erdemerikci 45d80dfaa6 Initial import: Lightning_Report with n8n integration

Fork of Lightning_Report adding:
- n8n_report_branch.json: workflow branch for storm-triggered report delivery
- report_service/: FastAPI microservice wrapping create_docx_report() so n8n
  can produce byte-identical reports without fighting the Python Code sandbox

Made-with: Cursor

2026-04-22 15:13:08 +03:00

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UTM ED50 to WGS84 Coordinate Converter

This script converts UTM (Universal Transverse Mercator) coordinates from ED50 (European Datum 1950) reference system to WGS84 format. It supports 6-degree UTM zones and handles both northern and southern hemispheres.

Features

Convert single coordinates interactively
Batch convert coordinates from CSV files
Support for all UTM zones (1-60)
Automatic handling of northern/southern hemispheres
Error handling and validation
Detailed conversion statistics

Installation

Install the required dependencies:

pip install -r utm_converter_requirements.txt

Or install manually:

pip install pyproj pandas

Usage

Interactive Mode

Run the script in interactive mode to convert single coordinates:

python utm_ed50_to_wgs84_converter.py --interactive

Example session:

UTM ED50 to WGS84 Coordinate Converter
========================================
Enter coordinates (type 'quit' to exit)

Enter easting (meters): 500000
Enter northing (meters): 4500000
Enter UTM zone (1-60): 35
Enter hemisphere (N/S) [default: N]: N

WGS84 Coordinates:
Latitude:  40.12345678°
Longitude: 32.87654321°
----------------------------------------

Batch Conversion from CSV

Convert multiple coordinates from a CSV file:

python utm_ed50_to_wgs84_converter.py input.csv output.csv

Input CSV Format

The input CSV should contain the following columns:

Column	Description	Required	Default
`easting`	UTM easting coordinate in meters	Yes	-
`northing`	UTM northing coordinate in meters	Yes	-
`zone`	UTM zone number (1-60)	Yes	-
`northern`	Hemisphere flag (True/False)	No	True

Example input CSV:

easting,northing,zone,northern,description
500000,4500000,35,True,Sample point 1
600000,4600000,36,True,Sample point 2
400000,4400000,34,True,Sample point 3

Output CSV Format

The output CSV will contain all original columns plus:

wgs84_lat: WGS84 latitude in decimal degrees
wgs84_lon: WGS84 longitude in decimal degrees

Custom Column Names

If your CSV uses different column names, specify them with command line arguments:

python utm_ed50_to_wgs84_converter.py input.csv output.csv \
    --easting-col X \
    --northing-col Y \
    --zone-col ZONE \
    --northern-col HEMISPHERE

Technical Details

Coordinate Systems

ED50 (European Datum 1950): Historical European geodetic datum
WGS84: World Geodetic System 1984, current global standard
UTM: Universal Transverse Mercator projection system

Conversion Process

ED50 UTM → WGS84 UTM: Transform between datums using pyproj
WGS84 UTM → WGS84 Lat/Lon: Convert from projected to geographic coordinates

UTM Zones

The script supports all 60 UTM zones:

Zones 1-60 cover the globe in 6-degree longitude bands
Zone 1: 180°W to 174°W
Zone 60: 174°E to 180°E

Accuracy

The conversion accuracy depends on:

Quality of the original ED50 coordinates
Geographic location (accuracy varies by region)
Typically within 1-10 meters for most European locations

Examples

Example 1: Interactive Conversion

python utm_ed50_to_wgs84_converter.py --interactive

Example 2: Batch Conversion

python utm_ed50_to_wgs84_converter.py sample_utm_ed50_data.csv converted_coordinates.csv

Example 3: Custom Column Names

python utm_ed50_to_wgs84_converter.py data.csv output.csv \
    --easting-col X_COORD \
    --northing-col Y_COORD \
    --zone-col UTM_ZONE

Error Handling

The script handles various error conditions:

Invalid UTM zones: Must be between 1-60
Missing columns: Reports which required columns are missing
Invalid coordinates: Skips invalid rows and reports warnings
File not found: Clear error messages for missing input files

Dependencies

pyproj: Coordinate transformation library
pandas: Data manipulation and CSV handling
argparse: Command line argument parsing

License

This script is provided as-is for educational and practical use.

Troubleshooting

Common Issues

"Invalid UTM zone" error: Ensure zone numbers are between 1-60
"Missing required columns" error: Check your CSV column names
Conversion failures: Verify coordinate values are numeric
Import errors: Install required dependencies with pip

Getting Help

Run the script with --help for command line options:

python utm_ed50_to_wgs84_converter.py --help

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