Autotek autocad raster design 2010 用户手册

This tool traces raster polylines and converts them to AutoCAD polyline
entities.

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1 Click Image menu  ➤  Vectorization Tools  ➤  Polyline Follower.

The following prompt appears:

Specify point to follow or [manually Add/Partial]:

2 Do one of the following:

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Enter a (Add) to manually add a point.

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Enter p (Partial) to add a partial polyline. Click two points on the
polyline to mark the start and end of the section you want to convert,
then click the polyline. The follower traces between those points, and
prompts you as shown below.

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Click a raster polyline to follow.

The following prompt appears:

Manually add point or
[Add/Switch/Backup/Rollback/Direction/cOntinue/Vector/Close/Join]:

NOTE When you use the Direction option, it becomes the default option
until the Add option is used or until the command is completed.

3 Do one of the following:

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Click to manually add a point to the polyline. If Add is not the default,
enter a (Add), then click to manually add a point to the polyline.

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Enter s (Switch) to switch between decision points.

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Enter b (Backup) to go back to the previous vertex.

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Enter r (Rollback), then click the vertex to which you want to roll
back.

Using the Polyline Follower | 219