Autodesk Forge - 如何同步获取多个选定对象的属性

Question

In my Extension I have an ID from this.viewer.getSelection() array, eg 1234.

I've tried to get properties from this:

this.viewer.getProperties(1234,function(data) {console.log(data);},function(e1,e2) {console.log("ERROR:",e1,e2);})

But I see the error:

Properties failed to load since model does not exist

Updated question: How to get properties of multiple selected objects synchronously ?

Answer 1

Under the hood, the viewer.getProperties method calls viewer.model.getProperties , and as the error message states, viewer.model is not available when the method is called. Note that there could be several different reasons for such scenario:

• the viewer.getProperties is called on a different instance of viewer (which does not have any model loaded)
• the viewer.getProperties is called before the model has been loaded
• the viewer.getProperties is called after the model has been unloaded