Autotek autocad raster design 2010 用户手册

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页码 424
All of the raster data within the defined diagonal region is selected.
See also:
 (page 187)
 (page 198)
 (page 199)
To define a diagonal region object
Click Image menu  ➤  Raster Entity Manipulation  ➤  Create Region  ➤ 
Diagonal.
Select points for the first corner point, the adjacent corner point, and the
last corner point.
Quick Reference
Menu
Image  ➤  Raster Entity Manipulation  ➤  Create Region  ➤  Diagonal
REM Toolbar
Object Shortcut Menu
Right-click image  ➤ REM  ➤ Create  ➤ Diagonal Region
Command Line
isdiagreg
Defining a REM Circular Region
A circular region object includes all of the pixels within the circle you define.
172 | Chapter 7   Raster Entity Manipulation