GTCO Summagraphics ADB Interface - Users Guide - Manual (Page 20)

Summagraphics 20
How to Change the Viewport
You can define the viewport size and shape with the PixScale function. You define the
viewport location with the Offset function. Both of these options are available in the
Control Panel under the SummaTablet icon. The Control Panel can be accessed at any time
and change the tablet setup options without closing the application currently being used.
PixScale
PixScale is the number of screen pixels the pointer moves for each inch (mm) of
stylus/cursor movement on the tablet. For example, an X PixScale of 72 is:
PixScale lets you:
 Accommodate a wide variety of computer screen resolutions
 Enlarge or reduce screen images relative to the tablet. For example, one inch on the
tablet can equal two inches on the screen. One inch on the tablet can equal ½ inch
on the screen.
PixScale is measured in the selected unit of measure, inches or millimeters. The defaults
are X = 72 ppi, Y = 72 ppi (pixels per inch).