Cant Tab

You can define how the cant effect appears in the Preview panel for a rail subassembly by defining cant parameters on the Cant tab. Cant can be previewed in Roadway Mode and in Layout Mode.

When you define the LeftRail and RightRail parameters, the Subassembly Composer treats the subassembly as a rail assembly and cant values are applied to it.

After you select the ApplyAOR check box in the Properties panel for links to which you want to apply cant, you will see the cant effect in the Preview panel in Roadway Mode.

Geometry after ApplyAOR is specified for an item in the flowchart, and which is created so that it is directly or indirectly dependent on the item which has ApplyAOR defined, is adjusted when cant is applied. For more information, see About Defining Cant for a Subassembly.

A validation process occurs in the Subassembly Composer to check whether the geometry that depends on items which have ApplyAOR specified will be updated correctly. For more information, About Cant Validation in the Subassembly Composer.

Note: You can use the Input/Output Parameters tab to add parameters that are brought into Autodesk Civil 3D when the subassembly is imported.
Cant Parameter Specifies the cant pivot type, the points that represent the left and right rails, and the delta elevations to apply:
  • CantPivotType: Specifies whether the pivot type used in the preview is CenterLine, LeftRail, or RightRail.
  • LeftRail: Specifies the point to use as the left rail pivot point in the preview.
  • LeftRailDeltaElevation: Specifies the delta elevation to use for the left rail in the preview.
  • RightRail: Specifies the point to use as the right rail pivot point in the preview.
  • RightRailDeltaElevation: Specifies the delta elevation to use for the right rail in the preview.
    • Note:
    • When the CantPivotType is set to CenterLine, the LeftRailDeltaElevation and RightRailDeltaElevation parameters should have opposite values.
    • When the CantPivotType is set to LeftRail, the LeftRailDeltaElevation should be 0.
    • When the CantPivotType is set to RightRail, the RightRailDeltaElevation should be 0.
Preview Value Specifies the value used when the parameter is drawn in the Preview panel.
Parent topic: Settings and Parameters Panel