Screen Compass - Version 4.0 The Screen Compass allows you to accurately measure the Radius, Circumference or Area of circular or polygonal shapes on your screen. The intuitive user interface allows you to quickly align the Compass by dragging it with the mouse, and fine adjustments can be made using the keyboard or nudge buttons.This perfect compliment to the Screen Calipers and Screen Protractor, the Screen Compass is simple and easy to use with any program. You may download the feature limited trial, and evaluate the Screen Compass for as long as you need to. By purchasing the full version you can unlock the software to measure radii greater than 100 pixels, and use the advanced features.- Radius, Circumference and Area measurements - Use keyboard controls to measure precisely - Measure in pixels, inches or define your own units - 37 different polygons to measure, including