About Me

Shiya Luo

Developer Evangelist @ Autodesk

I'm going to tell a story that's been haunting the design industry for years.

Buying an Aeron chair...

Outputs are proprietary formats

a mess since the 80s.

A technology that...

Runs on most devices

No need for plug-in or install

Cheap/free

Has direct access to GPU (3D rendering)

WebGL

JavaScript API that lets browsers render 3D

It's not a W3C standard... yet

It's a difficult technology to master

Autodesk came out with a 3D/2D viewer...

The Stack

Server-side Workflow

• Register + create app
• Get access token
• Create bucket
• Upload file/object to bucket
• Request translation
• Access from client

Client-Side

JavaScript API

On your page

<link rel="stylesheet" href="https://viewing.api.autodesk.com/viewingservice/v1/viewers/style.css" type="text/css">
<script src="https://viewing.api.autodesk.com/viewingservice/v1/viewers/viewer3D.min.js"></script>

<div id="viewer"></div>

Initialize with JavaScript

function initialize() {
    var options = {
        'document' : 'urn:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6bXlidWNrZXQvc2t5c2NwcjEuM2Rz',
        'env':'AutodeskProduction',
        'getAccessToken': getToken,
        'refreshToken': getToken,
        };
    var viewerElement = document.getElementById('viewer');
    var viewer = new Autodesk.Viewing.Viewer3D(viewerElement, {});

    Autodesk.Viewing.Initializer(options,function() {
        viewer.initialize();
        loadDocument(viewer, options.document);
    });
}

token

function getToken() {
    return "GX6OONHlQ9qoVaCSmBqJvqPFUT5i";
}

You should write your own token service.

loadDocument

function loadDocument(viewer, documentId) {
    // Find the first 3d geometry and load that.
    Autodesk.Viewing.Document.load(documentId, function(doc) {
    var geometryItems = [];
    geometryItems = Autodesk.Viewing.Document.getSubItemsWithProperties(doc.getRootItem(), {
        'type' : 'geometry',
        'role' : '3d'
    }, true);

    if (geometryItems.length > 0) {
        viewer.load(doc.getViewablePath(geometryItems[0]));
    }
 }, function(errorMsg) {// onErrorCallback
    alert("Load Error: " + errorMsg);
    });
}

The minimal sample code can be found on GitHub https://github.com/Developer-Autodesk/View-and-Data-Barebone

It's less than 60 lines of JavaScript + HTML

Visit us:

Check out sample apps:

Slide deck: