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.
When you run the command, you are first prompted to select a polyline to edit. When you pick a polyline to work with, the following control panel appears on the left side of your screen.
The top row of buttons across the top of the control panel are used
to manipulate the view in the drawing with various Zooming and Panning
options. The second row of buttons will change as you select
different tabs, but are essentially used to add vertices, delete
vertices, or pick elevations or locations for vertices.
The four tabs in the panel provide access to control of polyline
vertex Elevation, Position, Offset and Setings.
Elevation: This tab
displays the
vertices of the poyline, 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 specifiy
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, Slope, 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. For example, hinding free vertices and setting how to
report your slopes between vertices.
Right-click menu:
There is a right-click menu available at all times which also gives
access to a variety of functions and settings.