2.0

Chapter 1 Using the Grading Commands
6
5 Press ENTER to complete the selection set.
The command adjusts the elevations of the points based on the slope or grade.
For example, if you selected points that were originally placed at a grade of
1.3%, 1.1%, and 2.1%, and you defined a relative hinge grade of 2%, then the
points are now placed at grades of 3.3%, 3.1%, and 4.1%.
The further the point is from the hinge line, the greater the change in elevation.
The following illustration shows point elevations adjusted by a relative hinge:
Modify by relative hinge
Changing Elevations of Points by Absolute Hinge
You can use a hinge line to edit the elevations of points or finish grade labels.
You can define the hinge line by two points and an absolute slope or grade. The
absolute slope or grade adjusts the elevation of all the selected points up or
down to match the specified slope.
You select two points to define the hinge line, and then define the grade or
slope leading away from the hinge line. The elevations of the points you select
are then adjusted based on this grade or slope from the hinge line.
To change the elevations of points or the fg labels
1 From the Grading menu, choose Modify Point Elevations ä Modify by
Absolute Hinge.
The following prompt is displayed:
Select first point:
2 Select the first point to define the hinge line by clicking in your drawing.
The following prompt is displayed:
Elevation <0.00>:
3 Enter an elevation for the first point.
You are prompted to select the second point.
4 Select the second point by clicking in your drawing.
You are prompted to enter an elevation for the second point.