Autotek autocad raster design 2010 用户手册

■

Enter d (Direction), then click the direction you want the follower
togo. You do not have to click on the entity, only near it, to specify
the direction.

■

Enter o (Continue) to make the follower continue in the current
direction.

■

Enter v (Vector), then select the vector to follow. You must specify
the first and last vertices of the vector. ProdNameShort follows the
vector entity between these vertices.

■

Enter c (Close) to close the polyline by drawing a single segment
between the two decision points.

■

Enter j (Join), then click an existing vector polyline to join to the
current polyline.

■

Press Esc to cancel the current polyline and begin another.

■

Press Enter to accept the current polyline and begin another.

4 Repeat step 3, or press Enter to exit the command.

NOTE Use raster snapping to make it easier to pick points on the raster entity you
are converting. For more information, see 

 (page 237).

Menu

Image  ➤  Vectorization Tools  ➤  Polyline Follower

Raster Design Toolbar

Command Line

vfpline

This tool traces raster contour lines and converts them to AutoCAD polyline
entities or to contour objects if you are using Autodesk Land Desktop.

220 | Chapter 8   Converting Raster Entities to Vector