Autodesk AUTOCAD 2010 - PREVIEW GUIDE Guia do Utilizador Página 155

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Lesson: Working with Units 141
Units Example
The following image illustrates the assumptions made regarding units. In this image, a single line was
drawn at a length of 18 units. When dimensioned with both a metric and imperial dimension style, the
dimensions report different lengths.
This occurs because the default dimension styles have preset conversion factors when you display
alternate units. While you could change these conversion factors to represent any conversion
imaginable, by default the software assumes a conversion using inches or millimeters as the base unit.
Setting Units
You use the Units command to set up the units for the drawing. You can change the drawing units at
any time, but it is recommended that you do so at the beginning of each drawing you create.When you
use drawing templates or the New Drawing wizard, the units for the drawing are set accordingly.
In the following image, the drawing units have been set to accept surveyor units for angle input.
Command Access
Units
Command Line: UNITS
Application menu: Drawing Utilities > Units
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