Define Variable

Define Variable

Specify a value or a calculation for a parameter, and then reuse to the variable in subsequent calculations.

Properties

Specify the following parameters in the Properties panel.

Variable

Name

Specifies a name for the variable.

Variable Type

Specifies the type of variable:

Default

Specifies the value that is applied when a geometry element refers to the variable.

Click [...] to open the Expression Editor, where you can enter or calculate a value.

The following table lists valid values for the unique variable types:

Variable Type	Valid Values
Side	None Left Right
Superelevation	None LeftInsideLane LeftInsideShoulder LeftOutsideLane LeftOutsideShoulder RightInsideLane RightInsideShoulder RightOutsideLane RightOutsideShoulder
Superelevation Axis of Rotation	This variable specifies whether Superelevation Axis of Rotation is supported or not. Support Unsupported
Slope Direction	AwayFromCrown TowardsCrown
Potential Pivot	This variable specifies whether the subassembly has potential pivot points for Superelevation Axis of Rotation or not Yes No

Miscellaneous

Comment

Indicates notes about the variable. Comments can be displayed in the Preview panel.

To see an example of how this geometry element is used, open the following Sample PKT file:

Define Variable Example.pkt

This example shows a simple curb.

The Height variable is set to 5.
The Width variable is set to 3.
P2 is drawn from P1 at a Delta Y value of Height divided by 3.
P3 is drawn from P2 at a Delta X value of Width and a Delta Y value of Height.
P4 is drawn from P3 at a Delta X value of Width divided by 2.
P5 is drawn from P4 at a Delta Y value of negative Height, plus the negative Y value of P2.
The shape is closed with L5, and a shape is added.

Note: To test the condition, in the example, change the Preview Value of the target surface.