Autotek autocad raster design 2010 用户手册

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页码 424
Dialog Box
Recognizing and Converting Text
Use the text recognition tools to select raster text in your drawing and convert
it to AutoCAD text or multiline text (Mtext).
Separate tools exist for recognizing plain text and text within a table. They
are very similar in operation, so both are described together in this topic.
 (page 371) dialog box
determine the search parameters for the text recognition engine and the
display of recognized text in the Verify Text window. Because no text
recognition program is 100% accurate, you should carefully review not only
the highlighted areas, but all text in the Edit window. For more information,
see 
 (page 234).
NOTE Depending on the results displayed in the Edit pane, you may want to
modify search parameters. To return to the Text Recognition Setup dialog box
click the Setup button in the Edit pane.
NOTE The Recognize Text feature is optimized for images with a resolution of
300 dpi. Images of resolution less than 150 or greater than 400, may return
undesirable results.
NOTE This procedure assumes that you have adjusted text recognition settings
for the drawing. For more information, see 
(page 230).
To recognize and convert text in a drawing
Click Image menu  ➤  Text Recognition  ➤  Recognize Text. Or Click
Image menu  ➤  Text Recognition  ➤  Recognize Table.
On the left side of the text or table that you want to convert, specify the
first corner point for the rectangle or polygon that will enclose the text
area.
Specify an angle at the command line. If the area of text to be recognized
is horizontal, enter 0. If the area of text is angled, pick a second point to
specify the angle in the drawing, or enter the numeric value at the
command line.
232 | Chapter 8   Converting Raster Entities to Vector