dstvparser

dstvparser is a Python library for parsing and analyzing DSTV files commonly used in the structural steel industry.
It allows easy extraction of profile information, detection of inclined cuts, and basic automation of file classification.

Features

• Parse DSTV files and extract profile headers and geometry
• Support both .nc and .nc1 files
• Detect inclined cuts on flanges and webs
• Classification and sorting of files based on detected features
• Modular structure: easy to extend or integrate into larger workflows
• Automatic parser selection via Factory (detects .nc or .nc1)
  or you can use a specific parser directly if needed

Clone the repository:

git clone https://github.com/serg-you-lin/dstvparser.git

Requirements

• Python 3.9+

Installation

You can install the package:

pip install dstvparser

Development notes

This project is under active development. Some features related to NC1 profiles are currently incomplete due to the lack of available sample files for proper development and testing. Contributions or example files are welcome to help expand support.

How to Use

Basic example

from dstvparser.parsers.nc_file_parser import NCFileParser

nc_file = "your_file.nc"
parser = NCFileParser(str(nc_file))
profile = parser.parse()

print(profile.get_header())

Example use case: Split Profiles by feature

One common use case is to split NC profiles based on profile type or specific geometric characteristics, such as the presence of holes or inclined cuts.

from dstvparser.parsers.nc_file_parser import NCFileParser

input_folder = "your_folder"
sets_by_type = {}

for file_path in input_folder.glob("*.nc"):
    try:
        parser = NCFileParser(str(file_path))
        profile = parser.parse()
        profile_type = profile.code_profile

        if profile_type not in sets_by_type:
            sets_by_type[profile_type] = []

        sets_by_type[profile_type].append(file_path.name)

    except Exception as e:
        print(f"Failed to process {file_path.name}: {e}")

# Print grouped profiles
for profile_type, files in sets_by_type.items():
    print(f"{profile_type}:", len(files))

This script:

• Scans a folder containing .nc files
• Parses each file using the NCFileParser
• Checks for inclined flange/web cuts
• Copies the file into either the Inclined cuts or Straights folder, accordingly,
  allowing for organized separation and easier management of files based on their geometric features for further processing or review.

Inspection scripts

The examples folder contains manual inspection scripts. These can be run directly after installing the package with pip install -e ..

License

MIT License — feel free to use, modify, and share with attribution.

Contributions

Pull requests are welcome! If you find issues or have suggestions, please open an issue in the repository.

Author

Federico Sidraschi https://www.linkedin.com/in/federico-sidraschi-059a961b9/