This command allows very precise control of 3D polylines,
specifically in the ability to edit vertex elevations, as well as
add, delete, or move vertices. You can also control the
location of polyline vertices as defined by the station and offset
of the vertices relative to a Centerline.
Polyline vertices are designated as either Control or Free
vertices. The elevation of Control vertices are set and held,
the elevations of Free vertices are interpolated. In the
drawing, control vertices are shown with red boxes, along with
their vertex number and elevation. Free vertices are
displayed with blue boxes and are not annotated.
The four tabs in the panel provide
access to control of polyline vertex Elevation, Position, Offset
and Settings.
Elevation: This
tab displays the vertices of the polyline, each with a check box to
set whether it is a control vertex or free, its assigned number,
its elevation, and the slope from the previous vertex to that
vertex. Selecting a vertex highlights its grip in the
drawing. Once selected, you can enter an elevation or slope
for that vertex in the spaces below the list, thereby automatically
setting the vertex to a control vertex. The Base Elevation is
used to adjust the elevations of all the vertices
simultaneously.
Position: The
Position tab displays the coordinates of each vertex. To move
a vertex, you can type in new coordinates, use the Pick Position
icon to specify a new location for the vertex on the screen, or you
can grip the vertex and drag it to a new location.
Offset: The Offset
tab requires the selection of a Centerline to reference. Once
a Centerline is designated, the Station and Offset of each vertex
relative to the Centerline is displayed and can be edited.
Settings: The
Settings tab provides control over various overall options
pertaining to the use of the command.
Right-click menu:
There is a right-click menu available at all times which also gives
access to a variety of functions and settings.