Autotek autocad raster design 2010 用户手册

You can use raster snaps to select the raster line, circle, or arc. For more
information, see 

 (page 237).

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 (page 189)

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 (page 187)

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 (page 198)

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 (page 199)

1 Click Image menu  ➤  Raster Entity Manipulation  ➤  Create Primitive

 ➤  Smart Pick.

2 Select the raster entity to be converted.

Menu

Image  ➤  Raster Entity Manipulation  ➤  Create Primitive  ➤  Smart Pick

REM Toolbar

Object Shortcut Menu

Right-click image ➤ REM ➤ Create ➤ Smart Pick

Command Line

issmart

You can define a primitive object using the geometry of an existing line,
polyline, arc, or circle.

For example, if a vector line is drawn over a raster line and you want to move
the raster line, you can use the vector line to define a primitive line object
and then move the raster.

Defining a REM Primitive From Existing Vectors | 185