Autodesk Viewer 的内置扩展

Question

Autodesk Viewer can load some extensions on the 'new Autodesk.Vieweing.Viewer3D' constructor, but what are the available options? The code below came from this tutorial.

function initialize() {
   var options = {
      'document' : 'urn:<<SOME URN HERE>>',
      'env':'AutodeskProduction',
      'getAccessToken': getToken,
      'refreshToken': getToken,
   };
   var viewerElement = document.getElementById('viewer');
   var viewer = new Autodesk.Viewing.Viewer3D(viewerElement, { /* Extensions here? */});
   Autodesk.Viewing.Initializer(
      options,
      function() {
         viewer.initialize();
         loadDocument(viewer, options.document);
      }
   );
}

Answer 1

这个关于加载查看器扩展的问题的简单答案是提供一个像这样的对象：

{
    extensions: [
        'Autodesk.IoTTool', 'Autodesk.FirstPerson'
    ]
}

并且查看器会在初始化时为你调用Viewer3D.loadExtension(name,this.config)。该名称可以是 Autodesk 扩展名，也可以是您自己的扩展名，如 example 所示。查看本地的 IoTTool 扩展与来自 Autodesk 服务器的 FirstPerson 扩展。

然而，这个配置对象可以做更多的事情。例如：

{
    startOnInitialize: boolean, // (default true) the default behavior is to run the main loop immediately, unless startOnInitialize is provided and is to false.

    canvasConfig: { // (default Viewer3D.kDefaultCanvasConfig)
        disableSpinner: boolean,
        disableMouseWheel: boolean, // (default false) the name tells it
        disableTwoFingerSwipe: boolean, // (default false)

        COMMAND: {
            onObject: ACTIONS,
            offObject: ACTIONS
        },

        ...

        // COMMAND: click, clickAlt, clickCtrl, clickShift, clickCtrlShift
        // ACTIONS: selectOnly, selectToggle, deselectAll, isolate, showAll, setCOI, focus, hide

    },

    extensions: [], // will call this.loadExtension(extensions[i], this.config)

    onTriggerContextMenuCallback: <function callback>, // function (event) {}
    onTriggerSelectionChangedCallback: <function callback>, // function (event) {dbid}
    onTriggerDoubleTapCallback: <function callback>, // function (event) {}
    onTriggerSingleTapCallback: <function callback>, // function (event) {}

    viewableName: string, // the name appearing on the model dialog box

    screenModeDelegate: <class>, // to control fullscreen behaviour
}

Viewer3D.kDefaultCanvasConfig 默认值是：

Viewer3D.kDefaultCanvasConfig = {
    "click": {
        "onObject": ["selectOnly"],
        "offObject": ["deselectAll"]
    },
    "clickAlt": {
        "onObject": ["setCOI"],
        "offObject": ["setCOI"]
    },
    "clickCtrl": {
        "onObject": ["selectToggle"],
        "offObject": ["deselectAll"]
    },
    "clickShift": {
        "onObject": ["selectToggle"],
        "offObject": ["deselectAll"]
    },

    // Features that support disabling
    "disableSpinner": false,
    "disableMouseWheel": false,
    "disableTwoFingerSwipe": false
}

Autodesk Viewer 的内置扩展

Built-in extensions for Autodesk Viewer

webgl

autodesk-viewer