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: Integer Double String Yes/No Side Superelevation Superelevation Axis of Rotation Slope Direction Potential Pivot
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.

Example

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.