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README.md

NestedViewerExtension

Demo

APS Viewer extension showing viewables related to the currently loaded model in another instance of the viewer.

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Usage

  • Load the extension in the viewer
  • Click the icon in the toolbar
  • New dialog will open, showing a dropdown list of all viewables available for the currently loaded model

Setup

Include the CSS & JS file on your page. This CDN is compatible with the lastest Viewer version (v7).

<link rel="stylesheet" href="http://cdn.jsdelivr.net/gh/autodesk-forge/forge-extensions/public/extensions/NestedViewerExtension/contents/main.css">
<script src="http://cdn.jsdelivr.net/gh/autodesk-forge/forge-extensions/public/extensions/NestedViewerExtension/contents/main.js"></script>

After Viewer is ready, preferable inside onDocumentLoadSuccess, load the extension

viewer.loadExtension("NestedViewerExtension", { filter: ["2d", "3d"], crossSelection: true })

Configuration

The extension accepts an optional options object with the following properties:

  • filter - array of allowed viewable "roles" ("2d", "3d", or both), by default: ["2d", "3d"]
  • crossSelection - boolean flag for cross-selecting elements after they're selected in the main or the nested viewer, false by default

How it works

The extension uses another instance of GuiViewer3D and places it in a custom DockingPanel. Whenever the "main" viewer loads a different model (observed via the Autodesk.Viewing.MODEL_ROOT_LOADED_EVENT event), the extension collects all viewables available in this model (using doc.getRoot().search({ type: 'geometry' })), and makes them available in the docking panel's dropdown.