SoQtFullViewer(3) on Linux
The text d50866185d11, as Debian 9 (Stretch) shipped it. The page shows this text now.
The SoQtFullViewer class adds some user interface components to the viewer canvas. The SoQtFullViewer is an abstract viewer class which extends it's superclass (the basic SoQtViewer class) with two major user interface additions: