Subassembly Composer Autocad Civil 3d Tutorial Pdf -

Even with a perfect PDF tutorial, you will hit snags. Here’s how to fix them:

| Error in Civil 3D | Cause in Subassembly Composer | Solution | | :--- | :--- | :--- | | "Corridor baseline not found" | Missing Link codes or disconnected geometry. | Ensure all shape points are connected via AddGeometry > Link. | | "Invalid target surface" | You didn’t add a Surface Target Parameter. | Go to Target Parameters and add Surface. | | Subassembly appears upside down | Sign error in Y-axis (positive is up, negative is down). | Use -DitchDepth instead of +DitchDepth. | | Logic never triggers | Case sensitivity or wrong data type. | Ensure IncludeCheckDam is Yes/No, not Double. | Subassembly Composer Autocad Civil 3d Tutorial Pdf

Advanced Workflow: Use the API Surface.GetElevationAtXY function. This allows your subassembly to read the existing ground and automatically adjust depth. Example: DeltaY = Surface.GetElevationAtXY(P1.X, P1.Y) - P1.Y. Even with a perfect PDF tutorial, you will hit snags

We will build from the center (origin) outward. We will build from the center (origin) outward

  • Point P2 (Bottom Right of Ditch):
  • Point P3 (Left Top of Ditch):
  • Point P4 (Right Top of Ditch):

    • A good PDF will include a reference table of all usable Visual Basic functions inside SAC: