Autodesk 057B1-41A111-1001 - AutoCAD LT 2010, Руководство пользователя

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For example, to convert a drawing created in inches to centimeters, you scale
the model geometry by a factor of 2.54. To convert from centimeters to inches,
the scale factor is 1/2.54 or about 0.3937.
See also:
Set the Scale for Dimensions (page 397)
Set the Unit Format Conventions
You can set the format and the number of decimal places to be used when
you enter and display linear and angular units.
Set Linear Units
You can choose from several common conventions to represent the format
and the precision of linear distances and coordinates displayed in the Properties
Inspector palette, dynamic input, the status bar, and other locations.
For example, here are three variations of dynamic input.
Set Angular Units
You can specify that positive values of angles are measured either clockwise
or counterclockwise, and the direction of angle 0 (usually East or North). You
can enter angles using grads, radians, or surveyor's units or using degrees,
minutes, and seconds.
If you use surveyor's angles when specifying polar coordinates, indicate whether
the surveyor's angles are in the north, south, east, or west direction. For
example, to enter the relative coordinates for a property line that is 72 feet,
8 inches long with a bearing of 45 degrees north, 20 minutes, 6 seconds east,
enter @72'8"<n45d20'6"e.
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