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Create Utility Line Definition Data from Application Layer

Use this dialog to create an SFI model with line definition data based on geometry and properties from an application layer.

Where can I find the dialog?

In the toolbox, select the icon Create Utility Line Definition Data from Application Layer...

About XREF Tables

An XREF table describes which attributes in an application layer should be linked to corresponding attributes in the line definition data.

The installation includes an XREF table, Chaindata-GVA.xrt, which is adapted to the template for Gemini VA.

With Save As..., you can make a copy of the XREF table and adapt it to your own application layers.

Data Requirements

For the XREF table Chaindata-GVA.xrt, the data in the application layer must at minimum have valid values for the following key properties:

  • S_FCODE and Dimension for lines
  • S_FCODE, Chamber Shape, Width, and Cone for points

Note

There must be points for both the center bottom chamber and the center top cover. The bottom chamber must have information about chamber shape and cone. In addition, Width and Dimension must be specified in millimeters in the application layer.

Procedure

  1. Select Create Utility Line Definition Data from Application Layer... in the toolbox.
  2. Optionally, change the XREF table using the ... button.
  3. Optionally, change the template using the ... button.
  4. Optionally, adjust parameters for Max Distance and Buffer Distance.
  5. Point and click the first line in the application layer that will be the line definition (CL) in the SFI model. The main line is marked in orange, and other included lines are marked in red.
  6. Point and click the end line in the application layer with the same theme code. The program will automatically find and mark all lines between the start and end lines. Click next to the line to start over.
  7. Click Create and Exit, or Create if you want to create more SFI models with line definition data.
  8. Enter a name for the SFI model and click Save.

You can read more about documentation of quantities in trenches in the general documentation.