This can be done with the API: img = viewer.render(viewer.getPitch(), viewer.getYaw(), viewer.getHfov(), {returnImage: true});, where viewer is the Pannellum instance, should return a data URI of the current view.

I would like to know if it’s possible to get a snapshot of the positioned part of the picture with Pannellum framework? How can I do this?

Thank you in advance

I don’t see any reason why it wouldn’t work with Angular 4. The API is documented at pannellum.org.

Take a look at the custom controls example and the loadScene API method. Add all the images to one configuration, like creating a tour, but don’t link them with hot spots. Then add custom controls for cycling through the images, which call the loadScene method with the appropriate scene ID to cycle through the images. However, if you’re trying to mix panoramas with regular images, it will be more difficult, since you’ll have to figure out how to integrate Pannellum with whatever slider library you’re trying to use.