Loading and Unloading Point Clouds

[mkPWUGQ]

Hello! 🙂

I am having trouble figuring out how to unload a point cloud via the API.

Initially loading a point cloud from a file and creating an instance is straightforward (F# Code):

let cloudType = PointCloudType.Create(doc, engine, path)
let cloudInstance = PointCloudInstance.Create(doc, cloudType.Id, Transform.Identity)

But unloading the cloud seems to be trickier:

I tried

• creating a `RevitLinkType` with `RevitLinkType.Create(...)` to call `RevitLinkType.Unload()`.
  But `RevitLinkType.Create(...)` needs a `ModelPath` or an `ExternalResourceReference`, which I was not able to get from my point cloud.
• casting the `PointCloudType` to a `RevitLinkType`. This also does not work.
• using ExternalFileUtils after reading Remove DWF Links.
  But there is no `ExternalFileReference` associated with a `PointCloudType`.
  

  ExternalFileUtils.GetExternalFileReference(doc, cloudType.Id)

What am I missing?

Thanks for your help! 🙂