Autotek autocad raster design 2010 用户手册
NOTE The Remove Raster Under Vector tool does not remove raster data within
the selected vector, only around the selected vector. For instance, using a vector
polygon will only remove the raster around the polygon segments, ignoring the
raster data within the interior of the polygon.
the selected vector, only around the selected vector. For instance, using a vector
polygon will only remove the raster around the polygon segments, ignoring the
raster data within the interior of the polygon.
To remove raster data using existing vector geometry
1 Click Image menu ➤ Remove ➤ Raster Under Vector.
2 Select the vector geometry to remove that portion of the underlying raster
image.
NOTE A faster way to use the Remove Raster Under Vector tool is to select
the vector entity, then right-click and click Remove Raster Underneath.
the vector entity, then right-click and click Remove Raster Underneath.
Quick Reference
Menu
Image ➤ Remove ➤ Raster Under Vector
Raster Design Toolbar
Command Line
irmvexisting
Removing Raster Entities Using REM Commands
You can remove raster lines, arcs, and circles from bitonal images using raster
entity manipulation (REM) delete commands.
entity manipulation (REM) delete commands.
When you remove raster entities using these commands, Raster Design
automatically cleans up intersections with other raster entities. For example,
if you remove a line that bisects a circle, no gap is left in the circle where the
line was removed.
automatically cleans up intersections with other raster entities. For example,
if you remove a line that bisects a circle, no gap is left in the circle where the
line was removed.
In the following illustration, the left displays REM primitive line (shown in
red). The illustration on the right shows how the image appears after the
primitive line is deleted. The intersections with the circles and vertical line
are preserved.
red). The illustration on the right shows how the image appears after the
primitive line is deleted. The intersections with the circles and vertical line
are preserved.
156 | Chapter 6 Modifying Images