ChapterĀ 1
About

This is a simple program that “stresses” your hand-eye coordination. It is basically just an Etch-A-Sketch, using your mouse. Except that it reverses the mouse coordinates. Right is left, top is bottom, left is right, and bottom is top. Moving the mouse up moves the cursor down and moving the mouse to the right moves the cursor to the left. Can you write your name or in fact draw anything other than a complete scribble? You eyes are seeing one thing and your hand is doing something completely different. To draw something, just press and hold the left mouse button down. Release the button to stop drawing. When done, you can print your creation to a PDF file (you will need a PDF viewer to view it and optionally waste some printer ink).

Based on an idea by Robin Pierce (PierceEnterprises) and impemented in Tcl/Tk by Robert Heller (Deepwoods Software).