Drag another into the flowchart, connecting it beneath P1. This creates P2 and L1 (Link 1). Set the Point Construction Type to Slope and Delta X .
Using the visual logic editor to drag-and-drop geometry elements.
Contains Geometry (Points, Links, Shapes), Advanced Geometry, and Workflow tools. civil design 3d subassembly composer tutorial pdf top
The Subassembly Composer interface consists of five key windows that can be rearranged to suit your workflow:
Let us walk through a practical example: building a standard lane with an integrated curb and gutter that responds to an offset target and superelevation. Drag another into the flowchart, connecting it beneath P1
For truly intelligent subassemblies, you can implement to repeat patterns—valuable for modeling multi-lane highways or repetitive stormwater structures. The ConditionalHorizontalTarget approach allows you to check if certain alignment or feature line targets are available before executing geometry branches, making your subassemblies robust across varying project conditions.
The Flowchart panel is where the logic of your subassembly comes to life. All flowcharts begin at an node. Drag elements from the Toolbox's Geometry section onto the flowchart canvas: Using the visual logic editor to drag-and-drop geometry
As you advance, you can leverage features like and decisions to create conditional logic (e.g., "if slope is greater than X, then add a bench"). You can also use API functions and mathematical expressions to calculate parameter values on the fly, creating incredibly responsive and intelligent designs.
Creating a custom part follows a logical narrative from a blank canvas to a functioning road element: AutoCAD Civil 3D and Subassembly Composer - Autodesk
This is where the becomes indispensable. By allowing designers to build custom parametric components visually, SAC eliminates the constraints of out-of-the-box libraries. This comprehensive tutorial provides a deep dive into the Subassembly Composer workflow, logic, and best practices, serving as a definitive resource for engineers and designers looking to elevate their corridor modeling capabilities. 1. Understanding the Subassembly Composer Interface
Set Targets for points (left/right/top/bottom as needed).