cmm-measurement-parser 1.1.0

Professional CMM measurement data parser for coordinate measuring machines

CMM Measurement Parser

Professional Python package for parsing CMM (Coordinate Measuring Machine) measurement data from Japanese measurement reports, specifically Carl Zeiss CALYPSO format.

Features

• ✅ Parse Japanese CMM Reports: Handles Japanese characters and measurement formats
• ✅ Structured DataFrame Output: Clean, analyzable pandas DataFrames
• ✅ Automatic Tolerance Analysis: PASS/FAIL determination with tolerance utilization
• ✅ Excel Export: Proper Japanese character encoding for Excel compatibility
• ✅ Summary Statistics: Grouped analysis by measurement element
• ✅ Quality Control Ready: Professional reporting for manufacturing QC

Installation

pip install cmm-measurement-parser

Quick Start

import cmm_measurement_parser as cmp

# Parse your CMM measurement data
lines = your_text_data.split('\n')  # Your extracted CMM report text
df, summary = cmp.process_cmm_data(lines)

# Export results to Excel
cmp.export_to_excel(df, 'My_CMM_Analysis')

# View results
print(f"Parsed {len(df)} measurements from {len(summary)} elements")
print(f"Pass rate: {len(df[df['status'] == 'PASS']) / len(df) * 100:.1f}%")

Usage Examples

Basic Parsing

import cmm_measurement_parser as cmp

# Simple parsing
df = cmp.parse_cmm_data(lines)

# Complete processing with summary
df, summary = cmp.process_cmm_data(lines)

Advanced Usage

# Using the class directly for more control
parser = cmp.CMMParser()
df = parser.parse_lines_to_dataframe(lines)
summary = parser.create_summary_by_element(df)

Working with Results

# Filter failed measurements
failed = df[df['status'] == 'FAIL']
print(f"Failed measurements: {len(failed)}")

# Analyze by element
element_summary = df.groupby('element_name')['status'].value_counts()

# Export different formats
cmp.export_to_excel(df, 'Detailed_Analysis')
cmp.export_to_excel(summary, 'Summary_Report')

DataFrame Structure

The output DataFrame includes these columns:

Column	Description
element_name	Measurement element (ｄ-1, 円1, etc.)
measurement_type	Type of measurement (円(最小二乗法), etc.)
coordinate_type	X, Y, Z, or D coordinate
measured_value	Actual measured value
reference_value	Target/reference value
deviation	Difference from reference
upper_tolerance	Upper tolerance limit
lower_tolerance	Lower tolerance limit
within_tolerance	Boolean pass/fail
status	'PASS' or 'FAIL'
tolerance_utilization	Percentage of tolerance used

Supported Formats

• Carl Zeiss CALYPSO measurement reports
• Japanese measurement data with proper character encoding
• Coordinate measurements: X, Y, Z coordinates and diameter (D) measurements
• Multiple element types: Circles (円), planes (平面), lines (線), dimensions (ｄ-)

Requirements

• Python 3.7+
• pandas >= 1.0.0
• numpy >= 1.18.0
• openpyxl >= 3.0.0 (for Excel export)

License

MIT License - see LICENSE file for details.

Contributing

Contributions welcome! Please feel free to submit a Pull Request.

Support

For issues and questions, please use the GitHub Issues page.

Author

Created by shuhei for professional CMM measurement analysis.