AutoCAD 2008 User's
Guide > Create and Modify
Objects > Use Precision
Tools > Restrict Cursor
Movement >
Restrict Cursor Movement
To display a grid and set grid spacing
To turn on Snap mode and set snap spacing
To temporarily override Snap mode
To rotate the grid and snap angle and change the base point
To change the grid display between dots and lines
To change the frequency of major grid lines
To turn on or turn off Ortho mode
To turn on and turn off polar tracking
To draw objects using polar tracking
