Skill173 repo starsupdated 3mo ago
cwicr-unit-converter
Convert between construction measurement units. Handle metric/imperial conversion, area/volume calculations, and unit normalization for CWICR data.
Install in Claude Code
Copygit clone --depth 1 https://github.com/datadrivenconstruction/DDC_Skills_for_AI_Agents_in_Construction /tmp/cwicr-unit-converter && cp -r /tmp/cwicr-unit-converter/1_DDC_Toolkit/CWICR-Database/cwicr-unit-converter ~/.claude/skills/cwicr-unit-converterThen start a new Claude Code session; the skill loads automatically.
Definition
SKILL.md
# CWICR Unit Converter
## Business Case
### Problem Statement
Construction data comes in various unit systems:
- Metric vs Imperial measurements
- Different unit conventions by trade
- BIM quantities need normalization
- Regional standards differ
### Solution
Comprehensive unit conversion for construction quantities, normalizing data for CWICR integration and analysis.
### Business Value
- **Accuracy** - Eliminate unit conversion errors
- **Consistency** - Standardize across projects
- **Integration** - BIM to cost data alignment
- **Global** - Support international projects
## Technical Implementation
```python
import pandas as pd
import numpy as np
from typing import Dict, Any, List, Optional, Tuple, Union
from dataclasses import dataclass
from enum import Enum
class UnitCategory(Enum):
"""Categories of measurement units."""
LENGTH = "length"
AREA = "area"
VOLUME = "volume"
WEIGHT = "weight"
TIME = "time"
QUANTITY = "quantity"
class UnitSystem(Enum):
"""Unit systems."""
METRIC = "metric"
IMPERIAL = "imperial"
MIXED = "mixed"
@dataclass
class UnitConversion:
"""Unit conversion result."""
original_value: float
original_unit: str
converted_value: float
target_unit: str
conversion_factor: float
category: UnitCategory
# Conversion factors to base units
# Base units: meter (length), m² (area), m³ (volume), kg (weight), hour (time)
CONVERSIONS = {
# Length to meters
'm': {'factor': 1.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
'meter': {'factor': 1.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
'meters': {'factor': 1.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
'cm': {'factor': 0.01, 'category': UnitCategory.LENGTH, 'base': 'm'},
'mm': {'factor': 0.001, 'category': UnitCategory.LENGTH, 'base': 'm'},
'km': {'factor': 1000.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
'ft': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},
'feet': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},
'foot': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},
'in': {'factor': 0.0254, 'category': UnitCategory.LENGTH, 'base': 'm'},
'inch': {'factor': 0.0254, 'category': UnitCategory.LENGTH, 'base': 'm'},
'inches': {'factor': 0.0254, 'category': UnitCategory.LENGTH, 'base': 'm'},
'yd': {'factor': 0.9144, 'category': UnitCategory.LENGTH, 'base': 'm'},
'yard': {'factor': 0.9144, 'category': UnitCategory.LENGTH, 'base': 'm'},
'yards': {'factor': 0.9144, 'category': UnitCategory.LENGTH, 'base': 'm'},
'mi': {'factor': 1609.344, 'category': UnitCategory.LENGTH, 'base': 'm'},
'mile': {'factor': 1609.344, 'category': UnitCategory.LENGTH, 'base': 'm'},
'lf': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'}, # Linear foot
# Area to m²
'm2': {'factor': 1.0, 'category': UnitCategory.AREA, 'base': 'm2'},
'm²': {'factor': 1.0, 'category': UnitCategory.AREA, 'base': 'm2'},
'sqm': {'factor': 1.0, 'category': UnitCategory.AREA, 'base': 'm2'},
'cm2': {'factor': 0.0001, 'category': UnitCategory.AREA, 'base': 'm2'},
'mm2': {'factor': 0.000001, 'category': UnitCategory.AREA, 'base': 'm2'},
'ha': {'factor': 10000.0, 'category': UnitCategory.AREA, 'base': 'm2'},
'hectare': {'factor': 10000.0, 'category': UnitCategory.AREA, 'base': 'm2'},
'ft2': {'factor': 0.092903, 'category': UnitCategory.AREA, 'base': 'm2'},
'sf': {'factor': 0.092903, 'category': UnitCategory.AREA, 'base': 'm2'},
'sqft': {'factor': 0.092903, 'category': UnitCategory.AREA, 'base': 'm2'},
'yd2': {'factor': 0.836127, 'category': UnitCategory.AREA, 'base': 'm2'},
'sy': {'factor': 0.836127, 'category': UnitCategory.AREA, 'base': 'm2'}, # Square yard
'acre': {'factor': 4046.86, 'category': UnitCategory.AREA, 'base': 'm2'},
# Volume to m³
'm3': {'factor': 1.0, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'm³': {'factor': 1.0, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'cbm': {'factor': 1.0, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'l': {'factor': 0.001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'liter': {'factor': 0.001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'litre': {'factor': 0.001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'ml': {'factor': 0.000001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'ft3': {'factor': 0.0283168, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'cf': {'factor': 0.0283168, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'cuft': {'factor': 0.0283168, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'yd3': {'factor': 0.764555, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'cy': {'factor': 0.764555, 'category': UnitCategory.VOLUME, 'base': 'm3'}, # Cubic yard
'cuyd': {'factor': 0.764555, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'gal': {'factor': 0.00378541, 'category': UnitCategory.VOLUME, 'base': 'm3'},
'gallon': {'factor': 0.00378541, 'category': UnitCategory.VOLUME, 'base': 'm3'},
# Weight to kg
'kg': {'factor': 1.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'kilogram': {'factor': 1.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'g': {'factor': 0.001, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'gram': {'factor': 0.001, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'mg': {'factor': 0.000001, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
't': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'ton': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'}, # Metric ton
'tonne': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'mt': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'lb': {'factor': 0.453592, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
'lbs': {'factor': 0.453592, 'category': UnitCategory.WEIGHT, 'baseMore from this repository
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