I'm afraid I can't quite follow what you're trying to achieve. Could you describe your use case in some more detail?
Do you want to recognize and track a real world object? Or do you simply want to render a virtual 3D model at a specific real world location?
I want to quickly track 3D model objects as soon as I press a button, but can I?
Now, once ARView is closed and opened again, it becomes traceable and fits within the screen.
I refer to this site, but it does not go well.
Please let me know if there are other sites or codes that can be help.