How to save TileTreeReference ?

[edemiaochu]

Hi! How can the reference information added using the TileTreeReference and TiledGraphicsProvider classes, along with vp.addTiledGraphicsProvider(provider), be saved to a file so that it can be directly referenced the next time the file is opened? Does itwinjs-core provide related functionality?

[pmconne]

It sounds like you have written your own app that adds custom tile trees to a view. If so, it would be the responsibility of your app to save and restore that information.

[edemiaochu]

It sounds like you have written your own app that adds custom tile trees to a view. If so, it would be the responsibility of your app to save and restore that information.

Thank you very much ! By the way, will iTwin-core provide related interfaces in the future to support viewport.addTiledGraphicsProvider(provider), allowing the added TileTreeReference information to be saved to a file so that external file can be directly referenced when opening the file next time?

[pmconne]

What specifically are you using TiledGraphicsProvider for? To view multiple iModels together in a single viewport, perhaps?

[edemiaochu]

Yes. Sometimes, I want to reference the model from another iModel as a whole in the current file. This makes it easier to manage different models. Alternatively, when generating drawings, I want to reference a file that contains a drawing frame into the current file. I can copy multiple instances, and when I remove the reference, all the frames will be removed uniformly.