是否可以通過從外部網頁接收特定 ID 來實現 Forge Viewer 中的突出顯示功能？ (Is it possible to implement the highlight function in Forge Viewer by receiving a specific ID from an external web page?)

問題描述

是否可以通過從外部網頁接收特定 ID 來實現 Forge Viewer 中的突出顯示功能？ (Is it possible to implement the highlight function in Forge Viewer by receiving a specific ID from an external web page?)

正在使用 Forge Viewer 查看 IFC 格式項目。IFC 項目元素（頂板、樓板、右牆等）列在外部網頁上，我想實現一個功能，在選擇其中一個時在 Forge Viewer 中突出顯示。

應該我使用'GLOBALID'來實現這個功能？我一直在尋找 Forge Viewer 的 API(v7)，但我很好奇它是否提供與上述相同的功能。

參考解法

方法 1:

Yeah, it's possible. Here is a sample demonstrating this idea:

https://github.com/yiskang/forge‑viewer‑iframe‑interoperability

This sample supports two ways to locate objects:

1. By passing querying strings to viewer page's URL (See public/extlink.html):

   • urn: It stands for which model to load by the Forge Viewer.
   • idType: It stands for the IFC guid type. If the IFC model is translated by the legacy IFC pipeline, then the idType is GLOBALID. On the contrary, if you're using modern pipeline, the idType is IfcGuid.
   • guid: It stands for the IFC guid of the object you want to locate.
   
   </ul>

   With those parameters, you can locate objects after model is loading completely immediately by passing them to the URL like the below:

   
   </li>
   </ol>

   http://localhost:3000/viewer/?urn=dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6ZXh0cmFjdC1hdXRvZGVzay1pby0yMDE3bGt3ZWo3eHBiZ3A2M3g0aGwzMzV5Nm0yNm9ha2dnb2YvcmFjX2Jhc2ljX3NhbXBsZV9wcm9qZWN0X2xlZ2FjeS5pZmM&type=GLOBALID&guid=2cgXCjpDT0ZxBvxMSr3pfm
   

   1. By triggering LOCATE_ELEMENT_EVENT (See public/index.html):

   // Trigger event from iframe's parent page
   const guid = event.target.getAttribute('data‑guid');
   const idType = event.target.getAttribute('data‑idType');
   
   if (!idType || !guid) return;
   
   const iframeWind = viewerIframe.contentWindow;
   iframeWind.NOP_VIEWER.fireEvent({
       type: iframeWind.Autodesk.ADN.ElementLocator.Event.LOCATE_ELEMENT_EVENT,
       idType,
       guid
   });
   

   (by DONG HYUK LEE、Eason Kang)

   參考文件

   1. Is it possible to implement the highlight function in Forge Viewer by receiving a specific ID from an external web page? (CC BY‑SA 2.5/3.0/4.0)