To define the variation in a template value along the
length of the bridge, use the following procedure.
Variable
constraints are added and defined in the
Solid Constraints Definition dialog.
Variable constraints are defined in a table, where each
row represents a segment of the bridge. You define the starting point of a
segment and the segment ends at the following segment's start point. You then
define the start and end values for the variable over that segment length and
how it varies between the points.
-
Select one of the variable types from the
Variables drop-down list and click
Add.
A new tab for this variable type is added.
-
Click the
Add Row tool (
).
A table row is added with some of the basic
parameters populated.
-
Select the
Location Type and then type the distance from
this type in the
Relative Location cell.
| Location Type | Description |
|---|
| Station
|
Type a station value in the
Relative Location cell. The From cell is
inactive for this option.
|
| From SupportLine
|
Type a distance from the supportline in the
Relative Location cell and then select the
supportline name in the
From cell drop-down list. |
| Ratio
|
Type a ratio value in the Relative Location
cell and then select the corresponding segment in the in the
From cell drop-down list. Note that this
can be the entire bridge or one span of the bridge. |
Tip: To
use a supportline or start of a span, select either the
From SupportLine or
Ratio options and simply use a
Relative Location value of
0.000.
-
Type the
Start Value and
End Value to use for the variable and the
start and end of the segment, respectively.
-
Select the
Transition type from the drop-down list.
- Optional:
Repeat steps 2 through 5 to add more rows to define additional
segments.
Tip: Set
the
Automatically Sort Rows option so they rows
will appear in order from the start to the end of the bridge.
-
Click
Apply.
The
Solid Constraints Definition dialog
closes and the bridge is redrawn with the variable constraints added.