Is it possible to set custom bounds constraints?

[oblak1]

I have a multi image layout in OSD. What I was wondering is can I set dynamic viewport constraints? As shown on the image, let's say I want to show the user only the second image so he cannot pan over those limits - the bounds could technically also be something else, like two images at once or only parts of the image.

Technically I could use a single image approach but would like to keep the multi layout approach for other reasons.

[iangilman]

There isn't really at the moment. You might be able to make it work like so:

const newBounds = viewer.world.getItemAt(1).getBounds();
viewer.viewport._setContentBounds(newBounds, viewer.world.getContentFactor());

...But _setContentBounds is a private function, so it may change or be removed in future versions of OSD. Also there may be unintended consequences.

It seems like we need to bring setHomeBounds back to cover this scenario (and possibly also for #2527). Let me know if you'd be interested in working on that.