ifc-qto-extraction

# IFC Quantity Takeoff Extraction Extract structured quantity data from BIM models (IFC, Revit) for cost estimation, material ordering, and progress tracking. ## Business Case **Problem**: Manual quantity takeoff is: - Time-consuming (40-80 hours for medium project) - Error-prone (human counting mistakes) - Not repeatable (changes require full rework) - Disconnected from design (no live updates) **Solution**: Automated QTO from BIM that: - Extracts all quantities in minutes - Groups by type, level, zone - Updates instantly with model changes - Exports to Excel for pricing **ROI**: 90% reduction in QTO time, near-zero counting errors ## DDC Tools Used ``` ┌──────────────────────────────────────────────────────────────────────┐ │ QTO EXTRACTION PIPELINE │ ├──────────────────────────────────────────────────────────────────────┤ │ │ │ INPUT CONVERT ANALYZE │ │ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ │ │ .rvt │ │ DDC │ │ Python │ │ │ │ .ifc │─────────►│Converter│───────────►│ pandas │ │ │ │ .dwg │ │ │ │ │ │ │ └─────────┘ └─────────┘ └─────────┘ │ │ │ │ │ │ ...