2.0

Table Of Contents
Chapter 1 Using the Grading Commands
22
displays the station value of the new vertex at the midpoint between the
previous and the next vertices.
Click OK to accept this value or enter a new station value in the Station box
(you can also click the up and down arrows to choose the new station value).
The elevation of the new vertex is the same as the footprint elevation where the
new vertex is added. If you insert a vertex on an arc, the vertex is inserted at the
mid point, and two new arcs are created.
7 To delete a vertex, select a vertex in the spreadsheet section of the dialog box and
click the Delete Vertex button. You can not delete the first vertex or the last vertex.
8 Click the Assign Elevations button to display the Assign Elevations dialog box. You
can select one of the following methods to assign elevations:
n
Set Elevations from a Selected Surface: you can specify the surface from the
Surface list and assign elevations to all vertices from that specified surface. If
you select Actual Elevations then all footprint elevations are raised or
lowered to match the surface grade. If you select Average Elevation the
elevation of each vertex on the surface is calculated and averaged. This
elevation is then applied to the footprint.
n
Reset to Constant Elevation: you can enter the elevation and apply it
to all vertices.
9 To determine how the coordinates are displayed in the grading settings, select a
Coordinate Display Format:
n
X-Y
n
Northing  Easting