2.0

Table Of Contents
Working with the Vertical Alignment Tangents for the Finished Ground Centerline
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Working with the Vertical Alignment Tangents
for the Finished Ground Centerline
You can draw vertical alignment tangents for the finished ground centerline
using the FG Centerline Tangents commands on the Profile menu. With these
commands, you can perform the following tasks:
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Set the current layer for the finished ground centerline
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Rotate the AutoCAD crosshairs to match the grade of the finished ground
centerline
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Draw vertical alignment tangents, change the grade going into and coming
out of the finished ground centerline
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Move the point of vertical intersection for the finished ground centerline
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Label the finished ground tangents
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List the finished ground tangent data
Setting the Current Layer for the Finished
Ground Centerline
Before drawing vertical tangents and curves to represent the finished ground
centerline, use the Set Current Layer command to set the current layer to the
default layer that was established.
NOTE
When you define the finished ground centerline, all other layers except the
finished ground centerline layer are temporarily turned off so you can easily
select the tangents and vertical curves.
To set the current layer for the finished ground centerline
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From the Profiles menu, choose FG Centerline Tangents
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Set Current Layer.
The current layer is set to the layer designated for the finished ground
centerline when the profile was created. If the specified layer does not exist,
it is created. The layer set by this command remains current until you set a
new layer.
Rotating the AutoCAD Crosshairs to Match the
Grade of the Finished Ground Centerline
You can use the Crosshairs @ Grade command to rotate the AutoCAD crosshairs
so that they match the grade at which you want to draw the finished ground
tangents. This command sets the AutoCAD ORTHO mode on and rotates the
AutoCAD crosshairs to a grade based on the entered value and the vertical
exaggeration of the current profile. The command works by setting AutoCAD
SNAP rotation to the selected grade. This makes it easier to draw lines at the
specified grade when you use the AutoCAD LINE command.