method 3: (After Forge Viewer v4)
var selections = [
    {
       model: targetModel,
       ids: dbIds
    }
];
viewer.impl.selector.setAggregateSelection( selections );

Or, you can write your own Viewer class which extends Autodesk.Viewing.Viewer3D or Autodesk.Viewing.Private.GuiViewer3D to private a select function that supports passing model argument.