Anywhere Client Graphics are Blurred

This tends to happen when the application’s minimum window size has been set too small. This can be set in the Application Configuration dialog or via a Realm Display Setup tag, with the RDS tag settings taking precedent.

The default minimum window size (if the fields are left blank) is 1366x768. This will end up being the resolution of graphics displayed on a small screen like a phone. Smaller resolutions are not recommended as some VTScada dialogs will not be fully visible (particularly at smaller heights).

If the minimums are set to, say, 1, then what will happen is the client will be displayed using a resolution that matches the device’s CSS/viewport resolution, and not its physical resolution. The CSS viewport resolution is based on the screen’s size, not its resolution (the relationship between the screen size and CSS viewport resolution is the device’s "Device Pixel Ratio"). For example, the iPhone 6’s viewport resolution is 375 x 667. With only so many CSS pixels to work with, VTScada graphics look poor. The simple solution is to get rid of the minimum size setting so that it defaults back to 1366x768.

There is also a problem with going larger. For example, at 1920x1080, even though the graphics will be sharper on a phone, they will also be smaller and hence harder to interact with on the small screen.