Autotek autocad raster design 2010 用户手册
Rubbing Raster Data Within a Rectangular Region
You can rub raster data within a rectangular region.
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.
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 rub the raster data within a rectangular region
1 Click Image menu ➤ Remove ➤ Rectangular Region.
2 Select a starting point for the rectangle.
3 Select the opposite corner of the rectangle to remove data within the
rectangle.
Quick Reference
Menu
Image ➤ Remove ➤ Rectangular Region.
Raster Design Toolbar
Command Line
irubrect
Remove Raster Using Existing Vector Geometry
The Remove Raster Under Vector tool allows you use existing vector geometry
to remove portions of the underlying raster image.
to remove portions of the underlying raster image.
For instance, you could use AutoCAD tools to trace a complex spline in your
image, then use the Remove Raster Under Vector tool to remove the traced
raster.
image, then use the Remove Raster Under Vector tool to remove the traced
raster.
Depending on the settings in the
(page 351) dialog box,
the removal is accomplished using either
(page 395) or raster entity
manipulation (REM) methods. If you choose the REM removal method, raster
intersections are preserved. For more information, see
intersections are preserved. For more information, see
(page 268).
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