👔 Custom Tie Pattern Generator

A Python-based tool to design and generate custom tie patterns (specifically 7-fold ties) and export them as production-ready PDFs.

See it deployed here ties-marcopist.streamlit.app

Features

• Customizable Dimensions: Adjust length, wide blade width, narrow blade width, and neck width.
• Fold Options: Support for 3, 5, and 7-fold tie constructions.
• Dynamic Preview: Visualize the pattern shape and cut pieces in real-time.
• PDF Export: Generate a 1:1 scale PDF with calibration squares, split across multiple pages for easy printing.
• Cut Ratios: Fine-tune where the tie is spliced into 3 pieces to fit your fabric.

Prerequisites

This project uses uv for fast Python package management.

Installation

1. Clone the repository:

   git clone <repository-url>
   cd tie-pattern

2. Install dependencies using uv:

   uv sync

Usage

Run the Streamlit application:

uv run streamlit run src/ui.py

This will open the application in your default web browser (usually at http://localhost:8501).

Project Structure

• src/pattern.py: Core logic for geometry generation, folding calculations, and PDF export.
• src/ui.py: Streamlit user interface.
• pyproject.toml: Project dependencies and configuration.

PDF Export Details

The exported PDF is designed for printing on standard paper (A4/Letter).

• Scale: 1:1 (Real world size).
• Calibration: Each page includes a 10cm x 10cm red square. Always measure this square after printing to ensure your printer scaling is correct (set "Scale" to "100%" or "Do Not Scale" in print settings).
• Assembly: The pattern is split into 3 pieces (Wide Blade, Neck Piece, Narrow Blade).