Autotek autocad raster design 2010 用户手册

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页码 424
Quick Reference
Menu
Image  ➤  Remove  ➤  Diagonal Region
Raster Design Toolbar
Command Line
irubdiag
Rubbing Raster Data Within a Polygonal Region
You can remove raster data by defining a polygon around the data you want
to remove.
NOTE Unlike previous versions of Raster Design, rubs permanently change the
raster data after you have saved the image. They do not temporarily remove raster
data from the display. To reverse a rub, use the AutoCAD UNDO command.
To remove the raster data within a polygonal region
Click Image menu  ➤  Remove  ➤  Polygonal Region.
Select a minimum of three points around the raster data you want to
remove.
Right-click to close the polygon and remove the data within the polygon.
Quick Reference
Menu
Image  ➤  Remove  ➤  Polygonal Region
Raster Design Toolbar
Command Line
irubpoly
154 | Chapter 6   Modifying Images