04_ScriptsA3 - Export Survey Data to Point Data File

A3 - Export Survey Data to Point Data File

A3 - Export Survey Data to Point Data File

Script Family

Series A - Data Exchange

Purpose

Exports survey data from the current Civil 3D drawing into point data files for cross-platform exchange and archiving.

When to Use

Use A3 when a supported Civil 3D drawing created by HAPI, HyD ESCS-C3D, or CEDD ECM OneGo Suite needs to be exported to an external point data format. Use A4 instead for legacy DGN-derived drawings.

Inputs

  • Output Data Format.
  • Point Code Syntax Configuration: Compatible or Enhanced.
  • Data Source for Point Features: Block References or COGO Points.
  • Data Source for Linear Features: Feature Lines or COGO Points.
  • Output file directory and file name.

Outputs

  • ESCS Point Data File (.PT2).
  • Comma-delimited PNEZC Point Data File (.CSV).
  • Bathymetry Data File (.XYZ).

Workflow Summary

  1. Choose the output data format.
  2. Choose whether exported Point Codes should be Compatible or Enhanced.
  3. Choose the point-feature data source.
  4. Choose the linear-feature data source.
  5. Specify the output path and run the script.

Reverse-Engineering Notes

When reverse-engineering this Dynamo graph, identify:

  • Where supported source drawings are validated.
  • How the Compatible versus Enhanced Point Code export option is implemented.
  • How Block References are converted to point-feature records.
  • How COGO Points are exported as raw field data.
  • How Feature Line vertices are exported for linear features.
  • How PT2, CSV, and XYZ output writers differ.

Source Basis

  • Primary source: HAPI User Manual.pdf, Section 2.3.4.
  • This note is a manual-facing script overview, not a PythonNet3 implementation specification.

Open Questions

  • Confirm the exact Compatible Point Code conversion rules used by the current script.
  • Confirm whether exported CSV includes Style Code fields or only PNEZC fields.
Built with LogoFlowershow