📐 Survey to CAD Professional

Convert DGPS/Total Station survey data to professional AutoCAD DXF drawings. Built for civil engineers who need quick, accurate CAD outputs from field survey data.

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✨ Features

Mode	Description
🗺️ Plot Boundaries	Convert survey points to boundary drawings with dimensions, area labels, and summary tables
📈 Contour Map	Generate contour lines from elevation data with customizable intervals
⛏️ Cut/Fill Volume	Calculate earthwork volumes for grading with visual cut/fill zones
🏗️ Subdivision	Auto-subdivide land into plots with road layouts

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🚀 Quick Start

Option 1: Run Locally

# Clone the repository
git clone https://github.com/vaibhav-2703/scad.git
cd survey-to-cad

# Create virtual environment
python -m venv .venv

# Activate virtual environment
# Windows:
.venv\Scripts\activate
# Linux/Mac:
source .venv/bin/activate

# Install dependencies
pip install -r requirements.txt

# Run the app
streamlit run app.py

Option 2: Deploy to Streamlit Cloud (Free)

1. Fork this repository
2. Go to share.streamlit.io
3. Sign in with GitHub
4. Click "New app" → Select your forked repo
5. Set main file path: app.py
6. Click "Deploy"

Your app will be live at: https://your-username-survey-to-cad.streamlit.app

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📁 Supported Input Formats

Format	Description
.DAT	DGPS/Total Station format (Point_ID, Description, Easting, Northing, Elevation)
.CSV	Standard CSV with header row
.TXT	Text files with comma/space separated values

Sample Data Format

Point_ID, Easting, Northing, Elevation, Description
a001, 500100.000, 2850100.000, 150.25, Corner
a002, 500150.000, 2850100.000, 150.30, Corner
a003, 500150.000, 2850150.000, 150.15, Corner

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📂 Project Structure

survey-to-cad/
├── app.py                  # Main Streamlit application
├── parsers.py              # Survey data file parsers
├── utils.py                # Geometry calculations & coordinate transforms
├── cad_generator_pro.py    # DXF generation for plot boundaries
├── contour_generator.py    # Contour map generation
├── volume_calculator.py    # Cut/fill volume analysis
├── subdivision_planner.py  # Land subdivision planning
├── requirements.txt        # Python dependencies
├── .streamlit/config.toml  # Streamlit configuration
└── LICENSE                 # MIT License

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🔧 Requirements

• Python 3.10+
• Dependencies: streamlit, pandas, numpy, scipy, ezdxf, pyproj, matplotlib

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📖 Usage

1. Open the app in your browser (localhost:8501 or deployed URL)
2. Select processing mode from the sidebar (Boundaries, Contour, Volume, Subdivision)
3. Configure settings (scale, intervals, project details, etc.)
4. Upload one or more survey files (.DAT, .CSV, .TXT)
5. Click "Generate" and download your DXF files

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🤝 Contributing

Contributions are welcome! Feel free to:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

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📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

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🙏 Acknowledgments

• Built with Streamlit
• DXF generation powered by ezdxf
• Coordinate transformations via pyproj

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Made with ❤️ for Civil Engineers