I don't have a ton of experience with Perspective, but I'll provide what insight I have from the projects I've done.
I think in most situations you have 3 basic devices to design for.
- Mobile
- Tablet (iPad)
- Desktop
Coming from a traditional SCADA system (i.e. Vision), we're used to only having to consider widescreen desktop formats where 1920x1080 is the smallest resolution these days and Ignition can easily scale up from there. Having entirely different views for desktop and mobile access provides somewhat of a disjointed experience, IMO.
That said, I typically design all of my views to take full advantage of the tablet landscape area. Design the screen in percent mode and fix the aspect ratio. You can then embed that "root" view in a couple of breakpoint containers that the mobile and desktop will use. At the end of the day, this approach may take some extra screens for larger processes, because you're not taking advantage of the full area of your widescreen displays, but it saves a lot of development and maintenance time.
Here are the results:
Desktop:
iPad (native):
Mobile portrait (320x658):
Mobile landscape (658x320):
