Autotek autocad raster design 2010 用户手册

High deviation creates a polyline with fewer points that is less faithful to
the original raster. Polylines with fewer points require less memory.
Low deviation creates a polyline with more points that more closely matches
the raster path. Polylines with more points require more memory.

Contour Creates

Specifies the type of entity the Contour Follower creates.

NOTE The follower can only create contour objects if Raster Design is running
on AutoCAD Land Desktop.

Elevation

Specifies one of the following:

■

ELEVATION assigns an elevation value based on the AutoCAD
ELEVATION variable.

■

Zero assigns an elevation value of 0.

■

Preset assigns the value that you specify in the Preset Elevation text box
to all polylines and contour objects created by the Contour Follower.

■

Prompt causes Raster Design to prompt you for elevation when the
follower is finished.

■

Use Existing causes Raster Design to prompt you to select an existing
contour or polyline to which the elevation value can be matched.

Elevation Interval

Specifies the amount Raster Design adds or subtracts from the last elevation
value you entered to create a suggested elevation value.

Elevation Interval

Specifies the amount Raster Design adds or subtracts from the last elevation
value you entered to create a suggested elevation value.

Use Raster Impact Points Only

Instructs the follower to pause only at a 

 (page 395),

ignoring other vertices.

Ignore Raster Speckles

Prevents the follower from pausing at raster impact points involving raster
speckles.

VTools Follower Tab (Raster Design Options Dialog Box) | 361